could be waiting for i/o or some others... what tomcat version ? On Thu, Sep 29, 2022 at 5:57 PM Christoph Empl <christoph.e...@mgm-tp.com.invalid> wrote: > > Hello, > > i’m facing a problem that my tomcat seems to become unresponsive if it’s > under a certain load. > > Most threads in threaddumps look like this: > > > "https-jsse-nio-21030-exec-133" #13306 daemon prio=5 os_prio=0 cpu=17099.37ms > elapsed=897.51s tid=0x00007f6270063b00 nid=0x1e5c38 in Object.wait() > [0x00007f6109df4000] > > java.lang.Thread.State: TIMED_WAITING (on object monitor) > > at java.lang.Object.wait(java.base@17.0.3/Native Method) > > - waiting on <no object reference > available><monitor://%3cno%20object%20reference%20available%3e> > > at > org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1325) > > - locked <0x000000050f48a720><monitor://%3c0x000000050f48a720%3e> (a > java.util.concurrent.Semaphore) > > at > org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1226) > > at > org.apache.coyote.http11.Http11InputBuffer.fill(Http11InputBuffer.java:805) > > at > org.apache.coyote.http11.Http11InputBuffer.access$400(Http11InputBuffer.java:42) > > at > org.apache.coyote.http11.Http11InputBuffer$SocketInputBuffer.doRead(Http11InputBuffer.java:1185) > > at > org.apache.coyote.http11.filters.IdentityInputFilter.end(IdentityInputFilter.java:151) > > at > org.apache.coyote.http11.Http11InputBuffer.endRequest(Http11InputBuffer.java:655) > > at > org.apache.coyote.http11.Http11Processor.endRequest(Http11Processor.java:1192) > > at > org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:439) > > at > org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) > > at > org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890) > > at > org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743) > > at > org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) > > - locked <0x000000050f48a730><monitor://%3c0x000000050f48a730%3e> (a > org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper) > > at > org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) > > at > org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) > > at > org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) > > at java.lang.Thread.run(java.base@17.0.3/Thread.java:833) > > > I’m suspecting a slow network. Does anybody have another idea? > > > Thanks, Christoph
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