Release v2.8.0#877
Merged
erikdarlingdata merged 1 commit intodevfrom Apr 22, 2026
Merged
Conversation
Adds nonclustered indexes to collect.query_stats, procedure_stats, and query_store_data for Dashboard grid lookups (#835). Ports Memory Pressure Events to Lite (#865). Multiple Azure SQL DB collector fixes (#857). FinOps severity sort order fix (#872). Grid auto-scrolling (#843). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Owner
Author
Review summaryMechanical release-cut PR for v2.8.0. 6 files, 66/-22, all docs + version metadata. What it does
Good
Needs attention
Nothing to block on — heads-up on the date string only. Generated by Claude Code |
erikdarlingdata
added a commit
that referenced
this pull request
Apr 22, 2026
* Implements #843 in Lite * Implements #843 for Full Dashboard * Add trailing newlines to ScrollPanBehavior files Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * Harden DuckDB queries: parameterize values, escape paths, fix IsArchiving race Addresses security findings from #840: - #846: Escape single quotes in file paths interpolated into read_parquet() and COPY TO - #847: Use DuckDB $1 parameters for DateTime values instead of string interpolation - #849: Make IsArchiving volatile-backed to prevent stale reads across threads Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * Encrypt webhook URLs with DPAPI via Windows Credential Manager Moves Teams and Slack webhook URLs from plaintext settings.json/preferences.json to Windows Credential Manager (DPAPI-encrypted), matching the existing pattern used for SMTP passwords and SQL Server credentials. Includes automatic migration: on first settings load, any plaintext URLs are moved to Credential Manager and removed from the JSON file. Closes #848 Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * Lazy-load server tabs: only load visible tab on open, full-load on first visit Initial tab open and Refresh button now only load the currently visible tab. First switch to any tab triggers a full refresh of that tab (all sub-tabs). Subsequent refreshes only hit the active sub-tab. Ctrl+Click on Refresh Tab (or Ctrl+F5) refreshes all tabs at once. Apply to All Tabs retains existing full-refresh behavior. Fixes #835 — prevents heavy queries (e.g. GetQueryStatsAsync) from running on tab open when the user is only viewing Overview. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * Cap query/procedure/query store grid results to TOP 500 GetQueryStatsAsync, GetProcedureStatsAsync, and GetQueryStoreDataAsync were returning unbounded result sets. With 49 databases and 742K rows in query_stats over 3 days, the GROUP BY with plan XML could produce thousands of rows and timeout after 120 seconds. TOP 500 ordered by avg CPU desc is plenty for a grid view and prevents the query from consuming unbounded memory on large installations. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * Remove pointless WAITFOR DECOMPRESS filters from stats/store queries The CAST(DECOMPRESS(...)) NOT LIKE N'WAITFOR%' filter was decompressing query text on every row in query_stats and query_store_data just to skip WAITFOR queries. WAITFOR has no plan and no meaningful stats — it only matters in query snapshots (active sessions), where the filter remains. On a 742K-row query_stats table, this was a significant contributor to the 120-second query timeouts reported in #835. The snapshot filters (report.query_snapshots) and MCP phased queries are untouched — they filter after TOP on already-hydrated text. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * Refactor query/procedure/query store stats to phased DECOMPRESS approach All three grid queries now use a 3-phase pattern: 1. Aggregate numerics into temp table (no DECOMPRESS) 2. Sum across lifetimes, rank TOP 500 3. OUTER APPLY to decompress text/plan for only the 500 winners On a 742K-row query_stats table, this reduces DECOMPRESS calls from 742K to 500 — eliminating the 16+ minute query times reported in #835. Matches the existing phased pattern used by the MCP query tools. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * Fix FinOps TDE recommendation on SQL Server 2019+ (#854) TDE moved to Standard Edition in SQL 2019, so dm_db_persisted_sku_features no longer reports it as Enterprise-only. Add version check to give version-appropriate licensing guidance instead of falsely claiming no databases use TDE. