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Posted to common-issues@hadoop.apache.org by "Aaron T. Myers (JIRA)" <ji...@apache.org> on 2011/06/16 01:04:48 UTC

[jira] [Commented] (HADOOP-7380) Common portion of HDFS-1973

    [ https://issues.apache.org/jira/browse/HADOOP-7380?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13050104#comment-13050104 ] 

Aaron T. Myers commented on HADOOP-7380:
----------------------------------------

Another open issue which needs to be addressed is synchronization around the {{FailoverProxyProvider}} on failover. This will be necessary since multiple threads may be accessing a single RPC proxy, and we don't want this to effectively cause the client to failover multiple times spuriously.

I'll deal with this once I get confirmation that the general approach is sound.

> Common portion of HDFS-1973
> ---------------------------
>
>                 Key: HADOOP-7380
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7380
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: ipc
>    Affects Versions: 0.23.0
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>             Fix For: 0.23.0
>
>         Attachments: hadoop-7380.0.patch, hadoop-7380.1.patch
>
>
> Implementing client failover will likely require changes to {{o.a.h.io.ipc}} and/or {{o.a.h.io.retry}}. This JIRA is to track those changes.

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