This is expected, when you have a reader still open on a point-in-time snapshot of the index, yet the writer is still indexing/merging. The writer will delete old files, but the reader still has them open, so you see those "(deleted)" entries in the lsof output.
Mike McCandless http://blog.mikemccandless.com On Thu, Jul 21, 2011 at 7:10 AM, Gudi, Ravi Sankar <ravisankarg.ravisank...@hp.com> wrote: > Hi Lucene Team, > > > > On our test system the document store and indexing happening simultaneously, > I just ran lsof –p <java_process_id> to see how many file descriptors are > opened by this java process, > > there were many results marked with deleted, I am having the following > doubts here > > 1) Is Lucene is ignoring releasing this file descriptors? > > 2) Will it not cause any problem if these are like this? > > 3) Any I/O performance issues will come if it is like this? > > > > I attached complete out put of the following command in text file, please > can you answer kindly? > > [r...@sc-s1-172-1.oxford.com ~]# lsof -p 15580 | grep "(deleted)" >>>/root/deleted.txt > > > > [r...@sc-s1-172-1.oxford.com ~]# lsof -p 15580 | grep "(deleted)" | wc -l > > 933 > > COMMAND PID USER FD TYPE DEVICE SIZE NODE > NAME > > java 15580 appuser 139r REG 104,17 11933 338296874 > /store/index/TP_0000000000000000498/_od8.fdt (deleted) > > java 15580 appuser 146r REG 104,17 200 338296884 > /store/index/TP_0000000000000000498/_od8.fdx (deleted) > > java 15580 appuser 147r REG 104,17 96920 355074064 > /store/index/TP_0000000000000000498/_od8.tis (deleted) > > java 15580 appuser 392r REG 104,17 503095 311033904 > /store/index/TP_0000000000000000505/_fkg.fdt (deleted) > > java 15580 appuser 403r REG 104,17 8000 311033905 > /store/index/TP_0000000000000000505/_fkg.fdx (deleted) > > java 15580 appuser 405r REG 104,17 1055507 411893896 > /store/index/TP_0000000000000000482/_gvy.fdt (deleted) > > java 15580 appuser 425r REG 104,17 16184 411893897 > /store/index/TP_0000000000000000482/_gvy.fdx (deleted) > > java 15580 appuser 426r REG 104,17 1905265 411893900 > /store/index/TP_0000000000000000482/_gvy.tis (deleted) > > java 15580 appuser 433r REG 104,17 5149126 411893898 > /store/index/TP_0000000000000000482/_gvy.frq (deleted) > > java 15580 appuser 435r REG 104,17 10719962 411893899 > /store/index/TP_0000000000000000482/_gvy.prx (deleted) > > java 15580 appuser 436r REG 104,17 46533 411893902 > /store/index/TP_0000000000000000482/_gvy.nrm (deleted) > > java 15580 appuser 454r REG 104,17 2920506 311033917 > /store/index/TP_0000000000000000505/_fkg.tis (deleted) > > > > Regards > > Ravi > > > > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