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * Sync PlanAnalyzer and BenefitScorer from PerformanceStudio (Apr 9-16) Port PS PRs #216, #217, #219, #224, #229, #230, #231 to PM. PlanAnalyzer changes: - Rule 5: Suppress for Key Lookups (point lookups mislead per-execution estimates) - Rule 8: Enhanced parallel skew with batch mode sort detection and practical context - Rule 9: Large memory grant shows top 3 consumers sorted by row count - Rule 10: Key lookup overhaul — show output columns, check predicate filtering, softer advice - Rules 11/12/29: Suppress on 0-execution nodes (operator never ran) - Rule 11: I/O wait severity elevation when scan hits disk - Rule 24: FormatNodeRef helper includes object name for data access operators - Rule 26: Suppress when row goal prediction was correct, specific cause detection - Wait stats: DescribeWaitType with full wait type coverage, multi-wait summary - New helpers: GetWaitLabel, HasSignificantIoWaits, IdentifyRowGoalCause, FormatNodeRef - GetOperatorOwnElapsedMs changed to internal for BenefitScorer access BenefitScorer (new file): - Stage 1: MaxBenefitPercent for operator-level rules (filter, spill, lookup, etc.) - Stage 2: Wait stats benefit scoring with parallel allocation (Joe's formula) PlanModels additions: - MaxBenefitPercent and ActionableFix on PlanWarning - WaitBenefit class and WaitBenefits list on PlanStatement Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * Fall back to single-database mode when Azure master is inaccessible (#857) On Azure SQL DB, some logins (e.g. Microsoft Dynamics 365 FO) are granted access only to a specific user database and not to master. The three collectors that enumerate databases via master — query_stats, database_size_stats, file_io_stats — would fail the first time and produce an empty screen. GetAzureDatabaseListAsync now catches known access-denied/login-failed errors from the master connection, caches the per-server decision, and returns the connection's InitialCatalog as a single-element list. The three callers already loop per-database, so single-DB mode works without further changes. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Add nonclustered indexes for query/procedure/query store lookups Phase 3 OUTER APPLY hydration of compressed query_text/plan_text was forcing an Eager Index Spool over the full collect.query_stats table (and similar for procedure_stats / query_store_data), which took 104 seconds on a 742K-row table in #835. Changes: - Remove CONVERT(binary(8), nvarchar-hash, 1) anti-pattern from OUTER APPLY WHERE clauses by keeping query_hash as native binary(8) in temp tables. query_hash is only converted to nvarchar(20) in the final output projection. - Add three nonclustered indexes (install script and upgrade script): IX_query_stats_hash_lookup (query_hash, database_name, collection_time DESC) IX_procedure_stats_name_lookup (database_name, schema_name, object_name, collection_time DESC) IX_query_store_data_id_lookup (database_name, query_id, collection_time DESC) - Indexes use SORT_IN_TEMPDB = ON and DATA_COMPRESSION = PAGE. - ONLINE = ON is applied conditionally via dynamic SQL based on SERVERPROPERTY('EngineEdition') — Enterprise/Developer/Azure only, since Standard/Web/Express don't support online index operations. Tested against CADelete's 742K-row table: Phase 3 went from 104s to well under 1s (5s total for the full three-phase query). Fixes #835 Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Scope query snapshots to current database on Azure SQL DB (#857) On Azure SQL Database, logins without access to master can't resolve cross-database rows returned by sys.dm_exec_requests, which caused the Live Snapshot button and the query snapshots collector to error in D365FO-style environments (reported by @TrudAX in #857 after PR #858). BuildQuerySnapshotsQuery now takes an isAzureSqlDatabase flag and emits AND der.database_id = DB_ID() only when true. Boxed SQL Server, MI, and elastic pool behavior is unchanged. The Live Snapshot button path gets the flag through a new ServerTab constructor parameter wired from the cached ServerConnectionStatus.SqlEngineEdition. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Polish Lite chart axes and sub-tab styling - Chart X-axis prints the date line only on the first tick and on ticks where the date changes; all other ticks show time only. Format respects current culture (en-GB → dd/MM, de-DE → dd.MM, 24h clocks, etc.). Implemented as a DateTimeTicksBottomDateChange() extension in Lite/Helpers/AxesExtensions.cs and applied to every DateTimeTicksBottom call site in ServerTab and CorrelatedTimelineLanesControl. - Server name no longer duplicated in the ServerTab header status line; ConnectionStatusText now shows just "Connecting..." / "Last refresh: ...". - Chart tick label font bumped from 12 to 13 for readability. - New SubTabItemStyle (thin accent underline, transparent background) in all three themes, applied to Queries / Memory / File I/O / Blocking / Perfmon / Running Jobs sub-TabControls so sub-tab selection no longer looks identical to main-tab selection. