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From "Swapnil Ghike (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (KAFKA-779) Standardize Zk data structures for Re-assign partitions and Preferred replication election
Date Mon, 04 Mar 2013 04:29:12 GMT

     [ https://issues.apache.org/jira/browse/KAFKA-779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Swapnil Ghike updated KAFKA-779:

    Attachment: kafka-779-v1.patch


1. Zk data format standardization for admin/reassign_partitions and admin/preffered_replica_election.
(These changes still hit the bug mentioned in KAFKA-780 which occurred without the changes
in this patch.)

2. I changed Json manipulation related functions in Utils, because mergeJsonObjects had a
bug which could screw up a JSON string that included a nested object or an array, while attempting
to sort the fields in the string. I replaced it with a new function mergeJsonFields and created
a new function mapToJsonFields. As it turned out, these two functions are reusable and it
helped reduce some lines of code in Utils. 

3. Ran optimize imports on the entire source code. Three files unrelated to this patch have
been touched.

Testing done - 
i. Unit tests pass
ii. Verified the format of all Zk data structures as mentioned in the wiki to ensure 2 above
didn't break anything. Verified that the fields are sorted.
iii. Tested reassign-partitions tool and preferred-replica-election admin tools, but they
hit the exception mentioned in KAFKA-780.
> Standardize Zk data structures for Re-assign partitions and Preferred replication election
> ------------------------------------------------------------------------------------------
>                 Key: KAFKA-779
>                 URL: https://issues.apache.org/jira/browse/KAFKA-779
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.8
>            Reporter: Swapnil Ghike
>            Assignee: Swapnil Ghike
>            Priority: Blocker
>              Labels: kafka-0.8, p2
>             Fix For: 0.8
>         Attachments: kafka-779-v1.patch
> Follow the schema at https://cwiki.apache.org/confluence/display/KAFKA/Kafka+data+structures+in+Zookeeper

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