Schedd Daemon Configuration Options

These macros control the condor_schedd.

SHADOW¶

This macro determines the full path of the condor_shadow binary that the condor_schedd spawns. It is normally defined in terms of $(SBIN).

START_LOCAL_UNIVERSE¶

A boolean value that defaults to TotalLocalJobsRunning < 200. The condor_schedd uses this macro to determine whether to start a local universe job. At intervals determined by SCHEDD_INTERVAL, the condor_schedd daemon evaluates this macro for each idle local universe job that it has. For each job, if the START_LOCAL_UNIVERSE macro is True, then the job’s Requirements expression is evaluated. If both conditions are met, then the job is allowed to begin execution.

The following example only allows 10 local universe jobs to execute concurrently. The attribute TotalLocalJobsRunning is supplied by condor_schedd ‘s ClassAd:

START_LOCAL_UNIVERSE = TotalLocalJobsRunning < 10

STARTER_LOCAL¶

The complete path and executable name of the condor_starter to run for local universe jobs. This variable’s value is defined in the initial configuration provided with HTCondor as

STARTER_LOCAL = $(SBIN)/condor_starter

This variable would only be modified or hand added into the configuration for a pool to be upgraded from one running a version of HTCondor that existed before the local universe to one that includes the local universe, but without utilizing the newer, provided configuration files.

LOCAL_UNIV_EXECUTE¶

A string value specifying the execute location for local universe jobs. Each running local universe job will receive a uniquely named subdirectory within this directory. If not specified, it defaults to $(SPOOL)/local_univ_execute.

USE_CGROUPS_FOR_LOCAL_UNIVERSE¶

A boolean value that defaults to true. When true, local universe jobs on Linux are put into their own cgroup, for monitoring and cleanup.

LOCAL_UNIVERSE_CGROUP_ENFORCEMENT¶

When the above is true, if this boolean value which defaults to false is true, then local universe jobs need to have a request_memory and if the local universe job exceeds that, it will be put on hold.

START_SCHEDULER_UNIVERSE¶

A boolean value that defaults to TotalSchedulerJobsRunning < 500. The condor_schedd uses this macro to determine whether to start a scheduler universe job. At intervals determined by SCHEDD_INTERVAL, the condor_schedd daemon evaluates this macro for each idle scheduler universe job that it has. For each job, if the START_SCHEDULER_UNIVERSE macro is True, then the job’s Requirements expression is evaluated. If both conditions are met, then the job is allowed to begin execution.

The following example only allows 10 scheduler universe jobs to execute concurrently. The attribute TotalSchedulerJobsRunning is supplied by condor_schedd ‘s ClassAd:

START_SCHEDULER_UNIVERSE = TotalSchedulerJobsRunning < 10

START_VANILLA_UNIVERSE¶

A boolean expression that defaults to nothing. When this macro is defined the condor_schedd uses it to determine whether to start a vanilla universe job. The condor_schedd uses the expression when matching a job with a slot in addition to the Requirements expression of the job and the slot ClassAds. The expression can refer to job attributes by using the prefix JOB, slot attributes by using the prefix SLOT, job owner attributes by using the prefix OWNER, and attributes from the schedd ad by using the prefix SCHEDD.

The following example prevents jobs owned by a user from starting when that user has more than 25 held jobs

START_VANILLA_UNIVERSE = OWNER.JobsHeld <= 25

SCHEDD_USES_STARTD_FOR_LOCAL_UNIVERSE¶

A boolean value that defaults to false. When true, the condor_schedd will spawn a special startd process to run local universe jobs. This allows local universe jobs to run with both a condor_shadow and a condor_starter, which means that file transfer will work with local universe jobs.

MAX_JOBS_RUNNING¶

An integer representing a limit on the number of condor_shadow processes spawned by a given condor_schedd daemon, for all job universes except grid, scheduler, and local universe. Limiting the number of running scheduler and local universe jobs can be done using START_LOCAL_UNIVERSE and START_SCHEDULER_UNIVERSE. The actual number of allowed condor_shadow daemons may be reduced, if the amount of memory defined by RESERVED_SWAP limits the number of condor_shadow daemons. A value for MAX_JOBS_RUNNING that is less than or equal to 0 prevents any new job from starting. Changing this setting to be below the current number of jobs that are running will cause running jobs to be aborted until the number running is within the limit.

Like all integer configuration variables, MAX_JOBS_RUNNING may be a ClassAd expression that evaluates to an integer, and which refers to constants either directly or via macro substitution. The default value is an expression that depends on the total amount of memory and the operating system. The default expression requires 1 MByte of RAM per running job on the access point. In some environments and configurations, this is overly generous and can be cut by as much as 50%. On Windows platforms, the number of running jobs is capped at 2000. A 64-bit version of Windows is recommended in order to raise the value above the default. Under Unix, the maximum default is now 10,000. To scale higher, we recommend that the system ephemeral port range is extended such that there are at least 2.1 ports per running job.

Here are example configurations:

## Example 1:
MAX_JOBS_RUNNING = 10000

## Example 2:
## This is more complicated, but it produces the same limit as the default.
## First define some expressions to use in our calculation.
## Assume we can use up to 80% of memory and estimate shadow private data
## size of 800k.
MAX_SHADOWS_MEM = ceiling($(DETECTED_MEMORY)*0.8*1024/800)
## Assume we can use ~21,000 ephemeral ports (avg ~2.1 per shadow).
## Under Linux, the range is set in /proc/sys/net/ipv4/ip_local_port_range.
MAX_SHADOWS_PORTS = 10000
## Under windows, things are much less scalable, currently.
## Note that this can probably be safely increased a bit under 64-bit windows.
MAX_SHADOWS_OPSYS = ifThenElse(regexp("WIN.*","$(OPSYS)"),2000,100000)
## Now build up the expression for MAX_JOBS_RUNNING.  This is complicated
## due to lack of a min() function.
MAX_JOBS_RUNNING = $(MAX_SHADOWS_MEM)
MAX_JOBS_RUNNING = \
  ifThenElse( $(MAX_SHADOWS_PORTS) < $(MAX_JOBS_RUNNING), \
              $(MAX_SHADOWS_PORTS), \
              $(MAX_JOBS_RUNNING) )
MAX_JOBS_RUNNING = \
  ifThenElse( $(MAX_SHADOWS_OPSYS) < $(MAX_JOBS_RUNNING), \
              $(MAX_SHADOWS_OPSYS), \
              $(MAX_JOBS_RUNNING) )

MAX_JOBS_SUBMITTED¶

This integer value limits the number of jobs permitted in a condor_schedd daemon’s queue. Submission of a new cluster of jobs fails, if the total number of jobs would exceed this limit. The default value for this variable is the largest positive integer value.

MAX_JOBS_PER_OWNER¶

This integer value limits the number of jobs any given owner (user) is permitted to have within a condor_schedd daemon’s queue. A job submission fails if it would cause this limit on the number of jobs to be exceeded. The default value is 100000.

This configuration variable may be most useful in conjunction with MAX_JOBS_SUBMITTED, to ensure that no one user can dominate the queue.

ALLOW_SUBMIT_FROM_KNOWN_USERS_ONLY¶

This boolean value determines if a User record will be created automatically when an unknown user submits a job. When true, only daemons or users that have a User record in the condor_schedd can submit jobs. When false, a User record will be added during job submission for users that have never submitted a job before. The default value is false which is consistent with the behavior of the condor_schedd before User records were added.

MAX_RUNNING_SCHEDULER_JOBS_PER_OWNER¶

This integer value limits the number of scheduler universe jobs that any given owner (user) can have running at one time. This limit will affect the number of running Dagman jobs, but not the number of nodes within a DAG. The default value is 200

MAX_JOBS_PER_SUBMISSION¶

This integer value limits the number of jobs any single submission is permitted to add to a condor_schedd daemon’s queue. The whole submission fails if the number of jobs would exceed this limit. The default value is 20000.

This configuration variable may be useful for catching user error, and for protecting a busy condor_schedd daemon from the excessively lengthy interruption required to accept a very large number of jobs at one time.

