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https://issues.apache.org/jira/browse/HBASE-21149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16652062#comment-16652062
]
Vladimir Rodionov commented on HBASE-21149:
-------------------------------------------
{quote}
The fix is to avoid multiple files in one DistCp session.
{quote}
[[email protected]], I do not think that this is the fix. DistCp is supposed
to copy multiple files and directories at once, not one by one. Either
something is deeply broken in DistCp post 3.0 or we have B&R serious issue. We
need RCA.
> TestIncrementalBackupWithBulkLoad may fail due to file copy failure
> -------------------------------------------------------------------
>
> Key: HBASE-21149
> URL: https://issues.apache.org/jira/browse/HBASE-21149
> Project: HBase
> Issue Type: Test
> Components: backup&restore
> Reporter: Ted Yu
> Assignee: Ted Yu
> Priority: Major
> Fix For: 3.0.0
>
> Attachments: 21149.v2.txt, HBASE-21149-v1.patch,
> testIncrementalBackupWithBulkLoad-output.txt
>
>
> From
> https://builds.apache.org/job/HBase%20Nightly/job/master/471/testReport/junit/org.apache.hadoop.hbase.backup/TestIncrementalBackupWithBulkLoad/TestIncBackupDeleteTable/
> :
> {code}
> 2018-09-03 11:54:30,526 ERROR [Time-limited test]
> impl.TableBackupClient(235): Unexpected Exception : Failed copy from
> hdfs://localhost:53075/user/jenkins/test-data/ecd40bd0-cb93-91e0-90b5-7bfd5bb2c566/data/default/test-1535975627781/773f5709b645b46bd3840f9cfb549c5a/f/0f626c66493649daaf84057b8dd71a30_SeqId_205_,hdfs://localhost:53075/user/jenkins/test-data/ecd40bd0-cb93-91e0-90b5-7bfd5bb2c566/data/default/test-1535975627781/773f5709b645b46bd3840f9cfb549c5a/f/ad8df6415bd9459d9b3df76c588d79df_SeqId_205_
> to hdfs://localhost:53075/backupUT/backup_1535975655488
> java.io.IOException: Failed copy from
> hdfs://localhost:53075/user/jenkins/test-data/ecd40bd0-cb93-91e0-90b5-7bfd5bb2c566/data/default/test-1535975627781/773f5709b645b46bd3840f9cfb549c5a/f/0f626c66493649daaf84057b8dd71a30_SeqId_205_,hdfs://localhost:53075/user/jenkins/test-data/ecd40bd0-cb93-91e0-90b5-7bfd5bb2c566/data/default/test-1535975627781/773f5709b645b46bd3840f9cfb549c5a/f/ad8df6415bd9459d9b3df76c588d79df_SeqId_205_
> to hdfs://localhost:53075/backupUT/backup_1535975655488
> at
> org.apache.hadoop.hbase.backup.impl.IncrementalTableBackupClient.incrementalCopyHFiles(IncrementalTableBackupClient.java:351)
> at
> org.apache.hadoop.hbase.backup.impl.IncrementalTableBackupClient.copyBulkLoadedFiles(IncrementalTableBackupClient.java:219)
> at
> org.apache.hadoop.hbase.backup.impl.IncrementalTableBackupClient.handleBulkLoad(IncrementalTableBackupClient.java:198)
> at
> org.apache.hadoop.hbase.backup.impl.IncrementalTableBackupClient.execute(IncrementalTableBackupClient.java:320)
> at
> org.apache.hadoop.hbase.backup.impl.BackupAdminImpl.backupTables(BackupAdminImpl.java:605)
> at
> org.apache.hadoop.hbase.backup.TestIncrementalBackupWithBulkLoad.TestIncBackupDeleteTable(TestIncrementalBackupWithBulkLoad.java:104)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> {code}
> However, some part of the test output was lost:
> {code}
> 2018-09-03 11:53:36,793 DEBUG [RS:0;765c9ca5ea28:36357] regions
> ...[truncated 398396 chars]...
> 8)
> at
> org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> {code}
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