Hi Shrijeet, I think that's jira relevant to trunk, but not for 90.X. For there's no timeout mechanism in 90.X. Right? We found this problem in 90.x.
Thanks, Jieshan. -----邮件原件----- 发件人: Shrijeet Paliwal [mailto:shrij...@rocketfuel.com] 发送时间: 2011年12月1日 10:26 收件人: user@hbase.apache.org 抄送: Gaojinchao; Chenjian 主题: Re: Suspected memory leak Gaojinchao, I had filed this some time ago, https://issues.apache.org/jira/browse/HBASE-4633 But after some recent insights on our application code, I am inclined to think leak (or memory 'hold') is in our application. But it will be good to check out either way. I need to update the jira with my saga. See if the description of issue I posted there, matches yours. If not, may be you can update with your story in detail. -Shrijeet 2011/11/30 Gaojinchao <gaojinc...@huawei.com> > I have noticed some memory leak problems in my HBase client. > RES has increased to 27g > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > 12676 root 20 0 30.8g 27g 5092 S 2 57.5 587:57.76 > /opt/java/jre/bin/java -Djava.library.path=lib/. > > But I am not sure the leak comes from HBase Client jar itself or just our > client code. > > This is some parameters of jvm. > :-Xms15g -Xmn12g -Xmx15g -XX:PermSize=64m -XX:+UseParNewGC > -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=65 > -XX:+UseCMSCompactAtFullCollection -XX:CMSFullGCsBeforeCompaction=1 > -XX:+CMSParallelRemarkEnabled > > Who has experience in this case? , I need continue to dig :) > > > > 发件人: Gaojinchao > 发送时间: 2011年11月30日 11:02 > 收件人: user@hbase.apache.org > 主题: Suspected memory leak > > In HBaseClient proceess, I found heap has been increased. > I used command ’cat smaps’ to get the heap size. > It seems in case when the threads pool in HTable has released the no using > thread, if you use putlist api to put data again, the memory is increased. > > Who has experience in this case? > > Below is the heap of Hbase client: > C3S31:/proc/18769 # cat smaps > 4010a000-4709d000 rwxp 00000000 00:00 0 > [heap] > Size: 114252 kB > Rss: 114044 kB > Pss: 114044 kB > > 4010a000-4709d000 rwxp 00000000 00:00 0 > [heap] > Size: 114252 kB > Rss: 114044 kB > Pss: 114044 kB > > 4010a000-48374000 rwxp 00000000 00:00 0 > [heap] > Size: 133544 kB > Rss: 133336 kB > Pss: 133336 kB > > 4010a000-49f20000 rwxp 00000000 00:00 0 > [heap] > Size: 161880 kB > Rss: 161672 kB > Pss: 161672 kB > > 4010a000-4c5de000 rwxp 00000000 00:00 0 > [heap] > Size: 201552 kB > Rss: 201344 kB > Pss: 201344 kB >
