Hi, I am seeing an issue in my case using ActiveMQ-5.10 levledb persistence adaptor. When I go to my leveldb directory, I can see those .nfs**** files. I goggled a little bit and find that : If you remove a file that a currently running process still has open, the file isn't really removed. Once the process closes the file, the OS then removes the file handle and frees up the disk blocks. These files mean that they were still open for io, while they were removed from the filesystem.
Below is the snapshot of those files: -------------------------------------------------------------------------------------- amqt...@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 -------------------------------------------------------------------------------------- amqt...@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 --------------------------------------------------------------------------- I think ActiveMQ is directly removing these files rather than closing and removing them,. Please take a look at this. Thanks, Anuj -- View this message in context: http://activemq.2283324.n4.nabble.com/nfs-files-in-leveldb-messge-store-ActiveMQ-5-10-tp4687045.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
