Showing posts with label Time. Show all posts
Showing posts with label Time. Show all posts

Thursday, September 26, 2013

How long did your Database Upgrade actually take?

This might be old news, but it became new news for me after I discovered it last week. As far as I know, there's no way to determine the length of a database upgrade. There are, however, ways to influence the length by gathering dictionary stats, truncate AUD$ and FGA_LOG$. At the end of the upgrade process, either by DBUA, or via Manually I'd want to know the actual time taken by the scripts.

With a recent upgrade from 11.1.0.7 t o 11.2.0.3 on Solaris, I ran into this issue that disrupted the upgrade process and my (inadequate mental) timer. After reviewing the scripts called internally by catupgd.sql, I found this one that I thought was quite helpful.

SQL> @?/rdbms/admin/utlu112s.sql
.
Oracle Database 11.2 Post-Upgrade Status Tool           09-20-2013 14:53:05
.
Component                               Current      Version     Elapsed Time
Name                                    Status       Number      HH:MM:SS
.
Oracle Server
.                                         VALID      11.2.0.3.0  00:15:13
JServer JAVA Virtual Machine
.                                         VALID      11.2.0.3.0  00:03:39
Oracle Real Application Clusters
.                                         VALID      11.2.0.3.0  00:00:00
Oracle Workspace Manager
.                                         VALID      11.2.0.3.0  00:00:50
OLAP Analytic Workspace
.                                         VALID      11.2.0.3.0  00:00:23
OLAP Catalog
.                                         VALID      11.2.0.3.0  00:00:59
Oracle OLAP API
.                                         VALID      11.2.0.3.0  00:00:25
Oracle Enterprise Manager
.                                         VALID      11.2.0.3.0  00:04:56
Oracle XDK
.                                         VALID      11.2.0.3.0  00:00:44
Oracle Text
.                                         VALID      11.2.0.3.0  00:00:46
Oracle XML Database
.                                         VALID      11.2.0.3.0  00:04:48
Oracle Database Java Packages
.                                         VALID      11.2.0.3.0  00:00:26
Oracle Multimedia
.                                         VALID      11.2.0.3.0  00:10:05
Spatial
.                                         VALID      11.2.0.3.0  00:05:34
Oracle Expression Filter
.                                         VALID      11.2.0.3.0  00:00:10
Oracle Rules Manager
.                                         VALID      11.2.0.3.0  00:00:09
Gathering Statistics
.                                                                00:05:56
Total Upgrade Time: 00:55:14 <--

PL/SQL procedure successfully completed.

As it turns out, Tim Hall has blogged about it within his DB12c upgrade steps. The script in 12c is simply called utlu121s.sql.


Cheers!
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