I cannot see any specific plugins in the stacktrace. There are several duplicate threads. Here are some of them. Most common denominator seems to be about SSH.
Thread 29360: (state = BLOCKED) - java.lang.Object.wait(long) @bci=0 (Compiled frame; information may be imprecise) - java.lang.Object.wait() @bci=2, line=502 (Compiled frame) - java.util.TimerThread.mainLoop() @bci=28, line=526 (Compiled frame) - java.util.TimerThread.run() @bci=1, line=505 (Compiled frame) Thread 29339: (state = BLOCKED) - hudson.plugins.sshslaves.SSHLauncher.launch(hudson.slaves.SlaveComputer, hudson.model.TaskListener) @bci=25, line=401 (Compiled frame) - hudson.slaves.SlaveComputer$1.call() @bci=88, line=294 (Compiled frame) - jenkins.util.ContextResettingExecutorService$2.call() @bci=18, line=46 (Compiled frame) - jenkins.security.ImpersonatingExecutorService$2.call() @bci=17, line=71 (Compiled frame) - java.util.concurrent.FutureTask.run() @bci=42, line=266 (Compiled frame) - java.util.concurrent.ThreadPoolExecutor.runWorker(java.util.concurrent.ThreadPoolExecutor$Worker) @bci=95, line=1149 (Compiled frame) - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=5, line=624 (Compiled frame) - java.lang.Thread.run() @bci=11, line=748 (Compiled frame) Thread 29122: (state = BLOCKED) - java.lang.Object.wait(long) @bci=0 (Compiled frame; information may be imprecise) - java.lang.Object.wait() @bci=2, line=502 (Compiled frame) - com.trilead.ssh2.channel.ChannelManager.waitUntilChannelOpen(com.trilead.ssh2.channel.Channel) @bci=13, line=110 (Compiled frame) - com.trilead.ssh2.channel.ChannelManager.openSessionChannel() @bci=109, line=574 (Compiled frame) - com.trilead.ssh2.Session.<init>(com.trilead.ssh2.channel.ChannelManager, java.security.SecureRandom) @bci=36, line=42 (Compiled frame) - com.trilead.ssh2.Connection.openSession() @bci=46, line=1145 (Compiled frame) - com.trilead.ssh2.Connection.exec(java.lang.String, java.io.OutputStream) @bci=1, line=1566 (Compiled frame) - hudson.plugins.sshslaves.SSHLauncher$3.run() @bci=79, line=969 (Compiled frame) - jenkins.util.ContextResettingExecutorService$1.run() @bci=18, line=28 (Compiled frame) - jenkins.security.ImpersonatingExecutorService$1.run() @bci=17, line=59 (Compiled frame) - java.util.concurrent.Executors$RunnableAdapter.call() @bci=4, line=511 (Compiled frame) - java.util.concurrent.FutureTask.run() @bci=42, line=266 (Compiled frame) - java.util.concurrent.ThreadPoolExecutor.runWorker(java.util.concurrent.ThreadPoolExecutor$Worker) @bci=95, line=1149 (Compiled frame) - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=5, line=624 (Compiled frame) - java.lang.Thread.run() @bci=11, line=748 (Compiled frame) Thread 28586: (state = BLOCKED) - sun.misc.Unsafe.park(boolean, long) @bci=0 (Compiled frame; information may be imprecise) - java.util.concurrent.locks.LockSupport.parkNanos(java.lang.Object, long) @bci=20, line=215 (Compiled frame) - java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(long, java.util.concurrent.TimeUnit) @bci=97, line=2163 (Compiled frame) - org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.reservedWait() @bci=97, line=292 (Compiled frame) - org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run() @bci=188, line=357 (Compiled frame) - org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(java.lang.Runnable) @bci=1, line=765 (Compiled frame) - org.eclipse.jetty.util.thread.QueuedThreadPool$2.run() @bci=104, line=683 (Compiled frame) - java.lang.Thread.run() @bci=11, line=748 (Compiled frame) Thread 28324: (state = BLOCKED) - java.lang.Thread.sleep(long) @bci=0 (Compiled frame; information may be imprecise) - hudson.remoting.PingThread.run() @bci=38, line=95 (Compiled frame) Thread 27552: (state = BLOCKED) - com.trilead.ssh2.Connection.close() @bci=0, line=573 (Compiled frame) - hudson.plugins.sshslaves.SSHLauncher.cleanupConnection(hudson.model.TaskListener) @bci=11, line=511 (Compiled frame) - hudson.plugins.sshslaves.SSHLauncher.tearDownConnectionImpl(hudson.slaves.SlaveComputer, hudson.model.TaskListener) @bci=345, line=1006 (Compiled frame) - hudson.plugins.sshslaves.SSHLauncher.tearDownConnection(hudson.slaves.SlaveComputer, hudson.model.TaskListener) @bci=10, line=930 (Compiled frame) - hudson.plugins.sshslaves.SSHLauncher.afterDisconnect(hudson.slaves.SlaveComputer, hudson.model.TaskListener) @bci=50, line=925 (Compiled frame) - hudson.slaves.SlaveComputer$3.run() @bci=46, line=738 (Compiled frame) - jenkins.util.ContextResettingExecutorService$1.run() @bci=18, line=28 (Compiled frame) - jenkins.security.ImpersonatingExecutorService$1.run() @bci=17, line=59 (Compiled frame) - java.util.concurrent.Executors$RunnableAdapter.call() @bci=4, line=511 (Compiled frame) - java.util.concurrent.FutureTask.run() @bci=42, line=266 (Compiled frame) - java.util.concurrent.ThreadPoolExecutor.runWorker(java.util.concurrent.ThreadPoolExecutor$Worker) @bci=95, line=1149 (Compiled frame) - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=5, line=624 (Compiled frame) - java.lang.Thread.run() @bci=11, line=748 (Compiled frame) Thread 16047: (state = BLOCKED) - java.lang.Object.wait(long) @bci=0 (Compiled frame; information may be imprecise) - hudson.remoting.Request$1.get(long, java.util.concurrent.TimeUnit) @bci=109, line=312 (Compiled frame) - hudson.remoting.Request$1.get(long, java.util.concurrent.TimeUnit) @bci=3, line=240 (Compiled frame) - hudson.remoting.FutureAdapter.get(long, java.util.concurrent.TimeUnit) @bci=7, line=59 (Compiled frame) - net.bull.javamelody.RemoteCallHelper.collectDataByNodeName(hudson.remoting.Callable) @bci=242, line=205 (Compiled frame) - net.bull.javamelody.RemoteCallHelper.collectJavaInformationsListByName() @bci=4, line=217 (Compiled frame) - net.bull.javamelody.NodesCollector.collectWithoutErrorsNow() @bci=9, line=159 (Compiled frame) - net.bull.javamelody.NodesCollector.collectWithoutErrors() @bci=9, line=147 (Compiled frame) - net.bull.javamelody.NodesCollector$1.run() @bci=4, line=91 (Compiled frame) - java.util.TimerThread.mainLoop() @bci=221, line=555 (Compiled frame) - java.util.TimerThread.run() @bci=1, line=505 (Interpreted frame) onsdag 17. juli 2019 13.55.39 UTC+2 skrev Ivan Fernandez Calvo følgende: > > Those BLOCKED threads should be related to some plugin or class, see the > stack trace on the thread dump to try to figure out which one is, then > seems the root cause of your problem. > -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. 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