Workload capture on 10.2.0.4

Hi,
Oracle 10.2.0.4 on HPUX....
I played with DBMS_WORKLOAD_CAPTURE.START_CAPTURE and in one minute
captured
around 100MB worth of data. Then I created a filter using ADD_FILTER
and tried capturing workload
information for only one schema. That did not seem to work as only
50KB worth of data been
collected and the capture report confirms that only one SQL statement
been captured (AWR for same
period shows more than a million statements been executed).
So...I deleted the filter and all existing capture data and workload
capture still does not work, typically only
10KB - 50KB are being captured, still excluding the main DB schema
(which was once
included in the filter), even though no filter exists.
select * from dba_workload_filters returns no rows.
Any idea what is going on? This is production database so restarting
it is out of the question.
Thanks
Sandeep

So why are you 'playing' on a production database?
Why don't you include exact coimmands?
Why do you post RTFM questions every 5 minutes and abuse these forums as a chatroom?
Sybrand Bakker
Senior Oracle DBA

Similar Messages

Workload Capture

Hi,
i was trying to test workload capture on 11.2 database.
Directory was created.
No filter was made.
When i start:
BEGIN
DBMS_WORKLOAD_CAPTURE.START_CAPTURE(NAME => '1JAN_WORKLOAD',DIR => 'CAPTURE_DIR',DURATION => 60);
END;
/2 rows was generated:
        ID NAME                                     STATUS               START_TIME          END_TIME            DURATION_SECS
       118 1JAN_WORKLOAD                            IN PROGRESS          2011/01/24 15:25:23 2011/01/24 15:26:23            60
       119 1JAN_WORKLOAD                            INCOMPLETE           2011/01/24 15:25:23Why one is incomplete??
tnx

So why are you 'playing' on a production database?
Why don't you include exact coimmands?
Why do you post RTFM questions every 5 minutes and abuse these forums as a chatroom?
Sybrand Bakker
Senior Oracle DBA

RAT-Workload Capture

Hi,
The 11gR2 database is in Linux box
I am working with Database Replay-workload capture through Enterprise manager
The capture directory was created and the workload capture is in Progress state(Workload capture on)
I need to know when it will be succeeded?
Almost more the 2 days the workload capture is in progress state....only

Hi,
The workload capture and workload preprocess stage has been completed successfully
The source database is acldb and the destination database is aclrat both the database are in the same host version 11gr2
now the workload replay has to be replayed in aclrat
So through OEM when we try to replay we noticed the following
"The database is waiting for connections from the Replay Clients. Start the Replay Clients now."
How to start the replay clients

Capturing a workload in 10gR2

Hi,
Version 10204
From Metalink note : Using the workload capture and replay in 11G [ID 445116.1]
o It is possible to start the capture without restrictred mode using the argument no_restart_mode=TRUE but this is not advisable as it relies on transactional integrityI followed 10gr2 online documention but could not find this option in the procedure : dbms_workload_capture.start_capture
http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14258/d_workload_capture.htm#CHDJIJIE
Please advice
Thanks

This is likely a 10gR2 limitation as Real Application Testing has been first introduced in 11GR1 before being backported to 10gR2.

Database capture on 10.2.0.4 to be replayed on 11g

Hi!
I have browsed the net for a while now and I was wondering how you folks replay a workload captured on 10.2.0.4 on 11g. The capturing part is rather simple :)
When it comes to replaying, do you data pump your schema from 10.2.0.4 to 11g and replay the workload there? I somehow can't see a different way - a complete database migration of the 10.2.0.4 db in the 11g home seems a bit off the mark. But then, that would be a more realistic scenario. IMO database replay really shines when it comes to large applications (not peoplesoft, a tad smaller) consisting of many schemas and that'll be some kind of effort to data pump....
Any thoughts?
Cheers,
Martin

user12009184 wrote:
Hi,
My current database version is 10.2.0.4
OS platform AIX 5.3
I want to upgrade my 10g database to latest version of 11g on AIX 5.3 platform.
Kindly help me from where i can download 11g base dump & latest 11g version patch to upgrade the database.
What is the latest version of 11g ?
What steps i need to follow ..?
Regards,
Pravin
The latest version of 11g is 11.2.0.2.3
go to metalink and search patch 10098816 for 11.2.0.2.0 and patch 12419331 to patched it to 11.2.0.2.3
Hope this helps
Cheers

To check weather JAVAVM being used or not?

Hi,
We are in the process of cleaning up unnecessary components. As a part of this, first of all we are checking weather JAVAVM is being used or not? How to confirm weather JAVAVM is being used or not?
I gone through Database Feature Usage but could not find any entry related to JAVAVM, for rest of the components i was able to. Any hints on this.
DBA_REGISTRY
COMP_ID
COMP_NAME
VERSION
STATUS
MODIFIED
CATALOG
Oracle Database Catalog Views
10.2.0.5.0
VALID
23-JUN-2013 06:16:06
CATPROC
Oracle Database Packages and Types
10.2.0.5.0
VALID
23-JUN-2013 06:16:06
JAVAVM
JServer JAVA Virtual Machine
10.2.0.5.0
VALID
23-JUN-2013 06:16:07
CATJAVA
Oracle Database Java Packages
10.2.0.5.0
VALID
23-JUN-2013 06:16:07
And features usage is as follows.
Database Feature Usage
NAME
DETECTED_USAGES
ASO native encryption and checksumming
0
AWR Report
17
Advanced Replication
0
Advanced Security
0
Audit Options
41
Automatic Database Diagnostic Monitor
6
Automatic SQL Execution Memory
41
Automatic Segment Space Management (system)
41
Automatic Segment Space Management (user)
41
Automatic Storage Manager
0
Automatic Undo Management
41
Automatic Workload Repository
1
CSSCAN
0
Change Data Capture
0
Change-Aware Incremental Backup
0
Character Semantics
0
Character Set
41
Client Identifier
0
Data Guard
0
Data Guard Broker
0
Data Mining
0
Database Replay: Workload Capture
0
Diagnostic Pack
0
Dynamic SGA
0
EM Database Control
0
EM Grid Control
0
Extensibility
41
File Mapping
0
Flashback Database
0
Internode Parallel Execution
0
LOB
41
Label Security
0
Locally Managed Tablespaces (system)
41
Locally Managed Tablespaces (user)
41
Locator
0
MTTR Advisor
0
Materialized Views (User)
41
Messaging Gateway
0
Multiple Block Sizes
0
OLAP - Analytic Workspaces
0
OLAP - Cubes
0
Object
41
Oracle Database Vault
0
Oracle Managed Files
0
PL/SQL Native Compilation
0
Parallel SQL DDL Execution
24
Parallel SQL DML Execution
0
Parallel SQL Query Execution
35
Partitioning (system)
41
Partitioning (user)
0
Protection Mode - Maximum Availability
0
Protection Mode - Maximum Performance
41
Protection Mode - Maximum Protection
0
Protection Mode - Unprotected
0
RMAN - Disk Backup
0
RMAN - Tape Backup
0
Real Application Clusters (RAC)
0
Recovery Area
0
Recovery Manager (RMAN)
0
Resource Manager
0
SQL Access Advisor
0
SQL Tuning Advisor
7
SQL Tuning Set
41
Segment Advisor
40
Server Parameter File
5
Shared Server
37
Spatial
0
Standby Archival - ARCH
0
Standby Archival - LGWR
0
Standby Transmission
0
Streams (system)
0
Streams (user)
0
Transparent Gateway
0
Tuning Pack
0
Undo Advisor
0
Virtual Private Database (VPD)
0
XDB
0
D
Regards
DBA.

