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Posted to dev@zookeeper.apache.org by "Flavio Paiva Junqueira (JIRA)" <ji...@apache.org> on 2009/07/20 15:45:14 UTC

[jira] Updated: (ZOOKEEPER-481) Add lastMessageSent to QuorumCnxManager

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-481?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Flavio Paiva Junqueira updated ZOOKEEPER-481:
---------------------------------------------

    Attachment: ZOOKEEPER-481.patch

> Add lastMessageSent to QuorumCnxManager
> ---------------------------------------
>
>                 Key: ZOOKEEPER-481
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-481
>             Project: Zookeeper
>          Issue Type: Bug
>          Components: leaderElection
>            Reporter: Flavio Paiva Junqueira
>         Attachments: ZOOKEEPER-481.patch
>
>
> Currently we rely on TCP for reliable delivery of FLE messages. However, as we concurrently drop and create new connections, it is possible that a message is sent but never received. With this patch, cnx manager keeps a list of last messages sent, and resends the last one sent. Receiving multiples copies is harmless. 

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