[
https://issues.apache.org/jira/browse/HDFS-9922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15993672#comment-15993672
]
Andrew Wang commented on HDFS-9922:
-----------------------------------
We need to keep the 2.9.0 fix version, since only major and minor versions are
supersets.
> Upgrade Domain placement policy status marks a good block in violation when
> there are decommissioned nodes
> ----------------------------------------------------------------------------------------------------------
>
> Key: HDFS-9922
> URL: https://issues.apache.org/jira/browse/HDFS-9922
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Chris Trezzo
> Assignee: Chris Trezzo
> Priority: Minor
> Fix For: 2.9.0, 3.0.0-alpha1, 2.8.2
>
> Attachments: HDFS-9922.branch-2.8.001.patch,
> HDFS-9922-trunk-v1.patch, HDFS-9922-trunk-v2.patch, HDFS-9922-trunk-v3.patch,
> HDFS-9922-trunk-v4.patch
>
>
> When there are replicas of a block on a decommissioned node,
> BlockPlacementStatusWithUpgradeDomain#isUpgradeDomainPolicySatisfied returns
> false when it should return true. This is because numberOfReplicas is the
> number of in-service replicas for the block and upgradeDomains.size() is the
> number of upgrade domains across all replicas of the block. Specifically, we
> hit this scenario when numberOfReplicas is equal to upgradeDomainFactor and
> upgradeDomains.size() is greater than numberOfReplicas.
> {code}
> private boolean isUpgradeDomainPolicySatisfied() {
> if (numberOfReplicas <= upgradeDomainFactor) {
> return (numberOfReplicas == upgradeDomains.size());
> } else {
> return upgradeDomains.size() >= upgradeDomainFactor;
> }
> }
> {code}
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
