Last updated on MARCH 28, 2019
Applies to:Oracle Database - Enterprise Edition - Version 11.1.0.6 and later
Sep 03, 2015 Disable and Enable Auto task Job for 11g and 12c version in Oracle. Automated database maintenance tasks is used by oracle to auto tune the SQL Queries, stale stats gather and space advisory. Some time this jobs change the execution plan and caused performance issue. Following jobs is configured default by Oracle: Automatic Optimizer Statistics. May 10, 2013 Thanks, It looks like a bug there. I have another server with same database version(11.2.0.1.0) but there is no any such log entry.
Oracle Database - Standard Edition - Version 11.1.0.6 and later Oracle Database - Personal Edition - Version 11.1.0.6 and later Oracle Database Cloud Schema Service - Version N/A and later Oracle Database Exadata Cloud Machine - Version N/A and later Information in this document applies to any platform. Goal
Occasionally, when running the 'SYS_AUTO_SQL_TUNING_TASK' warning messages such as the following may appear in the alert log:
'Process 0x%p appears to be hung in Auto SQL Tuning task'
'Current time = %u, process death time = %u' 'Attempting to kill process 0x%p with OS pid = %s' 'OSD kill skipped for process %p' 'OSD kill succeeded for process %p' 'OSD kill failed for process %p' These messages indicate that an auto kill of a 'hung'/long running tuning task has taken place. This is a protective measure purely to avoid the task from over-running its time limit because of a single task and protects a the system from harm caused by such over-running. Solution
Auto Sql Tuning Task Oracle Download
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Last updated on FEBRUARY 14, 2019
Applies to:Enterprise Manager for Oracle Database - Version 10.2.0.1 to 11.2.0.3 [Release 10.2 to 11.2]Oracle Kill Sys_auto_sql_tuning_taskInformation in this document applies to any platform.SymptomsPerformance Tuning Oracle Sql
Process 0x0x3f6bccc18 appears to be hung in Auto SQL Tuning task
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When you try to use the OEM -> Advisor Central -> SQL Advisors -> Automatic SQL Tuning Results -> choose the last 7 days Then click on any of the links under Overal Task Statistics, ie., SQL Skipped Due to Errors, you get the following error:
java.sql.SQLException: ORA-13663: The task SYS_AUTO_SQL_TUNING_TASK contains no results for execution EXEC_3428.
ORA-06512: at 'SYS.WRI$_REPT_SQLT', line 420 ORA-06512: at 'SYS.DBMS_REPORT', line 706 ORA-06512: at 'SYS.DBMS_REPORT', line 729 ORA-06512: at line 6. ChangesCause
Sql Tuning Advisor In Oracle
Oracle Query Tuning
Automatic Sql Tuning Task Oracle
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