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Bug
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Resolution: Done
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Major
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12.0.0.Final
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None
NettyTransport.stop() calls acceptedChannels.close() after shutting down the both the masterGroup and the ioGroup. But if a channel is still open, closing it requires submitting a task to the channel's event loop, which is now shut down.
AbstractChannelHandlerContext.safeExecute() hides the rejection exception, but the ChannelPromise returned by channel.close() never completes, and the server doesn't stop.
java.util.concurrent.RejectedExecutionException: event executor terminated at io.netty.util.concurrent.SingleThreadEventExecutor.reject(SingleThreadEventExecutor.java:926) at io.netty.util.concurrent.SingleThreadEventExecutor.offerTask(SingleThreadEventExecutor.java:353) at io.netty.util.concurrent.SingleThreadEventExecutor.addTask(SingleThreadEventExecutor.java:346) at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:828) at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:818) at io.netty.channel.AbstractChannelHandlerContext.safeExecute(AbstractChannelHandlerContext.java:989) at io.netty.channel.AbstractChannelHandlerContext.close(AbstractChannelHandlerContext.java:608) at io.netty.channel.AbstractChannelHandlerContext.close(AbstractChannelHandlerContext.java:472) at io.netty.channel.DefaultChannelPipeline.close(DefaultChannelPipeline.java:957) at io.netty.channel.AbstractChannel.close(AbstractChannel.java:232) at io.netty.channel.group.DefaultChannelGroup.close(DefaultChannelGroup.java:342) at io.netty.channel.group.DefaultChannelGroup.close(DefaultChannelGroup.java:221) at org.infinispan.server.core.transport.NettyTransport.stop(NettyTransport.java:135) at org.infinispan.server.core.AbstractProtocolServer.stop(AbstractProtocolServer.java:202) at org.infinispan.rest.RestServer.stop(RestServer.java:100) at org.infinispan.rest.helper.RestServerHelper.stop(RestServerHelper.java:86)
java.lang.RuntimeException: Test timed out after 300 seconds at java.base@11.0.9/java.lang.Object.$$BlockHound$$_wait(Native Method) at java.base@11.0.9/java.lang.Object.wait(Object.java) at java.base@11.0.9/java.lang.Object.wait(Object.java:328) at app//io.netty.util.concurrent.DefaultPromise.awaitUninterruptibly(DefaultPromise.java:274) at app//io.netty.channel.group.DefaultChannelGroupFuture.awaitUninterruptibly(DefaultChannelGroupFuture.java:178) at app//io.netty.channel.group.DefaultChannelGroupFuture.awaitUninterruptibly(DefaultChannelGroupFuture.java:41) at app//org.infinispan.server.core.transport.NettyTransport.stop(NettyTransport.java:149) at app//org.infinispan.server.core.AbstractProtocolServer.stop(AbstractProtocolServer.java:202) at app//org.infinispan.rest.RestServer.stop(RestServer.java:100) at app//org.infinispan.rest.helper.RestServerHelper.stop(RestServerHelper.java:86)
CacheV2ResourceTest.afterSuite() sometimes hangs this way. Initially I attributed the hanging to ISPN-12558, but it looks like a separate issue.