Reduce first-run lookback to 1 hour for all collectors#340
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erikdarlingdata merged 1 commit intodevfrom Feb 27, 2026
Merged
Reduce first-run lookback to 1 hour for all collectors#340erikdarlingdata merged 1 commit intodevfrom
erikdarlingdata merged 1 commit intodevfrom
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…335) All 8 collectors with first-run backfill logic now look back 1 hour instead of 3-7 days (or unlimited). The aggressive lookback was a development convenience that becomes catastrophic on large environments — particularly query_store_collector with XML plan decompression on multi-GB Query Store databases, causing timeout→rollback→retry loops. Changed collectors: - 08_collect_query_stats: all DMV data → 1 hour - 09_collect_query_store: 3 days → 1 hour - 10_collect_procedure_stats: all DMV data → 1 hour - 18_collect_cpu_utilization_stats: 7 days → 1 hour - 22_collect_blocked_processes: 3 days → 1 hour - 24_collect_deadlock_xml: 3 days → 1 hour - 28_collect_system_health_wrapper: 3 days → 1 hour - 29_collect_default_trace: all available → 1 hour Clean install verified on sql2016 with zero errors. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This was referenced Feb 27, 2026
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Summary
Collectors changed
query_statsquery_storeprocedure_statscpu_utilization_statsblocked_processesdeadlock_xmlsystem_health_wrapperdefault_traceTest plan
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