[
https://issues.apache.org/jira/browse/SOLR-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14314649#comment-14314649
]
Varun Thacker commented on SOLR-6775:
-------------------------------------
Looking at one of the Jenkins here are the stack traces -
{code}
[junit4] ERROR 3.52s | TestReplicationHandlerBackup.doTestBackup <<<
[junit4] > Throwable #1: java.io.IOException: Could not remove the
following files (in the order of attempts):
[junit4] >
C:\Users\JenkinsSlave\workspace\Lucene-Solr-5.x-Windows\solr\build\solr-core\test\J0\temp\solr.handler.TestReplicationHandlerBackup
E514A9DF49C1148E-001\solr-instance-001\collection1:
java.nio.file.DirectoryNotEmptyException:
C:\Users\JenkinsSlave\workspace\Lucene-Solr-5.x-Windows\solr\build\solr-core\test\J0\temp\solr.handler.TestReplicationHandlerBackup
E514A9DF49C1148E-001\solr-instance-001\collection1
[junit4] >
C:\Users\JenkinsSlave\workspace\Lucene-Solr-5.x-Windows\solr\build\solr-core\test\J0\temp\solr.handler.TestReplicationHandlerBackup
E514A9DF49C1148E-001\solr-instance-001:
java.nio.file.DirectoryNotEmptyException:
C:\Users\JenkinsSlave\workspace\Lucene-Solr-5.x-Windows\solr\build\solr-core\test\J0\temp\solr.handler.TestReplicationHandlerBackup
E514A9DF49C1148E-001\solr-instance-001
[junit4] > at
__randomizedtesting.SeedInfo.seed([E514A9DF49C1148E:A49F89BA6E7FE7C1]:0)
[junit4] > at org.apache.lucene.util.IOUtils.rm(IOUtils.java:294)
[junit4] > at
org.apache.solr.handler.TestReplicationHandler$SolrInstance.tearDown(TestReplicationHandler.java:1509)
[junit4] > at
org.apache.solr.handler.TestReplicationHandlerBackup.tearDown(TestReplicationHandlerBackup.java:115)
[junit4] > at java.lang.Thread.run(Thread.java:745)
{code}
and
{code}
junit4] 2> NOTE: reproduce with: ant test
-Dtestcase=TestReplicationHandlerBackup -Dtests.method=testBackupOnCommit
-Dtests.seed=E514A9DF49C1148E -Dtests.slow=true -Dtests.locale=pt_PT
-Dtests.timezone=Africa/Lubumbashi -Dtests.asserts=true
-Dtests.file.encoding=UTF-8
[junit4] ERROR 3.18s | TestReplicationHandlerBackup.testBackupOnCommit <<<
[junit4] > Throwable #1: java.io.IOException: Could not remove the
following files (in the order of attempts):
[junit4] >
C:\Users\JenkinsSlave\workspace\Lucene-Solr-5.x-Windows\solr\build\solr-core\test\J0\temp\solr.handler.TestReplicationHandlerBackup
E514A9DF49C1148E-001\solr-instance-002\collection1:
java.nio.file.DirectoryNotEmptyException:
C:\Users\JenkinsSlave\workspace\Lucene-Solr-5.x-Windows\solr\build\solr-core\test\J0\temp\solr.handler.TestReplicationHandlerBackup
E514A9DF49C1148E-001\solr-instance-002\collection1
[junit4] >
C:\Users\JenkinsSlave\workspace\Lucene-Solr-5.x-Windows\solr\build\solr-core\test\J0\temp\solr.handler.TestReplicationHandlerBackup
E514A9DF49C1148E-001\solr-instance-002:
java.nio.file.DirectoryNotEmptyException:
C:\Users\JenkinsSlave\workspace\Lucene-Solr-5.x-Windows\solr\build\solr-core\test\J0\temp\solr.handler.TestReplicationHandlerBackup
E514A9DF49C1148E-001\solr-instance-002
[junit4] > at
__randomizedtesting.SeedInfo.seed([E514A9DF49C1148E:CCFC47343639A897]:0)
[junit4] > at org.apache.lucene.util.IOUtils.rm(IOUtils.java:294)
[junit4] > at
org.apache.solr.handler.TestReplicationHandler$SolrInstance.tearDown(TestReplicationHandler.java:1509)
[junit4] > at
org.apache.solr.handler.TestReplicationHandlerBackup.tearDown(TestReplicationHandlerBackup.java:115)
{code}
It happened because we added this to the solrconfig files - {{<str
name="backupAfter">commit</str>}} which means an extra backup got created which
we forgot to remove. I'll put up a patch to fix it.
One question though - Why doesn't it reproduce on my mac?
> Creating backup snapshot null pointer exception
> -----------------------------------------------
>
> Key: SOLR-6775
> URL: https://issues.apache.org/jira/browse/SOLR-6775
> Project: Solr
> Issue Type: Bug
> Components: replication (java)
> Affects Versions: 4.10
> Environment: Linux Server, Java version "1.7.0_21", Solr version
> 4.10.0
> Reporter: Ryan Hesson
> Assignee: Shalin Shekhar Mangar
> Labels: snapshot, solr
> Fix For: Trunk, 5.1
>
> Attachments: SOLR-6775.patch, SOLR-6775.patch
>
>
> I set up Solr Replication. I have one master on a server, one slave on
> another server. The replication of data appears functioning correctly. The
> issue is when the master SOLR tries to create a snapshot backup it gets a
> null pointer exception.
> org.apache.solr.handler.SnapShooter createSnapshot method calls
> org.apache.solr.handler.SnapPuller.delTree(snapShotDir); at line 162 and the
> exception happens within org.apache.solr.handler.SnapPuller at line 1026
> because snapShotDir is null.
> Here is the actual log output:
> 58319963 [qtp12610551-16] INFO org.apache.solr.core.SolrCore - newest
> commit generation = 349
> 58319983 [Thread-19] INFO org.apache.solr.handler.SnapShooter - Creating
> backup snapshot...
> Exception in thread "Thread-19" java.lang.NullPointerException
> at org.apache.solr.handler.SnapPuller.delTree(SnapPuller.java:1026)
> at
> org.apache.solr.handler.SnapShooter.createSnapshot(SnapShooter.java:162)
> at org.apache.solr.handler.SnapShooter$1.run(SnapShooter.java:91)
> I may have missed how to set the directory in the documentation but I've
> looked around without much luck. I thought the process was to use the same
> directory as the index data for the snapshots. Is this a known issue with
> this release or am I missing how to set the value? If someone could tell me
> how to set snapshotdir or confirm that it is an issue and a different way of
> backing up the index is needed it would be much appreciated.
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