MAX_SHADOW_EXCEPTIONS¶

This macro controls the maximum number of times that condor_shadow processes can have a fatal error (exception) before the condor_schedd will relinquish the match associated with the dying shadow. Defaults to 2.

MAX_PENDING_STARTD_CONTACTS¶

An integer value that limits the number of simultaneous connection attempts by the condor_schedd when it is requesting claims from one or more condor_startd daemons. The intention is to protect the condor_schedd from being overloaded by authentication operations. The default value is 0. The special value 0 indicates no limit.

CURB_MATCHMAKING¶

A ClassAd expression evaluated by the condor_schedd in the context of the condor_schedd daemon’s own ClassAd. While this expression evaluates to True, the condor_schedd will refrain from requesting more resources from a condor_negotiator. Defaults to RecentDaemonCoreDutyCycle > 0.98.

MAX_CONCURRENT_DOWNLOADS¶

This specifies the maximum number of simultaneous transfers of output files from execute machines to the access point. The limit applies to all jobs submitted from the same condor_schedd. The default is 100. A setting of 0 means unlimited transfers. This limit currently does not apply to grid universe jobs, and it also does not apply to streaming output files. When the limit is reached, additional transfers will queue up and wait before proceeding.

MAX_CONCURRENT_UPLOADS¶

This specifies the maximum number of simultaneous transfers of input files from the access point to execute machines. The limit applies to all jobs submitted from the same condor_schedd. The default is 100. A setting of 0 means unlimited transfers. This limit currently does not apply to grid universe jobs. When the limit is reached, additional transfers will queue up and wait before proceeding.

MAX_CONCURRENT_UPLOADS_PER_USER¶

This specifies the maximum number of simultaneous transfers per user of input files from the access point to execute machines. The limit applies to all jobs submitted by a user from the same condor_schedd. The default is $(MAX_CONCURRENT_UPLOADS)/5. A setting of 0 means unlimited transfers. This limit currently does not apply to grid universe jobs. When the limit is reached, the schedd will stop requesting new matches for that user from the condor_negotiator

BYTES_REQUIRED_TO_QUEUE_FOR_TRANSFER¶

This specifies the minimum size in bytes of a job’s file transfer sandbox that is required before the job needs to enter the transfer queue. Job file transfers with a sandbox size smaller than this threshold will bypass the transfer queue and proceed immediately, regardless of the limits set by MAX_CONCURRENT_UPLOADS and MAX_CONCURRENT_DOWNLOADS. The default value is 100000000 (100 million bytes).

FILE_TRANSFER_DISK_LOAD_THROTTLE¶

This configures throttling of file transfers based on the disk load generated by file transfers. The maximum number of concurrent file transfers is specified by MAX_CONCURRENT_UPLOADS and MAX_CONCURRENT_DOWNLOADS. Throttling will dynamically reduce the level of concurrency further to attempt to prevent disk load from exceeding the specified level. Disk load is computed as the average number of file transfer processes conducting read/write operations at the same time. The throttle may be specified as a single floating point number or as a range. Syntax for the range is the smaller number followed by 1 or more spaces or tabs, the string "to", 1 or more spaces or tabs, and then the larger number. Example:

FILE_TRANSFER_DISK_LOAD_THROTTLE = 5 to 6.5

If only a single number is provided, this serves as the upper limit, and the lower limit is set to 90% of the upper limit. When the disk load is above the upper limit, no new transfers will be started. When between the lower and upper limits, new transfers will only be started to replace ones that finish. The default value is 2.0.

FILE_TRANSFER_DISK_LOAD_THROTTLE_WAIT_BETWEEN_INCREMENTS¶

This rarely configured variable sets the waiting period between increments to the concurrency level set by FILE_TRANSFER_DISK_LOAD_THROTTLE. The default is 1 minute. A value that is too short risks starting too many transfers before their effect on the disk load becomes apparent.

FILE_TRANSFER_DISK_LOAD_THROTTLE_SHORT_HORIZON¶

This rarely configured variable specifies the string name of the short monitoring time span to use for throttling. The named time span must exist in TRANSFER_IO_REPORT_TIMESPANS. The default is 1m, which is 1 minute.

FILE_TRANSFER_DISK_LOAD_THROTTLE_LONG_HORIZON¶

This rarely configured variable specifies the string name of the long monitoring time span to use for throttling. The named time span must exist in TRANSFER_IO_REPORT_TIMESPANS. The default is 5m, which is 5 minutes.

TRANSFER_QUEUE_USER_EXPR¶

This rarely configured expression specifies the user name to be used for scheduling purposes in the file transfer queue. The scheduler attempts to give equal weight to each user when there are multiple jobs waiting to transfer files within the limits set by MAX_CONCURRENT_UPLOADS and/or MAX_CONCURRENT_DOWNLOADS. When choosing a new job to allow to transfer, the first job belonging to the transfer queue user who has the least number of active transfers will be selected. In case of a tie, the user who has least recently been given an opportunity to start a transfer will be selected. By default, a transfer queue user is identified as the job owner. A different user name may be specified by configuring TRANSFER_QUEUE_USER_EXPR to a string expression that is evaluated in the context of the job ad. For example, if this expression were set to a name that is the same for all jobs, file transfers would be scheduled in first-in-first-out order rather than equal share order. Note that the string produced by this expression is used as a prefix in the ClassAd attributes for per-user file transfer I/O statistics that are published in the condor_schedd ClassAd.

MAX_TRANSFER_INPUT_MB¶

This integer expression specifies the maximum allowed total size in MiB of the input files that are transferred for a job. This expression does not apply to grid universe, or files transferred via file transfer plug-ins. The expression may refer to attributes of the job. The special value -1 indicates no limit. The default value is -1. The job may override the system setting by specifying its own limit using the MaxTransferInputMB attribute. If the observed size of all input files at submit time is larger than the limit, the job will be immediately placed on hold with a HoldReasonCode value of 32. If the job passes this initial test, but the size of the input files increases or the limit decreases so that the limit is violated, the job will be placed on hold at the time when the file transfer is attempted.

MAX_TRANSFER_OUTPUT_MB¶

This integer expression specifies the maximum allowed total size in MiB of the output files that are transferred for a job. This expression does not apply to grid universe, or files transferred via file transfer plug-ins. The expression may refer to attributes of the job. The special value -1 indicates no limit. The default value is -1. The job may override the system setting by specifying its own limit using the MaxTransferOutputMB attribute. If the total size of the job’s output files to be transferred is larger than the limit, the job will be placed on hold with a HoldReasonCode value of 33. The output will be transferred up to the point when the limit is hit, so some files may be fully transferred, some partially, and some not at all.

MAX_TRANSFER_QUEUE_AGE¶

The number of seconds after which an aged and queued transfer may be dequeued from the transfer queue, as it is presumably hung. Defaults to 7200 seconds, which is 120 minutes.

TRANSFER_IO_REPORT_INTERVAL¶

The sampling interval in seconds for collecting I/O statistics for file transfer. The default is 10 seconds. To provide sufficient resolution, the sampling interval should be small compared to the smallest time span that is configured in TRANSFER_IO_REPORT_TIMESPANS. The shorter the sampling interval, the more overhead of data collection, which may slow down the condor_schedd. See Scheduler ClassAd Attributes for a description of the published attributes.

TRANSFER_IO_REPORT_TIMESPANS¶

A string that specifies a list of time spans over which I/O statistics are reported, using exponential moving averages (like the 1m, 5m, and 15m load averages in Unix). Each entry in the list consists of a label followed by a colon followed by the number of seconds over which the named time span should extend. The default is 1m:60 5m:300 1h:3600 1d:86400. To provide sufficient resolution, the smallest reported time span should be large compared to the sampling interval, which is configured by TRANSFER_IO_REPORT_INTERVAL. See Scheduler ClassAd Attributes for a description of the published attributes.

SCHEDD_QUERY_WORKERS¶

This specifies the maximum number of concurrent sub-processes that the condor_schedd will spawn to handle queries. The setting is ignored in Windows. In Unix, the default is 8. If the limit is reached, the next query will be handled in the condor_schedd ‘s main process.

CONDOR_Q_USE_V3_PROTOCOL¶

A boolean value that, when True, causes the condor_schedd to use an algorithm that responds to condor_q requests by not forking itself to handle each request. It instead handles the requests in a non-blocking way. The default value is True.

