Justin Bertram created ARTEMIS-5861:
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Summary: Netty acceptor not shutting down
Key: ARTEMIS-5861
URL: https://issues.apache.org/jira/browse/ARTEMIS-5861
Project: Artemis
Issue Type: Bug
Reporter: Justin Bertram
Assignee: Justin Bertram
Thread dump analysis reveals that the broker hangs indefinitely when trying to
close Netty channel groups in a Netty acceptor, e.g.:
{noformat}
State: WAITING (on object monitor)
Stack trace:
at
io.netty.util.concurrent.DefaultPromise.awaitUninterruptibly(DefaultPromise.java:290)
- locked <0x00000000dbd095a8> (a
io.netty.channel.group.DefaultChannelGroupFuture)
at
io.netty.channel.group.DefaultChannelGroupFuture.awaitUninterruptibly(DefaultChannelGroupFuture.java:178)
at
org.apache.activemq.artemis.core.remoting.impl.netty.NettyAcceptor.asyncStop(NettyAcceptor.java:793){noformat}
The code at {{NettyAcceptor.java:793}} calls
{{channelGroup.close().awaitUninterruptibly()}} without a timeout parameter
causing indefinite hang when channels fail to close properly. This problem is
very rare and there is no good reproducer
The broker should complete shutdown within a reasonable timeout period,
forcefully closing any remaining connections if necessary.
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