SAP Knowledge Base Article - Preview

2937917 - Generalized issues in portal after upgrade such as blank screens, portal administration tools not loading content etc

Symptom

  • Microsoft SQL is used as database;
  • Application Server Java and Portal were upgraded to new version;
  • Portal applications are facing issues that may include but not limited to: blank screens, applications not loading content;
  • The following exception is found on defaulttrace files:
     
    Could not release lock after resource sync. Lock handle name: (...)
    com.sapportals.portal.pcd.gl.LockingException: Get of lock object failed
    Unexpected exception when executing Lock.selectSingleByAppRes() [Root exception is com.sap.portal.locks.LockingException: Unexpected exception when executing Lock.selectSingleByAppRes()]
    (...)
    Caused by: java.lang.NullPointerException: while trying to invoke the method java.lang.String.length() of a null object loaded from field com.microsoft.sqlserver.jdbc.SQLServerClobBase.value of an object loaded from local variable 'this'
            at com.microsoft.sqlserver.jdbc.SQLServerClobBase.length(SQLServerClob.java:388)
            at com.microsoft.sqlserver.jdbc.SQLServerClob.length(SQLServerClob.java:97)
            at com.sap.sql.jdbc.common.CommonWrappedClob.length(CommonWrappedClob.java:59)
            at com.sap.portal.locks.LockStatements.convertClobToString(LockStatements.java:1477)
            at com.sap.portal.locks.LockStatements.selectSingleByAppRes(LockStatements.java:287)
            ... 78 more


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Environment

  • NetWeaver Application Server Java
  • Enterprise Portal
  • Microsoft SQL 

Product

SAP NetWeaver 7.4 ; SAP NetWeaver 7.5

Keywords

system landscape, portal content, system administration, content administration, PCD, portal content directory, delayed deployment, lock, locking , KBA , EP-PIN-MIG , Upgrades issues (6.4 / 7.0 to >=7.3) , EP-PIN-PRT , Portal Runtime , BC-DB-MSS , SQL Server in SAP NetWeaver Products , BC-PIN-PCD , PCD Generic Layer Services , Problem

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