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Date: Fri, 10 Oct 2008 17:53:44 -0700 (PDT)
From: "stack (JIRA)" <jira@apache.org>
To: hbase-dev@hadoop.apache.org
Subject: [jira] Updated: (HBASE-748) Add an efficient way to batch update
 many rows
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     [ https://issues.apache.org/jira/browse/HBASE-748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack updated HBASE-748:
------------------------

    Attachment: hbase-748-v4.patch

Problem was deserializing the BatchUpdate, we'd use the no-arg BatchUpdate constructor.  The no-arg BatchUpdate waterfalls down to the constructor that takes all arguments.  It did this:

{code}
this.size = row.length;
{code}

If no-arg constructor, row was null.  The NPE wasn't making it out during deserialization.

This attached patch includes fix and some little cleanup.

> Add an efficient way to batch update many rows
> ----------------------------------------------
>
>                 Key: HBASE-748
>                 URL: https://issues.apache.org/jira/browse/HBASE-748
>             Project: Hadoop HBase
>          Issue Type: New Feature
>          Components: client
>    Affects Versions: 0.1.3, 0.2.0
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>             Fix For: 0.19.0
>
>         Attachments: hbase-748-v1.patch, hbase-748-v2.patch, hbase-748-v3.patch, hbase-748-v4.patch
>
>
> HBASE-747 introduced a simple way to batch update many rows. The goal of this issue is to have an enhanced version that will send many rows in a single RPC to each region server. To do this, the client code will have to figure which rows goes to which server, group them accordingly and then send them.

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