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From Otis Gospodnetic <otis.gospodne...@gmail.com>
Subject Re: OpenJDK or OracleJDK
Date Tue, 01 Oct 2013 03:07:26 GMT
Hi,

A while back I remember we notices some SPM users were having issues
with OpenJDK.  Since then we've been recommending Oracle's
implementation to our Solr and to SPM users.  At the same time, we
haven't seen any issues with OpenJDK in the last ~6 months.  Oracle
JDK is not slow. :)

Otis
--
Solr & ElasticSearch Support -- http://sematext.com/
Performance Monitoring -- http://sematext.com/spm



On Mon, Sep 30, 2013 at 11:02 PM, Shawn Heisey <solr@elyograg.org> wrote:
> On 9/30/2013 9:28 AM, Raheel Hasan wrote:
>> hmm why is that so?
>> Isnt Oracle's version a bit slow?
>
> For Java 6, the Sun JDK is the reference implementation.  For Java 7,
> OpenJDK is the reference implementation.
>
> http://en.wikipedia.org/wiki/Reference_implementation
>
> I don't think Oracle's version could really be called slow.  Sun
> invented Java.  Sun open sourced Java.  Oracle bought Sun.
>
> The Oracle implemetation is likely more conservative than some of the
> other implementations, like the one by IBM.  The IBM implementation is
> pretty aggressive with optimization, so aggressive that Solr and Lucene
> have a history of revealing bugs that only exist in that implementation.
>
> Thanks,
> Shawn
>

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