Istvan Toth created HBASE-28613:
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Summary: Use streaming when marshalling protobuf REST output
Key: HBASE-28613
URL: https://issues.apache.org/jira/browse/HBASE-28613
Project: HBase
Issue Type: Improvement
Components: REST
Reporter: Istvan Toth
Assignee: Istvan Toth
We are currently marshalling protobuf into a byte array, and then send that to
the client.
This is both slow and memory intensive.
Using streaming instead results in huge perf improvements. In my bechnmark,
both the wall clock time was almost halved, while the REST server CPU usage was
reduced by 40%.
wall clock: 120s ->65s
Total REST CPU: 300s -> 180s
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