Hello,
I am using D2R server with a big DB (around 175GB). when launching the
server from terminal (not deployed in Tomcat) I am getting a Java Heap Space
error, the stack trace is as follows:
java.lang.OutOfMemoryError: Java heap space
at com.mysql.jdbc.MysqlIO.nextRowFast(MysqlIO.java:1577)
at com.mysql.jdbc.MysqlIO.nextRow(MysqlIO.java:1401)
at com.mysql.jdbc.MysqlIO.readSingleRowSet(MysqlIO.java:2840)
at com.mysql.jdbc.MysqlIO.getResultSet(MysqlIO.java:468)
at com.mysql.jdbc.MysqlIO.readResultsForQueryOrUpdate(MysqlIO.java:2534)
at com.mysql.jdbc.MysqlIO.readAllResults(MysqlIO.java:1749)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2159)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2548)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2477)
at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1422)
at
de.fuberlin.wiwiss.d2rq.sql.QueryExecutionIterator.ensureQueryExecuted(QueryExecutionIterator.java:146)
at
de.fuberlin.wiwiss.d2rq.sql.QueryExecutionIterator.tryFetchNextRow(QueryExecutionIterator.java:76)
at
de.fuberlin.wiwiss.d2rq.sql.QueryExecutionIterator.hasNext(QueryExecutionIterator.java:50)
at
de.fuberlin.wiwiss.d2rq.find.RelationToTriplesIterator.tryFillTripleQueue(RelationToTriplesIterator.java:107)
at
de.fuberlin.wiwiss.d2rq.find.RelationToTriplesIterator.hasNext(RelationToTriplesIterator.java:72)
at
com.hp.hpl.jena.util.iterator.NiceIterator$1.hasNext(NiceIterator.java:86)
at
com.hp.hpl.jena.util.IteratorCollection.iteratorToList(IteratorCollection.java:52)
at
com.hp.hpl.jena.graph.impl.SimpleBulkUpdateHandler.addIterator(SimpleBulkUpdateHandler.java:57)
at
com.hp.hpl.jena.graph.impl.SimpleBulkUpdateHandler.add(SimpleBulkUpdateHandler.java:53)
at de.fuberlin.wiwiss.d2rq.GraphD2RQ.classMapInventory(GraphD2RQ.java:197)
at de.fuberlin.wiwiss.d2rs.DirectoryServlet.doGet(DirectoryServlet.java:35)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
I suppose it is a matter of the -Xmx parameter configuration for Jetty
Server, but I really do not know how to modify this. Any ideas?
Thanks in advanced.
Best Regards
--
Iker Huerga
http://www.linkatu.net
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