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triggers

README.md

Slurm trigger scripts

Slurm "triggers" include events such as:

  • a node is down, is drained, or fails.
  • a Slurm daemon stops or restarts
  • a job reaching its time limit
  • a job terminating.

See the strigger manual page.

Slurm node scripts

Some convenient scripts for working with node triggers:

  • notify_nodes_down: Trigger script for node down state
  • notify_nodes_drained: Trigger script for node drained state

Slurm controller scripts

Some convenient scripts for working with the Slurm controller slurmctld. The following scripts are used to monitor the slurmctld and the slurmdbd using the strigger command:

  • notify_slurmdbd_down: Trigger script for primary_slurmdbd_failure
  • notify_slurmdbd_resumed: Trigger script for primary_slurmdbd_resumed
  • notify_slurmctld_acct_buffer_full: Trigger script for slurmctld_acct_buffer_full

Slurm database scripts

Some convenient scripts for working with the slurmdbd database MySQL/MariaDB. The following scripts are used to monitor the slurmdbd database connection using the strigger command:

  • notify_primary_database_failure: Trigger script for primary_database_failure
  • notify_primary_database_resumed_operation: Trigger script for primary_database_resumed_operation

Usage of daemon triggers

Copy these scripts to /usr/local/bin/.

Become the slurm user.

Initialize the triggers by:

slurm> strigger --set --primary_slurmdbd_failure --program=/usr/local/bin/notify_slurmdbd_down
slurm> strigger --set --primary_slurmdbd_resumed --program=/usr/local/bin/notify_slurmdbd_resumed
slurm> strigger --set --primary_slurmctld_acct_buffer_full --program=/usr/local/bin/notify_slurmctld_acct_buffer_full
slurm> strigger --set --primary_slurmdbd_failure --program=/usr/local/bin/notify_primary_database_failure
slurm> strigger --set --primary_slurmdbd_failure --program=/usr/local/bin/notify_primary_database_resumed_operation

Usage of node triggers

Copy the scripts notify_nodes_down and notify_nodes_drained to /usr/local/bin/. If necessary modify the variables slurm_user, slurm_notify, my_mail in the scripts.

Become the slurm user.

To set up the triggers:

slurm> strigger --set --node --down    --program=/usr/local/bin/notify_nodes_down
slurm> strigger --set --node --drained --program=/usr/local/bin/notify_nodes_drained

To display enabled triggers:

strigger --get

Example output

Example contents of a trigger mail message:

Sun Jul 16 21:28:05 2017
NODELIST   NODES PARTITION       STATE CPUS    S:C:T MEMORY TMP_DISK WEIGHT AVAIL_FE REASON              
b028           1    xeon8*        down    8    2:4:1  23900    32752      1 xeon5570 Node unexpectedly re
Setting new trigger --node --down --program=/usr/local/bin/notify_nodes_down