peilinqian opened a new issue, #19061: URL: https://github.com/apache/shardingsphere/issues/19061
## 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: java8, full_version=1.8.0_282 ShardingSphere-5.1.3-SNAPSHOT Commit ID: 7c67365b394d2e3ac562329b550c135c31ea764d Commit Message: Avoid overhead of invoking method in Optional.orElse (#18921) Branch: 7c67365b394d2e3ac562329b550c135c31ea764d Build time: 2022-07-08T19:24:17+0800 ### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy? ShardingSphere-Proxy ### Expected behavior Configure multiple read-write splits，Operation is normal. ### Actual behavior Configure multiple read-write splits，Operation is abnormal. ### Reason analyze (If you can) ### Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc. 1.Configure multiple read-write splits 2.start sharding-proxy 3.sql execute readwrite_splitting_db=> create table t_rw(id int,c_id int,a int,b text); ERROR: java.lang.NullPointerException readwrite_splitting_db=> insert into t_rw values (1,1,10,'test1'),(1,2,10,'test1'),(2,2,20,'test2'), readwrite_splitting_db-> (3,3,10,'test3'),(4,4,40,'test4'),(5,5,50,'test5'); ERROR: java.lang.NullPointerException readwrite_splitting_db=> create index idx_rw on t_rw(id); ERROR: java.lang.NullPointerException readwrite_splitting_db=> select * from t_rw; ERROR: java.lang.NullPointerException **log information：** ``` [INFO ] 2022-07-12 15:14:17.201 [Connection-1-ThreadExecutor] ShardingSphere-SQL - Logic SQL: create table t_rw(id int,c_id int,a int,b text); [INFO ] 2022-07-12 15:14:17.201 [Connection-1-ThreadExecutor] ShardingSphere-SQL - SQLStatement: OpenGaussCreateTableStatement(ifNotExists=false) [INFO ] 2022-07-12 15:14:17.201 [Connection-1-ThreadExecutor] ShardingSphere-SQL - Actual SQL: write_ds ::: create table t_rw(id int,c_id int,a int,b text); [INFO ] 2022-07-12 15:14:17.220 [HikariPool-8 connection adder] o.o.core.v3.ConnectionFactoryImpl - [41684e81-fbb0-4289-8704-6724091b2dbd] Try to connect. IP: 10.29.180.204:15000 [INFO ] 2022-07-12 15:14:17.262 [HikariPool-8 connection adder] o.o.core.v3.ConnectionFactoryImpl - [7.212.123.28:33828/10.29.180.204:15000] Connection is established. ID: 41684e81-fbb0-4289-8704-6724091b2dbd [INFO ] 2022-07-12 15:14:17.268 [HikariPool-8 connection adder] o.o.core.v3.ConnectionFactoryImpl - Connect complete. ID: 41684e81-fbb0-4289-8704-6724091b2dbd [ERROR] 2022-07-12 15:14:18.109 [Connection-1-ThreadExecutor] o.a.s.p.f.c.CommandExecutorTask - Exception occur: java.lang.NullPointerException: null at org.apache.shardingsphere.infra.context.refresher.type.CreateTableStatementSchemaRefresher.refresh(CreateTableStatementSchemaRefresher.java:61) at org.apache.shardingsphere.infra.context.refresher.type.CreateTableStatementSchemaRefresher.refresh(CreateTableStatementSchemaRefresher.java:45) at org.apache.shardingsphere.infra.context.refresher.MetaDataRefreshEngine.refresh(MetaDataRefreshEngine.java:74) at org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.refreshMetaData(DatabaseCommunicationEngine.java:105) at org.apache.shardingsphere.proxy.backend.communication.jdbc.JDBCDatabaseCommunicationEngine.execute(JDBCDatabaseCommunicationEngine.java:139) at org.apache.shardingsphere.proxy.backend.communication.jdbc.JDBCDatabaseCommunicationEngine.execute(JDBCDatabaseCommunicationEngine.java:71) at org.apache.shardingsphere.proxy.backend.text.data.impl.SchemaAssignedDatabaseBackendHandler.execute(SchemaAssignedDatabaseBackendHandler.java:63) at org.apache.shardingsphere.proxy.frontend.opengauss.command.query.simple.OpenGaussComQueryExecutor.execute(OpenGaussComQueryExecutor.java:76) at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:108) at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:78) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) [ERROR] 2022-07-12 15:14:18.144 [Connection-1-ThreadExecutor] o.a.s.p.f.c.CommandExecutorTask - Exception occur: java.lang.NullPointerException: null at org.apache.shardingsphere.infra.binder.statement.dml.InsertStatementContext.