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From "Shawn Heisey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-2204) Cross-version replication broken by new javabin format
Date Sun, 14 Aug 2011 18:52:32 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13084883#comment-13084883
] 

Shawn Heisey commented on SOLR-2204:
------------------------------------

bq. I was looking at this and have a half-baked untried patch which handles the client side
of the negotiation, but before spending more time on it I was hoping to get some opinions.

I worked around this in my own installation by modifying my build system.  It can now run
two independent copies, one for each set of shards.  By the time I was ready for that, 3.2
was out.  When I upgraded one of the sets, I eliminated replication and began building them
independently.  I'm still running that way, even after upgrading both sets to 3.2.  It's actually
been advantageous, because I now have a full-scale testbed.  Before I could run tests with
a single shard on independent hardware, now I can do it on the entire index because the offline
set is built independently.  

Thank you for looking into the problem.  Hopefully it will save someone a lot of headache
in the future.

> Cross-version replication broken by new javabin format
> ------------------------------------------------------
>
>                 Key: SOLR-2204
>                 URL: https://issues.apache.org/jira/browse/SOLR-2204
>             Project: Solr
>          Issue Type: Bug
>          Components: replication (java)
>    Affects Versions: 3.1
>         Environment: Linux idxst0-a 2.6.18-194.3.1.el5.centos.plusxen #1 SMP Wed May
19 09:59:34 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux
> java version "1.6.0_20"
> Java(TM) SE Runtime Environment (build 1.6.0_20-b02)
> Java HotSpot(TM) 64-Bit Server VM (build 16.3-b01, mixed mode)
>            Reporter: Shawn Heisey
>             Fix For: 3.4, 4.0
>
>         Attachments: SOLR-2204.patch
>
>
> Slave server is branch_3x, revision 1027974.  Master server is 1.4.1.  Replication fails
because of the new javabin format.
> SEVERE: Master at: http://HOST:8983/solr/live/replication is not available. Index fetch
failed. Exception: Invalid version or the data in not in 'javabin' format
> Switching Solr's internally generated requests to XML, or adding support for both javabin
versions would get rid of this problem.  I do not know how to do either of these things.

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