https://bz.apache.org/bugzilla/show_bug.cgi?id=57920
Bug ID: 57920
Summary: websocket deadlock
Product: Tomcat 7
Version: 7.0.56
Hardware: Sun
OS: Linux
Status: NEW
Severity: blocker
Priority: P2
Component: WebSocket
Assignee: [email protected]
Reporter: [email protected]
i can not access the https port 443, there are so many CLOSE_WAIT in the
server. i dumped the threads using the jvisualvm. there is a deadlock.
"http-nio-443-exec-41" daemon prio=10 tid=0x00007ff618e3a000 nid=0x5384 waiting
for monitor entry [0x00007ff61cda7000]
java.lang.Thread.State: BLOCKED (on object monitor)
at org.apache.tomcat.websocket.WsSession.onClose(WsSession.java:463)
- waiting to lock <0x00000006e18acd38> (a java.lang.Object)
at
org.apache.tomcat.websocket.WsFrameBase.processDataControl(WsFrameBase.java:342)
at
org.apache.tomcat.websocket.WsFrameBase.processData(WsFrameBase.java:284)
at
org.apache.tomcat.websocket.WsFrameBase.processInputBuffer(WsFrameBase.java:130)
at
org.apache.tomcat.websocket.server.WsFrameServer.onDataAvailable(WsFrameServer.java:56)
- locked <0x00000006e18b3c98> (a java.lang.Object)
at
org.apache.tomcat.websocket.server.WsHttpUpgradeHandler$WsReadListener.onDataAvailable(WsHttpUpgradeHandler.java:203)
at
org.apache.coyote.http11.upgrade.AbstractServletInputStream.onDataAvailable(AbstractServletInputStream.java:203)
at
org.apache.coyote.http11.upgrade.AbstractProcessor.upgradeDispatch(AbstractProcessor.java:92)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:609)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1736)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1695)
- locked <0x00000006e18aa7a0> (a
org.apache.tomcat.util.net.SecureNioChannel)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
Locked ownable synchronizers:
- <0x000000068d8bcc58> (a java.util.concurrent.ThreadPoolExecutor$Worker)
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