Nio related problem - all threads are stuck
Hello, I have a web server application running (I am using TOMCAT NIO connector). Looking at the thread dump It appears 392 request processing threads are stuck while waiting for a monitor: Waiting for monitor entry [0x58d75000..0x58d75eb0] at java.nio.channels.spi.AbstractSelector.cancel(AbstractSelector.java:71) - waiting to lock 0x739bdeb8 (a java.util.HashSet) at java.nio.channels.spi.AbstractSelectionKey.cancel( AbstractSelectionKey.java:56) - locked 0xd8727238 (a sun.nio.ch.SelectionKeyImpl) The wanted monitor is being held by the main selector thread which also wait for a monitor entry: Waiting for monitor entry [0x58d75000..0x58d75eb0] at java.nio.channels.spi.AbstractSelector.cancel(AbstractSelector.java:71) - waiting to lock 0x739bdeb8 (a java.util.HashSet) at java.nio.channels.spi.AbstractSelectionKey.cancel( AbstractSelectionKey.java:56) - locked 0xd8727238 (a sun.nio.ch.SelectionKeyImpl) The monitor that the selector is waiting for is not being held by any other application thread. Meanwhile, I am receiving request timeouts. Comments will be appreciated. Thanks
Re: Nio related problem - all threads are stuck
I am running with JDK 1.5.0_11-b03, tomcat 6.0.14 on a linux redhat machine On Thu, Mar 6, 2008 at 4:38 PM, Caldarale, Charles R [EMAIL PROTECTED] wrote: From: esagi123 esagi123 [mailto:[EMAIL PROTECTED] Subject: Nio related problem - all threads are stuck Looking at the thread dump It appears 392 request processing threads are stuck while waiting for a monitor: Tomcat version? JRE/JDK version? Platform? - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
