[jira] Commented: (ZOOKEEPER-22) Automatic request retries on connect failover

["qing yan (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-22?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12827990#action_12827990 ] 

qing yan commented on ZOOKEEPER-22:
-----------------------------------

One suggestion, can we make auto retry an option rather than mandatory?
My concern is what if client wants to abort the operation after receiving CONNECTION LOSS event:
He needs to either kill the thread or issue an explict undo operation afterwards, kind of awkward...

> Automatic request retries on connect failover
> ---------------------------------------------
>
>                 Key: ZOOKEEPER-22
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-22
>             Project: Zookeeper
>          Issue Type: New Feature
>          Components: c client, java client
>            Reporter: Patrick Hunt
>            Assignee: Mahadev konar
>             Fix For: 3.3.0
>
>         Attachments: zookeeper-22.docx, zookeeper-22.pdf
>
>
> Moved from SourceForge to Apache.
> http://sourceforge.net/tracker/index.php?func=detail&aid=1831412&group_id=209147&atid=1008547
> When a connection to a ZooKeeper server fails, all of the pending requests
> will return an error. In reality the requests should be resubmitted when
> the client reestablishes a connection to ZooKeeper.
> For read requests, it's no big deal to just reissue the request. For update
> requests, the ZooKeeper must be able to detect if the request has been
> processed and, if so, return the result of the previous execution;
> otherwise, it should process the request.

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