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When a job has a restriction defined, it means only run on hosts that satisfy the restriction expression. Hosts that don't satisfy the restriction expression won't be considered as dispatch candidates (the job will never be sent to that Worker).
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When a Worker has a restriction defined via its worker_restrictions value, it means only run jobs whose cluster value matches one of the clusters in that worker's restriction expression. The worker won't accept jobs whose cluster doesn't match one of the clusters in the worker's restriction expression.
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/[<segment>/][<segment>/][+|*]
- * means only the first level below.
- + means all levels below that level, regardless of depth in the hierarchy.
| Tip |
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The restriction value is actually evaluated as an expression, and multiple clusters are specified in a "this cluster OR that cluster OR the other cluster" type of string, with the "||" symbol to mean OR. |
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Worker Restrictions
Define a host that will only run jobs in /private/very/deep
worker_cluster = "/private/very/deep"
worker_restrictions = "/private/very/deep"
Define a host that will run jobs in any cluster at /private or 1 level below - done with the *
worker_cluster = "/private"
worker_restrictions = "/private or /private/*"
Define a host that will only run jobs in /private/very or any level below - done with the +
worker_cluster = "/private/very"
worker_restrictions = "/private/very or /private/very/+"
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Submit a job that will have highest priority in /private and run only in /private:
qbsub -cl /private -restr /private <cmd>
Submit a job that will have highest priority in /private/very, but could run in any host in /private or in the first level below /private
qbsub -cl /private/very -restr '/private or /private/*' <cmd>
Submit a job that will have highest priority in /private/very/deep, but could run in any host at any level at /private or below
qbsub -cl /private/very/deep -restr '/private or /private/+' hostname
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