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config: reduce default table-concurrency from 8 to 6 #175

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Apr 30, 2019
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config: reduce default table-concurrency from 8 to 6 #175

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2 changes: 1 addition & 1 deletion lightning/config/config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -156,7 +156,7 @@ func NewConfig() *Config {
return &Config{
App: Lightning{
RegionConcurrency: runtime.NumCPU(),
TableConcurrency: 8,
TableConcurrency: 6,
IndexConcurrency: 2,
IOConcurrency: 5,
CheckRequirements: true,
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2 changes: 1 addition & 1 deletion tidb-lightning.toml
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Expand Up @@ -10,7 +10,7 @@ pprof-port = 8289
# index-concurrency controls the maximum handled index concurrently while reading Mydumper SQL files. It can affect the tikv-importer disk usage.
index-concurrency = 2
# table-concurrency controls the maximum handled tables concurrently while reading Mydumper SQL files. It can affect the tikv-importer memory usage.
table-concurrency = 8
table-concurrency = 6
# region-concurrency changes the concurrency number of data. It is set to the number of logical CPU cores by default and needs no configuration.
# In mixed configuration, you can set it to 75% of the size of logical CPU cores.
# region-concurrency default to runtime.NumCPU()
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