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Posted to oak-issues@jackrabbit.apache.org by "Chetan Mehrotra (JIRA)" <ji...@apache.org> on 2015/03/19 08:53:38 UTC
[jira] [Created] (OAK-2649) IndexCopier might create empty files in
case of error occuring while copying
Chetan Mehrotra created OAK-2649:
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Summary: IndexCopier might create empty files in case of error occuring while copying
Key: OAK-2649
URL: https://issues.apache.org/jira/browse/OAK-2649
Project: Jackrabbit Oak
Issue Type: Bug
Components: oak-lucene
Reporter: Chetan Mehrotra
Assignee: Chetan Mehrotra
Priority: Minor
Fix For: 1.1.8
On some of the setups following logs are seen
{noformat}
error.log:12.03.2015 03:53:59.785 *WARN* [pool-5-thread-90] org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopier Found local copy for _2uv.cfs in MMapDirectory@/mnt/installation/crx-quickstart/repository/index/e5a943cdec3000bd8ce54924fd2070ab5d1d35b9ecf530963a3583d43bf28293/1 lockFactory=NativeFSLockFactory@/mnt/installation/crx-quickstart/repository/index/e5a943cdec3000bd8ce54924fd2070ab5d1d35b9ecf530963a3583d43bf28293/1 but size of local 0 differs from remote 1070972. Content would be read from remote file only
error.log:12.03.2015 03:54:02.883 *WARN* [pool-5-thread-125] org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopier Found local copy for _2rr.si in MMapDirectory@/mnt/installation/crx-quickstart/repository/index/43b36b107f8ce7e162c15b22508aa457ff6ae0083ed3e12d14a7dab67f886def/1 lockFactory=NativeFSLockFactory@/mnt/installation/crx-quickstart/repository/index/43b36b107f8ce7e162c15b22508aa457ff6ae0083ed3e12d14a7dab67f886def/1 but size of local 0 differs from remote 240. Content would be read from remote file only
error.log:12.03.2015 03:54:03.467 *WARN* [pool-5-thread-132] org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopier Found local copy for _2ro_3.del in MMapDirectory@/mnt/installation/crx-quickstart/repository/index/43b36b107f8ce7e162c15b22508aa457ff6ae0083ed3e12d14a7dab67f886def/1 lockFactory=NativeFSLockFactory@/mnt/installation/crx-quickstart/repository/index/43b36b107f8ce7e162c15b22508aa457ff6ae0083ed3e12d14a7dab67f886def/1 but size of local 0 differs from remote 42. Content would be read from remote file only
error.log:12.03.2015 03:54:03.737 *WARN* [pool-5-thread-135] org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopier Found local copy for _2rm_2.del in MMapDirectory@/mnt/installation/crx-quickstart/repository/index/43b36b107f8ce7e162c15b22508aa457ff6ae0083ed3e12d14a7dab67f886def/1 lockFactory=NativeFSLockFactory@/mnt/installation/crx-quickstart/repository/index/43b36b107f8ce7e162c15b22508aa457ff6ae0083ed3e12d14a7dab67f886def/1 but size of local 0 differs from remote 35. Content would be read from remote file only
{noformat}
They indicate that copier has created files of size 0. Looking at the code flow this can happen in case while starting copying some error occurs in between. {{org.apache.lucene.store.Directory#copy}} do take care of removing the file in case of error but that is done only for IOException and not for other cases.
As a fix the logic should ensure that local file gets deleted if the copy was not successful
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