Søren Eggert Lundsteen Olsen
2284e7f082
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>
93 lines
6.9 KiB
Transact-SQL
93 lines
6.9 KiB
Transact-SQL
-- ===================================================================================================================
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-- SQLI-TRAN-002: Transaktion bruger meget transaktionslog
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-- ===================================================================================================================
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-- Regel-id: SQLI-TRAN-002
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-- Titel: Transaktion bruger meget transaktionslog
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-- Alvor: Medium
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-- Versioner: SQL Server 2005 og nyere.
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--
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-- Hvad tjekkes, og hvorfor:
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-- Om en transaktion holder meget transaktionslog, som først kan frigives, når den afsluttes.
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--
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-- Vurdering (sker i C# ud fra de indsamlede data, ikke i SQL'en, medmindre andet er nævnt):
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-- Fund (op til 10, største først) for transaktioner, hvor database_transaction_log_bytes_used + _reserved (summeret
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-- over databaser) er mindst grænsen. Grænsen indgår også i SQL'en: transaktioner over grænsen sorteres først, så de
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-- altid er blandt de 100 rækker.
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--
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-- Grænseværdier (konfigurationsnøgle i agentens appsettings.json og standardværdi):
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-- SQLInsight:Activity:TransactionLogMegabytes, standard 1024 (MB) = 1073741824 bytes i SQL'en.
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--
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-- Rettigheder til agentens login (se db/permissions/grant-least-privilege.sql; [agent] = agentens login):
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-- GRANT VIEW SERVER STATE TO [agent]; -- SQL Server 2005-2019
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-- GRANT VIEW SERVER PERFORMANCE STATE TO [agent]; -- SQL Server 2022+ (erstatter VIEW SERVER STATE)
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-- GRANT VIEW SERVER SECURITY STATE TO [agent]; -- SQL Server 2022+
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--
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-- Data kommer fra (collector, fil : medlemmer, interval):
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-- ActivityCollector
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-- Fil: src/SQLInsight.Collectors/Concurrency/ActivityCollector.cs
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-- Medlemmer: ActivityCollector.BuildTransactionsSql(1024) = TransactionsSql udfyldt,
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-- ActivityCollector.BuildLongRequestsSql(15) = LongRequestsSql udfyldt
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-- Interval: 1 min som standard (SQLInsight:CollectorIntervals:activity)
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-- Delt script: SQL Scripts/_collectors/ActivityCollector.sql
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-- Regelkode: src/SQLInsight.Rules/Concurrency/ActivityRules.cs : LargeTransactionRule.Evaluate
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--
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-- Read-only: Ja: kun SELECT samt SET-sessionsindstillinger. Intet ændrer data, indstillinger eller objekter.
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-- Kørsel: Kør i SSMS som agentens login (eller et login med samme rettigheder). Hver variant er sin egen batch
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-- (GO); en variant for en anden SQL Server-version end din kan fejle - det er forventet.
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-- Per-database-forespørgsler er vist for databasen msdb, som findes overalt: ret navnet til den
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-- database, du vil se.
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-- ===================================================================================================================
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-- -------------------------------------------------------------------------------------------------------------------
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-- Forbindelsen: Sessionsindstillinger, agenten sætter på hver forbindelse
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-- -------------------------------------------------------------------------------------------------------------------
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-- Variant: Alle versioner: sættes på hver forbindelse, agenten åbner
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-- Kilde: SqlConnectionFactory.SessionSettings
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-- Kode: src/SQLInsight.Connectivity/SqlConnectionFactory.cs : SqlConnectionFactory.SessionSettings
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SET LOCK_TIMEOUT 5000; SET DEADLOCK_PRIORITY LOW; SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
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GO
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-- -------------------------------------------------------------------------------------------------------------------
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-- ActivityCollector: Åbne brugertransaktioner (alder, log) og brugersætninger, der har kørt længere end grænsen.
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-- Agentens egne sessioner er udeladt.
