Issues

• Lite: shorten the store-lock hold behind steady-state write timeouts (after #5688 names the holder)

  erikdarlingdata/PerformanceMonitor#5691 · Filter by author erikdarlingdata opened on Oct 11, 2026

• Darling: the Query Store collector's per-database watermark read takes about 384 ms a call

  erikdarlingdata/PerformanceMonitor#5684 · Filter by author erikdarlingdata opened on Oct 11, 2026

• CI: start the build and test shards together with Guard tests, so a green pull request run stops waiting 7 to 8 minutes

  in-progress
  erikdarlingdata/PerformanceMonitor#5669 · Filter by author erikdarlingdata opened on Oct 11, 2026
  1

• Darling: let another service send alerts through Darling's channels, routes and mute rules

  enhancement
  erikdarlingdata/PerformanceMonitor#5654 · Filter by author erikdarlingdata opened on Oct 10, 2026

• The PowerShell scripts in the Darling zip are not Authenticode-signed

  erikdarlingdata/PerformanceMonitor#5652 · Filter by author erikdarlingdata opened on Oct 9, 2026
  1

• [BUG] Web UI audit on 3.9.0-nightly.20261006.515: 22 defects (blocking counts, CPU duplicates, FinOps, charts, UI wording)

  bug
  erikdarlingdata/PerformanceMonitor#5644 · Filter by author erikdarlingdata opened on Oct 9, 2026
  1

• [QUESTION]

  question
  erikdarlingdata/PerformanceMonitor#5643 · Filter by author jirish-hcs opened on Oct 9, 2026
  2

• Darling: alert on runnable-task queue depth per scheduler

  enhancement
  erikdarlingdata/PerformanceMonitor#5641 · Filter by author erikdarlingdata opened on Oct 9, 2026
  1

• Darling: alert on client timeouts from the sqlserver.attention extended event

  enhancement
  erikdarlingdata/PerformanceMonitor#5640 · Filter by author erikdarlingdata opened on Oct 9, 2026
  1

• Darling: the first raw procedure duration trend read takes 4-10 s on a busy server since #5463

  erikdarlingdata/PerformanceMonitor#5638 · Filter by author erikdarlingdata opened on Oct 9, 2026
  1

• [BUG] MCP tool audit on 3.9.0-nightly.20261006.515: 23 defects (blocking, spills, FinOps, store, tool payloads)

  bug
  erikdarlingdata/PerformanceMonitor#5633 · Filter by author erikdarlingdata opened on Oct 9, 2026
  1

• Agent dispatch: alerts start an agent investigation, with opt-in agent actions that Darling checks and executes (supersedes #2138)

  enhancement
  erikdarlingdata/PerformanceMonitor#5632 · Filter by author erikdarlingdata opened on Oct 9, 2026
  4

• PLAN_REGRESSION compares plans compiled for different inputs, and its advice to force the "best" plan makes the slow case slower

  bugin-progress
  erikdarlingdata/PerformanceMonitor#5630 · Filter by author erikdarlingdata opened on Oct 9, 2026
  2

• Future release project (not 3.10): keep MCP and web reads fast when many users share one store

  enhancement
  erikdarlingdata/PerformanceMonitor#5506 · Filter by author erikdarlingdata opened on Oct 8, 2026

• Option to run the web viewer and MCP server on a separate host (bundled install stays the default)

  enhancementowner:none
  erikdarlingdata/PerformanceMonitor#4369 · Filter by author erikdarlingdata opened on Sep 26, 2026