lucene-solr-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Moazzam Khan <moazz...@gmail.com>
Subject Re: Need help with field collapsing and out of memory error
Date Thu, 02 Sep 2010 13:18:36 GMT
Oh, I don't know if this matters but I store text fields in Solr but I
never get them from the index (I only get the ID field from the index
and everything else is pulled from DB cache). I store all the fields
just in case I need to debug search queries, etc and want to see the
data.

Regards,

Moazzam



On Wed, Sep 1, 2010 at 5:13 PM, Moazzam Khan <moazzamk@gmail.com> wrote:
> Hi,
>
>
> If this is how you configure the field collapsing cache, then I don't
> have it setup:
>
>
>  <fieldCollapsing>
>
>        <fieldCollapseCache
>      class="solr.FastLRUCache"
>      size="512"
>      initialSize="512"
>      autowarmCount="128"/>
>
>  </fieldCollapsing>
>
>
> I didnt add that part to solrconfig.xml.
>
> The way I setup field collapsing is I added this tag:
>
> <searchComponent name="collapse"
> class="org.apache.solr.handler.component.CollapseComponent" />
>
> Then I modified the default request handler (for standard queries) with this:
>
>  <requestHandler name="standard" class="solr.SearchHandler" default="true">
>    <!-- default values for query parameters -->
>     <lst name="defaults">
>       <str name="echoParams">explicit</str>
>
>     </lst>
>     <arr name="components">
>        <str>collapse</str>
>        <str>facet</str>
>        <str>highlight</str>
>        <str>debug</str>
>     </arr>
>  </requestHandler>
>
>
>
>
> On Wed, Sep 1, 2010 at 4:11 PM, Jean-Sebastien Vachon
> <js.vachon@videotron.ca> wrote:
>> can you tell us what are your current settings regarding the fieldCollapseCache?
>>
>> I had similar issues with field collapsing and I found out that this cache was responsible
for
>> most of the OOM exceptions.
>>
>> Reduce or even remove this cache from your configuration and it should help.
>>
>>
>> On 2010-09-01, at 1:10 PM, Moazzam Khan wrote:
>>
>>> Hi guys,
>>>
>>> I have about 20k documents in the Solr index (and there's a lot of
>>> text in each of them). I have field collapsing enabled on a specific
>>> field (AdvisorID).
>>>
>>> The thing is if I have field collapsing enabled in the search request
>>> I don't get correct count for the total number of records that
>>> matched. It always says that the number of "rows" I asked to get back
>>> is the number of total records it found.
>>>
>>> And, when I run a query with search criteria *:* (to get the number of
>>> total advisors in the index) solr runs of out memory and gives me an
>>> error saying
>>>
>>> SEVERE: java.lang.OutOfMemoryError: Java heap space
>>>        at java.nio.CharBuffer.wrap(CharBuffer.java:350)
>>>        at java.nio.CharBuffer.wrap(CharBuffer.java:373)
>>>        at java.lang.StringCoding$StringDecoder.decode(StringCoding.java:138)
>>>        at java.lang.StringCoding.decode(StringCoding.java:173)
>>>
>>>
>>> This is going to be a huge problem later on when we index 50k
>>> documents later on.
>>>
>>> These are the options I am running Solr with :
>>>
>>> java  -Xms2048M -Xmx2048M -XX:+UseConcMarkSweepGC -XX:PermSize=1024m
>>> MaxPermSize=1024m    -jar  start.jar
>>>
>>>
>>> Is there any way I can get the counts and not run out of memory?
>>>
>>> Thanks in advance,
>>> Moazzam
>>
>>
>

Mime
View raw message