https://bz.apache.org/bugzilla/show_bug.cgi?id=61773
Xiaojin Zhang <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Resolution|INVALID |--- Severity|major |normal --- Comment #3 from Xiaojin Zhang <[email protected]> --- After further testing, it is found that when Connector is configured with Http2NioProtocol, Websocket closes and AbstractEndpoint.countDownConnection cannot be called. Details of closing Websocket connection are as follows: 1, when the WebSocket is closed by the client, it first calls the Nio2Channel.close method. This method calls SocketChannel.close and calls Nio2Channel.isOpen back to false 2, the last call to the Nio2Endpoint.closeSocket method, the release of Socket. This method is called AbstractEndpoint.countDownConnection if Nio2Channel.isOpen returns true, but the first step is to call the SocketChannel.close method, it returns false, leading to the call to AbstractEndpoint.countDownConnection, the number of connections appear unable to release, and cannot receive the new request when opened Websocket over 10000. So, I guess the problem is on the Nio2Endpoint.closeSocket implementation. Please see logs for testing. Step 1 log: -----------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+ | STACK | thread_name="http-nio2-8080-exec-5" thread_id=0x10;is_daemon=true;priority=5; | | | @org.apache.tomcat.util.net.Nio2Channel.isOpen(Nio2Channel.java:96) | | | at org.apache.tomcat.util.net.Nio2Channel.close(Nio2Channel.java:84) | | | at org.apache.coyote.http11.upgrade.Nio2ServletOutputStream.doClose(Nio2ServletOutputStream.java:196) | | | at org.apache.coyote.http11.upgrade.AbstractServletOutputStream.close(AbstractServletOutputStream.java:140) | | | at org.apache.tomcat.websocket.server.WsRemoteEndpointImplServer.doClose(WsRemoteEndpointImplServer.java:139) | | | at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.close(WsRemoteEndpointImplBase.java:667) | | | at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler$WsWriteListener.onError(WsHttpUpgradeHandler.java:234) | | | at org.apache.coyote.http11.upgrade.AbstractServletOutputStream.onError(AbstractServletOutputStream.java:239) | | | at org.apache.coyote.http11.upgrade.Nio2ServletOutputStream$1.failed(Nio2ServletOutputStream.java:74) | | | at org.apache.coyote.http11.upgrade.Nio2ServletOutputStream$1.failed(Nio2ServletOutputStream.java:51) | | | at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:128) | | | at sun.nio.ch.Invoker.invokeDirect(Invoker.java:157) | | | at sun.nio.ch.UnixAsynchronousSocketChannelImpl.implWrite(UnixAsynchronousSocketChannelImpl.java:736) | | | at sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:382) | | | at sun.nio.ch.AsynchronousSocketChannelImpl.write(AsynchronousSocketChannelImpl.java:399) | | | at org.apache.tomcat.util.net.Nio2Channel.write(Nio2Channel.java:161) | | | at org.apache.coyote.http11.upgrade.Nio2ServletOutputStream.doWriteInternal(Nio2ServletOutputStream.java:153) | | | at org.apache.coyote.http11.upgrade.Nio2ServletOutputStream.doWrite(Nio2ServletOutputStream.java:97) | | | at org.apache.coyote.http11.upgrade.AbstractServletOutputStream.writeInternal(AbstractServletOutputStream.java:165) | | | at org.apache.coyote.http11.upgrade.AbstractServletOutputStream.write(AbstractServletOutputStream.java:132) | | | at org.apache.tomcat.websocket.server.WsRemoteEndpointImplServer.onWritePossible(WsRemoteEndpointImplServer.java:98) | | | at org.apache.tomcat.websocket.server.WsRemoteEndpointImplServer.doWrite(WsRemoteEndpointImplServer.java:79) | | | at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.writeMessagePart(WsRemoteEndpointImplBase.java:453) | | | at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.startMessage(WsRemoteEndpointImplBase.java:341) | | | at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.startMessageBlock(WsRemoteEndpointImplBase.java:273) | | | at org.apache.tomcat.websocket.WsSession.sendCloseMessage(WsSession.java:600) | | | at org.apache.tomcat.websocket.WsSession.doClose(WsSession.java:490) | | | at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler.onError(WsHttpUpgradeHandler.java:149) | | | at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler.access$300(WsHttpUpgradeHandler.java:47) | | | at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler$WsReadListener.onError(WsHttpUpgradeHandler.java:206) | | | at org.apache.coyote.http11.upgrade.AbstractServletInputStream.onError(AbstractServletInputStream.java:216) | | | at org.apache.coyote.http11.upgrade.Nio2ServletInputStream$1.failed(Nio2ServletInputStream.java:82) | | | at org.apache.coyote.http11.upgrade.Nio2ServletInputStream$1.failed(Nio2ServletInputStream.java:51) | | | at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:128) | | | at sun.nio.ch.Invoker$2.run(Invoker.java:218) | | | at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112) | | | at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) | | | at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) | | | at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:-1) | | | at java.lang.Thread.run(Thread.java:748) Step 2 log: +-----------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+ | STACK | thread_name="http-nio2-8080-exec-8" thread_id=0x13;is_daemon=true;priority=5; | | | @org.apache.tomcat.util.net.Nio2Channel.isOpen(Nio2Channel.java:96) | | | at org.apache.tomcat.util.net.Nio2Endpoint.closeSocket(Nio2Endpoint.java:649) | | | at org.apache.tomcat.util.net.Nio2Endpoint$SocketProcessor.doRun(Nio2Endpoint.java:1102) | | | at org.apache.tomcat.util.net.Nio2Endpoint$SocketProcessor.run(Nio2Endpoint.java:1056) | | | at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) | | | at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) | | | at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:-1) | | | at java.lang.Thread.run(Thread.java:748) | +-----------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+ -- You are receiving this mail because: You are the assignee for the bug. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
