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https://issues.apache.org/jira/browse/HDDS-14509?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-14509:
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Labels: pull-request-available (was: )
> Allow client to choose the read consistency level
> -------------------------------------------------
>
> Key: HDDS-14509
> URL: https://issues.apache.org/jira/browse/HDDS-14509
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Ivan Andika
> Assignee: Ivan Andika
> Priority: Major
> Labels: pull-request-available
>
> Currently, if OM follower read is enabled, all OM followers will serve read
> requests even if the client does not enable the follower read.
> For read-only client, this might be unexpected since they expect the OM
> follower to throw OMNotLeaderException.
> We can support some kind of OM request metadata to indicate to the OM whether
> the client enables the follower read or not. This can be initial
> implementation of configurable client read consistency.
> The idea of client-defined consistency level is inspired by other systems
> * RQLite: [https://rqlite.io/docs/api/read-consistency/]
> * Consul:
> [https://developer.hashicorp.com/consul/api-docs/features/consistency]
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