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https://issues.apache.org/jira/browse/HDFS-17587?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mohamed Aashif updated HDFS-17587:
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Attachment: After decommissioning.png
Before decommissioning.png
Description:
When DNs are marked for Decommission or Maintenance, we are reducing the
capacity used, capacity non-dfs used, capacity remaining, and total capacity in
FSNamesystem metrics bean.
But the same is not handled properly StorageTypeStats metric.
Steps:
# Observe FSNamesystem bean, and BlockManager bean in a healthy cluster.
# Decommission/Mark for maintenance one of the DNs in the cluster.
# Observe the same beans, and compare with the ones taken before. (Attached
screenshots for ref.)
> "StorageTypeStats" Metric should not include decommissioned/in-maintenance
> nodes
> --------------------------------------------------------------------------------
>
> Key: HDFS-17587
> URL: https://issues.apache.org/jira/browse/HDFS-17587
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Reporter: Mohamed Aashif
> Priority: Major
> Attachments: After decommissioning.png, Before decommissioning.png
>
>
> When DNs are marked for Decommission or Maintenance, we are reducing the
> capacity used, capacity non-dfs used, capacity remaining, and total capacity
> in FSNamesystem metrics bean.
> But the same is not handled properly StorageTypeStats metric.
> Steps:
> # Observe FSNamesystem bean, and BlockManager bean in a healthy cluster.
> # Decommission/Mark for maintenance one of the DNs in the cluster.
> # Observe the same beans, and compare with the ones taken before. (Attached
> screenshots for ref.)
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