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Posted to common-issues@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2016/05/31 23:39:13 UTC
[jira] [Commented] (HADOOP-13226) Support async call retry and
failover
[ https://issues.apache.org/jira/browse/HADOOP-13226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15308876#comment-15308876 ]
Hadoop QA commented on HADOOP-13226:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 0s {color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 5s {color} | {color:red} HADOOP-13226 does not apply to trunk. Rebase required? Wrong Branch? See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12806846/h10433_20160528c.patch |
| JIRA Issue | HADOOP-13226 |
| Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/9632/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Support async call retry and failover
> -------------------------------------
>
> Key: HADOOP-13226
> URL: https://issues.apache.org/jira/browse/HADOOP-13226
> Project: Hadoop Common
> Issue Type: New Feature
> Components: io, ipc
> Reporter: Xiaobing Zhou
> Assignee: Tsz Wo Nicholas Sze
> Attachments: h10433_20160524.patch, h10433_20160525.patch, h10433_20160525b.patch, h10433_20160527.patch, h10433_20160528.patch, h10433_20160528c.patch
>
>
> In current Async DFS implementation, file system calls are invoked and returns Future<?> immediately to clients. Clients call Future#get to retrieve final results. Future#get internally invokes a chain of callbacks residing in ClientNamenodeProtocolTranslatorPB, ProtobufRpcEngine and ipc.Client. The callback path bypasses the original retry layer/logic designed for synchronous DFS. This proposes refactoring to make retry also works for Async DFS.
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