https://bz.apache.org/bugzilla/show_bug.cgi?id=61773
Xiaojin Zhang <zhan...@shterm.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |---
Severity|major |normal
--- Comment #3 from Xiaojin Zhang <zhan...@shterm.com> ---
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)
|
+-----------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
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