zhenglu8 opened a new issue, #17999: URL: https://github.com/apache/shardingsphere/issues/17999
## Bug Report **For English only**, other languages will not accept. Before report a bug, make sure you have: - Searched open and closed [GitHub issues](https://github.com/apache/shardingsphere/issues). - Read documentation: [ShardingSphere Doc](https://shardingsphere.apache.org/document/current/en/overview). Please pay attention on issues you submitted, because we maybe need more details. If no response anymore and we cannot reproduce it on current information, we will **close it**. Please answer these questions before submitting your issue. Thanks! ### Which version of ShardingSphere did you use? we find java version: java17, full_version=17.0.1 ShardingSphere-5.1.2-SNAPSHOT Commit ID: babecb70bd7210789b983087fbb82cc725bf857c Commit Message: Support parsing `CREATE CAST` in openGauss (#17986) Branch: master ### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy? ShardingSphere-Proxy ### Expected behavior no error ### Actual behavior ``` [ERROR] 2022-05-27 13:45:20.014 [Curator-SafeNotifyService-0] c.g.common.eventbus.EventBus.default - Exception thrown by subscriber method renew(org.apache.shardingsphere.mode.manager.cluster.coordinator.registry.status.storage.event.DisabledStateChangedEvent) on subscriber org.apache.shardingsphere.mode.manager.cluster.coordinator.ClusterContextManagerCoordinator@76b642aa when dispatching event: org.apache.shardingsphere.mode.manager.cluster.coordinator.registry.status.storage.event.DisabledStateChangedEvent@2b673c93 java.lang.NullPointerException: Cannot invoke "org.apache.shardingsphere.infra.metadata.database.ShardingSphereDatabase.getRuleMetaData()" because the return value of "java.util.Map.get(Object)" is null at org.apache.shardingsphere.mode.manager.cluster.coordinator.ClusterContextManagerCoordinator.renew(ClusterContextManagerCoordinator.java:182) at jdk.internal.reflect.GeneratedMethodAccessor81.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:87) at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:144) at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:72) at com.google.common.util.concurrent.DirectExecutor.execute(DirectExecutor.java:30) at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:67) at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:108) at com.google.common.eventbus.EventBus.post(EventBus.java:212) at java.base/java.util.Optional.ifPresent(Optional.java:178) at org.apache.shardingsphere.mode.manager.cluster.coordinator.registry.GovernanceWatcherFactory.lambda$watch$0(GovernanceWatcherFactory.java:55) at org.apache.shardingsphere.mode.repository.cluster.zookeeper.CuratorZookeeperRepository.lambda$watch$0(CuratorZookeeperRepository.java:240) at org.apache.curator.framework.recipes.cache.TreeCacheListenerWrapper.sendEvent(TreeCacheListenerWrapper.java:71) at org.apache.curator.framework.recipes.cache.TreeCacheListenerWrapper.event(TreeCacheListenerWrapper.java:48) at org.apache.curator.framework.recipes.cache.CuratorCacheListenerBuilderImpl$2.lambda$event$0(CuratorCacheListenerBuilderImpl.java:149) at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) at org.apache.curator.framework.recipes.cache.CuratorCacheListenerBuilderImpl$2.event(CuratorCacheListenerBuilderImpl.java:149) at org.apache.curator.framework.recipes.cache.CuratorCacheImpl.lambda$putStorage$6(CuratorCacheImpl.java:274) at org.apache.curator.framework.listen.MappingListenerManager.lambda$forEach$0(MappingListenerManager.java:92) at org.apache.curator.framework.listen.MappingListenerManager.forEach(MappingListenerManager.java:89) at org.apache.curator.framework.listen.StandardListenerManager.forEach(StandardListenerManager.java:89) at org.apache.curator.framework.recipes.cache.CuratorCacheImpl.lambda$callListeners$10(CuratorCacheImpl.java:293) at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1804) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:833) ``` ### Reason analyze (If you can) ### Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc. ``` ADD RESOURCE ds_0 ( URL="jdbc:mysql://192.168.10.18:33307/original_1?serverTimezone=UTC&useSSL=false", USER=root, PASSWORD=password ), ds_1 ( URL="jdbc:mysql://192.168.10.18:33307/original_2?serverTimezone=UTC&useSSL=false", USER=root, PASSWORD=password ); CREATE SHARDING TABLE RULE t_order( RESOURCES(ds_0,ds_1), SHARDING_COLUMN=order_id, TYPE(NAME=hash_mod,PROPERTIES("sharding-count"=4)), KEY_GENERATE_STRATEGY(COLUMN=order_id,TYPE(NAME=snowflake,PROPERTIES("worker-id"=123))) ), t_order_item( RESOURCES(ds_0,ds_1), SHARDING_COLUMN=order_id, TYPE(NAME=hash_mod,PROPERTIES("sharding-count"=4)), KEY_GENERATE_STRATEGY(COLUMN=order_id,TYPE(NAME=snowflake,PROPERTIES("worker-id"=123))) ); CREATE SHARDING BINDING TABLE RULES (t_order,t_order_item); ADD RESOURCE ds_3 ( URL="jdbc:mysql://192.168.10.18:33307/new_1?serverTimezone=UTC&useSSL=false", USER=root, PASSWORD=password ), ds_4 ( URL="jdbc:mysql://192.168.10.18:33307/new_2?serverTimezone=UTC&useSSL=false", USER=root, PASSWORD=password ), ds_5 ( URL="jdbc:mysql://192.168.10.18:33307/new_3?serverTimezone=UTC&useSSL=false", USER=root, PASSWORD=password ); ALTER SHARDING TABLE RULE t_order( RESOURCES(ds_3,ds_4,ds_5), SHARDING_COLUMN=order_id, TYPE(NAME=hash_mod,PROPERTIES("sharding-count"=6)), KEY_GENERATE_STRATEGY(COLUMN=order_id,TYPE(NAME=snowflake,PROPERTIES("worker-id"=123))) ), t_order_item( RESOURCES(ds_3,ds_4,ds_5), SHARDING_COLUMN=order_id, TYPE(NAME=hash_mod,PROPERTIES("sharding-count"=6)), KEY_GENERATE_STRATEGY(COLUMN=order_id,TYPE(NAME=snowflake,PROPERTIES("worker-id"=123))) ); CHECK SCALING XXX BY type(name=CRC32_MATCH); ERROR 1997 (C1997): Runtime exception: [Count check failed for table 't_order'] ``` ### 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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