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Posted to hdfs-issues@hadoop.apache.org by "Íñigo Goiri (JIRA)" <ji...@apache.org> on 2019/03/03 01:35:00 UTC
[jira] [Commented] (HDFS-14316) RBF: Support unavailable
subclusters for mount points with multiple destinations
[ https://issues.apache.org/jira/browse/HDFS-14316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16782568#comment-16782568 ]
Íñigo Goiri commented on HDFS-14316:
------------------------------------
While testing this, I saw that the configurations this takes from the client are kind of slow given that we have the state of the Namenodes.
I added a couple configuration for managing time outs.
The default values are pretty aggressive but work well.
> RBF: Support unavailable subclusters for mount points with multiple destinations
> --------------------------------------------------------------------------------
>
> Key: HDFS-14316
> URL: https://issues.apache.org/jira/browse/HDFS-14316
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Íñigo Goiri
> Assignee: Íñigo Goiri
> Priority: Major
> Attachments: HDFS-14316-HDFS-13891.000.patch, HDFS-14316-HDFS-13891.001.patch, HDFS-14316-HDFS-13891.002.patch, HDFS-14316-HDFS-13891.003.patch, HDFS-14316-HDFS-13891.004.patch, HDFS-14316-HDFS-13891.005.patch, HDFS-14316-HDFS-13891.006.patch
>
>
> Currently mount points with multiple destinations (e.g., HASH_ALL) fail writes when the destination subcluster is down. We need an option to allow writing in other subclusters when one is down.
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