CONDOR_Q_DASH_BATCH_IS_DEFAULT¶

A boolean value that, when True, causes condor_q to print the -batch output unless the -nobatch option is used or the other arguments to condor_q are incompatible with batch mode. For instance -long is incompatible with -batch. The default value is True.

CONDOR_Q_ONLY_MY_JOBS¶

A boolean value that, when True, causes condor_q to request that only the current user’s jobs be queried unless the current user is a queue superuser. It also causes the condor_schedd to honor that request. The default value is True. A value of False in either condor_q or the condor_schedd will result in the old behavior of querying all jobs.

CONDOR_Q_SHOW_OLD_SUMMARY¶

A boolean value that, when True, causes condor_q to show the old single line summary totals. When False condor_q will show the new multi-line summary totals.

SCHEDD_MIN_INTERVAL¶

This macro determines the minimum interval for both how often the condor_schedd sends a ClassAd update to the condor_collector and how often the condor_schedd daemon evaluates jobs. It is defined in terms of seconds and defaults to 5 seconds.

SCHEDD_INTERVAL¶

This macro determines the maximum interval for both how often the condor_schedd sends a ClassAd update to the condor_collector and how often the condor_schedd daemon evaluates jobs. It is defined in terms of seconds and defaults to 300 (every 5 minutes).

SCHEDD_HISTORY_RECORD_INTERVAL¶

An integer value representing the maximum interval between writing the Schedd’s ClassAd to the SCHEDD_DAEMON_HISTORY file. This is defined in terms of seconds and defaults to 900 (every 15 minutes).

ABSENT_SUBMITTER_LIFETIME¶

This macro determines the maximum time that the condor_schedd will remember a submitter after the last job for that submitter leaves the queue. It is defined in terms of seconds and defaults to 1 week.

ABSENT_SUBMITTER_UPDATE_RATE¶

This macro can be used to set the maximum rate at which the condor_schedd sends updates to the condor_collector for submitters that have no jobs in the queue. It is defined in terms of seconds and defaults to 300 (every 5 minutes).

WINDOWED_STAT_WIDTH¶

The number of seconds that forms a time window within which performance statistics of the condor_schedd daemon are calculated. Defaults to 300 seconds.

SCHEDD_INTERVAL_TIMESLICE¶

The bookkeeping done by the condor_schedd takes more time when there are large numbers of jobs in the job queue. However, when it is not too expensive to do this bookkeeping, it is best to keep the collector up to date with the latest state of the job queue. Therefore, this macro is used to adjust the bookkeeping interval so that it is done more frequently when the cost of doing so is relatively small, and less frequently when the cost is high. The default is 0.05, which means the schedd will adapt its bookkeeping interval to consume no more than 5% of the total time available to the schedd. The lower bound is configured by SCHEDD_MIN_INTERVAL (default 5 seconds), and the upper bound is configured by SCHEDD_INTERVAL (default 300 seconds).

JOB_START_COUNT¶

This macro works together with the JOB_START_DELAY macro to throttle job starts. The default and minimum values for this integer configuration variable are both 1.

JOB_START_DELAY¶

This integer-valued macro works together with the JOB_START_COUNT macro to throttle job starts. The condor_schedd daemon starts $(JOB_START_COUNT) jobs at a time, then delays for $(JOB_START_DELAY) seconds before starting the next set of jobs. This delay prevents a sudden, large load on resources required by the jobs during their start up phase. The resulting job start rate averages as fast as ($(JOB_START_COUNT)/$(JOB_START_DELAY)) jobs/second. This setting is defined in terms of seconds and defaults to 0, which means jobs will be started as fast as possible. If you wish to throttle the rate of specific types of jobs, you can use the job attribute NextJobStartDelay.

MAX_NEXT_JOB_START_DELAY¶

An integer number of seconds representing the maximum allowed value of the job ClassAd attribute NextJobStartDelay. It defaults to 600, which is 10 minutes.

JOB_STOP_COUNT¶

An integer value representing the number of jobs operated on at one time by the condor_schedd daemon, when throttling the rate at which jobs are stopped via condor_rm, condor_hold, or condor_vacate_job. The default and minimum values are both 1. This variable is ignored for grid and scheduler universe jobs.

JOB_STOP_DELAY¶

An integer value representing the number of seconds delay utilized by the condor_schedd daemon, when throttling the rate at which jobs are stopped via condor_rm, condor_hold, or condor_vacate_job. The condor_schedd daemon stops $(JOB_STOP_COUNT) jobs at a time, then delays for $(JOB_STOP_DELAY) seconds before stopping the next set of jobs. This delay prevents a sudden, large load on resources required by the jobs when they are terminating. The resulting job stop rate averages as fast as JOB_STOP_COUNT/JOB_STOP_DELAY jobs per second. This configuration variable is also used during the graceful shutdown of the condor_schedd daemon. During graceful shutdown, this macro determines the wait time in between requesting each condor_shadow daemon to gracefully shut down. The default value is 0, which means jobs will be stopped as fast as possible. This variable is ignored for grid and scheduler universe jobs.

JOB_IS_FINISHED_COUNT¶

An integer value representing the number of jobs that the condor_schedd will let permanently leave the job queue each time that it examines the jobs that are ready to do so. The default value is 1.

JOB_IS_FINISHED_INTERVAL¶

The condor_schedd maintains a list of jobs that are ready to permanently leave the job queue, for example, when they have completed or been removed. This integer-valued macro specifies a delay in seconds between instances of taking jobs permanently out of the queue. The default value is 0, which tells the condor_schedd to not impose any delay.

ALIVE_INTERVAL¶

An initial value for an integer number of seconds defining how often the condor_schedd sends a UDP keep alive message to any condor_startd it has claimed. When the condor_schedd claims a condor_startd, the condor_schedd tells the condor_startd how often it is going to send these messages. The utilized interval for sending keep alive messages is the smallest of the two values ALIVE_INTERVAL and the expression JobLeaseDuration/3, formed with the job ClassAd attribute JobLeaseDuration. The value of the interval is further constrained by the floor value of 10 seconds. If the condor_startd does not receive any of these keep alive messages during a certain period of time (defined via MAX_CLAIM_ALIVES_MISSED) the condor_startd releases the claim, and the condor_schedd no longer pays for the resource (in terms of user priority in the system). The macro is defined in terms of seconds and defaults to 300, which is 5 minutes.

REQUEST_CLAIM_TIMEOUT¶

This macro sets the time (in seconds) that the condor_schedd will wait for a claim to be granted by the condor_startd. The default is 30 minutes. This is only likely to matter if NEGOTIATOR_CONSIDER_EARLY_PREEMPTION is True, and the condor_startd has an existing claim, and it takes a long time for the existing claim to be preempted due to MaxJobRetirementTime. Once a request times out, the condor_schedd will simply begin the process of finding a machine for the job all over again.

Normally, it is not a good idea to set this to be very small, where a small value is a few minutes. Doing so can lead to failure to preempt, because the preempting job will spend a significant fraction of its time waiting to be re-matched. During that time, it would miss out on any opportunity to run if the job it is trying to preempt gets out of the way.

SHADOW_SIZE_ESTIMATE¶

The estimated private virtual memory size of each condor_shadow process in KiB. This value is only used if RESERVED_SWAP is non-zero. The default value is 800.

SHADOW_RENICE_INCREMENT¶

When the condor_schedd spawns a new condor_shadow, it can do so with a nice-level. A nice-level is a Unix mechanism that allows users to assign their own processes a lower priority so that the processes run with less priority than other tasks on the machine. The value can be any integer between 0 and 19, with a value of 19 being the lowest priority. It defaults to 0.

SCHED_UNIV_RENICE_INCREMENT¶

Analogous to JOB_RENICE_INCREMENT and SHADOW_RENICE_INCREMENT, scheduler universe jobs can be given a nice-level. The value can be any integer between 0 and 19, with a value of 19 being the lowest priority. It defaults to 0.

