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https://issues.apache.org/jira/browse/HDDS-15138?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-15138:
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Labels: pull-request-available (was: )
> SCM safemode pipeline rules should honor default EC replication config
> ----------------------------------------------------------------------
>
> Key: HDDS-15138
> URL: https://issues.apache.org/jira/browse/HDDS-15138
> Project: Apache Ozone
> Issue Type: Improvement
> Reporter: Aryan Gupta
> Assignee: Aryan Gupta
> Priority: Major
> Labels: pull-request-available
>
> Today SCM safemode pipeline exit checks are effectively hardcoded to
> {{{}RATIS/THREE{}}}, which is incorrect when cluster default replication is
> EC. In EC-default deployments, safemode should validate pipelines for the
> configured default replication instead of only {{{}RATIS/THREE{}}}.
> This patch generalizes safemode pipeline validation to use
> {{{}ReplicationConfig.getDefault(conf){}}}:
> * {{HealthyPipelineSafeModeRule}} now evaluates pipelines matching the
> configured default replication config and uses required node count from that
> config.
> * {{OneReplicaPipelineSafeModeRule}} now tracks/report-validates pipelines
> matching the configured default replication config.
> To keep behavior consistent, {{BackgroundPipelineCreator}} is updated to
> include EC pipeline creation when default replication type is EC, while
> preserving existing RATIS behavior when EC is not configured.
> h3. Expected outcome
> * RATIS default: behavior remains unchanged.
> * EC default: safemode pipeline checks validate EC pipelines, and background
> creation can create EC pipelines accordingly.
> h3. Validation
> Added/updated SCM tests for EC-default and RATIS-default paths. Focused suite
> passes:
> * {{TestHealthyPipelineSafeModeRule}}
> * {{TestOneReplicaPipelineSafeModeRule}}
> * {{TestSCMSafeModeManager}}
> * {{TestBackgroundPipelineCreator}}
> h3. Note
> For EC-default setups in SCM safemode paths, ensure both are set:
> * {{ozone.replication.type=EC}}
> * {{ozone.replication=RS-3-2-1024k}}
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