Manual:$wgDebugDBTransactions

MediaWiki settings: $wgDebugDBTransactions
Introduced in version:	1.20.0 (r113487)(git #cfb8e9a2)
Removed in version:	still in use
Allowed values:	(boolean)
Default value:	false

Other settings: Alphabetical | By Function

Details

This setting enables additional database transaction lifecycle tracing in the debug output:

Transaction state changed from IDLE -> TRANS

Whenever transaction status is changed

IDLE

no database transaction is open

TRANS

a transaction has been open

ERROR

a transaction is in an error state

Example output:

Query trunk (15) (slave): BEGIN
Transaction state changed from IDLE -> TRANS
Query trunk (16) (slave): SELECT /* DatabasePostgres::schemaExists  */  1  
            FROM "pg_catalog"."pg_namespace"  WHERE nspname = 'mediawiki'  LIMIT 1  
Query trunk (17) (slave): SELECT /* DatabasePostgres::getSchemas  */ current_schemas(false)
Schema "mediawiki" already in the search path
Query trunk (18) (slave): COMMIT
Transaction state changed from TRANS -> IDLE

See also

• Database transactions

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