We are in the process of cleaning up unnecessary components. As a part of this, first of all we are checking weather JAVAVM is being used or not? How to confirm weather JAVAVM is being used or not?
Yes - if you have an Oracle database the JVM is being used.
There is NOTHING to 'clean up' as far as the internal JVM that is part of Oracle.
You can NOT modify it or upgrade it. And if you remove it Oracle will also remove your database.
See the Database Installation Guide
http://docs.oracle.com/cd/B28359_01/install.111/b32002/remove_oracle_sw.htm#CCHBABDE
In the Inventory screen, select the Oracle home and the products that you want to remove, then click Remove.
Note:
If you choose to remove Oracle JVM, Oracle Universal Installer removes all installed products that depend on Oracle JVM, including Oracle Database 11g.

How to uninstall Oracle 11g Database Options?

I've come across a problem. A company that developed an application, installed Oracle 11g EE.
I guess they would use all default options. Some of them are licensed separately, and are not used. So I need to uninstall them.
For example, I see that it is installed "Advanced Compression". I tried to uninstall it from the Universal Installer, but there isn't an option.

Good news for my company.
There has never been used "Advanced Compression" and for everything else we are licensed.
NAME                                                     VERSION     DETECTED_USAGES CURRENTLY_USED LAST_USAGE_DATE
Active Data Guard - Real-Time Query on Physical Standby 11.2.0.2.0                0 FALSE
ADDM                                                     11.2.0.2.0                0 FALSE
Advanced Replication                                     11.2.0.2.0                0 FALSE
Application Express                                      11.2.0.2.0                0 FALSE
Automatic SGA Tuning                                     11.2.0.2.0                0 FALSE
Automatic Storage Management                             11.2.0.2.0                0 FALSE
Automatic Workload Repository                            11.2.0.2.0                0 FALSE
AWR Baseline                                             11.2.0.2.0                0 FALSE
AWR Baseline Template                                    11.2.0.2.0                0 FALSE
Backup BASIC Compression                                 11.2.0.2.0                0 FALSE
Backup BZIP2 Compression                                 11.2.0.2.0                0 FALSE
Backup Encryption                                        11.2.0.2.0                0 FALSE
Backup HIGH Compression                                  11.2.0.2.0                0 FALSE
Backup LOW Compression                                   11.2.0.2.0                0 FALSE
Backup MEDIUM Compression                                11.2.0.2.0                0 FALSE
Backup Rollforward                                       11.2.0.2.0                0 FALSE
Backup ZLIB Compression                                  11.2.0.2.0                0 FALSE
Baseline Adaptive Thresholds                             11.2.0.2.0                0 FALSE
Baseline Static Computations                             11.2.0.2.0                0 FALSE
Bigfile Tablespace                                       11.2.0.2.0                0 FALSE
Block Media Recovery                                     11.2.0.2.0                0 FALSE
Change Data Capture                                      11.2.0.2.0                0 FALSE
Change-Aware Incremental Backup                          11.2.0.2.0                0 FALSE
Character Semantics                                      11.2.0.2.0                0 FALSE
Client Identifier                                        11.2.0.2.0                0 FALSE
Clusterwide Global Transactions                          11.2.0.2.0                0 FALSE
Compression Advisor                                      11.2.0.2.0                0 FALSE
Crossedition Triggers                                    11.2.0.2.0                0 FALSE
CSSCAN                                                   11.2.0.2.0                0 FALSE
Data Guard                                               11.2.0.2.0                0 FALSE
Data Mining                                              11.2.0.2.0                0 FALSE
Data Recovery Advisor                                    11.2.0.2.0                0 FALSE
Database Replay: Workload Capture                        11.2.0.2.0                0 FALSE
Database Replay: Workload Replay                         11.2.0.2.0                0 FALSE
Deferred Open Read Only                                  11.2.0.2.0                0 FALSE
Direct NFS                                               11.2.0.2.0                0 FALSE
Dynamic SGA                                              11.2.0.2.0                0 FALSE
Editioning Views                                         11.2.0.2.0                0 FALSE
Editions                                                 11.2.0.2.0                0 FALSE
EM Database Control                                      11.2.0.2.0                0 FALSE
Encrypted Tablespaces                                    11.2.0.2.0                0 FALSE
Exadata                                                  11.2.0.2.0                0 FALSE
Extensibility                                            11.2.0.2.0                0 FALSE
File Mapping                                             11.2.0.2.0                0 FALSE
Flashback Data Archive                                   11.2.0.2.0                0 FALSE
Flashback Database                                       11.2.0.2.0                0 FALSE
GoldenGate                                               11.2.0.2.0                0 FALSE
HeapCompression                                          11.2.0.2.0                0 FALSE
Hybrid Columnar Compression                              11.2.0.2.0                0 FALSE
Instance Caging                                          11.2.0.2.0                0 FALSE
Internode Parallel Execution                             11.2.0.2.0                0 FALSE
Label Security                                           11.2.0.2.0                0 FALSE
Locator                                                  11.2.0.2.0                0 FALSE
Long-term Archival Backup                                11.2.0.2.0                0 FALSE
Materialized Views (User)                                11.2.0.2.0                0 FALSE
Messaging Gateway                                        11.2.0.2.0                0 FALSE
Multi Section Backup                                     11.2.0.2.0                0 FALSE
Multiple Block Sizes                                     11.2.0.2.0                0 FALSE
Object                                                   11.2.0.2.0                0 FALSE
OLAP - Analytic Workspaces                               11.2.0.2.0                0 FALSE
OLAP - Cubes                                             11.2.0.2.0                0 FALSE
Oracle Database Vault                                    11.2.0.2.0                0 FALSE
Oracle Java Virtual Machine (user)                       11.2.0.2.0                0 FALSE
Oracle Managed Files                                     11.2.0.2.0                0 FALSE
Oracle Multimedia                                        11.2.0.2.0                0 FALSE
Oracle Multimedia DICOM                                  11.2.0.2.0                0 FALSE
Oracle Secure Backup                                     11.2.0.2.0                0 FALSE
Oracle Text                                              11.2.0.2.0                0 FALSE
Oracle Utility External Table                            11.2.0.2.0                0 FALSE
Oracle Utility SQL Loader (Direct Path Load)             11.2.0.2.0                0 FALSE
PL/SQL Native Compilation                                11.2.0.2.0                0 FALSE
Read Only Tablespace                                     11.2.0.2.0                0 FALSE
Real Application Clusters (RAC)                          11.2.0.2.0                0 FALSE
Real-Time SQL Monitoring                                 11.2.0.2.0                0 FALSE
Recovery Area                                            11.2.0.2.0                0 FALSE
Recovery Manager (RMAN)                                  11.2.0.2.0                0 FALSE
Resource Manager                                         11.2.0.2.0                0 FALSE
Restore Point                                            11.2.0.2.0                0 FALSE
Result Cache                                             11.2.0.2.0                0 FALSE
