https://bz.apache.org/bugzilla/show_bug.cgi?id=63931
Bug ID: 63931
Summary: The remote endpoint was in state [TEXT_FULL_WRITING]
which is an invalid state
Product: Tomcat 9
Version: unspecified
Hardware: PC
Status: NEW
Severity: major
Priority: P2
Component: WebSocket
Assignee: dev@tomcat.apache.org
Reporter: sauravksi...@eaton.com
Target Milestone: -----
Given:
RabbitMQ as a incoming streaming message source consumer
When:
WebScoket subscribe for incoming message to show on UI. It works fine for
initial few moments.
Then:
The moment incoming streaming message rate goes more than 800messages/sec after
few min started receiving below Exception:
synchronized (this) {
if (session.isOpen()) {
try {
log.info("Sending message to client session ID : " +
session.getId());
((StandardWebSocketSession)
session).getNativeSession().getBasicRemote().sendText(message);
} catch (Exception e) {
log.error("Encountered an error sending to client!",
e);
}
}
}
we also used StampedLock at method level to socket session management.
------------
2019-11-18T13:06:32,084 [tainer#0-1] co.ea.ex.no.tr.we.WebSocketServerHandler
ERROR: o.tr.we.WebSocketServerHandler(dToSession: 520) Encountered an error
sending to client!
java.lang.IllegalStateException: The remote endpoint was in state
[TEXT_FULL_WRITING] which is an invalid state for called method
at
org.apache.tomcat.websocket.WsRemoteEndpointImplBase$StateMachine.checkState(WsRemoteEndpointImplBase.java:1229)
at
org.apache.tomcat.websocket.WsRemoteEndpointImplBase$StateMachine.textStart(WsRemoteEndpointImplBase.java:1191)
at
org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendString(WsRemoteEndpointImplBase.java:190)
at
org.apache.tomcat.websocket.WsRemoteEndpointBasic.sendText(WsRemoteEndpointBasic.java:37)
at
com.eaton.export.notifications.transport.websocket.WebSocketServerHandler.sendToSession(WebSocketServerHandler.java:518)
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