OOM on Solr Sort

[sundar shankar <su...@hotmail.com>]

Hi,    We are developing a product in a agile manner and the current implementation has a data of size just about a 800 megs in dev. The memory allocated to solr on dev (Dual core Linux box) is 128-512. My config=========   <!-- autocommit pending docs if certain criteria are met     <autoCommit>       <maxDocs>10000</maxDocs>      <maxTime>1000</maxTime>    </autoCommit>    --><filterCache      class="solr.LRUCache"      size="512"      initialSize="512"      autowarmCount="256"/>    <queryResultCache      class="solr.LRUCache"      size="512"      initialSize="512"      autowarmCount="256"/>    <documentCache      class="solr.LRUCache"      size="512"      initialSize="512"      autowarmCount="0"/>    <enableLazyFieldLoading>true</enableLazyFieldLoading>My Field=======<fieldType name="autocomplete" class="solr.TextField">                <analyzer type="index">                        <tokenizer class="solr.KeywordTokenizerFactory"/>                <filter class="solr.LowerCaseFilterFactory" />                    <filter class="solr.PatternReplaceFilterFactory" pattern="([^a-z0-9])" replacement="" replace="all" />                    <filter class="solr.EdgeNGramFilterFactory" maxGramSize="100" minGramSize="1" />               </analyzer>        <analyzer type="query">            <tokenizer class="solr.KeywordTokenizerFactory"/>                <filter class="solr.LowerCaseFilterFactory" />                <filter class="solr.PatternReplaceFilterFactory" pattern="([^a-z0-9])" replacement="" replace="all" />                <filter class="solr.PatternReplaceFilterFactory" pattern="^(.{20})(.*)?" replacement="$1" replace="all" />        </analyzer>    </fieldType>Problem======I execute a query that returns 24 rows of result. I pick 10 out of it. I have no problem when I execute this. But When I do sort it by a String field that is fetched from this result. I get an OOM. I am able to execute several other queries with no problem. Just having a sort asc clause added to the query throws an OOM. Why is that. What should I have ideally done. My config on QA is pretty similar to the dev box and probably has more data than on dev. It didnt throw any OOM during the integration test. The Autocomplete is a new field we added recently.Another point is that the indexing is done with a field of type string <field name="XXX" type="string" indexed="true" stored="true" termVectors="true"/>and the autocomplete field is a copy field.The sorting is done based on string field.Please do lemme know what mistake am I doing?RegardsSundarP.S: The stack trace of the exception is Caused by: org.apache.solr.client.solrj.SolrServerException: Error executing query at org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:86) at org.apache.solr.client.solrj.impl.BaseSolrServer.query(BaseSolrServer.java:101) at com.apollo.sisaw.solr.service.AbstractSolrSearchService.makeSolrQuery(AbstractSolrSearchService.java:193) ... 105 moreCaused by: org.apache.solr.common.SolrException: Java heap space  java.lang.OutOfMemoryError: Java heap space  at org.apache.lucene.search.FieldCacheImpl$10.createValue(FieldCacheImpl.java:403)  at org.apache.lucene.search.FieldCacheImpl$Cache.get(FieldCacheImpl.java:72)  at org.apache.lucene.search.FieldCacheImpl.getStringIndex(FieldCacheImpl.java:352)  at org.apache.lucene.search.FieldSortedHitQueue.comparatorString(FieldSortedHitQueue.java:416)  at org.apache.lucene.search.FieldSortedHitQueue$1.createValue(FieldSortedHitQueue.java:207)  at org.apache.lucene.search.FieldCacheImpl$Cache.get(FieldCacheImpl.java:72)  at org.apache.lucene.search.FieldSortedHitQueue.getCachedComparator(FieldSortedHitQueue.java:168)  at org.apache.lucene.search.FieldSortedHitQueue.<init>(FieldSortedHitQueue.java:56)  at org.apache.solr.search.SolrIndexSearcher.getDocListNC(SolrIndexSearcher.java:907)  at org.apache.solr.search.SolrIndexSearcher.getDocListC(SolrIndexSearcher.java:838)  at org.apache.solr.search.SolrIndexSearcher.search(SolrIndexSearcher.java:269)  at org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:160)  at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:156)  at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:128)  at org.apache.solr.core.SolrCore.execute(SolrCore.java:1025)  at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:338)  at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:272)  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)  at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)  at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)  at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)  at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)  at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)  at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)  at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)  at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)  at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)  at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)  at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
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