<init>(InsertStatementContext.java:95) at org.apache.shardingsphere.infra.binder.SQLStatementContextFactory.getDMLStatementContext(SQLStatementContextFactory.java:169) at org.apache.shardingsphere.infra.binder.SQLStatementContextFactory.newInstance(SQLStatementContextFactory.java:143) at org.apache.shardingsphere.infra.binder.SQLStatementContextFactory.newInstance(SQLStatementContextFactory.java:128) at org.apache.shardingsphere.proxy.backend.text.TextProtocolBackendHandlerFactory.newInstance(TextProtocolBackendHandlerFactory.java:103) at org.apache.shardingsphere.proxy.frontend.opengauss.command.query.simple.OpenGaussComQueryExecutor.<init>(OpenGaussComQueryExecutor.java:70) at org.apache.shardingsphere.proxy.frontend.opengauss.command.OpenGaussCommandExecutorFactory.getCommandExecutor(OpenGaussCommandExecutorFactory.java:114) at org.apache.shardingsphere.proxy.frontend.opengauss.command.OpenGaussCommandExecutorFactory.newInstance(OpenGaussCommandExecutorFactory.java:76) at org.apache.shardingsphere.proxy.frontend.opengauss.command.OpenGaussCommandExecuteEngine.getCommandExecutor(OpenGaussCommandExecuteEngine.java:62) at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:106) at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:78) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) [INFO ] 2022-07-12 15:14:18.151 [Connection-1-ThreadExecutor] ShardingSphere-SQL - Logic SQL: create index idx_rw on t_rw(id); [INFO ] 2022-07-12 15:14:18.151 [Connection-1-ThreadExecutor] ShardingSphere-SQL - SQLStatement: OpenGaussCreateIndexStatement(generatedIndexStartIndex=Optional.empty) [INFO ] 2022-07-12 15:14:18.151 [Connection-1-ThreadExecutor] ShardingSphere-SQL - Actual SQL: write_ds ::: create index idx_rw on t_rw(id); [ERROR] 2022-07-12 15:14:18.164 [Connection-1-ThreadExecutor] o.a.s.p.f.c.CommandExecutorTask - Exception occur: java.lang.NullPointerException: null at org.apache.shardingsphere.infra.context.refresher.type.CreateIndexStatementSchemaRefresher.refresh(CreateIndexStatementSchemaRefresher.java:53) at org.apache.shardingsphere.infra.context.refresher.type.CreateIndexStatementSchemaRefresher.refresh(CreateIndexStatementSchemaRefresher.java:40) at org.apache.shardingsphere.infra.context.refresher.MetaDataRefreshEngine.refresh(MetaDataRefreshEngine.java:74) at org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.refreshMetaData(DatabaseCommunicationEngine.java:105) at org.apache.shardingsphere.proxy.backend.communication.jdbc.JDBCDatabaseCommunicationEngine.execute(JDBCDatabaseCommunicationEngine.java:139) at org.apache.shardingsphere.proxy.backend.communication.jdbc.JDBCDatabaseCommunicationEngine.execute(JDBCDatabaseCommunicationEngine.java:71) at org.apache.shardingsphere.proxy.backend.text.data.impl.SchemaAssignedDatabaseBackendHandler.execute(SchemaAssignedDatabaseBackendHandler.java:63) at org.apache.shardingsphere.proxy.frontend.opengauss.command.query.simple.OpenGaussComQueryExecutor.execute(OpenGaussComQueryExecutor.java:76) at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:108) at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:78) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) [ERROR] 2022-07-12 15:14:18.170 [Connection-1-ThreadExecutor] o.a.s.p.f.c.CommandExecutorTask - Exception occur: java.lang.NullPointerException: null at org.apache.shardingsphere.infra.binder.segment.select.projection.engine.ProjectionEngine.getShorthandColumnsFromSimpleTableSegment(ProjectionEngine.java:163) at org.apache.shardingsphere.infra.binder.segment.select.projection.engine.ProjectionEngine.createProjection(ProjectionEngine.java:117) at org.apache.shardingsphere.infra.binder.segment.select.projection.engine.ProjectionEngine.createProjection(ProjectionEngine.java:82) at org.apache.shardingsphere.infra.binder.segment.select.projection.engine.ProjectionsContextEngine.getProjections(ProjectionsContextEngine.java:77) at org.apache.shardingsphere.infra.binder.segment.select.projection.engine.ProjectionsContextEngine.createProjectionsContext(ProjectionsContextEngine.java:67) at org.apache.shardingsphere.infra.binder.statement.dml.SelectStatementContext.