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https://issues.apache.org/jira/browse/OAK-2808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16028355#comment-16028355
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Vikas Saurabh edited comment on OAK-2808 at 5/29/17 2:09 PM:
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[~reschke] pointed out:
{noformat}
[ERROR] Tests run: 7, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.81 s
<<< FAILURE! - in
org.apache.jackrabbit.oak.plugins.index.lucene.directory.ActiveDeletedBlobCollectorTest
[ERROR]
inaccessibleWorkDirGivesNoop(org.apache.jackrabbit.oak.plugins.index.lucene.directory.ActiveDeletedBlobCollectorTest)
Time elapsed: 0.011 s <<< ERROR!
java.lang.UnsupportedOperationException
at
org.apache.jackrabbit.oak.plugins.index.lucene.directory.ActiveDeletedBlobCollectorTest.inaccessibleWorkDirGivesNoop(ActiveDeletedBlobCollectorTest.java:240)
{noformat}
on windows...
Fixed by [r1796633|https://svn.apache.org/r1796633].
was (Author: catholicon):
[~reschke] pointed out:
{noformat}
[ERROR] Tests run: 7, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.81 s
<<< FAILURE! - in
org.apache.jackrabbit.oak.plugins.index.lucene.directory.ActiveDeletedBlobCollectorTest
[ERROR]
inaccessibleWorkDirGivesNoop(org.apache.jackrabbit.oak.plugins.index.lucene.directory.ActiveDeletedBlobCollectorTest)
Time elapsed: 0.011 s <<< ERROR!
java.lang.UnsupportedOperationException
at
org.apache.jackrabbit.oak.plugins.index.lucene.directory.ActiveDeletedBlobCollectorTest.inaccessibleWorkDirGivesNoop(ActiveDeletedBlobCollectorTest.java:240)
{noformat}
on windows...
> Active deletion of 'deleted' Lucene index files from DataStore without
> relying on full scale Blob GC
> ----------------------------------------------------------------------------------------------------
>
> Key: OAK-2808
> URL: https://issues.apache.org/jira/browse/OAK-2808
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: lucene
> Reporter: Chetan Mehrotra
> Assignee: Vikas Saurabh
> Labels: datastore, performance
> Fix For: 1.8
>
> Attachments: copyonread-stats.png, OAK-2808-1.patch
>
>
> With storing of Lucene index files within DataStore our usage pattern
> of DataStore has changed between JR2 and Oak.
> With JR2 the writes were mostly application based i.e. if application
> stores a pdf/image file then that would be stored in DataStore. JR2 by
> default would not write stuff to DataStore. Further in deployment
> where large number of binary content is present then systems tend to
> share the DataStore to avoid duplication of storage. In such cases
> running Blob GC is a non trivial task as it involves a manual step and
> coordination across multiple deployments. Due to this systems tend to
> delay frequency of GC
> Now with Oak apart from application the Oak system itself *actively*
> uses the DataStore to store the index files for Lucene and there the
> churn might be much higher i.e. frequency of creation and deletion of
> index file is lot higher. This would accelerate the rate of garbage
> generation and thus put lot more pressure on the DataStore storage
> requirements.
> Discussion thread http://markmail.org/thread/iybd3eq2bh372zrl
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