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https://issues.apache.org/jira/browse/HDDS-7223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duong updated HDDS-7223:
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Description:
A container can move and change the Datanode details in it's lifecycle post
close of a container.
When a key needs to be read by the client, OM queries SCM to update the
location information for a container. This adds additional latency per request
and load on SCM which is directly proportional to the read load on OM.
This Jira tracks the design and implementation of improving read performance by
addressing this code path.
was:
A container can move and change the Datanode details in it's lifecycle post
close of a container.
When a key needs to be read by the client, OM queries SCM to update the
location information for a container. This adds additional latency per request
and load on SCM which is directly proportional to the read load on OM.
This Jira is track the design and implementation of improving read performance
by addressing this code path.
> Caching container location information in OM
> --------------------------------------------
>
> Key: HDDS-7223
> URL: https://issues.apache.org/jira/browse/HDDS-7223
> Project: Apache Ozone
> Issue Type: Improvement
> Components: Ozone Manager
> Reporter: Duong
> Assignee: Duong
> Priority: Major
> Labels: Performance
>
> A container can move and change the Datanode details in it's lifecycle post
> close of a container.
> When a key needs to be read by the client, OM queries SCM to update the
> location information for a container. This adds additional latency per
> request and load on SCM which is directly proportional to the read load on OM.
> This Jira tracks the design and implementation of improving read performance
> by addressing this code path.
>
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