fix: Add missing indices to PilotAgentsDB and JobDB#8463
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chrisburr wants to merge 2 commits intoDIRACGrid:integrationfrom
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fix: Add missing indices to PilotAgentsDB and JobDB#8463chrisburr wants to merge 2 commits intoDIRACGrid:integrationfrom
chrisburr wants to merge 2 commits intoDIRACGrid:integrationfrom
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…Agents SiteDirector.countPilots() filters on these three columns every scheduling cycle. The existing Statuskey index has GridSite as the leading column and does not cover Queue, resulting in a full table scan.
WorkflowTasks.updateTransformationReservedTasks() looks up jobs by JobName via SELECT JobID FROM Jobs WHERE JobName IN (...). Without an index this requires a full table scan. Also benefits dstat.py and the REST API job-name lookups.
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Feb 19, 2026
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Two hot-path queries are doing full table scans due to missing indices:
PilotAgentsDB —
SiteDirector.countPilots()filters on(DestinationSite, Queue, Status)every scheduling cycle. The existingStatuskeyindex is(GridSite, DestinationSite, Status)which doesn't coverQueueand has the wrong leading column for this query. A compositeidx_dest_queue_statusindex is added.JobDB —
WorkflowTasks.updateTransformationReservedTasks()callsgetJobs({"JobName": jobNames}), which doesSELECT JobID FROM Jobs WHERE JobName IN (...).JobNamehad no index at all, causing a full table scan. Also hit bydstat.pyand the REST API. AJobNameindex is added.Both are pure schema changes to the
.sqldefinition files. For existing deployments the schema change only takes effect on newly created tables (__initializeDBskips tables that already exist). Production DBs need a one-offALTER TABLEto add the indices.BEGINRELEASENOTES
*WorkloadManagement
FIX: Add composite (DestinationSite, Queue, Status) index to PilotAgents table for SiteDirector.countPilots()
FIX: Add JobName index to Jobs table for TransformationSystem and monitoring lookups
ENDRELEASENOTES