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https://issues.apache.org/jira/browse/SOLR-2204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13140128#comment-13140128
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Robert Muir commented on SOLR-2204:
-----------------------------------
One of the reasons I was motivated to change the javabin format, is because i
went and actually looked at source code to solr clients in other languages and
saw that they implemented the protocol wrong: no surprise because
CESU-8/Modified UTF-8 is really a crazy java thing.
The big downside to then sending/receiving UTF-8 when they should send CESU-8
or vice versa is that it breaks unicode support in subtle ways.
So, I don't really want to see CESU-8 come "back". Its really completely absurd
to send Modified utf-8 over the wire. I will do everything i can to prevent
this!
> 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: 3.5, 4.0
>
> Attachments: SOLR-2204.patch, 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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