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[ISSUE #4274] skip master-select task when db num is 1 #4784

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[ISSUE #4274] skip master-select task when db num is 1 #4784

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6 changes: 5 additions & 1 deletion ...ava/com/alibaba/nacos/config/server/service/datasource/ExternalDataSourceServiceImpl.java
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Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,8 @@ public class ExternalDataSourceServiceImpl implements DataSourceService {

private static final int TRANSACTION_QUERY_TIMEOUT = 5;

private static final int DB_MASTER_SLEECT_THRESHOLD = 1;

private static final String DB_LOAD_ERROR_MSG = "[db-load-error]load jdbc.properties error";

private List<HikariDataSource> dataSourceList = new ArrayList<>();
Expand Down Expand Up @@ -107,7 +109,9 @@ public void init() {
throw new RuntimeException(DB_LOAD_ERROR_MSG);
}

ConfigExecutor.scheduleConfigTask(new SelectMasterTask(), 10, 10, TimeUnit.SECONDS);
if (this.dataSourceList.size() > DB_MASTER_SLEECT_THRESHOLD){
ConfigExecutor.scheduleConfigTask(new SelectMasterTask(), 10, 10, TimeUnit.SECONDS);
}
ConfigExecutor.scheduleConfigTask(new CheckDbHealthTask(), 10, 10, TimeUnit.SECONDS);
}
}
Expand Down