Oracle Database Errors or Warnings from Error ORA-04930 to ORA-04940

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ORA-04930: open sequence number failed or initial state is valid
Cause: Either Shared Sequence Number OS component was not installed properly, or an MC hardware failure may have occurred or a previous instance was not shut down properly.
Action: Verify that there are no background or foreground Oracle processes from a previous instance on this node using the OS command ps -ef|grep <instance_name>. Verify that there are no shared memory segments belonging to the user which owns the Oracle installation by isuing the ipcs -b OS command. If there are shared memory segments or processes still on the system, use svrmgrl to shutdown the instance with the abort option. If the instance is not up, verify that the cluster software and/or the hardware is installed and working. Log in as superuser and issue the cnxshow command. Are all of the nodes in the cluster listed? Are they members of the cluster? Is the communications between nodes okay? If the answer to any of these questions is false, contact Digital’s customer support organization.
ORA-04931: unable to set initial sequence number value

Cause: A call to the SSN failed to set the sequence number to its initial value, possibly caused by an MC hardware problem.
Action: Verify that the MC hardware is functioning properly. If it is not, contact Digital’s customer support organization. If it is, contact Oracle support.
ORA-04932: increment or adjust of sequence number failed
Cause: A call to the SSN failed to increment the sequence number.
Action: Verify that the MC hardware is functioning properly. If it is not, contact Digital’s customer support organization. If it is, contact Oracle support.
ORA-04933: initial service identifier is non-zero
Cause: A valid service identifier existed before the sequence number service was opened.
Action: Verify that the instance is completely shut down.

ORA-04934: unable to obtain the current sequence number
Cause: A call to the SSN failed to return its current value. Either there are many errors occurring on the MC hardware, or the sequence number has become invalid and cannot be validated.
Action: Verify that the MC hardware is functioning properly. If it is, contact Oracle Support.
ORA-04935: unable to get/convert SCN recovery lock
Cause: A process has timed out trying to get or convert the SCN recovery lock. Another process probably has the lock in EX or SHR mode, but is not releasing it.
Action: Contact Oracle Support.
ORA-04940: unsupported optimization of Oracle binary, check alert log for more info
Cause: ORACLE binary has been optimized with unsupported options or a required option has not been used.
Action: Check the documentation for a list of supported and required flags for the optimizing utility that you used to optimize ORACLE. Shutdown the instance, optimize ORACLE again with supported combination of options and restart the instance.

Above are list of Oracle Database Errors or Warnings from Error ORA-04930 to ORA-04940 received while performing certain operation against Oracle Database or related products.

What are Oracle Database Error Messages?

Oracle Error Messages may be returned while using products which are part of Oracle Database.  Each Oracle Database Error or Warning Message mentioned above contains the Warning or Error Message Statement, a short explanation of the probable causes of the Error message, and a recommended action.

Hope this was helpful.

Thanks,
SQLServerF1 Team
Information about Oracle Database Error Messages or Warning Messages on Windows and Linux Operating Systems.

 

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