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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ATLAS-629) Kafka messages in ATLAS_HOOK might be lost in HA mode at the instant of failover.
Date Thu, 12 May 2016 13:03:13 GMT

     [ https://issues.apache.org/jira/browse/ATLAS-629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hemanth Yamijala updated ATLAS-629:
-----------------------------------
    Attachment: ATLAS-629-2.patch

Latest patch addressing review comments on review board.

> Kafka messages in ATLAS_HOOK might be lost in HA mode at the instant of failover.
> ---------------------------------------------------------------------------------
>
>                 Key: ATLAS-629
>                 URL: https://issues.apache.org/jira/browse/ATLAS-629
>             Project: Atlas
>          Issue Type: Bug
>    Affects Versions: 0.7-incubating
>            Reporter: Hemanth Yamijala
>            Assignee: Hemanth Yamijala
>            Priority: Critical
>             Fix For: 0.7-incubating
>
>         Attachments: ATLAS-629-1.patch, ATLAS-629-2.patch, ATLAS-629.patch
>
>
> Write data to Kafka continuously from Hive hook - can do this by writing a script that
constantly creates tables. Bring down the Active instance with kill -9. Ensure writes continue
after passive becomes active. The expectation is the number of tables created and the number
of tables in Atlas match.
> In one test, wrote 180 tables and switched over 6 times from one instance to another.
Found that 1 table was lost of the lot. i.e. 179 tables were created, and 1 did not get in.



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