sollhui opened a new pull request, #39242: URL: https://github.com/apache/doris/pull/39242
When execute `show routine load` throw exception: ``` java.util.ConcurrentModificationException: null at java.util.ArrayList.forEach(ArrayList.java:1252) ~[?:1.8.0_131] at org.apache.doris.load.routineload.RoutineLoadJob.getTasksShowInfo(RoutineLoadJob.java:1573) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.qe.ShowExecutor.handleShowRoutineLoadTask(ShowExecutor.java:1643) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.qe.ShowExecutor.execute(ShowExecutor.java:327) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.qe.StmtExecutor.handleShow(StmtExecutor.java:2643) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.qe.StmtExecutor.executeByLegacy(StmtExecutor.java:955) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:599) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:525) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.qe.ConnectProcessor.executeQuery(ConnectProcessor.java:328) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.qe.ConnectProcessor.handleQuery(ConnectProcessor.java:206) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.qe.MysqlConnectProcessor.handleQuery(MysqlConnectProcessor.java:272) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.qe.MysqlConnectProcessor.dispatch(MysqlConnectProcessor.java:300) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.qe.MysqlConnectProcessor.processOnce(MysqlConnectProcessor.java:358) ~[doris-fe.jar:1.2-SNAPSHOT] at org.apache.doris.mysql.ReadListener.lambda$handleEvent$0(ReadListener.java:52) ~[doris-fe.jar:1.2-SNAPSHOT] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[?:1.8.0_131] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[?:1.8.0_131] at java.lang.Thread.run(Thread.java:748) ~[?:1.8.0_131] ``` The reason is that the show routine load needs to traverse the routineLoadTaskInfoList, but at the same time it may be changed, such as when a transaction is committed at this moment. Therefore, a thread safe data structure is used to solve this problem. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