RMAN - Disk Backup                                       11.2.0.2.0                0 FALSE
RMAN - Tape Backup                                       11.2.0.2.0                0 FALSE
Rules Manager                                            11.2.0.2.0                0 FALSE
SecureFile Compression (system)                          11.2.0.2.0                0 FALSE
SecureFile Compression (user)                            11.2.0.2.0                0 FALSE
SecureFile Deduplication (system)                        11.2.0.2.0                0 FALSE
SecureFile Deduplication (user)                          11.2.0.2.0                0 FALSE
SecureFile Encryption (system)                           11.2.0.2.0                0 FALSE
SecureFile Encryption (user)                             11.2.0.2.0                0 FALSE
Semantics/RDF                                            11.2.0.2.0                0 FALSE
Server Flash Cache                                       11.2.0.2.0                0 FALSE
Services                                                 11.2.0.2.0                0 FALSE
Shared Server                                            11.2.0.2.0                0 FALSE
Spatial                                                  11.2.0.2.0                0 FALSE
SQL Access Advisor                                       11.2.0.2.0                0 FALSE
SQL Performance Analyzer                                 11.2.0.2.0                0 FALSE
SQL Plan Management                                      11.2.0.2.0                0 FALSE
SQL Profile                                              11.2.0.2.0                0 FALSE
SQL Repair Advisor                                       11.2.0.2.0                0 FALSE
SQL Tuning Set (system)                                  11.2.0.2.0                0 FALSE
SQL Tuning Set (user)                                    11.2.0.2.0                0 FALSE
SQL Workload Manager                                     11.2.0.2.0                0 FALSE
Streams (system)                                         11.2.0.2.0                0 FALSE
Streams (user)                                           11.2.0.2.0                0 FALSE
Transparent Data Encryption                              11.2.0.2.0                0 FALSE
Transparent Gateway                                      11.2.0.2.0                0 FALSE
Transportable Tablespace                                 11.2.0.2.0                0 FALSE
Tune MView                                               11.2.0.2.0                0 FALSE
Undo Advisor                                             11.2.0.2.0                0 FALSE
Very Large Memory                                        11.2.0.2.0                0 FALSE
Workspace Manager                                        11.2.0.2.0                0 FALSE
XDB                                                      11.2.0.2.0                0 FALSE
XStream In                                               11.2.0.2.0                0 FALSE
XStream Out                                              11.2.0.2.0                0 FALSE
XStream Streams                                          11.2.0.2.0                0 FALSE
ASO native encryption and checksumming                   11.2.0.2.0                1 FALSE          20/10/12
Segment Advisor (user)                                   11.2.0.2.0                1 FALSE          08/03/13
SQL Tuning Advisor                                       11.2.0.2.0                2 FALSE          09/02/13
AWR Report                                               11.2.0.2.0                3 FALSE          09/02/13
Oracle Utility Datapump (Import)                         11.2.0.2.0                3 FALSE          26/05/12
EM Performance Page                                      11.2.0.2.0                5 FALSE          20/10/12
SQL Monitoring and Tuning pages                          11.2.0.2.0                5 FALSE          20/10/12
Job Scheduler                                            11.2.0.2.0                6 TRUE           13/04/13
Segment Shrink                                           11.2.0.2.0                6 TRUE           13/04/13
EM Grid Control                                          11.2.0.2.0               27 FALSE          15/03/13
Automatic SQL Execution Memory                           11.2.0.2.0               35 TRUE           13/04/13
MTTR Advisor                                             11.2.0.2.0               41 TRUE           13/04/13
Parallel SQL DDL Execution                               11.2.0.2.0               56 TRUE           13/04/13
Parallel SQL DML Execution                               11.2.0.2.0               56 TRUE           13/04/13
Parallel SQL Query Execution                             11.2.0.2.0               61 TRUE           13/04/13
Oracle Utility Datapump (Export)                         11.2.0.2.0               93 TRUE           13/04/13
Oracle Utility Metadata API                              11.2.0.2.0               93 TRUE           13/04/13
Automatic Segment Space Management (user)                11.2.0.2.0               95 TRUE           13/04/13
Automatic SQL Tuning Advisor                             11.2.0.2.0               95 TRUE           13/04/13
LOB                                                      11.2.0.2.0               95 TRUE           13/04/13
Partitioning (user)                                      11.2.0.2.0               95 TRUE           13/04/13
Audit Options                                            11.2.0.2.0               96 TRUE           13/04/13
Automatic Maintenance - Optimizer Statistics Gathering   11.2.0.2.0               96 TRUE           13/04/13
Automatic Maintenance - Space Advisor                    11.2.0.2.0               96 TRUE           13/04/13
Automatic Maintenance - SQL Tuning Advisor               11.2.0.2.0               96 TRUE           13/04/13
Automatic Memory Tuning                                  11.2.0.2.0               96 TRUE           13/04/13
Automatic Segment Space Management (system)              11.2.0.2.0               96 TRUE           13/04/13
Automatic Undo Management                                11.2.0.2.0               96 TRUE           13/04/13
Character Set                                            11.2.0.2.0               96 TRUE           13/04/13
Deferred Segment Creation                                11.2.0.2.0               96 TRUE           13/04/13
Locally Managed Tablespaces (system)                     11.2.0.2.0               96 TRUE           13/04/13
Locally Managed Tablespaces (user)                       11.2.0.2.0               96 TRUE           13/04/13
Logfile Multiplexing                                     11.2.0.2.0               96 TRUE           13/04/13
Oracle Java Virtual Machine (system)                     11.2.0.2.0               96 TRUE           13/04/13
Partitioning (system)                                    11.2.0.2.0               96 TRUE           13/04/13
SecureFiles (system)                                     11.2.0.2.0               96 TRUE           13/04/13
SecureFiles (user)                                       11.2.0.2.0               96 TRUE           13/04/13
Server Parameter File                                    11.2.0.2.0               96 TRUE           13/04/13
Virtual Private Database (VPD)                           11.2.0.2.0               96 TRUE           13/04/13 thanks again

Oracle Performance tunning genral question

Hi,
Below is the list of Areas of Oracle db for which tunning activities are done. You are invited to comment to it weather this is complete list or need some addition or deletion. As I'm learning PT for Oracle now a days, therefore I want to expand my knowledge by sharing what I'm learning and what I need to learn.
So comment with Open hearts on it. Espically from experts and Gurus.
Here is the List
1-Planning for Performance, include Storage consideration( Weather it is SAN, NAS, DAS), Network planning and host OS planning with proper configuration for running Oracle.
2-Database desining (Not under-Normalized and not Over-Normalized with proper usage of Indexes, views and Stored Procedures)
3- Instance tunning (Memory structure + B.g Processes)
4- Session tunning.
5- Segment Space tunning.
6- SQL tunning.
This is what uptill what I've learned. If it needs addition kindly tell me what are these. Please also provide me links(good and precise one) for PT tutorials on web.Also note that I'm discussing this w.r.t Single instance non-rac db.
Looking for Good sugessions
Regards,
Abbasi

