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https://issues.apache.org/jira/browse/HDFS-1505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13032186#comment-13032186
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Todd Lipcon commented on HDFS-1505:
-----------------------------------
+ if (storage.getNumStorageDirs(NameNodeDirType.IMAGE) == 0 &&
+ storage.getNumStorageDirs(NameNodeDirType.EDITS) == 0 &&
+ storage.getNumStorageDirs(NameNodeDirType.IMAGE_AND_EDITS) == 0) {
+ throw new IOException("Failed to save any storage directories while
saving namespace");
I think the check for .EDITS is incorrect -- if we lose all the IMAGE and
IMAGE_AND_EDITS dirs, but still have EDITS dirs, we're still screwed.
> saveNamespace appears to succeed even if all directories fail to save
> ---------------------------------------------------------------------
>
> Key: HDFS-1505
> URL: https://issues.apache.org/jira/browse/HDFS-1505
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 0.22.0, 0.23.0
> Reporter: Todd Lipcon
> Assignee: Jakob Homan
> Priority: Blocker
> Fix For: 0.22.0
>
> Attachments: hdfs-1505-22.0.patch, hdfs-1505-test.txt,
> hdfs-1505-trunk.0.patch
>
>
> After HDFS-1071, saveNamespace now appears to "succeed" even if all of the
> individual directories failed to save.
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