Tsz-wo Sze created HDDS-12826:
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Summary: Improve IncrementalContainerReport processing
Key: HDDS-12826
URL: https://issues.apache.org/jira/browse/HDDS-12826
Project: Apache Ozone
Issue Type: Improvement
Components: SCM
Reporter: Tsz-wo Sze
Assignee: Tsz-wo Sze
In IncrementalContainerReport processing, it currently looks up the same
datanode and the same container multiple times. When it receives a report,
# looks up datanode
# for each reported container:
-- looks up container
-- looks up the same datanode again in order to add/remove container
-- looks up the same container again in order to updateContainerStats
-- looks up the same container again in order to updateContainerState (note
that this is state and the previous is stats)
-- looks up the same container again in order to updateContainerReplica
Support the report has n containers. Then, it will have
- (n+1) datanode lookups, and
- 4 container lookups for each container.
It could have
- 1 datanode lookups, and
- 1 container lookups for each container.
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