HOW TO KNOW IF THERE ARE ANY COMMON CIPHER SUITES BETWEEN ORACLE DATABASE AND TARGET ENDPORINT?
WRITING ….
ORA-29516: AURORA ASSERTION FAILURE: ASSERTION FAILURE AT OEX.C:359
SYMPTOMS During a PSU patch’s post steps, I had an unusual error that was intermittent. Sometimes the post step script completed successfully without any errors and sometimes it failed. I tried many workarounds but none of them helped me out. For instance, when I…
HOW TO AUTO-PURGE STATSPACK SNAPSHOTS
GOAL This note shows a way to purge statspack data automatically that is older than a specified number of days SOLUTION To purge unnecessary statspack data use the STATSPACK.PURGE procedure. The procedure has the parameter that accepts the number of days…
ORA-02049: TIMEOUT: DISTRIBUTED TRANSACTION WAITING FOR LOCK
SYMPTOMS An application reports about multiple errors ORA-02049: timeout: distributed transaction waiting for lock in the application’s log file. RELATED A BLOCKING SESSION ORA-00060: DEADLOCK DETECTED WHILE WAITING FOR RESOURCE DIAGNOSE The error occurs when a session is trying to…
THE FAILED LOGINS AND THE FAILED LOGINS (HISTORICAL) METRICS ARE EXTREMELY SLOW RESULTING IN HIGH IO AND CPU CONSUMPTION
SYMPTOMS The Oracle Enterprise Manager Cloud Control 13c Release 3 and The Oracle Management Agent 13c release 3 are used to monitor the Oracle database 12.1.0.1.0. Both The Failed Logins and Failed Logins (Historical) Metric are enabled and execute on a regular base. The…
HOW TO TURN OFF ORACLE 12C UNIFIED AUDITING AND CLEAN UP ALL UNIFIED AUDITING RECORDS
12c AUDITING Since the Oracle Database 12c Release 12.1.0.1.0 the Oracle invented a new approach of auditing – The Unified Auditing The Unified Auditing can operate in one of 2 available auditing modes – the Mixed Mode Auditing and the Pure Unified…
HOW TO FIND A QUERY THAT IS EXECUTED BY A DATABASE METRIC IN A TARGET DATABASE
PURPOSE This testcase is made up of number of steps helping out to find out the exact query that is executed by a database metric. The example is based on the Failed Logins (Historical) metric that is regulary executed by the Oracle Enterprise Manager…
THE FAILED LOGINS METRIC QUERY IS VERY SLOW BECAUSE OF AUD$ TABLE SIZE
SYMPTOMS The Oracle Enterprise Manage Cloud Control 13c is used to monitor the Oracle database. The Failed Logins Metric is enabled and by default executed every 30 minutes. The related metric queries with SQL_ID 83jcj6at6ugq3 (12c) and 1c74605ddbvjt (11gR2) are very slow and causes…
THE AUD$ TABLE IS VERY LARGE
SYMPTOMS You noticed that your SYSTEM tablespace is too big in size. By reviewing the DBA_SEGMENTS view you found out that the most part of the SYSTEM tablespace is occupied by the AUD$ segment. You are wondering now what is the segment for and…
ORA-06512, ORA-39127, ORA-01031, ORA-39126, ORA-06502 WHEN IMPORTING FROM A DATABASE WITH THE DATABASE VAULT ENABLED
SYMPTOMS A datapump import performing through a database link fails when the Database Vault is enabled on a source database. The datapump import fails with the following error stack impdp system/password schemas=XXCMD NETWORK_LINK=PROD_SYSTEM DIRECTORY=DROPZONE LOGFILE=XXCMD_refresh_07SEP2020.import.log EXCLUDE=statistics … Processing object type SCHEMA_EXPORT/VIEW/TRIGGER ORA-39127: unexpected error…
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