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java.lang.OutOfMemoryError: Java heap space at org.apache.solr.handler.ReplicationHandler$DirectoryFileStream.initWrite( at org.apache.solr.handler.ReplicationHandler$DirectoryFileStream.write( at org.apache.solr.core.SolrCore$9.write( at org.apache.solr.response.QueryResponseWriterUtil.writeQueryResponse( at org.apache.solr.servlet.HttpSolrCall.writeResponse(