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From "Yiqun Lin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-14082) RBF: Add option to fail operations when a subcluster is unavailable
Date Sat, 17 Nov 2018 01:49:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-14082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16690191#comment-16690191

Yiqun Lin commented on HDFS-14082:

{quote}Then, I would keep it backwards compatible setting it to true.
The default value should be false i think. We are allowed to get partial list when someone
subcluster is unavailable by default.
{quote}What do you propose here? We definetely can make 6 a variable but not sure about 4/5.
I mean we make following change and not use specific number.
// Test the behavior when everything is fine
+    FileSystem fs = getRouterFileSystem();
+    FileStatus[] files = fs.listStatus(new Path("/"));
     int originalCount=  files.length
// simplify the assertion logic
assertNotEqual("...", originalCount , files.length);

> RBF: Add option to fail operations when a subcluster is unavailable
> -------------------------------------------------------------------
>                 Key: HDFS-14082
>                 URL: https://issues.apache.org/jira/browse/HDFS-14082
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Íñigo Goiri
>            Assignee: Íñigo Goiri
>            Priority: Major
>         Attachments: HDFS-14082.000.patch, HDFS-14082.001.patch
> When a subcluster is unavailable, we succeed operations like {{getListing()}}. We should
add an option to fail the operation if one of the subclusters is unavailable.

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