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标题: New 11g Default Jobs [ID 755838.1] [打印本页]

作者: 郑全 时间: 2012-6-29 17:25
标题: New 11g Default Jobs [ID 755838.1]

In this Document

This document is being delivered to you via Oracle Support's Rapid Visibility (RaV) process and therefore has not been subject to an independent technical review.

Applies to:

Oracle Server - Enterprise Edition - Version 11.1.0.6 and later
Information in this document applies to any platform.

Goal

***Checked for relevance on 12-Jun-2012***

As mentioned in
Note 402614.1 - Time Zone Data in the Data Dictionary (SYS) and the Effects of a Time Zone File Update
there are several new 11g default jobs, which are poorly documented at this moment:

Standard 11g jobs are:

the 10g jobs
ORA$AUTOTASK_CLEAN
HM_CREATE_OFFLINE_DICTIONARY
DRA_REEVALUATE_OPEN_FAILURES
MGMT_CONFIG_JOB
MGMT_STATS_CONFIG_JOB
BSLN_MAINTAIN_STATS_JOB
XMLDB_NFS_CLEANUP_JOB
RSE$CLEAN_RECOVERABLE_SCRIPT
SM$CLEAN_AUTO_SPLIT_MERGE

The purpose of this document is to provide more details on the new 11g default jobs listed above.

Fix

1. ORA$AUTOTASK_CLEAN
The job is created by the 11g script catmwin.sql - Catalog script for Maintenance WINdow
catmwin.sql defines maintenance window and stats collection job. This job is an autotask repository data ageing job and deletes obsolete AUTOTASK repository data. The delete of this old data will be performed by the procedure ora$age_autotask_data which will be executed by the job.

2. HM_CREATE_OFFLINE_DICTIONARY
The job is created by the 11g script catmwin.sql which mentions that this is a job for creation of offline dictionary for Database Repair Advisor.
From unpublished Note 602459.1 - 'What Is OFFLINE_DICTIONARY': 'The system job SYS.HM_CREATE_OFFLINE_DICTIONARY executes the dbms_hm.create_offline_dictionary package which creates a LogMiner offline dictionary in the ADR for DRA name translation service. The job for generating the logminer dictionary is scheduled during the maintenance window. This job can be disabled. '

3. DRA_REEVALUATE_OPEN_FAILURES
The job is created by the 11g script catmwin.sql which mentions that this is a job for reevaluate open failures for Database Recovery Advisor. In other words it is used to get assistance in case of loss or corruption of datafiles, redo log files or controlfiles.
The job executes the procedure dbms_ir.reevaluateopenfailures.
Note.466682.1 - 'Data Recovery Advisor -Reference Guide'.

4. MGMT_CONFIG_JOB - comes with the OCM(Oracle Configuration Manager) installation - This is a configuration collection job.
The job is created by the script ocmjb10.sql by running procedure 'ORACLE_OCM.MGMT_CONFIG.collect_config'.

5. MGMT_STATS_CONFIG_JOB
This is an OCM Statistics collection job created in ocmjb10.sql by running 'ORACLE_OCM.MGMT_CONFIG.collect_stats'.

6. BSLN_MAINTAIN_STATS_JOB
This job is a compute statistics job. This job runs the BSLN_MAINTAIN_STATS_PROG program on the BSLN_MAINTAIN_STATS_SCHED schedule. The program BSLN_MAINTAIN_STATS_PROG will keep the default baseline's statistics up-to-date.

7. XMLDB_NFS_CLEANUP_JOB
The job is created in xdbu102.sql and runs the procedure dbms_xdbutil_int.cleanup_expired_nfsclients.

8. RSE$CLEAN_RECOVERABLE_SCRIPT - this job is STREAMS related.
It is created in execstr.sql and is new in 11.2. The script execstr.sql executes anonymous blocks for STReam. The job is responsible with the cleaning of recoverable scripts and calls 'sys.dbms_streams_auto_int.clean_recoverable_script;'.

9. SM$CLEAN_AUTO_SPLIT_MERGE - this job is STREAMS related. It is created in file execstr.sql and is new in 11.2 too. The job is responsible with the cleaning of auto split merge views.

References

NOTE:369111.5 - Oracle Configuration Manager FAQ
NOTE:466682.1 - Data Recovery Advisor -Reference Guide.
NOTE:602459.1 - What Is OFFLINE_DICTIONARY.IR
NOTE:743507.1 - How to Benefit from Automatic Maintenance Tasks Following the Removal of the GATHER_STATS_JOB in 11g?

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