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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