?報錯內容如下：

FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask 22/06/29 15:53:55 ERROR ql.Driver: [HiveServer2-Background-Pool: Thread-21812]: FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask 22/06/29 15:53:55 ERROR ql.Driver: [HiveServer2-Background-Pool: Thread-21812]: FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask MapReduce Jobs Launched: Stage-Stage-11: Map: 1 Reduce: 3 Cumulative CPU: 48.01 sec HDFS Read: 193045173 HDFS Write: 18105336 HDFS EC Read: 0 SUCCESS Stage-Stage-71: HDFS Read: 0 HDFS Write: 0 HDFS EC Read: 0 SUCCESS Stage-Stage-13: Map: 2 Reduce: 1 Cumulative CPU: 25.83 sec HDFS Read: 55898079 HDFS Write: 96 HDFS EC Read: 0 SUCCESS Stage-Stage-65: Map: 1 Cumulative CPU: 12.02 sec HDFS Read: 21042 HDFS Write: 96 HDFS EC Read: 0 SUCCESS Stage-Stage-63: Map: 1 Cumulative CPU: 98.79 sec HDFS Read: 0 HDFS Write: 0 HDFS EC Read: 0 FAIL Total MapReduce CPU Time Spent: 3 minutes 4 seconds 650 msec 22/06/29 15:53:55 ERROR operation.Operation: [HiveServer2-Background-Pool: Thread-21812]: Error running hive query: org.apache.hive.service.cli.HiveSQLException: Error while processing statement: FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTaskat org.apache.hive.service.cli.operation.Operation.toSQLException(Operation.java:329) ~[hive-service-2.1.1-cdh6.3.0.jar:2.1.1-cdh6.3.0]at org.apache.hive.service.cli.operation.SQLOperation.runQuery(SQLOperation.java:258) ~[hive-service-2.1.1-cdh6.3.0.jar:2.1.1-cdh6.3.0]at org.apache.hive.service.cli.operation.SQLOperation.access$600(SQLOperation.java:92) ~[hive-service-2.1.1-cdh6.3.0.jar:2.1.1-cdh6.3.0]at org.apache.hive.service.cli.operation.SQLOperation$BackgroundWork$1.run(SQLOperation.java:345) [hive-service-2.1.1-cdh6.3.0.jar:2.1.1-cdh6.3.0]at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_41]at javax.security.auth.Subject.doAs(Subject.java:422) [?:1.8.0_41]at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875) [hadoop-common-3.0.0-cdh6.3.0.jar:?]at org.apache.hive.service.cli.operation.SQLOperation$BackgroundWork.run(SQLOperation.java:357) [hive-service-2.1.1-cdh6.3.0.jar:2.1.1-cdh6.3.0]at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_41]at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_41]at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_41]at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_41]at java.lang.Thread.run(Thread.java:745) [?:1.8.0_41] 22/06/29 15:53:55 ERROR operation.Operation: [HiveServer2-Background-Pool: Thread-21812]: Error running hive query: org.apache.hive.service.cli.HiveSQLException: Error while processing statement: FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTaskat org.apache.hive.service.cli.operation.Operation.toSQLException(Operation.java:329) ~[hive-service-2.1.1-cdh6.3.0.jar:2.1.1-cdh6.3.0]at org.apache.hive.service.cli.operation.SQLOperation.runQuery(SQLOperation.java:258) ~[hive-service-2.1.1-cdh6.3.0.jar:2.1.1-cdh6.3.0]at org.apache.hive.service.cli.operation.SQLOperation.access$600(SQLOperation.java:92) ~[hive-service-2.1.1-cdh6.3.0.jar:2.1.1-cdh6.3.0]at org.apache.hive.service.cli.operation.SQLOperation$BackgroundWork$1.run(SQLOperation.java:345) [hive-service-2.1.1-cdh6.3.0.jar:2.1.1-cdh6.3.0]at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_41]at javax.security.auth.Subject.doAs(Subject.java:422) [?:1.8.0_41]at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875) [hadoop-common-3.0.0-cdh6.3.0.jar:?]at org.apache.hive.service.cli.operation.SQLOperation$BackgroundWork.run(SQLOperation.java:357) [hive-service-2.1.1-cdh6.3.0.jar:2.1.1-cdh6.3.0]at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_41]at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_41]at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_41]at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_41]at java.lang.Thread.run(Thread.java:745) [?:1.8.0_41] OK

錯誤問題追蹤后，根本原因是map讀取任務時候內存不夠，調大map內存

set mapreduce.map.memory.mb=4096; --設置map內存 set yarn.scheduler.minimum-allocation-mb=4096; --設置yarn容器最小內存 set mapreduce.map.java.opts=-Xmx3600m; --如果有gc異常可以設置該參數

總結

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