Hi Ted, I inserted the output at pastebin
http://pastebin.com/n3mMPxBA At the moment the hbase master process holds 10716 handles. We stopped making snapshots last week. After 4 days the count is still the same. Regards Hansi > Gesendet: Donnerstag, 17. April 2014 um 19:09 Uhr > Von: "Ted Yu" <yuzhih...@gmail.com> > An: "user@hbase.apache.org" <user@hbase.apache.org> > Betreff: Re: taking snapshot's creates to many TCP CLOSE_WAIT handles on the > hbase master server > > Can you take jstack of master process and pastebin it ? > > Thanks > > > On Thu, Apr 17, 2014 at 6:51 AM, Hansi Klose <hansi.kl...@web.de> wrote: > > > Hi, > > > > we use a script to take on a regular basis snapshot's and delete old one's. > > > > We recognizes that the web interface of the hbase master was not working > > any more becaues of too many open files. > > > > The master reaches his number of open file limit of 32768 > > > > When I run lsof I saw that there where a lot of TCP CLOSE_WAIT handles open > > with the regionserver as target. > > > > On the regionserver there is just one connection to the hbase master. > > > > I can see that the count of the CLOSE_WAIT handles grow each time > > i take a snapshot. When i delete on nothing changes. > > Each time i take a snapshot there are 20 - 30 new CLOSE_WAIT handles. > > > > Why does the master do not close the handles? Is there a parameter > > with a timeout we can use? > > > > We use hbase 0.94.2-cdh4.2.0. > > > > Regards Hansi > > >
