During the update to Symantec Messaging Gateway (SMG) version 10.0 a number of error messages are logged to the BrightmailLog.log and catalina.out files but, apart from these messages, the update appears to have completed successfully. 

catalina.out:

Mar 29, 2012 10:48:44 AM org.apache.catalina.session.StandardManager doUnload
SEVERE: IOException while saving persisted sessions: java.io.FileNotFoundException: /data/bcc/work/Catalina/localhost/_/SESSIONS.ser (No such file or directory)
java.io.FileNotFoundException: /data/bcc/work/Catalina/localhost/_/SESSIONS.ser (No such file or directory)
at java.io.FileOutputStream.open(Native Method)
at java.io.FileOutputStream.<init>(Unknown Source)
at java.io.FileOutputStream.<init>(Unknown Source)

BrightmailLog.log:

Mar 29 2012 10:44:59 [BrightmailScheduler_Worker-14] ERROR - Statistic poller error. Cannot retrieve statistic information.
com.brightmail.dl.DataAccessException: An unexpected database error has occurred. Please contact your system administrator. ; nested exception is:
  java.sql.BatchUpdateException: Table 'brightmail.report_im_sender_buffer' doesn't exist

Mar 29 2012 10:44:59 [BrightmailScheduler_Worker-5] ERROR - Cannot retrieve the IM Scanner configuration.
com.brightmail.dl.DataAccessException: An unexpected database error has occurred. Please contact your system administrator. ; nested exception is:
  com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: Unknown column 'site.ima_config' in 'field list'

Mar 29 2012 10:46:59 [BrightmailScheduler_Worker-6] ERROR - Incremental update poller error. Cannot publish the incremental update.
com.brightmail.common.BrightmailException: Cannot retrieve the IM Scanner configuration.

Mar 29 2012 10:47:09 [Thread-80] ERROR - Cannot obtain the pause mode status.

Mar 29 2012 10:47:09 [Thread-80] ERROR - /usr/bin/sudo: /usr/kerberos/lib/libk5crypto.so.3: no version information available (required by /lib/libssl.so.6)/usr/bin/sudo: /usr/kerberos/lib/libkrb5.so.3: no version information available (required by /lib/libssl.so.6)/opt/msys/3rdParty/bin/perl: symbol lookup error: /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi/auto/IO/Tty/Tty.so: undefined symbol: Perl_Tstack_sp_ptr

Mar 29 2012 10:47:09 [BrightmailScheduler_Worker-6] ERROR - scheduled task failed to complete: com.brightmail.bl.status.StatusTask
java.lang.NullPointerException

Mar 29 2012 10:48:45 [main] ERROR - Session event listener threw exception
java.lang.NullPointerException

During the update process, the Control Center web application continues to run a number of automated processes. As the underlying system is updated, these automatd processes generate errors as the files and systems they depend upon or interact with are changed or removed.

These log entries are essentially noise and can be ignored. In future releases, Symantec will limit spurious errors during update by either shutting down the control center process or otherwise controlling processes that may generate spurious errors during update.