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https://issues.apache.org/jira/browse/HIVE-25522?focusedWorklogId=659287&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-659287
]
ASF GitHub Bot logged work on HIVE-25522:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 02/Oct/21 21:25
Start Date: 02/Oct/21 21:25
Worklog Time Spent: 10m
Work Description: szehon-ho commented on pull request #2647:
URL: https://github.com/apache/hive/pull/2647#issuecomment-932822502
Anyway i made a fix for the test, and try again. I guess it might still be
an issue if the user removes AcidMetricService from the configured services.
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Issue Time Tracking
-------------------
Worklog Id: (was: 659287)
Time Spent: 6h (was: 5h 50m)
> NullPointerException in TxnHandler
> ----------------------------------
>
> Key: HIVE-25522
> URL: https://issues.apache.org/jira/browse/HIVE-25522
> Project: Hive
> Issue Type: Improvement
> Components: Standalone Metastore
> Affects Versions: 3.1.2, 4.0.0
> Reporter: Szehon Ho
> Assignee: Szehon Ho
> Priority: Major
> Labels: pull-request-available
> Time Spent: 6h
> Remaining Estimate: 0h
>
> Environment: Using Iceberg on Hive 3.1.2 standalone metastore. Iceberg
> issues a lot of lock() calls for commits.
> We hit randomly a strange NPE that fails Iceberg commits.
> {noformat}
> 2021-08-21T11:08:05,665 ERROR [pool-6-thread-195]
> metastore.RetryingHMSHandler: java.lang.NullPointerException
> at
> org.apache.hadoop.hive.metastore.txn.TxnHandler.enqueueLockWithRetry(TxnHandler.java:1903)
> at
> org.apache.hadoop.hive.metastore.txn.TxnHandler.lock(TxnHandler.java:1827)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.lock(HiveMetaStore.java:7217)
> at jdk.internal.reflect.GeneratedMethodAccessor52.invoke(Unknown Source)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.invokeInternal(RetryingHMSHandler.java:147)
> at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:108)
> at com.sun.proxy.$Proxy27.lock(Unknown Source)
> at
> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$lock.getResult(ThriftHiveMetastore.java:18111)
> at
> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$lock.getResult(ThriftHiveMetastore.java:18095)
> at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
> at
> org.apache.hadoop.hive.metastore.TUGIBasedProcessor$1.run(TUGIBasedProcessor.java:111)
> at
> org.apache.hadoop.hive.metastore.TUGIBasedProcessor$1.run(TUGIBasedProcessor.java:107)
> at java.base/java.security.AccessController.doPrivileged(Native Method)
> at java.base/javax.security.auth.Subject.doAs(Subject.java:423)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
> at
> org.apache.hadoop.hive.metastore.TUGIBasedProcessor.process(TUGIBasedProcessor.java:119)
> at
> org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:286)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at java.base/java.lang.Thread.run(Thread.java:834)
> 2021-08-21T11:08:05,665 ERROR [pool-6-thread-195] server.TThreadPoolServer:
> Error occurred during processing of message.
> java.lang.NullPointerException: null
> at
> org.apache.hadoop.hive.metastore.txn.TxnHandler.enqueueLockWithRetry(TxnHandler.java:1903)
> ~[hive-exec-3.1.2.jar:3.1.2]
> at
> org.apache.hadoop.hive.metastore.txn.TxnHandler.lock(TxnHandler.java:1827)
> ~[hive-exec-3.1.2.jar:3.1.2]
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.lock(HiveMetaStore.java:7217)
> ~[hive-exec-3.1.2.jar:3.1.2]
> at jdk.internal.reflect.GeneratedMethodAccessor52.invoke(Unknown
> Source) ~[?:?]
> at
> jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> ~[?:?]
> at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
> at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.invokeInternal(RetryingHMSHandler.java:147)
> ~[hive-exec-3.1.2.jar:3.1.2]
> at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:108)
> ~[hive-exec-3.1.2.jar:3.1.2]
> at com.sun.proxy.$Proxy27.lock(Unknown Source) ~[?:?]
> at
> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$lock.getResult(ThriftHiveMetastore.java:18111)
> ~[hive-exec-3.1.2.jar:3.1.2]
> at
> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$lock.getResult(ThriftHiveMetastore.java:18095)
> ~[hive-exec-3.1.2.jar:3.1.2]
> at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
> ~[hive-exec-3.1.2.jar:3.1.2]
> at
> org.apache.hadoop.hive.metastore.TUGIBasedProcessor$1.run(TUGIBasedProcessor.java:111)
> ~[hive-exec-3.1.2.jar:3.1.2]
> at
> org.apache.hadoop.hive.metastore.TUGIBasedProcessor$1.run(TUGIBasedProcessor.java:107)
> ~[hive-exec-3.1.2.jar:3.1.2]
> at java.security.AccessController.doPrivileged(Native Method) ~[?:?]
> at javax.security.auth.Subject.doAs(Subject.java:423) ~[?:?]
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
> ~[hadoop-common-3.1.4.jar:?]
> at
> org.apache.hadoop.hive.metastore.TUGIBasedProcessor.process(TUGIBasedProcessor.java:119)
> ~[hive-exec-3.1.2.jar:3.1.2]
> at
> org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:286)
> [hive-exec-3.1.2.jar:3.1.2]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> [?:?]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> [?:?]
> at java.lang.Thread.run(Thread.java:834) [?:?]
> {noformat}
> It seems it's this line, though root cause is not deterined.
> https://github.com/apache/hive/blob/rel/release-3.1.2/standalone-metastore/src/main/java/org/apache/hadoop/hive/metastore/txn/TxnHandler.java#L1903
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