QUEUE_CLEAN_INTERVAL¶

The condor_schedd maintains the job queue on a given machine. It does so in a persistent way such that if the condor_schedd crashes, it can recover a valid state of the job queue. The mechanism it uses is a transaction-based log file (the job_queue.log file, not the SchedLog file). This file contains an initial state of the job queue, and a series of transactions that were performed on the queue (such as new jobs submitted or jobs completing). Periodically, the condor_schedd will go through this log, truncate all the transactions and create a new file containing only the new initial state of the log. This is a somewhat expensive operation, but it speeds up when the condor_schedd restarts since there are fewer transactions it has to play to figure out what state the job queue is really in. This macro determines how often the condor_schedd should rework this queue to clean it up. It is defined in terms of seconds and defaults to 28800 (every 8 hours).

WALL_CLOCK_CKPT_INTERVAL¶

The job queue contains a counter for each job’s “wall clock” run time, i.e., how long each job has executed so far. This counter is displayed by condor_q. The counter is updated when the job is evicted or when the job completes. When the condor_schedd crashes, the run time for jobs that are currently running will not be added to the counter (and so, the run time counter may become smaller than the CPU time counter). The condor_schedd saves run time “checkpoints” periodically for running jobs so if the condor_schedd crashes, only run time since the last checkpoint is lost. This macro controls how often the condor_schedd saves run time checkpoints. It is defined in terms of seconds and defaults to 3600 (one hour). A value of 0 will disable wall clock checkpoints.

QUEUE_ALL_USERS_TRUSTED¶

Defaults to False. If set to True, then unauthenticated users are allowed to write to the queue, and also we always trust whatever the Owner value is set to be by the client in the job ad. This was added so users can continue to use the SOAP web-services interface over HTTP (without authenticating) to submit jobs in a secure, controlled environment - for instance, in a portal setting.

QUEUE_SUPER_USERS¶

A comma and/or space separated list of user names on a given machine that are given super-user access to the job queue, meaning that they can modify or delete the job ClassAds of other users. These should be of form USER@DOMAIN; if the domain is not present in the username, HTCondor will assume the default UID_DOMAIN. When not on this list, users can only modify or delete their own ClassAds from the job queue. Whatever user name corresponds with the UID that HTCondor is running as - usually user condor - will automatically be included in this list, because that is needed for HTCondor’s proper functioning. See User Accounts in HTCondor on Unix Platforms on UIDs in HTCondor for more details on this. By default, the Unix user root and the Windows user administrator are given the ability to remove other users’ jobs, in addition to user condor. In addition to a single user, Unix user groups may be specified by using a special syntax defined for this configuration variable; the syntax is the percent character (%) followed by the user group name. All members of the user group are given super-user access.

QUEUE_SUPER_USER_MAY_IMPERSONATE¶

A regular expression that matches the operating system user names (that is, job owners in the form USER) that the queue super user may impersonate when managing jobs. This allows the admin to limit the operating system users a super user can launch jobs as. When not set, the default behavior is to allow impersonation of any user who has had a job in the queue during the life of the condor_schedd. For proper functioning of the condor_shadow, the condor_gridmanager, and the condor_job_router, this expression, if set, must match the owner names of all jobs that these daemons will manage. Note that a regular expression that matches only part of the user name is still considered a match. If acceptance of partial matches is not desired, the regular expression should begin with ^ and end with $.

SYSTEM_JOB_MACHINE_ATTRS¶

This macro specifies a space and/or comma separated list of machine attributes that should be recorded in the job ClassAd. The default attributes are Cpus and SlotWeight. When there are multiple run attempts, history of machine attributes from previous run attempts may be kept. The number of run attempts to store is specified by the configuration variable SYSTEM_JOB_MACHINE_ATTRS_HISTORY_LENGTH. A machine attribute named X will be inserted into the job ClassAd as an attribute named MachineAttrX0. The previous value of this attribute will be named MachineAttrX1, the previous to that will be named MachineAttrX2, and so on, up to the specified history length. A history of length 1 means that only MachineAttrX0 will be recorded. Additional attributes to record may be specified on a per-job basis by using the job_machine_attrs submit file command. The value recorded in the job ClassAd is the evaluation of the machine attribute in the context of the job ClassAd when the condor_schedd daemon initiates the start up of the job. If the evaluation results in an Undefined or Error result, the value recorded in the job ClassAd will be Undefined or Error respectively.

SYSTEM_JOB_MACHINE_ATTRS_HISTORY_LENGTH¶

The integer number of run attempts to store in the job ClassAd when recording the values of machine attributes listed in SYSTEM_JOB_MACHINE_ATTRS. The default is 1. The history length may also be extended on a per-job basis by using the submit file command job_machine_attrs_history_length The larger of the system and per-job history lengths will be used. A history length of 0 disables recording of machine attributes.

SCHEDD_LOCK¶

This macro specifies what lock file should be used for access to the SchedLog file. It must be a separate file from the SchedLog, since the SchedLog may be rotated and synchronization across log file rotations is desired. This macro is defined relative to the $(LOCK) macro.

SCHEDD_NAME¶

Used to give an alternative value to the Name attribute in the condor_schedd ‘s ClassAd.

See the description of MASTER_NAME for defaults and composition of valid HTCondor daemon names.

SCHEDD_ATTRS¶

This macro is described in <SUBSYS>_ATTRS.

SCHEDD_DEBUG¶

This macro (and other settings related to debug logging in the condor_schedd) is described in <SUBSYS>_DEBUG.

SCHEDD_ADDRESS_FILE¶

This macro is described in <SUBSYS>_ADDRESS_FILE.

SCHEDD_EXECUTE¶

A directory to use as a temporary sandbox for local universe jobs. Defaults to $(SPOOL)/execute.

FLOCK_TO¶

This defines a comma separate list of central manager machines this schedd should flock to. The default value is empty. For flocking to work, each of these central managers should also define FLOCK_FROM with the name of this schedd in that list. This parameter explicitly sets FLOCK_NEGOTIATOR_HOSTS and FLOCK_COLLECTOR_HOSTS so that you usually just need to set FLOCK_TO and no others to make flocking work.

FLOCK_NEGOTIATOR_HOSTS¶

Defines a comma and/or space separated list of condor_negotiator host names for pools in which the condor_schedd should attempt to run jobs. If not set, the condor_schedd will query the condor_collector daemons for the addresses of the condor_negotiator daemons. If set, then the condor_negotiator daemons must be specified in order, corresponding to the list set by FLOCK_COLLECTOR_HOSTS. In the typical case, where each pool has the condor_collector and condor_negotiator running on the same machine, $(FLOCK_NEGOTIATOR_HOSTS) should have the same definition as $(FLOCK_COLLECTOR_HOSTS). This configuration value is also typically used as a macro for adding the condor_negotiator to the relevant authorization lists.

FLOCK_COLLECTOR_HOSTS¶

This macro defines a list of collector host names (not including the local $(COLLECTOR_HOST) machine) for pools in which the condor_schedd should attempt to run jobs. Hosts in the list should be in order of preference. The condor_schedd will only send a request to a central manager in the list if the local pool and pools earlier in the list are not satisfying all the job requests. ALLOW_NEGOTIATOR_SCHEDD must also be configured to allow negotiators from all of the pools to contact the condor_schedd at the NEGOTIATOR authorization level. Similarly, the central managers of the remote pools must be configured to allow this condor_schedd to join the pool (this requires ADVERTISE_SCHEDD authorization level, which defaults to WRITE).

FLOCK_INCREMENT¶

This integer value controls how quickly flocking to various pools will occur. It defaults to 1, meaning that pools will be considered for flocking slowly. The first condor_collector daemon listed in FLOCK_COLLECTOR_HOSTS will be considered for flocking, and then the second, and so on. A larger value increases the number of condor_collector daemons to be considered for flocking. For example, a value of 2 will partition the FLOCK_COLLECTOR_HOSTS into sets of 2 condor_collector daemons, and each set will be considered for flocking.

MIN_FLOCK_LEVEL¶

This integer value specifies a number of remote pools that the condor_schedd should always flock to. It defaults to 0, meaning that none of the pools listed in FLOCK_COLLECTOR_HOSTS will be considered for flocking when there are no idle jobs in need of match-making. Setting a larger value N means the condor_schedd will always flock to (i.e. look for matches in) the first N pools listed in FLOCK_COLLECTOR_HOSTS.

