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From "Edward Capriolo (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-6721) Streaming ingest needs to be able to send many heartbeats together
Date Sat, 29 Mar 2014 17:43:18 GMT

    [ https://issues.apache.org/jira/browse/HIVE-6721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13954359#comment-13954359
] 

Edward Capriolo commented on HIVE-6721:
---------------------------------------

[~alangates]

One trick I notice about thrift is you should always add structs at the end. If you insert
structs in the middle it tends to chance some internal numbering and make more noise then
it should when mergin the generated code.

> Streaming ingest needs to be able to send many heartbeats together
> ------------------------------------------------------------------
>
>                 Key: HIVE-6721
>                 URL: https://issues.apache.org/jira/browse/HIVE-6721
>             Project: Hive
>          Issue Type: Bug
>          Components: Locking
>    Affects Versions: 0.13.0
>            Reporter: Alan Gates
>            Assignee: Alan Gates
>             Fix For: 0.13.0
>
>         Attachments: HIVE-6721.patch, HIVE-6721.src-only.patch
>
>
> The heartbeat method added to HiveMetaStoreClient is intended for SQL operations where
the user will have one transaction and a hand full of locks.  But in the streaming ingest
case the client opens a batch of transactions together.  In this case we need a way for the
client to send a heartbeat for this batch of transactions rather than being forced to send
the heartbeats one at a time.



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