Hello,
This is the oracle course contents:
Contents
Preface
1 Introduction
Course Objectives 1-2
Organization 1-3
Agenda 1-4
What Is Not Included 1-6
Who Tunes? 1-7
What Does the DBA Tune? 1-8
How to Tune 1-10
Tuning Methodology 1-11
Effective Tuning Goals 1-13
General Tuning Session 1-15
Summary 1-17
2 Basic Tuning Tools
Objectives 2-2
Performance Tuning Diagnostics 2-3
Performance Tuning Tools 2-4
Tuning Objectives 2-5
Top Wait Events 2-6
DB Time 2-7
CPU and Wait Time Tuning Dimensions 2-8
Time Model: Overview 2-9
Time Model Statistics Hierarchy 2-10
Time Model Example 2-12
Dynamic Performance Views 2-13
Dynamic Performance Views: Usage Examples 2-14
Dynamic Performance Views: Considerations 2-15
Statistic Levels 2-16
Statistics and Wait Events 2-18
System Statistic Classes 2-19
Displaying Statistics 2-20
Displaying SGA Statistics 2-22
Wait Events 2-23
Using the V$EVENT_NAME View 2-24
Wait Classes 2-25
Displaying Wait Event Statistics 2-26
Oracle Internal & Oracle Academy Use Only
iv
Commonly Observed Wait Events 2-28
Using the V$SESSION_WAIT View 2-29
Precision of System Statistics 2-31
Using Features of the Packs 2-32
Accessing the Database Home Page 2-34
Enterprise Manager Performance Pages 2-35
Viewing the Alert Log 2-37
Using Alert Log Information as an Aid in Tuning 2-38
User Trace Files 2-40
Background Processes Trace Files 2-41
Summary 2-42
Practice 2 Overview: Using Basic Tools 2-43
3 Using Automatic Workload Repository
Objectives 3-2
Automatic Workload Repository: Overview 3-3
Automatic Workload Repository Data 3-4
Workload Repository 3-5
Database Control and AWR 3-6
AWR Snapshot Purging Policy 3-7
AWR Snapshot Settings 3-8
Manual AWR Snapshots 3-9
Managing Snapshots with PL/SQL 3-10
Generating AWR Reports in EM 3-11
Generating AWR Reports in SQL*Plus 3-12
Reading the AWR Report 3-13
Snapshots and Periods Comparisons 3-14
Compare Periods: Benefits 3-15
Compare Periods: Results 3-16
Compare Periods: Report 3-17
Compare Periods: Load Profile 3-18
Compare Periods: Top Events 3-19
Summary 3-20
Practice 3 Overview: Using AWR-Based Tools 3-21
4 Defining Problems
Objectives 4-2
Defining the Problem 4-3
Limit the Scope 4-4
Setting the Priority 4-5
Top Wait Events 4-6
Oracle Internal & Oracle Academy Use Only
v
Setting the Priority: Example 4-7
Top SQL Reports 4-8
Common Tuning Problems 4-9
Tuning Life Cycle Phases 4-11
Tuning During the Life Cycle 4-12
Application Design and Development 4-13
Testing: Database Configuration 4-14
Deployment 4-15
Production 4-16
Migration, Upgrade, and Environment Changes 4-17
ADDM Tuning Session 4-18
Performance Versus Business Requirements 4-19
Performance Tuning Resources 4-20
Filing a Performance Service Request 4-21
RDA Report 4-22
Monitoring and Tuning Tool: Overview 4-23
Summary 4-25
Practice 4 Overview: Identifying the Problem 4-26
5 Using Metrics and Alerts
Objectives 5-2
Metrics, Alerts, and Baselines 5-3
Limitation of Base Statistics 5-4
Typical Delta Tools 5-5
Oracle Database 11g Solution: Metrics 5-6
Benefits of Metrics 5-7
Viewing Metric History Information 5-8
Using EM to View Metric Details 5-9
Statistic Histograms 5-10
Histogram Views 5-11
Server-Generated Alerts 5-12
Database Control Usage Model 5-13
Setting Thresholds 5-14
Creating and Testing an Alert 5-15
Metric and Alert Views 5-16
View User-Defined SQL Metrics 5-17
Create User-Defined SQL Metrics 5-18
View User-Defined Host Metrics 5-19
Create User-Defined Host Metrics 5-20
Summary 5-21
Practice Overview 5: Working with Metrics 5-22
Oracle Internal & Oracle Academy Use Only
vi
6 Baselines
Objectives 6-2
Comparative Performance Analysis with AWR Baselines 6-3
Automatic Workload Repository Baselines 6-4
Moving Window Baseline 6-5
Baselines in Performance Page Settings 6-6
Baseline Templates 6-7
AWR Baselines 6-8
Creating AWR Baselines 6-9
Single AWR Baseline 6-10
Creating a Repeating Baseline Template 6-11
Managing Baselines with PL/SQL 6-12
Generating a Baseline Template for a Single Time Period 6-13
Creating a Repeating Baseline Template 6-14
Baseline Views 6-15
Performance Monitoring and Baselines 6-17
Defining Alert Thresholds Using a Static Baseline 6-19
Using EM to Quickly Configure Adaptive Thresholds 6-20
Changing Adaptive Threshold Settings 6-22
Summary 6-23
Practice 6: Overview Using AWR Baselines 6-24
7 Using AWR-Based Tools
Objectives 7-2
Automatic Maintenance Tasks 7-3
Maintenance Windows 7-4
Default Maintenance Plan 7-5
Automated Maintenance Task Priorities 7-6
Tuning Automatic Maintenance Tasks 7-7
ADDM Performance Monitoring 7-8
ADDM and Database Time 7-9
DBTime-Graph and ADDM Methodology 7-10
Top Performance Issues Detected 7-12
Database Control and ADDM Findings 7-13
ADDM Analysis Results 7-14
ADDM Recommendations 7-15
Database Control and ADDM Task 7-16
Changing ADDM Attributes 7-17
Retrieving ADDM Reports by Using SQL 7-18
Active Session History: Overview 7-19
Active Session History: Mechanics 7-20
Oracle Internal & Oracle Academy Use Only
vii
ASH Sampling: Example 7-21
Accessing ASH Data 7-22
Dump ASH to File 7-23
Analyzing the ASH Data 7-24
Generating ASH Reports 7-25
ASH Report Script 7-26
ASH Report: General Section 7-27
ASH Report Structure 7-28
ASH Report: Activity Over Time 7-29
Summary 7-30
Practice 7 Overview: Using AWR-Based Tools 7-31
8 Monitoring an Application
Objectives 8-2
What Is a Service? 8-3
Service Attributes 8-4
Service Types 8-5
Creating Services 8-6
Managing Services in a Single-Instance Environment 8-7
Everything Switches to Services 8-8
Using Services with Client Applications 8-9
Using Services with the Resource Manager 8-10
Services and Resource Manager with EM 8-11
Services and the Resource Manager: Example 8-12
Using Services with the Scheduler 8-13
Services and the Scheduler with EM 8-14
Services and the Scheduler: Example 8-16
Using Services with Parallel Operations 8-17
Using Services with Metric Thresholds 8-18
Changing Service Thresholds by Using EM 8-19
Services and Metric Thresholds: Example 8-20
Service Aggregation and Tracing 8-21
Top Services Performance Page 8-22
Service Aggregation Configuration 8-23
Service Aggregation: Example 8-24
Client Identifier Aggregation and Tracing 8-25
trcsess Utility 8-26
Service Performance Views 8-27
Summary 8-29
Practice 8 Overview: Using Services 8-30
Oracle Internal & Oracle Academy Use Only
viii
9 Identifying Problem SQL Statements
Objectives 9-2
SQL Statement Processing Phases 9-3
Parse Phase 9-4
SQL Storage 9-5
Cursor Usage and Parsing 9-6
SQL Statement Processing Phases: Bind 9-8
SQL Statement Processing Phases: Execute and Fetch 9-9
Processing a DML Statement 9-10
COMMIT Processing 9-12
Role of the Oracle Optimizer 9-13
Identifying Bad SQL 9-15
TOP SQL Reports 9-16
What Is an Execution Plan? 9-17
Methods for Viewing Execution Plans 9-18