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Port Lite chart/tab polish to Dashboard + LSP diagnostics cleanup Dashboard polish (ports the same items merged to Lite in #862): - New Dashboard/Helpers/AxesExtensions.cs with DateTimeTicksBottomDateChange(), culture-aware (dd/MM for en-GB, dd.MM for de-DE, 24h clocks, etc.). All 52 call sites of DateTimeTicksBottom() across 10 files swapped to use it. - TabHelpers.ApplyTheme + ReapplyAxisColors bump chart tick label font from 12 to 13 so numbers read cleaner on wide charts. - SubTabItemStyle added to Dark / Light / CoolBreeze themes: thin accent underline + transparent background instead of filled cyan, so sub-tabs don't look identical to main tabs when selected. Wired via ItemContainerStyle on 11 sub-TabControls (Overview's inner tabs, Collection Health's inner tabs, Locking, ConfigChanges, CurrentConfig, FinOps, Memory, ResourceMetrics ×2, SystemEvents, QueryPerformance). LSP diagnostics cleanup (tracked work from chore/lsp-diagnostics-cleanup): - Small nullability/warning fixes across Dashboard and Lite services, analysis helpers, and BenefitScorer / PlanAnalyzer. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Fix Overview crosshair disappearing after tab switches / layout passes Root cause: the control wired `Unloaded += ...Dispose()` on the crosshair manager, and WPF fires Unloaded for transient reasons (tab virtualization, layout rebuilds, etc.), not just when the control is actually going away. Dispose() clears the manager's lane list, after which ReattachVLines runs over an empty list and the crosshair is gone permanently. Changes: - Remove the Unloaded → Dispose() handler in both Lite and Dashboard copies. The manager holds only managed state (a Popup + lane references) — GC will clean it up with the control. - Remove the now-redundant `_isRefreshing` flag from CorrelatedCrosshairManager. The `lane.VLine == null` check in OnMouseMove is a sufficient "not ready" guard and is self-healing once VLines are recreated. - Wrap ReattachVLines in a try/finally on the control side, with a new idempotent EnsureVLinesAttached() safety net that only creates VLines for lanes where they're still null. - Make CreateVLine catch per-lane exceptions so one failing chart can't prevent the others from recovering. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Fix Memory Pressure Events chart filter; add MCP interpretation (#865) Chart previously filtered to HIGH severity only (indicator>=3), which on most servers never fires, producing an empty chart even when sp_pressuredetector- level medium pressure (indicator=2) was occurring constantly. Switch to stacked bars per hour, split by SQL Server (process) vs Operating System (system), with severe events capped on top of medium in a darker shade. Extend ChartHoverHelper to support BarPlot tooltips. Add MCP guidance for interpreting indicator values and routing to the right follow-up tool. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Port Memory Pressure Events feature to Lite (#865) Lite was missing the RING_BUFFER_RESOURCE_MONITOR collector entirely — no collector, no table, no chart, no MCP tool. This adds the full feature: - Schema: new memory_pressure_events table + index, schema v25, added to ArchivableTables, server-id-fix list, and ArchiveService. - Collector: CollectMemoryPressureEventsAsync queries the ring buffer and client-side-dedupes against DuckDB's MAX(sample_time). Azure SQL DB returns zero rows (ring buffer not exposed there). Scheduled every 5 min (Aggressive and Balanced presets) or 15 min (Low-Impact). - UI: new 'Memory Pressure Events' sub-tab on the Memory tab with the same stacked-bar chart as Dashboard (SQL Server medium/severe, Operating System medium/severe). Wired into full-load and sub-tab-switch refresh paths. - Hover: ported the BarPlot support from Dashboard's ChartHoverHelper so bar tooltips work and report the correct segment height for stacked bars. - MCP: new get_memory_pressure_events tool + the 'Interpreting Memory Pressure Events' guidance section in McpInstructions. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Bump schema table count test to 30 for memory_pressure_events Companion update to the new memory_pressure_events table added in this PR. SchemaStatements_MatchTableCount asserts the total table count; needs to move from 29 to 30 to reflect the new table. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Fix blocked process report plan lookup (#867) (#868) Right-click > View Plan on a Blocked Process Reports row silently fell through (no handler case) and Get Actual Plan erred with "no query text." - Split the grid onto its own BlockedProcessContextMenu with separate View Blocked Plan / View Blocking Plan actions; drop Get Actual Plan (re-executing a mid-transaction blocked query is a foot-gun). - Parse all <frame> entries from the BPR XML's executionStack, filter the 42-byte all-zero sql_handle placeholder (dynamic SQL / system context), default stmtstart=0 / stmtend=-1 per the dm_exec_text_query_plan convention. Matches sp_HumanEventsBlockViewer's XPath and join shape. - Add FetchPlanBySqlHandleAsync keyed on sql_handle + statement offsets against sys.dm_exec_query_stats. Caller iterates frames until one resolves; falls back to a clear "plan no longer in cache" message. Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Pre-filter query snapshot requests into #temp on Azure SQL DB (#857) (#869) Follow-up to #861. The DB_ID() predicate in the WHERE clause wasn't enough — the OUTER APPLYs to sys.dm_exec_sql_text and sys.dm_exec_text_query_plan were still being evaluated against master-scoped rows from sys.dm_exec_requests before the filter was applied, tripping VIEW SERVER PERFORMANCE STATE errors for DB-scoped logins (D365FO). A CTE or derived table wouldn't guarantee the filter order, so materialise the filtered request rows into #req first and drive the DMFs off that. Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Stop retrying collectors after non-transient permission denial (#857) (#870) The collector loop already classifies SQL errors 229 / 297 / 300 as PERMISSIONS status and excludes them from the failure rate, but it keeps re-running the collector every interval and logging an identical denial each time. For DB-scoped logins on Azure SQL DB (e.g. D365FO) this churns the collection log and gives no new information — the permission won't change mid-session. Flag the collector on first denial and short-circuit RunCollectorAsync so we don't make the round-trip or the log entry. Flag is in-memory per (server, collector) — cleared on app restart so newly granted permissions are picked up on the next launch. Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Skip live query plans on Azure SQL DB (#857) (#871) sys.dm_exec_query_statistics_xml requires VIEW SERVER PERFORMANCE STATE on Azure SQL Database regardless of scope, so DB-scoped logins (e.g. D365FO) still hit error 300 even after the #temp pre-filter landed in #869. The OUTER APPLY evaluates the DMF for every session in #req and fails on the permission check before returning rows. Force supportsLiveQueryPlan=false for SqlEngineEdition=5 in both the collector and the Live Snapshot button paths. Boxed SQL Server and Azure MI (edition 8) still get live plans as before. Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Fix FinOps recommendation severity sort order (#872) Sort recommendations by severity rank (High=1, Medium=2, Low=3) instead of alphabetically. Adds SeveritySort property to RecommendationRow and uses it as SortMemberPath for the Severity column. Display strings are unchanged. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Fix FinOps severity sort order in Dashboard (#872) Severity column was sorting alphabetically (High, Low, Medium) instead of by severity ranking. Added SeveritySort computed property on FinOpsRecommendation, ordered results by it, and wired the DataGrid column's SortMemberPath so click-sort matches the default order. Mirrors the Lite fix in PR #874. * Drop sys.dm_os_schedulers from memory_stats on Azure SQL DB (#857) (#876) Azure SQL Database DBs hosted in an elastic pool (notably D365FO customer tenants) enforce VIEW SERVER PERFORMANCE STATE on sys.dm_os_schedulers regardless of the login's DB-scoped grants — VIEW DATABASE STATE + VIEW DATABASE PERFORMANCE STATE on the user DB are not sufficient. Verified by reproducing the failure in a standard Azure SQL DB elastic pool with a contained DB user; bare sys.dm_exec_requests/sys.dm_os_sys_info/sys.dm_os_performance_counters succeed but sys.dm_os_memory_clerks / sys.dm_os_schedulers / sys.dm_os_waiting_tasks fail with error 300. The other failing collectors (memory_clerks, waiting_tasks, tempdb_stats) have no DB-scoped alternative and will stay skip-gated via #870 for these users. Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Release v2.8.0: version bumps and changelog (#877) Adds nonclustered indexes to collect.query_stats, procedure_stats, and query_store_data for Dashboard grid lookups (#835). Ports Memory Pressure Events to Lite (#865). Multiple Azure SQL DB collector fixes (#857). FinOps severity sort order fix (#872). Grid auto-scrolling (#843). Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * Scope v2.8.0 webhook DPAPI note to Dashboard (#879) Lite webhook URLs still read from plaintext settings — avoids implying the security hardening shipped to both editions. Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> --------- Co-authored-by: ClaudioESSilva <claudiosil100@gmail.com> Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
collect.query_stats,procedure_stats,query_store_datato eliminate Eager Index Spools in Dashboard grid lookups ([BUG] High Memory using Full Dashboard #835)get_memory_pressure_eventsMCP tool ported from Dashboard ([QUESTION] What should Memory Pressure Events show? #865)sys.dm_os_schedulersfor elastic-pool contained users, non-transient permission denials stop retriesTest plan
Installer.Tests— 46/46 passeddotnet build -c Debug— 0 errors--reinstall) — 54/54 scripts, 48 HEALTHY, 0 errorsinstallation_historySUCCESS with correctprevious_versionacross all paths🤖 Generated with Claude Code