NEGOTIATE_ALL_JOBS_IN_CLUSTER¶

If this macro is set to False (the default), when the condor_schedd fails to start an idle job, it will not try to start any other idle jobs in the same cluster during that negotiation cycle. This makes negotiation much more efficient for large job clusters. However, in some cases other jobs in the cluster can be started even though an earlier job can’t. For example, the jobs’ requirements may differ, because of different disk space, memory, or operating system requirements. Or, machines may be willing to run only some jobs in the cluster, because their requirements reference the jobs’ virtual memory size or other attribute. Setting this macro to True will force the condor_schedd to try to start all idle jobs in each negotiation cycle. This will make negotiation cycles last longer, but it will ensure that all jobs that can be started will be started.

PERIODIC_EXPR_INTERVAL¶

This macro determines the minimum period, in seconds, between evaluation of periodic job control expressions, such as periodic_hold, periodic_release, and periodic_remove, given by the user in an HTCondor submit file. By default, this value is 60 seconds. A value of 0 prevents the condor_schedd from performing the periodic evaluations.

MAX_PERIODIC_EXPR_INTERVAL¶

This macro determines the maximum period, in seconds, between evaluation of periodic job control expressions, such as periodic_hold, periodic_release, and periodic_remove, given by the user in an HTCondor submit file. By default, this value is 1200 seconds. If HTCondor is behind on processing events, the actual period between evaluations may be higher than specified.

PERIODIC_EXPR_TIMESLICE¶

This macro is used to adapt the frequency with which the condor_schedd evaluates periodic job control expressions. When the job queue is very large, the cost of evaluating all of the ClassAds is high, so in order for the condor_schedd to continue to perform well, it makes sense to evaluate these expressions less frequently. The default time slice is 0.01, so the condor_schedd will set the interval between evaluations so that it spends only 1% of its time in this activity. The lower bound for the interval is configured by PERIODIC_EXPR_INTERVAL (default 60 seconds) and the upper bound is configured with MAX_PERIODIC_EXPR_INTERVAL (default 1200 seconds).

SYSTEM_PERIODIC_HOLD_NAMES¶

A comma and/or space separated list of unique names, where each is used in the formation of a configuration variable name that will contain an expression that will be periodically evaluated for each job that is not in the HELD, COMPLETED, or REMOVED state. Each name in the list will be used in the name of configuration variable SYSTEM_PERIODIC_HOLD_<Name>. The named expressions are evaluated in the order in which names appear in this list. Names are not case-sensitive. After all of the named expressions are evaluated, the nameless SYSTEM_PERIODIC_HOLD expression will be evaluated. If any of these expression evaluates to True the job will be held. See also SYSTEM_PERIODIC_HOLD There is no default value.

SYSTEM_PERIODIC_HOLD¶

SYSTEM_PERIODIC_HOLD_<Name>¶

This expression behaves identically to the job expression periodic_hold, but it is evaluated for every job in the queue. It defaults to False. When True, it causes the job to stop running and go on hold. Here is an example that puts jobs on hold if they have been restarted too many times, have an unreasonably large virtual memory ImageSize, or have unreasonably large disk usage for an invented environment.

if version > 9.5
   # use hold names if the version supports it
   SYSTEM_PERIODIC_HOLD_NAMES = Mem Disk
   SYSTEM_PERIODIC_HOLD_Mem = ImageSize > 3000000
   SYSTEM_PERIODIC_HOLD_Disk = JobStatus == 2 && DiskUsage > 10000000
   SYSTEM_PERIODIC_HOLD = JobStatus == 1 && JobRunCount > 10
else
   SYSTEM_PERIODIC_HOLD = \
  (JobStatus == 1 || JobStatus == 2) && \
  (JobRunCount > 10 || ImageSize > 3000000 || DiskUsage > 10000000)
endif

SYSTEM_PERIODIC_HOLD_REASON¶

SYSTEM_PERIODIC_HOLD_<Name>_REASON¶

This string expression is evaluated when the job is placed on hold due to SYSTEM_PERIODIC_HOLD or SYSTEM_PERIODIC_HOLD_<Name> evaluating to True. If it evaluates to a non-empty string, this value is used to set the job attribute HoldReason. Otherwise, a default description is used.

SYSTEM_PERIODIC_HOLD_SUBCODE¶

SYSTEM_PERIODIC_HOLD_<Name>_SUBCODE¶

This integer expression is evaluated when the job is placed on hold due to SYSTEM_PERIODIC_HOLD or SYSTEM_PERIODIC_HOLD_<Name> evaluating to True. If it evaluates to a valid integer, this value is used to set the job attribute HoldReasonSubCode. Otherwise, a default of 0 is used. The attribute HoldReasonCode is set to 26, which indicates that the job went on hold due to a system job policy expression.

SYSTEM_PERIODIC_RELEASE_NAMES¶

A comma and/or space separated list of unique names, where each is used in the formation of a configuration variable name that will contain an expression that will be periodically evaluated for each job that is in the HELD state (jobs with a HoldReasonCode value of 1 are ignored). Each name in the list will be used in the name of configuration variable SYSTEM_PERIODIC_RELEASE_<Name>. The named expressions are evaluated in the order in which names appear in this list. Names are not case-sensitive. After all of the named expressions are evaluated, the nameless SYSTEM_PERIODIC_RELEASE expression will be evaluated. If any of these expressions evaluates to True the job will be released. See also SYSTEM_PERIODIC_RELEASE There is no default value.

SYSTEM_PERIODIC_RELEASE¶

SYSTEM_PERIODIC_RELEASE_<Name>¶

This expression behaves identically to a job’s definition of a periodic_release expression in a submit description file, but it is evaluated for every job in the queue. It defaults to False. When True, it causes a Held job to return to the Idle state. Here is an example that releases jobs from hold if they have tried to run less than 20 times, have most recently been on hold for over 20 minutes, and have gone on hold due to Connection timed out when trying to execute the job, because the file system containing the job’s executable is temporarily unavailable.

SYSTEM_PERIODIC_RELEASE = \
  (JobRunCount < 20 && (time() - EnteredCurrentStatus) > 1200 ) &&  \
    (HoldReasonCode == 6 && HoldReasonSubCode == 110)

SYSTEM_PERIODIC_REMOVE_NAMES¶

A comma and/or space separated list of unique names, where each is used in the formation of a configuration variable name that will contain an expression that will be periodically evaluated for each job in the queue. Each name in the list will be used in the name of configuration variable SYSTEM_PERIODIC_REMOVE_<Name>. The named expressions are evaluated in the order in which names appear in this list. Names are not case-sensitive. After all of the named expressions are evaluated, the nameless SYSTEM_PERIODIC_REMOVE expression will be evaluated. If any of these expressions evaluates to True the job will be removed from the queue. See also SYSTEM_PERIODIC_REMOVE There is no default value.

SYSTEM_PERIODIC_REMOVE¶

SYSTEM_PERIODIC_REMOVE_<Name>¶

This expression behaves identically to the job expression periodic_remove, but it is evaluated for every job in the queue. As it is in the configuration file, it is easy for an administrator to set a remove policy that applies to all jobs. It defaults to False. When True, it causes the job to be removed from the queue. Here is an example that removes jobs which have been on hold for 30 days:

SYSTEM_PERIODIC_REMOVE = \
  (JobStatus == 5 && time() - EnteredCurrentStatus > 3600*24*30)

SYSTEM_PERIODIC_VACATE_NAMES¶

A comma and/or space separated list of unique names, where each is used in the formation of a configuration variable name that will contain an expression that will be periodically evaluated for each running job in the queue. Each name in the list will be used in the name of configuration variable SYSTEM_PERIODIC_VACATE_<Name>. The named expressions are evaluated in the order in which names appear in this list. Names are case-insensitive. After all of the named expressions are evaluated, the nameless SYSTEM_PERIODIC_VACATE expression will be evaluated. If any of these expressions evaluates to True the job will be evicted from the machine it is running on, and returned to the queue as Idle. See also SYSTEM_PERIODIC_VACATE There is no default value.

