[ https://issues.apache.org/jira/browse/SSHD-1179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17359905#comment-17359905 ]
Guillaume Nodet commented on SSHD-1179: --------------------------------------- The most probable reason is that the {{SftpSubsystem}} are not closed correctly. > Getting OOM after upgrading to 2.6.0 > ------------------------------------ > > Key: SSHD-1179 > URL: https://issues.apache.org/jira/browse/SSHD-1179 > Project: MINA SSHD > Issue Type: Bug > Affects Versions: 2.6.0 > Reporter: Subramaniajeeva > Priority: Critical > > I upgraded mina version from 2.3.0 to 2.6.0 2 months back. Since then I could > see the number of JVM threads keep on increasing(till ~12500), leading to OOM > in production systems. > Here is the stack trace with 2100+ similar threads: > java.lang.Thread.State: WAITING (parking) > at sun.misc.Unsafe.park({color:#000080}Native Method{color}) > - parking to wait for *<0x000000079f7630c8>* (a > java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) > at > java.util.concurrent.locks.LockSupport.park({color:#000080}LockSupport.java:175{color}) > at > java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await({color:#000080}AbstractQueuedSynchronizer.java:2039{color}) > at > java.util.concurrent.LinkedBlockingQueue.take({color:#000080}LinkedBlockingQueue.java:442{color}) > at > org.apache.sshd.sftp.server.SftpSubsystem.run({color:#000080}SftpSubsystem.java:267{color}) > at > java.util.concurrent.Executors$RunnableAdapter.call({color:#000080}Executors.java:511{color}) > at > java.util.concurrent.FutureTask.run({color:#000080}FutureTask.java:266{color}) > at > java.util.concurrent.ThreadPoolExecutor.runWorker({color:#000080}ThreadPoolExecutor.java:1149{color}) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run({color:#000080}ThreadPoolExecutor.java:624{color}) > at java.lang.Thread.run({color:#000080}Thread.java:748{color}) > > I tried to debug and I'm not able to isolate the root cause. Is it identified > and fixed already in 2.7.0? > [~lgoldstein] Any help would be appreciated. > -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@mina.apache.org For additional commands, e-mail: dev-h...@mina.apache.org