sqlinsight-pro/SQL Scripts/_collectors/WaitSamplingCollector.sql
Søren Eggert Lundsteen Olsen 2284e7f082 SQL Scripts: one reviewable script per rule
A DBA should be able to review every statement SQLInsight sends to a
monitored server before granting it access. "SQL Scripts/<rule-id>.sql"
holds, per rule (82 built-in, 16 community), a Danish header (what and
why, how C# judges the data, thresholds with config keys, severity,
exact GRANTs, versions, collector file and member) and the collector's
SQL verbatim, every version variant as its own batch.
"_collectors/<Collector>.sql" holds each collector's queries once.

The only statement that is not strictly read-only is documented in the
scripts: the deadlock collector's session temp table (#system_health).

Inline SQL in the collectors moved to internal constants and Build*Sql
methods (no text changed), so SqlScriptTests can check that the scripts
still contain the SQL the code sends, that every rule has a script, that
every collector query is registered, and that nothing writes.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-02 13:20:06 +02:00

46 lines
3.4 KiB
Transact-SQL

-- ===================================================================================================================
-- Collector: WaitSamplingCollector ("wait-sampling")
-- ===================================================================================================================
-- Hvad: Active session sampling: hvad ventende brugerrequests venter på. Bruges af tidsvindue-analysen i
-- web-UI'et, ikke af nogen regel.
-- Fil: src/SQLInsight.Collectors/Performance/WaitSamplingCollector.cs
-- Interval: 15 sek som standard (SQLInsight:CollectorIntervals:wait-sampling)
-- Versioner: SQL Server 2005 og nyere
--
-- Rettigheder til agentens login (se db/permissions/grant-least-privilege.sql; [agent] = agentens login):
-- GRANT VIEW SERVER STATE TO [agent]; -- SQL Server 2005-2019
-- GRANT VIEW SERVER PERFORMANCE STATE TO [agent]; -- SQL Server 2022+ (erstatter VIEW SERVER STATE)
-- GRANT VIEW SERVER SECURITY STATE TO [agent]; -- SQL Server 2022+
--
-- Bruges af: Ingen regel (kun web-UI'ets analyse).
-- Read-only: Ja: kun SELECT samt SET-sessionsindstillinger. Intet ændrer data, indstillinger eller objekter.
-- Kørsel: Kør i SSMS som agentens login. Hver variant er sin egen batch (GO); en variant for en anden SQL Server-version
-- end din kan fejle - det er forventet. Agenten kører altid med sessionsindstillingerne i _collectors/InstanceProbe.sql.
-- ===================================================================================================================
-- Variant: SQL Server 2008 og nyere
-- Kilde: WaitSamplingCollector.Sql2008
-- Kode: src/SQLInsight.Collectors/Performance/WaitSamplingCollector.cs : WaitSamplingCollector.Sql2008
SELECT r.session_id, r.wait_type, r.wait_time, DB_NAME(r.database_id), r.blocking_session_id,CASE WHEN r.query_hash IS NULL OR r.query_hash = 0x0000000000000000 THEN NULL ELSE CONVERT(varchar(20), r.query_hash, 1) END,
CAST(SUBSTRING(st.text, r.statement_start_offset / 2 + 1,
CASE WHEN r.statement_end_offset = -1 THEN 4000 ELSE (r.statement_end_offset - r.statement_start_offset) / 2 + 1 END) AS nvarchar(4000))
FROM sys.dm_exec_requests r
JOIN sys.dm_exec_sessions s ON s.session_id = r.session_id
OUTER APPLY sys.dm_exec_sql_text(r.sql_handle) st
WHERE s.is_user_process = 1 AND r.session_id <> @@SPID AND r.wait_type IS NOT NULL
AND (s.program_name IS NULL OR s.program_name NOT LIKE N'SQLInsight Pro%')
GO
-- Variant: SQL Server 2005
-- Kilde: WaitSamplingCollector.Sql2005
-- Kode: src/SQLInsight.Collectors/Performance/WaitSamplingCollector.cs : WaitSamplingCollector.Sql2005
SELECT r.session_id, r.wait_type, r.wait_time, DB_NAME(r.database_id), r.blocking_session_id,CASE WHEN r.sql_handle IS NULL THEN NULL
ELSE sys.fn_varbintohexstr(r.sql_handle) + ':' + CAST(r.statement_start_offset AS varchar(12)) + ':' + CAST(r.statement_end_offset AS varchar(12)) END,
CAST(SUBSTRING(st.text, r.statement_start_offset / 2 + 1,
CASE WHEN r.statement_end_offset = -1 THEN 4000 ELSE (r.statement_end_offset - r.statement_start_offset) / 2 + 1 END) AS nvarchar(4000))
FROM sys.dm_exec_requests r
JOIN sys.dm_exec_sessions s ON s.session_id = r.session_id
OUTER APPLY sys.dm_exec_sql_text(r.sql_handle) st
WHERE s.is_user_process = 1 AND r.session_id <> @@SPID AND r.wait_type IS NOT NULL
AND (s.program_name IS NULL OR s.program_name NOT LIKE N'SQLInsight Pro%')
GO