SYSTEM_PERIODIC_VACATE¶

SYSTEM_PERIODIC_VACATE_<Name>¶

This expression behaves identically to the job expression periodic_vacate, but it is evaluated for every running job in the queue. As it is in the configuration file, it is easy for an administrator to set a vacate policy that applies to all jobs. It defaults to False. When True, it causes the job to be evicted from the machine it is running on.

SYSTEM_ON_VACATE_COOL_DOWN¶

This expression is evaluated whenever an execution attempt for a job is interrupted (i.e. the job does not exit of its own accord). If it evaluates to a positive integer, then the job is put into a cool-down state for that number of seconds. During this time, the job will not be run again.

SCHEDULER_UNIVERSE_COOL_DOWN_DURATION¶

An integer representing the time in seconds that a scheduler universe job, such as condor_dagman, will be in the cool down state when it exits with a non-zero exit code. The default value is 300 seconds, i.e. 5 minutes.

SCHEDD_ASSUME_NEGOTIATOR_GONE¶

This macro determines the period, in seconds, that the condor_schedd will wait for the condor_negotiator to initiate a negotiation cycle before the schedd will simply try to claim any local condor_startd. This allows for a machine that is acting as both a submit and execute node to run jobs locally if it cannot communicate with the central manager. The default value, if not specified, is 2,000,000 seconds (effectively never). If this feature is desired, we recommend setting it to some small multiple of the negotiation cycle, say, 1200 seconds, or 20 minutes.

SYSTEM_MAX_RELEASES¶

An integer which defaults to -1 (unlimited). When set to a positive integer, no job will be allowed to be released more than this number of times from the held state. Does not apply to QUEUE_SUPER_USERS.

GRACEFULLY_REMOVE_JOBS¶

A boolean value defaulting to True. If True, jobs will be given a chance to shut down cleanly when removed. In the vanilla universe, this means that the job will be sent the signal set in its SoftKillSig attribute, or SIGTERM if undefined; if the job hasn’t exited after its max vacate time, it will be hard-killed (sent SIGKILL). Signals are different on Windows, and other details differ between universes.

The submit command want_graceful_removal overrides this configuration variable.

See MachineMaxVacateTime for details on how HTCondor computes the job’s max vacate time.

SCHEDD_ROUND_ATTR_<xxxx>¶

This is used to round off attributes in the job ClassAd so that similar jobs may be grouped together for negotiation purposes. There are two cases. One is that a percentage such as 25% is specified. In this case, the value of the attribute named <xxxx>\ in the job ClassAd will be rounded up to the next multiple of the specified percentage of the values order of magnitude. For example, a setting of 25% will cause a value near 100 to be rounded up to the next multiple of 25 and a value near 1000 will be rounded up to the next multiple of 250. The other case is that an integer, such as 4, is specified instead of a percentage. In this case, the job attribute is rounded up to the specified number of decimal places. Replace <xxxx> with the name of the attribute to round, and set this macro equal to the number of decimal places to round up. For example, to round the value of job ClassAd attribute foo up to the nearest 100, set

SCHEDD_ROUND_ATTR_foo = 2

When the schedd rounds up an attribute value, it will save the raw (un-rounded) actual value in an attribute with the same name appended with “_RAW”. So in the above example, the raw value will be stored in attribute foo_RAW in the job ClassAd. The following are set by default:

SCHEDD_ROUND_ATTR_ResidentSetSize = 25%
SCHEDD_ROUND_ATTR_ProportionalSetSizeKb = 25%
SCHEDD_ROUND_ATTR_ImageSize = 25%
SCHEDD_ROUND_ATTR_ExecutableSize = 25%
SCHEDD_ROUND_ATTR_DiskUsage = 25%
SCHEDD_ROUND_ATTR_NumCkpts = 4

Thus, an ImageSize near 100MB will be rounded up to the next multiple of 25MB. If your batch slots have less memory or disk than the rounded values, it may be necessary to reduce the amount of rounding, because the job requirements will not be met.

SCHEDD_BACKUP_SPOOL¶

A boolean value that, when True, causes the condor_schedd to make a backup of the job queue as it starts. When True, the condor_schedd creates a host-specific backup of the current spool file to the spool directory. This backup file will be overwritten each time the condor_schedd starts. Defaults to False.

SCHEDD_PREEMPTION_REQUIREMENTS¶

This boolean expression is utilized only for machines allocated by a dedicated scheduler. When True, a machine becomes a candidate for job preemption. This configuration variable has no default; when not defined, preemption will never be considered.

SCHEDD_PREEMPTION_RANK¶

This floating point value is utilized only for machines allocated by a dedicated scheduler. It is evaluated in context of a job ClassAd, and it represents a machine’s preference for running a job. This configuration variable has no default; when not defined, preemption will never be considered.

ParallelSchedulingGroup¶

For parallel jobs which must be assigned within a group of machines (and not cross group boundaries), this configuration variable is a string which identifies a group of which this machine is a member. Each machine within a group sets this configuration variable with a string that identifies the group.

PER_JOB_HISTORY_DIR¶

If set to a directory writable by the HTCondor user, when a job leaves the condor_schedd ‘s queue, a copy of the job’s ClassAd will be written in that directory. The files are named history, with the job’s cluster and process number appended. For example, job 35.2 will result in a file named history.35.2. HTCondor does not rotate or delete the files, so without an external entity to clean the directory, it can grow very large. This option defaults to being unset. When not set, no files are written.

DEDICATED_SCHEDULER_USE_FIFO¶

When this parameter is set to true (the default), parallel universe jobs will be scheduled in a first-in, first-out manner. When set to false, parallel jobs are scheduled using a best-fit algorithm. Using the best-fit algorithm is not recommended, as it can cause starvation.

DEDICATED_SCHEDULER_WAIT_FOR_SPOOLER¶

A boolean value that when True, causes the dedicated scheduler to schedule parallel universe jobs in a very strict first-in, first-out manner. When the default value of False, parallel jobs that are being remotely submitted to a scheduler and are on hold, waiting for spooled input files to arrive at the scheduler, will not block jobs that arrived later, but whose input files have finished spooling. When True, jobs with larger cluster IDs, but that are in the Idle state will not be scheduled to run until all earlier jobs have finished spooling in their input files and have been scheduled.

SCHEDD_SEND_VACATE_VIA_TCP¶

A boolean value that defaults to True. When True, the condor_schedd daemon sends vacate signals via TCP, instead of the default UDP.

SCHEDD_CLUSTER_INITIAL_VALUE¶

An integer that specifies the initial cluster number value to use within a job id when a job is first submitted. If the job cluster number reaches the value set by SCHEDD_CLUSTER_MAXIMUM_VALUE and wraps, it will be re-set to the value given by this variable. The default value is 1.

SCHEDD_CLUSTER_INCREMENT_VALUE¶

A positive integer that defaults to 1, representing a stride used for the assignment of cluster numbers within a job id. When a job is submitted, the job will be assigned a job id. The cluster number of the job id will be equal to the previous cluster number used plus the value of this variable.

SCHEDD_CLUSTER_MAXIMUM_VALUE¶

An integer that specifies an upper bound on assigned job cluster id values. For value M, the maximum job cluster id assigned to any job will be M - 1. When the maximum id is reached, cluster ids will continue assignment using SCHEDD_CLUSTER_INITIAL_VALUE. The default value of this variable is zero, which represents the behavior of having no maximum cluster id value.

Note that HTCondor does not check for nor take responsibility for duplicate cluster ids for queued jobs. If SCHEDD_CLUSTER_MAXIMUM_VALUE is set to a non-zero value, the system administrator is responsible for ensuring that older jobs do not stay in the queue long enough for cluster ids of new jobs to wrap around and reuse the same id. With a low enough value, it is possible for jobs to be erroneously assigned duplicate cluster ids, which will result in a corrupt job queue.

SCHEDD_JOB_QUEUE_LOG_FLUSH_DELAY¶

An integer which specifies an upper bound in seconds on how long it takes for changes to the job ClassAd to be visible to the HTCondor Job Router. The default is 5 seconds.

ROTATE_HISTORY_DAILY¶

A boolean value that defaults to False. When True, the history file will be rotated daily, in addition to the rotations that occur due to the definition of MAX_HISTORY_LOG that rotate due to size.

