Till created ASTERIXDB-2361:
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Summary: Memory Leak Due to Netty Close Listeners
Key: ASTERIXDB-2361
URL: https://issues.apache.org/jira/browse/ASTERIXDB-2361
Project: Apache AsterixDB
Issue Type: Bug
Components: HYR - Hyracks
Affects Versions: 0.9.3
Reporter: Till
Assignee: Till
Fix For: 0.9.4
Currently, each ChunkedResponse object creates a PrintWriter that allocates 8K for its StreamEncoder.
There is a channel close listener that is registered in ChunkedNettyOutputStream that prevents
the ChunkedResponse from being garbage collected until the request connection is closed.
However, if the connection keepAlive is set, the connection will not be closed until the client
decides to close it and therefore the ChunkedResponse can't be garbage collected until
then. We need to revisit registering the close listeners and ensure all request based resources
can be released as soon as the response is closed.
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