lishijun121910 opened a new issue #7233: URL: https://github.com/apache/shardingsphere/issues/7233
#7229 # Which version of ShardingSphere did you use? 4.1.0 ### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy? ShardingSphere-JDBC ### Expected behavior When master node failed, write operation all failed because timeout, now change datasouce by zookeeper, sharding-jdbc receives datasource and rule changeevent , do write operations on new master, and service recover. ### Actual behavior hikari pool shutting down and no response on datasource and rule changeevent, stop all write operations and try again, shardingjdbc reload local configurations , not latest configurations in config-center. ### Reason analyze (If you can) no idea. ### Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc. 1.initial configuration :  2. start write operations 3. kill master node :ds0 4. write operations all fail:  5. stop write operations 6. update master-slave rules on sharding-ui, use ds1 as new master:  7. not working, still load local configurations: 15:30:30.064 INFO [tor-TreeCache-3] o.a.s.core.log.ConfigurationLogger - ShardingRuleConfiguration: masterSlaveRules: ms: loadBalanceAlgorithmType: ROUND_ROBIN masterDataSourceName: ds0 name: ms slaveDataSourceNames: - ds1 - ds2 tables: T_MERCHANT: actualDataNodes: ms.T_MERCHANT${0..63} logicTable: T_MERCHANT 15:30:30.064 INFO [tor-TreeCache-3] o.a.s.core.log.ConfigurationLogger - Properties: sql.show: 'false' 15:30:30.065 INFO [tor-TreeCache-3] ShardingSphere-metadata - Loading 1 logic tables' meta data. 15:30:30.065 ERROR [tor-TreeCache-3] c.g.common.eventbus.EventBus.default - Exception thrown by subscrib er method renew(org.apache.shardingsphere.orchestration.core.common.event.DataSourceChangedEvent) on sub scriber org.apache.shardingsphere.shardingjdbc.orchestration.internal.datasource.OrchestrationShardingDa taSource@51bf5add when dispatching event: org.apache.shardingsphere.orchestration.core.common.event.Data SourceChangedEvent@20a38bee java.lang.NullPointerException: null at org.apache.shardingsphere.core.metadata.ShardingMetaDataLoader.load(ShardingMetaDataLoader.java:83) at org.apache.shardingsphere.core.metadata.ShardingMetaDataLoader.loadShardingSchemaMetaData(ShardingMetaDataLoader.java:134) at org.apache.shardingsphere.core.metadata.ShardingMetaDataLoader.load(ShardingMetaDataLoader.java:125) at org.apache.shardingsphere.shardingjdbc.jdbc.core.context.ShardingRuntimeContext.loadSchemaMetaData(ShardingRuntimeContext.java:65) at org.apache.shardingsphere.shardingjdbc.jdbc.core.context.MultipleDataSourcesRuntimeContext.createMetaData(MultipleDataSourcesRuntimeContext.java:57) at org.apache.shardingsphere.shardingjdbc.jdbc.core.context.MultipleDataSourcesRuntimeContext.<init>(MultipleDataSourcesRuntimeContext.java:51) at org.apache.shardingsphere.shardingjdbc.jdbc.core.context.ShardingRuntimeContext.<init>(ShardingRuntimeContext.java:49) at org.apache.shardingsphere.shardingjdbc.jdbc.core.datasource.ShardingDataSource.<init>(ShardingDataSource.java:54) at org.apache.shardingsphere.shardingjdbc.orchestration.internal.datasource.OrchestrationShardingDataSource.renew(OrchestrationShardingDataSource.java:104) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:95) at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:154) at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:80) at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:456) at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:76) at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:119) at com.google.common.eventbus.EventBus.post(EventBus.java:215) at org.apache.shardingsphere.orchestration.core.common.listener.PostShardingConfigCenterEventListener.lambda$watch$0(PostShardingConfigCenterEventListener.java:54) at org.apache.shardingsphere.orchestration.center.instance.CuratorZookeeperCenterRepository.lambda$watch$1(CuratorZookeeperCenterRepository.java:225) at org.apache.curator.framework.recipes.cache.TreeCache$2.apply(TreeCache.java:732) at org.apache.curator.framework.recipes.cache.TreeCache$2.apply(TreeCache.java:726) at org.apache.curator.framework.listen.ListenerContainer$1.run(ListenerContainer.java:93) at com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute(MoreExecutors.java:310) at org.apache.curator.framework.listen.ListenerContainer.forEach(ListenerContainer.java:85) at org.apache.curator.framework.recipes.cache.TreeCache.callListeners(TreeCache.java:725) at org.apache.curator.framework.recipes.cache.TreeCache.access$1400(TreeCache.java:71) at org.apache.curator.framework.recipes.cache.TreeCache$4.run(TreeCache.java:843) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) ### Example codes for reproduce this issue (such as a github link). ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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