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https://issues.apache.org/jira/browse/HIVE-24168?focusedWorklogId=491866&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-491866
]
ASF GitHub Bot logged work on HIVE-24168:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 28/Sep/20 08:21
Start Date: 28/Sep/20 08:21
Worklog Time Spent: 10m
Work Description: klcopp merged pull request #1501:
URL: https://github.com/apache/hive/pull/1501
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Issue Time Tracking
-------------------
Worklog Id: (was: 491866)
Time Spent: 1h 20m (was: 1h 10m)
> Disable hdfsEncryptionShims cache during query-based compaction
> ---------------------------------------------------------------
>
> Key: HIVE-24168
> URL: https://issues.apache.org/jira/browse/HIVE-24168
> Project: Hive
> Issue Type: Bug
> Reporter: Karen Coppage
> Assignee: Karen Coppage
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> Hive keeps a cache of encryption shims in SessionState (Map<URI,
> HadoopShims.HdfsEncryptionShim> hdfsEncryptionShims). Each encryption shim in
> the cache stores a FileSystem object.
> After compaction where the session user is not the same user as the owner of
> the partition/table directory, we close all FileSystem objects associated
> with the user running the compaction, possibly closing an FS stored in the
> encryption shim cache. The next time query-based compaction is run on a
> table/partition owned by the same user, compaction will fail in MoveTask[1]
> since the FileSystem stored in the cache was closed.
> EDIT: This change makes it optional to disable the cache; and disables the
> cache during query-based compaction.
> Workaround: set fs.hdfs.impl.disable.cache to true. Probably comes with
> other side effects, at least a slowdown.
> [1] Error:
> {code:java}
> 2020-09-08 11:23:50,170 ERROR org.apache.hadoop.hive.ql.Driver:
> [rncdpdev-2.fyre.ibm.com-27]: FAILED: Execution Error, return code 1 from
> org.apache.hadoop.hive.ql.exec.MoveTask. java.io.IOException: Filesystem
> closed. org.apache.hadoop.hive.ql.metadata.HiveException:
> java.io.IOException: Filesystem closed
> at org.apache.hadoop.hive.ql.metadata.Hive.needToCopy(Hive.java:4637)
> at org.apache.hadoop.hive.ql.metadata.Hive.copyFiles(Hive.java:4147)
> at org.apache.hadoop.hive.ql.metadata.Hive.copyFiles(Hive.java:4694)
> at org.apache.hadoop.hive.ql.metadata.Hive.loadTable(Hive.java:3120)
> at org.apache.hadoop.hive.ql.exec.MoveTask.execute(MoveTask.java:423)
> at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:213)
> at
> org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:105)
> at org.apache.hadoop.hive.ql.Executor.launchTask(Executor.java:359)
> at org.apache.hadoop.hive.ql.Executor.launchTasks(Executor.java:330)
> at org.apache.hadoop.hive.ql.Executor.runTasks(Executor.java:246)
> at org.apache.hadoop.hive.ql.Executor.execute(Executor.java:109)
> at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:721)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:488)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:477)
> at
> org.apache.hadoop.hive.ql.DriverUtils.runOnDriver(DriverUtils.java:70)
> at
> org.apache.hadoop.hive.ql.txn.compactor.QueryCompactor.runCompactionQueries(QueryCompactor.java:116)
> at
> org.apache.hadoop.hive.ql.txn.compactor.MmMajorQueryCompactor.runCompaction(MmMajorQueryCompactor.java:72)
> at
> org.apache.hadoop.hive.ql.txn.compactor.CompactorMR.run(CompactorMR.java:232)
> at org.apache.hadoop.hive.ql.txn.compactor.Worker$1.run(Worker.java:221)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1876)
> at org.apache.hadoop.hive.ql.txn.compactor.Worker.run(Worker.java:218)
> {code}
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