Uses of Execution Plans 9-19
DBMS_XPLAN Package: Overview 9-20
EXPLAIN PLAN Command 9-22
EXPLAIN PLAN Command: Example 9-23
EXPLAIN PLAN Command: Output 9-24
Reading an Execution Plan 9-25
Using the V$SQL_PLAN View 9-26
V$SQL_PLAN Columns 9-27
Querying V$SQL_PLAN 9-28
V$SQL_PLAN_STATISTICS View 9-29
Querying the AWR 9-30
SQL*Plus AUTOTRACE 9-32
Using SQL*Plus AUTOTRACE 9-33
SQL*Plus AUTOTRACE: Statistics 9-34
SQL Trace Facility 9-35
How to Use the SQL Trace Facility 9-37
Initialization Parameters 9-38
Enabling SQL Trace 9-40
Disabling SQL Trace 9-41
Formatting Your Trace Files 9-42
TKPROF Command Options 9-43
Output of the TKPROF Command 9-45
TKPROF Output with No Index: Example 9-50
TKPROF Output with Index: Example 9-51
Generate an Optimizer Trace 9-52
Oracle Internal & Oracle Academy Use Only
ix
Summary 9-53
Practice Overview 9: Using Execution Plan Utilities 9-54
10 Influencing the Optimizer
Objectives 10-2
Functions of the Query Optimizer 10-3
Selectivity 10-5
Cardinality and Cost 10-6
Changing Optimizer Behavior 10-7
Using Hints 10-8
Optimizer Statistics 10-9
Extended Statistics 10-10
Controlling the Behavior of the Optimizer with Parameters 10-11
Enabling Query Optimizer Features 10-13
Influencing the Optimizer Approach 10-14
Optimizing SQL Statements 10-15
Access Paths 10-16
Choosing an Access Path 10-17
Full Table Scans 10-18
Row ID Scans 10-20
Index Operations 10-21
B*Tree Index Operations 10-22
Bitmap Indexes 10-23
Bitmap Index Access 10-24
Combining Bitmaps 10-25
Bitmap Operations 10-26
Join Operations 10-27
Join Methods 10-28
Nested Loop Joins 10-29
Hash Joins 10-31
Sort-Merge Joins 10-32
Join Performance 10-34
How the Query Optimizer Chooses Execution Plans for Joins 10-35
Sort Operations 10-37
Tuning Sort Performance 10-38
Reducing the Cost 10-39
Index Maintenance 10-40
Dropping Indexes 10-42
Creating Indexes 10-43
SQL Access Advisor 10-44
Table Maintenance for Performance 10-45
Oracle Internal & Oracle Academy Use Only
x
Table Reorganization Methods 10-46
Summary 10-47
Practice 10 Overview: Influencing the Optimizer 10-48
11 Using SQL Performance Analyzer
Objectives 11-2
Real Application Testing: Overview 11-3
Real Application Testing: Use Cases 11-4
SQL Performance Analyzer: Process 11-5
Capturing the SQL Workload 11-7
Creating a SQL Performance Analyzer Task 11-8
SQL Performance Analyzer: Tasks 11-9
Optimizer Upgrade Simulation 11-10
SQL Performance Analyzer Task Page 11-11
Comparison Report 11-12
Comparison Report SQL Detail 11-13
Tuning Regressing Statements 11-14
Preventing Regressions 11-16
Parameter Change Analysis 11-17
Guided Workflow Analysis 11-18
SQL Performance Analyzer: PL/SQL Example 11-19
SQL Performance Analyzer: Data Dictionary Views 11-21
Summary 11-22
Practice 11: Overview 11-23
12 SQL Performance Management
Objectives 12-2
Maintaining SQL Performance 12-3
Maintaining Optimizer Statistics 12-4
Automated Maintenance Tasks 12-5
Statistic Gathering Options 12-6
Setting Statistic Preferences 12-7
Restore Statistics 12-9
Deferred Statistics Publishing: Overview 12-10
Deferred Statistics Publishing: Example 12-12
Automatic SQL Tuning: Overview 12-13
SQL Statement Profiling 12-14
Plan Tuning Flow and SQL Profile Creation 12-15
SQL Tuning Loop 12-16
Using SQL Profiles 12-17
SQL Tuning Advisor: Overview 12-18
Oracle Internal & Oracle Academy Use Only
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Using the SQL Tuning Advisor 12-19
SQL Tuning Advisor Options 12-20
SQL Tuning Advisor Recommendations 12-21
Using the SQL Tuning Advisor: Example 12-22
Using the SQL Access Advisor 12-23
View Recommendations 12-25
View Recommendation Details 12-26
SQL Plan Management: Overview 12-27
SQL Plan Baseline: Architecture 12-28
Loading SQL Plan Baselines 12-30
Evolving SQL Plan Baselines 12-31
Important Baseline SQL Plan Attributes 12-32
SQL Plan Selection 12-34
Possible SQL Plan Manageability Scenarios 12-36
SQL Performance Analyzer and SQL Plan Baseline Scenario 12-37
Loading a SQL Plan Baseline Automatically 12-38
Purging SQL Management Base Policy 12-39
Enterprise Manager and SQL Plan Baselines 12-40
Summary 12-41
Practice 12: Overview Using SQL Plan Management 12-42
13 Using Database Replay
Objectives 13-2
Using Database Replay 13-3
The Big Picture 13-4
System Architecture: Capture 13-5
System Architecture: Processing the Workload 13-7
System Architecture: Replay 13-8
Capture Considerations 13-9
Replay Considerations: Preparation 13-10
Replay Considerations 13-11
Replay Options 13-12
Replay Analysis 13-13
Database Replay Workflow in Enterprise Manager 13-15
Capturing Workload with Enterprise Manager 13-16
Capture Wizard: Plan Environment 13-17
Capture Wizard: Options 13-18
Capture Wizard: Parameters 13-19
Viewing Capture Progress 13-20
Viewing Capture Report 13-21
Export Capture AWR Data 13-22
Oracle Internal & Oracle Academy Use Only
xii
Viewing Workload Capture History 13-23
Processing Captured Workload 13-24
Using the Preprocess Captured Workload Wizard 13-25
Using the Replay Workload Wizard 13-26
Replay Workload: Prerequisites 13-27
Replay Workload: Choose Initial Options 13-28
Replay Workload: Customize Options 13-29
Replay Workload: Prepare Replay Clients 13-30
Replay Workload: Client Connections 13-31
Replay Workload: Replay Started 13-32
Viewing Workload Replay Progress 13-33
Viewing Workload Replay Statistics 13-34
Packages and Procedures 13-36
Data Dictionary Views: Database Replay 13-37
Database Replay: PL/SQL Example 13-38
Calibrating Replay Clients 13-40
Summary 13-41
Practice 13: Overview 13-42
14 Tuning the Shared Pool
Objectives 14-2
Shared Pool Architecture 14-3
Shared Pool Operation 14-4
The Library Cache 14-5
Latch and Mutex 14-7
Latch and Mutex: Views and Statistics 14-9
Diagnostic Tools for Tuning the Shared Pool 14-11
AWR/Statspack Indicators 14-13
Load Profile 14-14
Instance Efficiencies 14-15
Top Waits 14-16
Time Model 14-17
Library Cache Activity 14-19
Avoid Hard Parses 14-20
Are Cursors Being Shared? 14-21
Sharing Cursors 14-23
Adaptive Cursor Sharing: Example 14-25
Adaptive Cursor Sharing Views 14-27
Interacting with Adaptive Cursor Sharing 14-28
Avoiding Soft Parses 14-29
Sizing the Shared Pool 14-30
Oracle Internal & Oracle Academy Use Only
xiii
Shared Pool Advisory 14-31
Shared Pool Advisor 14-33
Avoiding Fragmentation 14-34
Large Memory Requirements 14-35
Tuning the Shared Pool Reserved Space 14-37
Keeping Large Objects 14-39
Data Dictionary Cache 14-41
Dictionary Cache Misses 14-42
SQL Query Result Cache: Overview 14-43
Managing the SQL Query Result Cache 14-44
Using the RESULT_CACHE Hint 14-46
Using the DBMS_RESULT_CACHE Package 14-47
Viewing SQL Result Cache Dictionary Information 14-48
SQL Query Result Cache: Considerations 14-49
UGA and Oracle Shared Server 14-50
Large Pool 14-51
Tuning the Large Pool 14-52
