Scheduled Summarize job not completing

We use Job Services to schedule Schedule and Summarize tasks nightly.  Recently, we moved the database to a new server, and Job Services was moved from running on the SQL server to running on the WebLogic application server.  Now, the Schedule job finishes, and the Summary job, which is set to "run immediately after previous job number" starts, initiates the log file, but doesnt' write any entries to it.  The previous job, which writes to the same place, writes the file with no issues.  A check of the tasksum table shows that projects are being summarized, but I'm not sure whether