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From "Uwe Schindler (Commented) (JIRA)" <>
Subject [jira] [Commented] (SOLR-3038) Solrj should use javabin wireformat by default with updaterequests
Date Fri, 20 Apr 2012 16:44:41 GMT


Uwe Schindler commented on SOLR-3038:

bq. with XML, it it can read pre 3.x – the compatibility problem is with javabin

No, as any Solr 4.x server will throw IndexTooOldException when opening IndexReader/IndexWriter
on top of a old index format. Lucene 4.x drops support for pre-3.0 indexes (and Solr 1.4 is
Lucene 2.9).

To Upgrade from Solr 1.x to Solr 4.x, you have to transform your indexes using a Lucene 3.x
JAR and calling IndexUpgrader, to bring a pre-3.0 Index to 3.x format so 4.0 can read it.
> Solrj should use javabin wireformat by default with updaterequests
> ------------------------------------------------------------------
>                 Key: SOLR-3038
>                 URL:
>             Project: Solr
>          Issue Type: Improvement
>          Components: clients - java
>    Affects Versions: 4.0
>            Reporter: Sami Siren
>            Priority: Minor
> The javabin wire format is faster than xml when feeding Solr - it should become the default.

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