https://issues.apache.org/bugzilla/show_bug.cgi?id=56907
Bug ID: 56907
Summary: Threads leak
Product: Tomcat 8
Version: 8.0.11
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: WebSocket
Assignee: dev@tomcat.apache.org
Reporter: gaponen...@haulmont.com
Hello.
While using WebSocket implementation of versions 7.0.55 and 8.0.11 leaking
threads were noticed.
Use method WsWebSocketContainer.connection (endpoint,
clientEndpointConfiguration, path) to reproduce this issue.
The URL to specify a non-existent page. As a result, the connection will return
an error "404 Not Found", but the threads that have been created in the class
AsyncChannelWrapperSecure will stay alive for a long time (source of threads
creation: private final ExecutorService executor = Executors.newFixedThreadPool
(2, new SecureIOThreadFactory ());).
Count of threads are increasing with every reconnect attempt to non-existent
URL.
Those will live for a very long time, until you disable the application that
calls the connection WsWebSocketContainer.connection (...).
Leakage threads can be observed using the jvisualvm program.
Please, make it possible to deal with such kind of situations and destroy
unused threads.
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