Summary 14-53
Practice Overview 14: Tuning the Shared Pool 14-54
15 Tuning the Buffer Cache
Objectives 15-2
Oracle Database Architecture 15-3
Buffer Cache: Highlights 15-4
Database Buffers 15-5
Buffer Hash Table for Lookups 15-6
Working Sets 15-7
Tuning Goals and Techniques 15-9
Symptoms 15-11
Cache Buffer Chains Latch Contention 15-12
Finding Hot Segments 15-13
Buffer Busy Waits 15-14
Calculating the Buffer Cache Hit Ratio 15-15
Buffer Cache Hit Ratio Is Not Everything 15-16
Interpreting Buffer Cache Hit Ratio 15-17
Read Waits 15-19
Free Buffer Waits 15-21
Solutions 15-22
Sizing the Buffer Cache 15-23
Buffer Cache Size Parameters 15-24
Dynamic Buffer Cache Advisory Parameter 15-25
Oracle Internal & Oracle Academy Use Only
xiv
Buffer Cache Advisory View 15-26
Using the V$DB_CACHE_ADVICE View 15-27
Using the Buffer Cache Advisory with EM 15-28
Caching Tables 15-29
Multiple Buffer Pools 15-30
Enabling Multiple Buffer Pools 15-32
Calculating the Hit Ratio for Multiple Pools 15-33
Multiple Block Sizes 15-35
Multiple Database Writers 15-36
Multiple I/O Slaves 15-37
Use Multiple Writers or I/O Slaves 15-38
Private Pool for I/O Intensive Operations 15-39
Automatically Tuned Multiblock Reads 15-40
Flushing the Buffer Cache (for Testing Only) 15-41
Summary 15-42
Practice 15: Overview Tuning the Buffer Cache 15-43
16 Tuning PGA and Temporary Space
Objectives 16-2
SQL Memory Usage 16-3
Performance Impact 16-4
Automatic PGA Memory 16-5
SQL Memory Manager 16-6
Configuring Automatic PGA Memory 16-8
Setting PGA_AGGREGATE_TARGET Initially 16-9
Monitoring SQL Memory Usage 16-10
Monitoring SQL Memory Usage: Examples 16-12
Tuning SQL Memory Usage 16-13
PGA Target Advice Statistics 16-14
PGA Target Advice Histograms 16-15
Automatic PGA and Enterprise Manager 16-16
Automatic PGA and AWR Reports 16-17
Temporary Tablespace Management: Overview 16-18
Temporary Tablespace: Best Practice 16-19
Configuring Temporary Tablespace 16-20
Temporary Tablespace Group: Overview 16-22
Temporary Tablespace Group: Benefits 16-23
Creating Temporary Tablespace Groups 16-24
Maintaining Temporary Tablespace Groups 16-25
View Tablespace Groups 16-26
Monitoring Temporary Tablespace 16-27
Oracle Internal & Oracle Academy Use Only
xv
Temporary Tablespace Shrink 16-28
Tablespace Option for Creating Temporary Table 16-29
Summary 16-30
Practice Overview 16: Tuning PGA Memory 16-31
17 Automatic Memory Management
Objectives 17-2
Oracle Database Architecture 17-3
Dynamic SGA 17-4
Granule 17-5
Memory Advisories 17-6
Manually Adding Granules to Components 17-7
Increasing the Size of an SGA Component 17-8
Automatic Shared Memory Management: Overview 17-9
SGA Sizing Parameters: Overview 17-10
Dynamic SGA Transfer Modes 17-11
Memory Broker Architecture 17-12
Manually Resizing Dynamic SGA Parameters 17-13
Behavior of Auto-Tuned SGA Parameters 17-14
Behavior of Manually Tuned SGA Parameters 17-15
Using the V$PARAMETER View 17-16
Resizing SGA_TARGET 17-17
Disabling Automatic Shared Memory Management 17-18
Configuring ASMM 17-19
SGA Advisor 17-20
Monitoring ASMM 17-21
Automatic Memory Management: Overview 17-22
Oracle Database Memory Parameters 17-24
Automatic Memory Parameter Dependency 17-25
Enabling Automatic Memory Management 17-26
Monitoring Automatic Memory Management 17-27
DBCA and Automatic Memory Management 17-29
Summary 17-30
Practice 17: Overview Using Automatic Memory Tuning 17-31
Oracle Internal & Oracle Academy Use Only
xvi
18 Tuning Segment Space Usage
Objectives 18-2
Space Management 18-3
Extent Management 18-4
Locally Managed Extents 18-5
Large Extents: Considerations 18-6
How Table Data Is Stored 18-8
Anatomy of a Database Block 18-9
Minimize Block Visits 18-10
The DB_BLOCK_SIZE Parameter 18-11
Small Block Size: Considerations 18-12
Large Block Size: Considerations 18-13
Block Allocation 18-14
Free Lists 18-15
Block Space Management 18-16
Block Space Management with Free Lists 18-17
Automatic Segment Space Management 18-19
Automatic Segment Space Management at Work 18-20
Block Space Management with ASSM 18-22
Creating an Automatic Segment Space Management Segment 18-23
Migration and Chaining 18-24
Guidelines for PCTFREE and PCTUSED 18-26
Detecting Migration and Chaining 18-27
Selecting Migrated Rows 18-28
Eliminating Migrated Rows 18-29
Shrinking Segments: Overview 18-31
Shrinking Segments: Considerations 18-32
Shrinking Segments by Using SQL 18-33
Segment Shrink: Basic Execution 18-34
Segment Shrink: Execution Considerations 18-35
Using EM to Shrink Segments 18-36
Table Compression: Overview 18-37
Table Compression Concepts 18-38
Using Table Compression 18-39
Summary 18-40
19 Tuning I/O
Objectives 19-2
I/O Architecture 19-3
File System Characteristics 19-4
I/O Modes 19-5
Oracle Internal & Oracle Academy Use Only
xvii
Direct I/O 19-6
Bandwidth Versus Size 19-7
Important I/O Metrics for Oracle Databases 19-8
I/O Calibration and Enterprise Manager 19-10
I/O Calibration and the PL/SQL Interface 19-11
I/O Statistics: Overview 19-13
I/O Statistics and Enterprise Manager 19-14
Stripe and Mirror Everything 19-16
Using RAID 19-17
RAID Cost Versus Benefits 19-18
Should I Use RAID 1 or RAID 5? 19-20
Diagnostics 19-21
Database I/O Tuning 19-22
What Is Automatic Storage Management? 19-23
Tuning ASM 19-24
How Many Disk Groups per Database 19-25
Which RAID Configuration for Best Availability? 19-26
ASM Mirroring Guidelines 19-27
ASM Striping Granularity 19-28
What Type of Striping Works Best? 19-29
ASM Striping Only 19-30
Hardware RAID Striped LUNs 19-31
ASM Guidelines 19-32
ASM Instance Initialization Parameters 19-33
Dynamic Performance Views 19-34
Monitoring Long-Running Operations by Using V$ASM_OPERATION 19-36
ASM Instance Performance Diagnostics 19-37
ASM Performance Page 19-38
Database Instance Parameter Changes 19-39
ASM Scalability 19-40
Summary 19-41
20 Performance Tuning Summary
Objectives 20-2
Necessary Initialization Parameters with Little Performance Impact 20-3
Important Initialization Parameters with Performance Impact 20-4
Sizing Memory Initially 20-6
Database High Availability: Best Practices 20-7
Undo Tablespace: Best Practices 20-8
Temporary Tablespace: Best Practices 20-9
General Tablespace: Best Practices 20-11
Internal Fragmentation Considerations 20-12
Oracle Internal & Oracle Academy Use Only
xviii
Block Size: Advantages and Disadvantages 20-13
Automatic Checkpoint Tuning 20-14
Sizing the Redo Log Buffer 20-15
Sizing Redo Log Files 20-16
Increasing the Performance of Archiving 20-17
Automatic Statistics Gathering 20-19
Automatic Statistics Collection: Considerations 20-20
Commonly Observed Wait Events 20-21
Additional Statistics 20-22
Top 10 Mistakes Found in Customer Systems 20-23
Summary 20-25
Appendix A: Practices and Solutions
Appendix B: Using Statspack
Index

