Deletion of duplicates fails with
org.apache.solr.client.solrj.SolrServerException
----------------------------------------------------------------------------------
Key: NUTCH-1251
URL: https://issues.apache.org/jira/browse/NUTCH-1251
Project: Nutch
Issue Type: Bug
Components: indexer
Affects Versions: 1.4
Environment: Any crawl where the number of URLs in Solr exceeds 1024
(the default max number of clusters in Lucene boolean query).
Reporter: Arkadi Kosmynin
Priority: Critical
Deletion of duplicates fails. This happens because the "get all" query used to
get Solr index size is "id:[* TO *]", which is a range query. Lucene is trying
to expand it to a Boolean query and gets as many clauses as there are ids in
the index. This is too many in a real situation and it throws an exception.
To correct this problem, change the "get all" query (SOLR_GET_ALL_QUERY) to
"*:*", which is the standard Solr "get all" query.
Indexing log extract:
java.io.IOException: org.apache.solr.client.solrj.SolrServerException: Error
executing query
at
org.apache.nutch.indexer.solr.SolrDeleteDuplicates$SolrInputFormat.getRecordReader(SolrDeleteDuplicates.java:236)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:338)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307)
at
org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:177)
Caused by: org.apache.solr.client.solrj.SolrServerException: Error executing
query
at
org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:95)
at org.apache.solr.client.solrj.SolrServer.query(SolrServer.java:118)
at
org.apache.nutch.indexer.solr.SolrDeleteDuplicates$SolrInputFormat.getRecordReader(SolrDeleteDuplicates.java:234)
... 3 more
Caused by: org.apache.solr.common.SolrException: Internal Server Error
Internal Server Error
request: http://localhost:8081/arch/select?q=id:[* TO
*]&fl=id,boost,tstamp,digest&start=0&rows=82938&wt=javabin&version=2
at
org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:430)
at
org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:244)
at
org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:89)
... 5 more
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