[
https://issues.apache.org/jira/browse/HDFS-14450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16824561#comment-16824561
]
Aihua Xu commented on HDFS-14450:
---------------------------------
[~wuweiwei] Is this issue always reproducible?
> Erasure Coding: decommissioning datanodes cause replicate a large number of
> duplicate EC internal blocks
> --------------------------------------------------------------------------------------------------------
>
> Key: HDFS-14450
> URL: https://issues.apache.org/jira/browse/HDFS-14450
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Wu Weiwei
> Assignee: Wu Weiwei
> Priority: Major
>
> {code:java}
> // [WARN] [RedundancyMonitor] : Failed to place enough replicas, still in
> need of 2 to reach 167 (unavailableStorages=[DISK, ARCHIVE],
> storagePolicy=BlockStoragePolicy{HOT:7, storageTypes=[DISK],
> creationFallbacks=[], replicationFallbacks=[ARCHIVE]}, newBlock=false) All
> required storage types are unavailable: unavailableStorages=[DISK, ARCHIVE],
> storagePolicy=BlockStoragePolicy{HOT:7, storageTypes=[DISK],
> creationFallbacks=[], replicationFallbacks=[ARCHIVE]}
> {code}
> In a large-scale cluster, decommissioning large-scale datanodes cause EC
> block groups to replicate a large number of duplicate internal blocks.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