RE: Installing Forte 3.0.E.0 on top of 3.0.C.0

Jens,
I ran the same road when we were evaluation R3. As far as I know, Forte
changed Express singificantly between Express 20C0 to 20D0 and again to
20E0. Express compatibility levels raised from CL5 to CL7.
So, if you just copied the repository you should have at least the new
versions of express installed in userapp and included the new express
objects into your repository. Then integrate and update the workspaces
in question. This way is very time consuming and probably not supported
by Forte. Otherwise I would assume unpredictable results.
What we did is the following: We exported the entire repository and
started from an new exseed. This should work for you as well.
I you have further questions please let me know
Uli
-------------------------------------------Dipl.-Inform. Ulrich
Beutenmueller
TechnoData Informationstechnik GmbH
Technology Marketing
mailto:[email protected]
http://www.technodata.de
-----Original Message-----
From: Jens Chr Juul Jensen [SMTP:[email protected]]
Sent: Saturday, October 25, 1997 11:46 AM
To: [email protected]
Subject: Installing Forte 3.0.E.0 on top of 3.0.C.0
Hi
I have installed Forte 3.0.E.0 on a system that previously ran 3.0.C.0
as well as EXPRESS.
When I now try to update my (large) workspace, the whole thing freezes
on my Windows95 client.
There is no activity on the server. The server is a VMS-AXP, with some
room left on disks...
Did I forget something during installation, or do I have to Export all
the projects from 3.0.C.0 before upgrading to 3.0.E.0?
(I just copyed centralrepository.* )
Jens Chr Juul Jensen
Kvindeligt Arb. Forbund/KAD
[email protected]

Yes.
I've used a 11Gr2 client to connect to 9i , 10g & 11g datbases. I believe the 11GR2 client is the only one ok'd for Win7 too - check.
I've also known the 9i client to connect to 9i, 10g & 11G dababases - BUT - when a users password expires in 11G, (where mixed case passwords are enabled but not used till now), the 9i and 10g client cannot change it - even to one without any uppercase in it.
Take note that if you are using both 32bit & 64bit ODBC DSN's on a 64bit Windows server , there are separate ODBC Management tools to create the DSN's for 32bit & 64bit. But I digress..
You should always test any compiled client applications - if you have encoded password management within, to an 11G sandpit DB before upgrading the prod instance. We found a requirement to recompile a client executable that did password management, with 11GR2 client libs. By password management, I mean the application had been build with the functionality encoded, to offer a way for the user to change their Oracle password.
I still urge you to upgrade your DB to 11GR2 soon, as 10gr2 is now getting on in years. Risk reduction?
You can always set the DB (or session) parameter "optimizer_features_enabled" to 10.2.0 (or even back to 9.2.0) if some 'tuned' SQL runs slower, or until you have a chance to rewrite the code. [Or let the optimiser automatically capture & evaluate it overnight to find a better plan by itself - the DB is much better/smarter these days]. Oracle also offers 'workload capture and replay' methods to pre-prove all code will perform at same or better levels (and use an existing transfered execution plan for a statement if it cannot) before the move to 11G.
HTH,
Vin.

