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Date: Tue, 30 Dec 2014 10:57:48 -0700
From: Shawn Heisey <apache@elyograg.org>
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To: solr-user@lucene.apache.org
Subject: Re: How large is your solr index?
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On 12/30/2014 1:19 AM, Bram Van Dam wrote:
> We had a look at Heliosearch a while ago and found it unsuitable. Seems
> like they're trying to make use of some native x86_64 code and HotSpot
> JVM specific features which we can't use. Some of our clients use IBM's
> JVM so we're pretty much limited to strictly Java.

Using IBM's Java is not recommended at all, for Solr or Heliosearch.
They enable many optimizations by default that are known to cause bugs
with Lucene and Solr.  Lucene has uncovered bugs with all JVMs, but the
bugs in IBM's Java are particularly persistent, and IBM seems to have
little interest in learning about them or fixing them.  The project does
have a good relationship with Oracle for problems in their code, so that
is the recommended implementation.

> That's my understanding as well. Lucene Revolution is on the wrong side
> of the Atlantic for me. But there's an Open Source Search devroom at
> FOSDEM this year, which seems like a sensible place to discuss these
> things. I'll make a post on the relevant mailing lists about this after
> the holidays if anyone is interested.

Lucene Revolution has happened in Europe.  In 2013, it was in Dublin.  I
don't have any information on the 2015 location.  There is also
something called Lucene EuroCon, but I can find no information about a
new event.  ApacheCon is another possibility, and the 2014 EU conference
was in Budapest.

Thanks,
Shawn