Hello,

 

I am suddenly facing this problem when I try to edit a page in xwiki. The changes get saved when I refresh the url however on saving it gives the following stack trace.

Any ideas why this happens and how to avoid it?

 

Regards,

Mrudula

 

A problem occured while trying to service your request. Please contact the support if this happens again.

Detailed information:

Error number 13007 in 3: Exception while loading lock
Wrapped Exception: could not execute query
com.xpn.xwiki.XWikiException: Error number 13007 in 3: Exception while loading lock
Wrapped Exception: could not execute query
        at com.xpn.xwiki.store.XWikiHibernateStore.loadLock(XWikiHibernateStore.java:1549)
        at com.xpn.xwiki.doc.XWikiDocument.getLock(XWikiDocument.java:2117)
        at com.xpn.xwiki.XWikiService.actionSave(XWikiService.java:446)
        at com.xpn.xwiki.web.ViewEditAction.execute(ViewEditAction.java:155)
        at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)
        at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
        at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:127)
        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.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
        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)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Unknown Source)
 
 
Wrapped Exception:
 
java.sql.SQLException: Unknown collation '#48' in table 'xwikilock.frm' definition
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2847)
        at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1531)
        at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1622)
        at com.mysql.jdbc.Connection.execSQL(Connection.java:2376)
        at com.mysql.jdbc.Connection.execSQL(Connection.java:2297)
        at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1860)
        at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1705)
        at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92)
        at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:92)
        at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:118)
        at org.hibernate.loader.Loader.getResultSet(Loader.java:1239)
        at org.hibernate.loader.Loader.doQuery(Loader.java:374)
        at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:210)
        at org.hibernate.loader.Loader.doList(Loader.java:1562)
        at org.hibernate.loader.Loader.list(Loader.java:1545)
        at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:375)
        at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:271)
        at org.hibernate.impl.SessionImpl.list(SessionImpl.java:840)
        at org.hibernate.impl.QueryImpl.list(QueryImpl.java:74)
        at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:603)
        at com.xpn.xwiki.store.XWikiHibernateStore.loadLock(XWikiHibernateStore.java:1539)
        at com.xpn.xwiki.doc.XWikiDocument.getLock(XWikiDocument.java:2117)
        at com.xpn.xwiki.XWikiService.actionSave(XWikiService.java:446)
        at com.xpn.xwiki.web.ViewEditAction.execute(ViewEditAction.java:155)
        at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)
        at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
        at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:127)
        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.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
        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)
        at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Unknown Source)
 

 


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