[jira] [Created] (AMQ-5430) LevelDB on NFS creats .nfs files

["Anuj Khandelwal (JIRA)" <ji...@apache.org>]

Anuj Khandelwal created AMQ-5430:
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             Summary: LevelDB on NFS creats .nfs files
                 Key: AMQ-5430
                 URL: https://issues.apache.org/jira/browse/AMQ-5430
             Project: ActiveMQ
          Issue Type: Bug
          Components: activemq-leveldb-store
    Affects Versions: 5.10.0
            Reporter: Anuj Khandelwal


We are currently testing levelDB on NFS. 

leveldb creates .log files in leveldb directory to store actual message/data and this files rotates after 100MB size. These .log files gets deleted when all the messages are consumed from a particular file. 

Issue: After all the messages are consumed I can see that files are getting deleted but internally they are creating .nfs files of same size. 
we have to restart the process to delete those .nfs files. 

>From my understanding: It seems that the LevelDB store keeps the old logfiles open after they were deleted.

Below is the snapshot of files: 

amqtest@kepler19.nyc:/u/amqtest/dev/leveldb> ls -a
.nfs000000000082e7be0000fafe
.nfs0000000000960d1e0000eb46
.nfs00000000010332430000ea15
.nfs0000000000614cf10000eaef
.nfs0000000000960d1a0000ee3e
.nfs00000000010332420000e52d
dirty.index
store-version.txt
.nfs000000000082e7c3000100c5
.nfs0000000000960d1f0000f27f
00000000724ff92c.index
lock
00000000724ff92c.log
plist.index
--------------------------------------------------------------------------------------

amqtest@kepler19.nyc:/u/amqtest/dev/leveldb> du -sh .nfs*
107M .nfs0000000000614cf10000eaef
101M .nfs000000000082e7be0000fafe
101M .nfs000000000082e7c3000100c5
108M .nfs0000000000960d1a0000ee3e
106M .nfs0000000000960d1e0000eb46
104M .nfs0000000000960d1f0000f27f
101M .nfs00000000010332420000e52d
101M .nfs00000000010332430000ea15

Thanks,
Anuj



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