change default batch size

pingcap · Nov 22, 2018 · 1c52758 · 1c52758
1 parent 3b2135e
commit 1c52758
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Showing 2 changed files with 2 additions and 1 deletion.
diff --git a/session/session.go b/session/session.go
@@ -1326,6 +1326,7 @@ const loadCommonGlobalVarsSQL = "select HIGH_PRIORITY * from mysql.global_variab
 	variable.TiDBBackoffLockFast + quoteCommaQuote +
 	variable.TiDBConstraintCheckInPlace + quoteCommaQuote +
 	variable.TiDBDDLReorgWorkerCount + quoteCommaQuote +
+	variable.TiDBDDLReorgBatchSize + quoteCommaQuote +
 	variable.TiDBOptInSubqToJoinAndAgg + quoteCommaQuote +
 	variable.TiDBDistSQLScanConcurrency + quoteCommaQuote +
 	variable.TiDBMaxChunkSize + quoteCommaQuote +

diff --git a/sessionctx/variable/tidb_vars.go b/sessionctx/variable/tidb_vars.go
@@ -257,7 +257,7 @@ const (
 	DefTiDBProjectionConcurrency     = 4
 	DefTiDBOptimizerSelectivityLevel = 0
 	DefTiDBDDLReorgWorkerCount       = 16
-	DefTiDBDDLReorgBatchSize         = 128
+	DefTiDBDDLReorgBatchSize         = 1024
 	DefTiDBHashAggPartialConcurrency = 4
 	DefTiDBHashAggFinalConcurrency   = 4
 	DefTiDBForcePriority             = mysql.NoPriority