If anyone if following this one, just an update. We are not going to
upgrade to 4.5.1 in order to see if the String facet performance problem
has been fixed. Instead we have made a few hacks around our data so that
we can store the c-field (c_dstr_doc_sto) as long instead
(c_dlng_doc_sto). So now we only need to struggle with long-facet
performance. There is a performance issue with facets on longs though,
but I will tell about in another mailing-thread - need your input on
what solution you prefer.
Regards, Per Steffensen
On 11/6/13 12:15 PM, Per Steffensen wrote:
On 11/6/13 11:43 AM, Robert Muir wrote:
Before lucene 4.5 docvalues were loaded entirely into RAM.
I'm not going to waste time debugging any old code releases here, you
should upgrade to the latest release!
Ok, thanks!
I do not consider it a bug (just a performance issue), so no debugging
needed.
It is just that we do not want to spend time upgrading to 4.5 if there
is not a justified hope/explanation that it will probably make things
better. But I guess there is.
One short question: Will 4.5 index things differently (compared to
4.4) for documents with fields like I showed earlier? Im basically
asking if we need to reindex the 12billion documents again after
upgrading to 4.5, or if we ought to be able to deploy 4.5 on top of
the already indexed documents.
Regards, Per Steffensen