ROTATE_HISTORY_MONTHLY¶

A boolean value that defaults to False. When True, the history file will be rotated monthly, in addition to the rotations that occur due to the definition of MAX_HISTORY_LOG that rotate due to size.

SCHEDD_COLLECT_STATS_FOR_<Name>¶

A boolean expression that when True creates a set of condor_schedd ClassAd attributes of statistics collected for a particular set. These attributes are named using the prefix of <Name>. The set includes each entity for which this expression is True. As an example, assume that condor_schedd statistics attributes are to be created for only user Einstein’s jobs. Defining

SCHEDD_COLLECT_STATS_FOR_Einstein = (Owner=="einstein")

causes the creation of the set of statistics attributes with names such as EinsteinJobsCompleted and EinsteinJobsCoredumped.

SCHEDD_COLLECT_STATS_BY_<Name>¶

Defines a string expression. The evaluated string is used in the naming of a set of condor_schedd statistics ClassAd attributes. The naming begins with <Name>, an underscore character, and the evaluated string. Each character not permitted in an attribute name will be converted to the underscore character. For example,

SCHEDD_COLLECT_STATS_BY_Host = splitSlotName(RemoteHost)[1]

a set of statistics attributes will be created and kept. If the string expression were to evaluate to "storm.04.cs.wisc.edu", the names of two of these attributes will be Host_storm_04_cs_wisc_edu_JobsCompleted and Host_storm_04_cs_wisc_edu_JobsCoredumped.

SCHEDD_EXPIRE_STATS_BY_<Name>¶

The number of seconds after which the condor_schedd daemon will stop collecting and discard the statistics for a subset identified by <Name>, if no event has occurred to cause any counter or statistic for the subset to be updated. If this variable is not defined for a particular <Name>, then the default value will be 60*60*24*7, which is one week’s time.

SIGNIFICANT_ATTRIBUTES¶

A comma and/or space separated list of job ClassAd attributes that are to be added to the list of attributes for determining the sets of jobs considered as a unit (an auto cluster) in negotiation, when auto clustering is enabled. When defined, this list replaces the list that the condor_negotiator would define based upon machine ClassAds.

ADD_SIGNIFICANT_ATTRIBUTES¶

A comma and/or space separated list of job ClassAd attributes that will always be added to the list of attributes that the condor_negotiator defines based upon machine ClassAds, for determining the sets of jobs considered as a unit (an auto cluster) in negotiation, when auto clustering is enabled.

REMOVE_SIGNIFICANT_ATTRIBUTES¶

A comma and/or space separated list of job ClassAd attributes that are removed from the list of attributes that the condor_negotiator defines based upon machine ClassAds, for determining the sets of jobs considered as a unit (an auto cluster) in negotiation, when auto clustering is enabled.

SCHEDD_SEND_RESCHEDULE¶

A boolean value which defaults to true. Set to false for schedds like those in the HTCondor-CE that have no negotiator associated with them, in order to reduce spurious error messages in the SchedLog file.

SCHEDD_AUDIT_LOG¶

The path and file name of the condor_schedd log that records user-initiated commands that modify the job queue. If not defined, there will be no condor_schedd audit log.

MAX_SCHEDD_AUDIT_LOG¶

Controls the maximum amount of time that a log will be allowed to grow. When it is time to rotate a log file, it will be saved to a file with an ISO timestamp suffix. The oldest rotated file receives the file name suffix .old. The .old files are overwritten each time the maximum number of rotated files (determined by the value of MAX_NUM_SCHEDD_AUDIT_LOG) is exceeded. A value of 0 specifies that the file may grow without bounds. The following suffixes may be used to qualify the integer:

Sec for seconds Min for minutes Hr for hours Day for days Wk for weeks

MAX_NUM_SCHEDD_AUDIT_LOG¶

The integer that controls the maximum number of rotations that the condor_schedd audit log is allowed to perform, before the oldest one will be rotated away. The default value is 1.

SCHEDD_USE_SLOT_WEIGHT¶

A boolean that defaults to False. When True, the condor_schedd does use configuration variable SLOT_WEIGHT to weight running and idle job counts in the submitter ClassAd.

EXTENDED_SUBMIT_COMMANDS¶

A long form ClassAd that defines extended submit commands and their associated job ad attributes for a specific Schedd. condor_submit will query the destination schedd for this ClassAd and use it to modify the internal table of submit commands before interpreting the submit file.

Each entry in this ClassAd will define a new submit command, the value will indicate the required data type to the submit file parser with the data type given by example from the value according to this list of types

string-list - a quoted string containing a comma. e.g. "a,b". string-list values are converted to canonical form.
filename - a quoted string beginning with the word file. e.g. "filename". filename values are converted to fully qualified file paths using the same rules as other submit filenames.
string - a quoted string that does not match the above special rules. e.g. "string". string values can be provided quoted or unquoted in the submit file. Unquoted values will have leading and trailing whitespace removed.
unsigned-integer - any non-negative integer e.g. 0. unsigned-integer values are evaluated as expressions and submit will fail if the result does not convert to an unsigned integer. A simple integer value will be stored in the job.
integer - any negative integer e.g. -1. integer values are evaluated as expressions and submit will fail if the result does not convert to an integer. A simple integer value will be stored in the job.
boolean - any boolean value e.g. true. boolean values are evaluated as expressions and submit will fail if the result does not convert to true or false.
expression - any expression or floating point number that is not one of the above. e.g. a+b. expression values will be parsed as a classad expression and stored in the job.
error - the literal error will tell submit to generate an error when the command is used. This provides a way for admins to disable existing submit commands.
undefined - the literal undefined will be treated by condor_submit as if that attribute is not in this ad. This is intended to aid composability of this ad across multiple configuration files.

The following example will add four new submit commands and disable the use of the accounting_group_user submit command.

EXTENDED_SUBMIT_COMMANDS @=end
   LongJob = true
   Project = "string"
   FavoriteFruit = "a,b"
   SomeFile = "filename"
   accounting_group_user = error
@end

EXTENDED_SUBMIT_HELPFILE¶

A URL or file path to text describing how the condor_schedd extends the submit schema. Use this to document for users the extended submit commands defined by the configuration variable EXTENDED_SUBMIT_COMMANDS. condor_submit will display this URL or the text of this file when the user uses the -capabilities option.

SUBMIT_TEMPLATE_NAMES¶

A comma and/or space separated list of unique names, where each is used in the formation of a configuration variable name that will contain a set of submit commands. Each name in the list will be used in the name of the configuration variable SUBMIT_TEMPLATE_<Name>. Names are not case-sensitive. There is no default value. Submit templates are used by condor_submit when parsing submit files, so administrators or users can add submit templates to the configuration of condor_submit to customize the schema or to simplify the creation of submit files.

SUBMIT_TEMPLATE_<Name>¶

A single submit template containing one or more submit commands. The template can be invoked with or without arguments. The template can refer to arguments by number using the $(<N>) where <N> is a value from 0 thru 9. $(0) expands to all of the arguments, $(1) to the first argument, $(2) to the second argument, and so on. The argument number can be followed by ? to test if the argument was specified, or by + to expand to that argument and all subsequent arguments. Thus $(0) and $(1+) will expand to the same thing.

For example:

SUBMIT_TEMPLATE_NAMES = $(SUBMIT_TEMPLATE_NAMES) Slurm
SUBMIT_TEMPLATE_Slurm @=tpl
   if ! $(1?)
      error : Template:Slurm requires at least 1 argument - Slurm(project, [queue [, resource_args...])
   endif
   universe = Grid
   grid_resource = batch slurm $(3)
   batch_project = $(1)
   batch_queue = $(2:Default)
@tpl

This could be used in a submit file in this way:

use template : Slurm(Blue Book)

JOB_TRANSFORM_NAMES¶

A comma and/or space separated list of unique names, where each is used in the formation of a configuration variable name that will contain a set of rules governing the transformation of jobs during submission. Each name in the list will be used in the name of configuration variable JOB_TRANSFORM_<Name>. Transforms are applied in the order in which names appear in this list. Names are not case-sensitive. There is no default value.