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-- -------------------------------------------------------------------------------------------------------------------
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-- Variant: SQL Server 2005 og nyere (vist med standardgrænsen 1024 MB log)
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-- Kilde: ActivityCollector.BuildTransactionsSql
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-- Kode: src/SQLInsight.Collectors/Concurrency/ActivityCollector.cs : ActivityCollector.BuildTransactionsSql(1024) = TransactionsSql udfyldt
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SELECT TOP 100 t.session_id, t.transaction_id, t.name, DATEADD(minute, DATEDIFF(minute, GETDATE(), GETUTCDATE()), t.begin_time),
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t.used, t.reserved, t.db, t.dbs, s.login_name, s.host_name, s.program_name, s.status, r.wait_type,
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CAST(CASE WHEN r.sql_handle IS NOT NULL
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THEN SUBSTRING(q.text, r.statement_start_offset / 2 + 1,
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CASE WHEN r.statement_end_offset = -1 THEN 1000 ELSE (r.statement_end_offset - r.statement_start_offset) / 2 + 1 END)
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ELSE LEFT(q.text, 1000) END AS nvarchar(1000))
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FROM (SELECT st.session_id, at.transaction_id, MAX(at.name) AS name, MIN(at.transaction_begin_time) AS begin_time,
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ISNULL(SUM(dt.database_transaction_log_bytes_used), 0) AS used, ISNULL(SUM(dt.database_transaction_log_bytes_reserved), 0) AS reserved,
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MIN(DB_NAME(dt.database_id)) AS db, COUNT(DISTINCT dt.database_id) AS dbs
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FROM sys.dm_tran_session_transactions st
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JOIN sys.dm_tran_active_transactions at ON at.transaction_id = st.transaction_id
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LEFT JOIN sys.dm_tran_database_transactions dt ON dt.transaction_id = st.transaction_id AND dt.database_id <> 32767
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GROUP BY st.session_id, at.transaction_id) t
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JOIN sys.dm_exec_sessions s ON s.session_id = t.session_id
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OUTER APPLY (SELECT TOP 1 x.sql_handle, x.statement_start_offset, x.statement_end_offset, x.wait_type FROM sys.dm_exec_requests x
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WHERE x.session_id = t.session_id ORDER BY x.request_id) r
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OUTER APPLY (SELECT TOP 1 c.most_recent_sql_handle FROM sys.dm_exec_connections c WHERE c.session_id = t.session_id) c
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OUTER APPLY sys.dm_exec_sql_text(COALESCE(r.sql_handle, c.most_recent_sql_handle)) q
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WHERE s.is_user_process = 1 AND s.session_id <> @@SPID AND (s.program_name IS NULL OR s.program_name NOT LIKE N'SQLInsight Pro%') AND t.begin_time IS NOT NULL
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ORDER BY CASE WHEN t.used + t.reserved >= 1073741824 THEN 0 ELSE 1 END, t.begin_time
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GO
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-- Variant: SQL Server 2005 og nyere (vist med standardgrænsen 15 minutter)
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-- Kilde: ActivityCollector.BuildLongRequestsSql
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-- Kode: src/SQLInsight.Collectors/Concurrency/ActivityCollector.cs : ActivityCollector.BuildLongRequestsSql(15) = LongRequestsSql udfyldt
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SELECT TOP 50 r.session_id, DATEADD(minute, DATEDIFF(minute, GETDATE(), GETUTCDATE()), r.start_time), r.total_elapsed_time, r.command, r.status,
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r.wait_type, r.wait_time, DB_NAME(r.database_id), s.login_name, s.host_name, s.program_name, r.blocking_session_id,
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CAST(SUBSTRING(q.text, r.statement_start_offset / 2 + 1,
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CASE WHEN r.statement_end_offset = -1 THEN 1000 ELSE (r.statement_end_offset - r.statement_start_offset) / 2 + 1 END) AS nvarchar(1000))
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FROM sys.dm_exec_requests r
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JOIN sys.dm_exec_sessions s ON s.session_id = r.session_id
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OUTER APPLY sys.dm_exec_sql_text(r.sql_handle) q
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WHERE s.is_user_process = 1 AND s.session_id <> @@SPID AND (s.program_name IS NULL OR s.program_name NOT LIKE N'SQLInsight Pro%') AND r.total_elapsed_time > 900000 AND r.percent_complete = 0
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ORDER BY r.total_elapsed_time DESC
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GO
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