![]() ![]() In this case, you may need to perform media recovery on the database from the loss of a redo log file. Oracle Database returns an error, and the database instance shuts down. LGWR cannot access the next group at a log switch because the group needs to be archivedĭatabase operation temporarily halts until the group becomes available or until the group is archived.Īll members of the next group are inaccessible to LGWR at a log switch because of media failure LGWR writes to the available members of a group and ignores the unavailable members. LGWR can successfully write to at least one member in a group Failure writing to target file at .ExtractFilesFromCabinet(String bstr TempDirectory, String bstrCabFileLocation). The specific reaction of LGWR when a redo log member is unavailable depends on the reason for the lack of availability, as summarized in the table that follows. Whenever LGWR cannot write to a member of a group, the database marks that member as INVALID and writes an error message to the LGWR trace file and to the database alert log to indicate the problem with the inaccessible files. ![]()
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