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From "nkeywal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3912) Detecting and avoiding stale datanodes for writing
Date Thu, 11 Oct 2012 16:13:03 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13474272#comment-13474272

nkeywal commented on HDFS-3912:

Very good news: It works as expected :-). I don't have anymore write or read errors / timeouts
during the HBase recovery. So we can now have a mttr under the minute in HBase.

> Detecting and avoiding stale datanodes for writing
> --------------------------------------------------
>                 Key: HDFS-3912
>                 URL: https://issues.apache.org/jira/browse/HDFS-3912
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>    Affects Versions: 3.0.0
>            Reporter: Jing Zhao
>            Assignee: Jing Zhao
>         Attachments: HDFS-3912.001.patch, HDFS-3912.002.patch, HDFS-3912.003.patch, HDFS-3912.004.patch,
HDFS-3912.005.patch, HDFS-3912.006.patch, HDFS-3912.007.patch, HDFS-3912.008.patch, HDFS-3912.009.patch,
HDFS-3912-010.patch, HDFS-3912-branch-1.1-001.patch
> 1. Make stale timeout adaptive to the number of nodes marked stale in the cluster.
> 2. Consider having a separate configuration for write skipping the stale nodes.

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