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https://issues.apache.org/jira/browse/HDDS-12628?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang updated HDDS-12628:
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Description:
HDDS-6957 implemented the logic to prioritize under replicated containers.
However it does not further prioritize those that are minimally replicated
(excluding: decommissioned nodes and corrupt replicas) and thus in danger of
missing permanently.
As a matter of fact, HDFS implements that logic in LowRedundancyBlocks
[https://github.com/apache/hadoop/blob/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/LowRedundancyBlocks.java]
The same logic could be applicable to Ozone container replication.
was:
HDDS-6957 implemented the logic to prioritize under replicated containers.
However it does not prioritize those that are minimally replicated and thus in
danger of missing permanently.
As a matter of fact, HDFS implements that logic in LowRedundancyBlocks
[https://github.com/apache/hadoop/blob/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/LowRedundancyBlocks.java]
The same logic could be applicable to Ozone container replication.
> Prioritize the most under replicated containers for re-replication
> ------------------------------------------------------------------
>
> Key: HDDS-12628
> URL: https://issues.apache.org/jira/browse/HDDS-12628
> Project: Apache Ozone
> Issue Type: Improvement
> Reporter: Wei-Chiu Chuang
> Priority: Major
>
> HDDS-6957 implemented the logic to prioritize under replicated containers.
> However it does not further prioritize those that are minimally replicated
> (excluding: decommissioned nodes and corrupt replicas) and thus in danger of
> missing permanently.
> As a matter of fact, HDFS implements that logic in LowRedundancyBlocks
> [https://github.com/apache/hadoop/blob/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/LowRedundancyBlocks.java]
> The same logic could be applicable to Ozone container replication.
>
>
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