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statistics: ease the impact of stats feedback on cluster (#15503) #18769

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statistics: ease the impact of stats feedback on cluster (#15503) #18769

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21 changes: 21 additions & 0 deletions config/config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -331,6 +331,7 @@ var defaultConf = Config{
MetricsInterval: 15,
},
Performance: Performance{
<<<<<<< HEAD
TCPKeepAlive: true,
CrossJoin: true,
StatsLease: "3s",
Expand All @@ -347,6 +348,26 @@ var defaultConf = Config{
XProtocol: XProtocol{
XHost: "",
XPort: 0,
=======
MaxMemory: 0,
ServerMemoryQuota: 0,
TCPKeepAlive: true,
CrossJoin: true,
StatsLease: "3s",
RunAutoAnalyze: true,
StmtCountLimit: 5000,
FeedbackProbability: 0.05,
QueryFeedbackLimit: 512,
PseudoEstimateRatio: 0.8,
ForcePriority: "NO_PRIORITY",
BindInfoLease: "3s",
TxnEntrySizeLimit: DefTxnEntrySizeLimit,
TxnTotalSizeLimit: DefTxnTotalSizeLimit,
DistinctAggPushDown: false,
CommitterConcurrency: 16,
MaxTxnTTL: 10 * 60 * 1000, // 10min
MemProfileInterval: "1m",
>>>>>>> a99fdc0... statistics: ease the impact of stats feedback on cluster (#15503)
},
ProxyProtocol: ProxyProtocol{
Networks: "",
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2 changes: 1 addition & 1 deletion config/config.toml.example
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Expand Up @@ -165,7 +165,7 @@ run-auto-analyze = true
feedback-probability = 0.05

# The max number of query feedback that cache in memory.
query-feedback-limit = 1024
query-feedback-limit = 512

# Pseudo stats will be used if the ratio between the modify count and
# row count in statistics of a table is greater than it.
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