Sergey Soldatov created HDDS-16407:
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Summary: In OM serialize the Ratis reply eagerly so the retry
cache holds bytes, not the OMResponse tree
Key: HDDS-16407
URL: https://issues.apache.org/jira/browse/HDDS-16407
Project: Apache Ozone
Issue Type: Improvement
Components: OM
Affects Versions: 2.2.1
Reporter: Sergey Soldatov
Assignee: Sergey Soldatov
OMRatisHelper.convertResponseToMessage returned a lambda Message that captured
the parsed OMResponse and serialized it on every getContent() call. Ratis keeps
the reply Message of every applied write in its retry cache, on the leader and
on every follower, for the retry cache timeout, and the cache has no size
bound. So under a write burst each OM retained the whole parsed response tree
(KeyInfo, locations, ACLs) per request for that long, and re-serialized it each
time the content was read.
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