From 1c52758aeb9b79b192b608191e93828f02fd7be6 Mon Sep 17 00:00:00 2001 From: crazycs Date: Thu, 22 Nov 2018 19:09:27 +0800 Subject: [PATCH] change default batch size --- session/session.go | 1 + sessionctx/variable/tidb_vars.go | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/session/session.go b/session/session.go index 8d95b61b816ac..a27b80d12be0b 100644 --- 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 index faf38cf0fa6f1..444c6bd98e626 100644 --- 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