Description
Some changes made to the NettyClient.stop() logic related to netty 4 are causing the final worker thread to hang up indefinitely, preventing the map task jvm from exiting. In particular, the call to ProgressableUtils.awaitTerminationFuture() is blocking inside the ChannelFutureListener callback and deadlocking. Simply moving the ProgressableUtils.awaitTerminationFuture() calls outside of the ChannelFutureListener callback and placing them at the end of the NettyClient.stop() method seems to cure the problem.
Attachments
Attachments
Issue Links
- is related to
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GIRAPH-840 Upgrade to netty 4
- Resolved