JOB_TRANSFORM_<Name>¶

A single job transform specified as a set of transform rules. The syntax for these rules is specified in ClassAd Transforms The transform rules are applied to jobs that match the transform’s REQUIREMENTS expression as they are submitted. <Name> corresponds to a name listed in JOB_TRANSFORM_NAMES. Names are not case-sensitive. There is no default value. For jobs submitted as late materialization factories, the factory Cluster ad is transformed at submit time. When job ads are later materialized, attribute values set by the transform will override values set by the job factory for those attributes.

SUBMIT_REQUIREMENT_NAMES¶

A comma and/or space separated list of unique names, where each is used in the formation of a configuration variable name that will represent an expression evaluated to decide whether or not to reject a job submission. Each name in the list will be used in the name of configuration variable SUBMIT_REQUIREMENT_<Name>. There is no default value.

SUBMIT_REQUIREMENT_<Name>¶

A boolean expression evaluated in the context of the condor_schedd daemon ClassAd, which is the SCHEDD. or MY. name space and the job ClassAd, which is the JOB. or TARGET. name space. When False, it causes the condor_schedd to reject the submission of the job or cluster of jobs. <Name> corresponds to a name listed in SUBMIT_REQUIREMENT_NAMES. There is no default value.

SUBMIT_REQUIREMENT_<Name>_REASON¶

An expression that evaluates to a string, to be printed for the job submitter when SUBMIT_REQUIREMENT_<Name> evaluates to False and the condor_schedd rejects the job. There is no default value.

SCHEDD_RESTART_REPORT¶

The complete path to a file that will be written with report information. The report is written when the condor_schedd starts. It contains statistics about its attempts to reconnect to the condor_startd daemons for all jobs that were previously running. The file is updated periodically as reconnect attempts succeed or fail. Once all attempts have completed, a copy of the report is emailed to address specified by CONDOR_ADMIN. The default value is $(LOG)/ScheddRestartReport. If a blank value is set, then no report is written or emailed.

JOB_SPOOL_PERMISSIONS¶

Control the permissions on the job’s spool directory. Defaults to user which sets permissions to 0700. Possible values are user, group, and world. If set to group, then the directory is group-accessible, with permissions set to 0750. If set to world, then the directory is created with permissions set to 0755.

CHOWN_JOB_SPOOL_FILES¶

Prior to HTCondor 8.5.0 on unix, the condor_schedd would chown job files in the SPOOL directory between the condor account and the account of the job submitter. Now, these job files are always owned by the job submitter by default. To restore the older behavior, set this parameter to True. The default value is False.

IMMUTABLE_JOB_ATTRS¶

A comma and/or space separated list of attributes provided by the administrator that cannot be changed, once they have committed values. No attributes are in this list by default.

SYSTEM_IMMUTABLE_JOB_ATTRS¶

A predefined comma and/or space separated list of attributes that cannot be changed, once they have committed values. The hard-coded value is: Owner ClusterId ProcId MyType TargetType.

PROTECTED_JOB_ATTRS¶

A comma and/or space separated list of attributes provided by the administrator that can only be altered by the queue super-user, once they have committed values. No attributes are in this list by default.

SYSTEM_PROTECTED_JOB_ATTRS¶

A predefined comma and/or space separated list of attributes that can only be altered by the queue super-user, once they have committed values. The hard-coded value is empty.

ALTERNATE_JOB_SPOOL¶

A ClassAd expression evaluated in the context of the job ad. If the result is a string, the value is used as an alternate spool directory under which the job’s files will be stored. This alternate directory must already exist and have the same file ownership and permissions as the main SPOOL directory. Care must be taken that the value won’t change during the lifetime of each job.

UNUSED_CLAIM_TIMEOUT¶

An integer value that is only used by the dedicated scheduler when scheduling parallel universe jobs. It specifies the number of seconds the schedd will keep a claimed slot, even when idle. Zero seconds means the schedd will keep a claim for an unbounded amount of time. Default is 300 seconds.

<OAuth2Service>_CLIENT_ID¶

The client ID string for an OAuth2 service named <OAuth2Service>. The client ID is passed on to the condor_credmon_oauth when a job requests OAuth2 credentials for a configured OAuth2 service.

<OAuth2Service>_CLIENT_SECRET_FILE¶

The path to the file containing the client secret string for an OAuth2 service named <OAuth2Service>. The client secret is passed on to the condor_credmon_oauth when a job requests OAuth2 credentials for a configured OAuth2 service.

<OAuth2Service>_RETURN_URL_SUFFIX¶

The path (https://<hostname>/<path>) that an OAuth2 service named <OAuth2Service> should be directed when returning after a user permits the submit host access to their account. Most often, this should be set to name of the OAuth2 service (e.g. box, gdrive, onedrive, etc.). The derived return URL is passed on to the condor_credmon_oauth when a job requests OAuth2 credentials for a configured OAuth2 service.

<OAuth2Service>_AUTHORIZATION_URL¶

The URL that the companion OAuth2 credmon WSGI application should redirect a user to in order to request access for a user’s credentials for the OAuth2 service named <OAuth2Service>. This URL should be found in the service’s API documentation. The authorization URL is passed on to the condor_credmon_oauth when a job requests OAuth2 credentials for a configured OAuth2 service.

<OAuth2Service>_TOKEN_URL¶

The URL that the condor_credmon_oauth should use in order to refresh a user’s tokens for the OAuth2 service named <OAuth2Service>. This URL should be found in the service’s API documentation. The token URL is passed on to the condor_credmon_oauth when a job requests OAuth2 credentials for a configured OAuth2 service.

CHECKPOINT_DESTINATION_MAPFILE¶

The location on disk of the file which maps from checkpoint destinations to how to invoke the corresponding clean-up plug-in. Defaults to $(ETC)/checkpoint-destination-mapfile.

AUTO_USE_FEATURE_PelicanRetryPolicy¶

A boolean that defaults to True. When True, the configuration template use feature:PelicanRetryPolicy will be automatically included in the schedd’s configuration.

SCHEDD_CHECKPOINT_CLEANUP_TIMEOUT¶

There’s only so long that the condor_schedd is willing to let clean-up for a single job (including all of its checkpoints) take. This macro defines that duration (as an integer number of seconds).

DEFAULT_NUM_EXTRA_CHECKPOINTS¶

By default, how many “extra” checkpoints should HTCondor store for a self-checkpoint job using third-party storage.

USE_JOBSETS¶

Boolean to enable the use of job sets with the htcondor jobset command. Defaults to false.

ENABLE_HTTP_PUBLIC_FILES¶

A boolean that defaults to false. When true, the schedd will use an external http server to transfer public input files.

HTTP_PUBLIC_FILES_ADDRESS¶

The full web address (hostname + port) where your web server is serving files (default: 127.0.0.1:80)

HTTP_PUBLIC_FILES_ROOT_DIR¶

Absolute path to the local directory where the web service is serving files from.

HTTP_PUBLIC_FILES_USER¶

User security level used to write links to the directory specified by HTTP_PUBLIC_FILES_ROOT_DIR. There are three valid options for this knob: <user>, <condor> or <%username%>

KEEP_DATA_CLAIM_IDLE¶

After an AP stages common files to an EP, it is responsible for keeping those files there for as long as jobs running on that EP require them. This integer duration in seconds defines how long the AP will keep those common files on the EP after the last such job exits. This delay gives other jobs using those common files time to be submitted (if necessary) and matched (if no claim can be re-used). It is analogous to keep_claim_idle, but the latency reductions are probably larger and reduce overall system overhead.

Defaults to 300 seconds.

CONTAINER_IMAGES_COMMON_BY_DEFAULT¶

Container images are definitionally immutable and usually the same for every job in a cluster (and many clusters in a DAG); in addition, they are usually large. Thus, container images are prime candidates for common file transfer, so that they get transferred to an EP once and can be used many times. (Because they use the same common file transfer mechanism as any other common file, container images are not presently shared between different job owners.)

Defaults to false. Setting this knob to true will cause HTCondor to do common file transfer for every container image that HTCondor transfers (i.e., not Docker images) unless container_is_common is set.

We expect this knob to default to true in a later version of HTCondor.