René Cordier created JAMES-3997:
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Summary: Netty backpressure for IMAP Fetch
Key: JAMES-3997
URL: https://issues.apache.org/jira/browse/JAMES-3997
Project: James Server
Issue Type: Improvement
Affects Versions: 3.8.0, 3.8.1
Reporter: René Cordier
Fix For: 3.9.0
Some OOM IMAP issues on a production environment using James have been
detected, regarding the method IMAP FETCH.
We seem to do to write out:
{code:java}
channel.writeAndFlush()Unpooled.wrappedBuffer(buffer));
{code}
without any checks. Making the method using intermediate buffers in a slow
network, potentially exploding the memory.
Need to investigate this issue and enhance this processus, maybe by using Netty
backpressure instead?
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