<init>(SelectStatementContext.java:116) at org.apache.shardingsphere.infra.binder.SQLStatementContextFactory.getDMLStatementContext(SQLStatementContextFactory.java:160) at org.apache.shardingsphere.infra.binder.SQLStatementContextFactory.newInstance(SQLStatementContextFactory.java:143) at org.apache.shardingsphere.infra.binder.SQLStatementContextFactory.newInstance(SQLStatementContextFactory.java:128) at org.apache.shardingsphere.proxy.backend.text.TextProtocolBackendHandlerFactory.newInstance(TextProtocolBackendHandlerFactory.java:103) at org.apache.shardingsphere.proxy.frontend.opengauss.command.query.simple.OpenGaussComQueryExecutor.<init>(OpenGaussComQueryExecutor.java:70) at org.apache.shardingsphere.proxy.frontend.opengauss.command.OpenGaussCommandExecutorFactory.getCommandExecutor(OpenGaussCommandExecutorFactory.java:114) at org.apache.shardingsphere.proxy.frontend.opengauss.command.OpenGaussCommandExecutorFactory.newInstance(OpenGaussCommandExecutorFactory.java:76) at org.apache.shardingsphere.proxy.frontend.opengauss.command.OpenGaussCommandExecuteEngine.getCommandExecutor(OpenGaussCommandExecuteEngine.java:62) at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:106) at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:78) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) ``` ### Example codes for reproduce this issue (such as a github link). 1、config-readwrite-splitting.yaml ``` databaseName: readwrite_splitting_db dataSources: write_ds: connectionTimeoutMilliseconds: 30000 idleTimeoutMilliseconds: 60000 maxLifetimeMilliseconds: 1800000 maxPoolSize: 260 minPoolSize: 1 password: Huawei@123 url: jdbc:opengauss://10.29.180.204:15000/test_split?batchMode=on username: tpccuser read_ds_0: connectionTimeoutMilliseconds: 30000 idleTimeoutMilliseconds: 60000 maxLifetimeMilliseconds: 1800000 maxPoolSize: 260 minPoolSize: 1 password: Huawei@123 url: jdbc:opengauss://10.28.13.92:15000/test_split?batchMode=on username: tpccuser read_ds_1: connectionTimeoutMilliseconds: 30000 idleTimeoutMilliseconds: 60000 maxLifetimeMilliseconds: 1800000 maxPoolSize: 260 minPoolSize: 1 password: Huawei@123 url: jdbc:opengauss://7.212.123.28:15000/test_split?batchMode=on username: tpccuser rules: - !READWRITE_SPLITTING dataSources: readwrite_ds: staticStrategy: writeDataSourceName: write_ds readDataSourceNames: - read_ds_0 - read_ds_1 loadBalancerName: random loadBalancers: random: type: FIXED_REPLICA_ROUND_ROBIN ``` 2、config-readwrite-splitting1.yaml ``` databaseName: readwrite_splitting_db1 dataSources: write_ds: connectionTimeoutMilliseconds: 30000 idleTimeoutMilliseconds: 60000 maxLifetimeMilliseconds: 1800000 maxPoolSize: 260 minPoolSize: 1 password: Test@123 url: jdbc:opengauss://IP1:15000/test_split1?batchMode=on username: tpccuser read_ds_0: connectionTimeoutMilliseconds: 30000 idleTimeoutMilliseconds: 60000 maxLifetimeMilliseconds: 1800000 maxPoolSize: 260 minPoolSize: 1 password: Test@123 url: jdbc:opengauss://IP2:15000/test_split1?batchMode=on username: tpccuser read_ds_1: connectionTimeoutMilliseconds: 30000 idleTimeoutMilliseconds: 60000 maxLifetimeMilliseconds: 1800000 maxPoolSize: 260 minPoolSize: 1 password: Test@123 url: jdbc:opengauss://IP3:15000/test_split1?batchMode=on username: tpccuser rules: - !READWRITE_SPLITTING dataSources: readwrite_ds: staticStrategy: writeDataSourceName: write_ds readDataSourceNames: - read_ds_0 - read_ds_1 loadBalancerName: random loadBalancers: random: type: FIXED_REPLICA_RANDOM ``` -- This is an automated message from the Apache Git Service. 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