Installing 10.2.0.5 client on top of 10.2.0.3

Hi,
I am trying to install the Oracle client on a Windows 7 machine (64 bit). I did some looking and found info which recommended installing the Oracle Database 10g Client Release 2 (10.2.0.3), followed by the 10.2.0.5 patch set. I downloaded and installed the 10.2.0.3 client. Next I went to get the patch, not realizing that one must have a support contract in order to download patches. I now see that I can get the 10.2.0.5 client itself. Since I don’t have access to the patch, would it be ok to just install the 10.2.0.5 client?? Would the 10.2.0.5 client replace 10.2.0.3? Or would this approach just lead to trouble?
Thanks for any information or suggestions.

Yes.
I've used a 11Gr2 client to connect to 9i , 10g & 11g datbases. I believe the 11GR2 client is the only one ok'd for Win7 too - check.
I've also known the 9i client to connect to 9i, 10g & 11G dababases - BUT - when a users password expires in 11G, (where mixed case passwords are enabled but not used till now), the 9i and 10g client cannot change it - even to one without any uppercase in it.
Take note that if you are using both 32bit & 64bit ODBC DSN's on a 64bit Windows server , there are separate ODBC Management tools to create the DSN's for 32bit & 64bit. But I digress..
You should always test any compiled client applications - if you have encoded password management within, to an 11G sandpit DB before upgrading the prod instance. We found a requirement to recompile a client executable that did password management, with 11GR2 client libs. By password management, I mean the application had been build with the functionality encoded, to offer a way for the user to change their Oracle password.
I still urge you to upgrade your DB to 11GR2 soon, as 10gr2 is now getting on in years. Risk reduction?
You can always set the DB (or session) parameter "optimizer_features_enabled" to 10.2.0 (or even back to 9.2.0) if some 'tuned' SQL runs slower, or until you have a chance to rewrite the code. [Or let the optimiser automatically capture & evaluate it overnight to find a better plan by itself - the DB is much better/smarter these days]. Oracle also offers 'workload capture and replay' methods to pre-prove all code will perform at same or better levels (and use an existing transfered execution plan for a statement if it cannot) before the move to 11G.
HTH,
Vin.

Oracle Real Application Testing

I'm capturing a 10.2.0.5 RAC workload and attempting to replay it on a 11.2.0.3 RAC. All the Docs describe going from a standalone node to RAC and all the steps for doing so. However, I can't find anything outlining the process from RAC to RAC.
Any help would be appreciated.
Thanks

user12006502 wrote:
I'm capturing a 10.2.0.5 RAC workload and attempting to replay it on a 11.2.0.3 RAC. All the Docs describe going from a standalone node to RAC and all the steps for doing so. However, I can't find anything outlining the process from RAC to RAC.
Any help would be appreciated.
ThanksIt's in there, you just need to look around for it (and probably do a bit of reading).
Things like
http://docs.oracle.com/cd/E11882_01/server.112/e16540/dbr_capture.htm#CACICAAC
Only one workload capture can be performed at any given time. If you have a Oracle Real Application Clusters (Oracle RAC) configuration, workload capture is performed for the entire database. To enable a clean state before starting to capture the workload, all the instances need to be restarted.
and
http://docs.oracle.com/cd/E11882_01/server.112/e16540/dbr_replay.htm#CHDBCADJ
For Oracle Real Application Clusters (Oracle RAC) databases, you can map all connection strings to a load balancing connection string. This is especially useful if the number of nodes on the replay system is different from the capture system. Alternatively, if you want to direct workload to specific instances, you can use services or explicitly specify the instance identifier in the remapped connection strings.
Cheers,

Questions about Real Application Testing(RAT)

Hi All,
We have a production database running on 10gR3 on a server with local drives, while we have a Oracle 11gR2 DB running on a server with NFS mounts (using S7310 - AmberRoad) i.e. Faster and better storage.
We captured the load on 10gR3 and replayed it on 11gR2. We noticed the following:
(1) Replay is considerably slow even though Oracle11gR2 instance has a faster storage. We suspect that it may be something to do with the buffer cache / SGA because there is nothing in cache on the target (we didn't shutdown 10gR2 DB for capture) – what should we do then?
(2) To make sure that we can take the advantage of cache, we replayed the load 2nd time right after the 1st replay and everything ran to our surprise. So we are wondering how’s that possible since we did not restore the DB as we do not want to wipe off the cache (chicken and egg situation)? Does Oracle rollback the changes after the replay?
(3) Do we have to restore database on Target every time we do replay? But if we do that then we won't have anything in the SGA.
So we need your advise and also would like to know how everyone else is doing this testing?
Regards,
RJiv.

DB Replay's workload capture facility allows you to either start capture from a closed (mounted) database (capture starts upon opening the DB), or to begin capture mid-stream during normal activity. Starting capture on the production system from a closed database eliminates the divergence in performance resulting from a primed cache, as well as possible data divergence issues from open, partially-completed transactions at the time the capture started.
For many customers, it will clearly not be possible to close their database during peak periods (!!)
One way to address the cache priming issue is to start capture in production from a closed state during a low period of activity, and the allow capture to run through the peak period.
Another approach is to start capture mid-stream with the DB open and to run capture for a long period (long enough to stabilize the cache). When performing the replay, begin a new AWR snapshot after the cache has stabilized.
Your question about running the replay again after the first replay is done is confusing. Of course you will not get meaningful data from that, since replay must begin from the capture start SCN. If you run replay twice in a row without reverting the database to the capture start SCN, it will be applying meaningless changes to a database in a state that is unlike that of the original. You will be testing the data errors codepath instead of real performance.
It is typical to enable database flashback on the repay database so that it can be repeatedly reverted to the capture start SCN for testing under a variety of scenarios.
Regards,
Jeremiah Wilton
Blue Gecko, Inc.
http://www.bluegecko.net

Real Application Testing 11g

DBMS_WORKLOAD_CAPTURE.START_CAPTURE (name => 'user_alex',
dir => 'TMP',
duration => 30);
END;
/ 2 3 4 5 6
BEGIN
ERROR at line 1:
ORA-15505: cannot start workload capture because instance 1 encountered errors
while accessing directory "/tmp"
ORA-06512: at "SYS.DBMS_WORKLOAD_CAPTURE", line 799
ORA-06512: at line 2
I can't seem to start the workload capture as sys, looks like it can't begin writing the file to /tmp.
OWNER DIRECTORY_NAME
DIRECTORY_PATH
SYS TMP
/tmp
Any help will be appreciated.
Thanks

It turns out that the problem was that the directory used for capture had to be empty, even of files unrelated to capture. The instructions said nothing about using an empty location.

Oracle 11g Database Replay Functionality

Regarding this rather exciting new feature:
I have a security issue around exposing developers to production data on the development system.
Database Replay would seem to insulate the developers from any real world data as SQL inspection is unavailable, transactions are recorded at a binary level.
However I presume the development system data must be restored to the point from when the capture was initiated on the development machine in order for the captured transactions to be replicated successfully?
Therefore we would still have the problem of production data on the development system?
Apologies if this seems a rather strange/stupid question...
Tom

If I interpret your question correctly, you are concerned about replication of production data in test database so that you can replay the workload.
Answer lies here..
http://download.oracle.com/docs/cd/B28359_01/server.111/b28274/wcr.htm#PFGRF033
22.2.1 Prerequisites for Capturing a Database Workload
Before starting a workload capture, you should have a strategy in place to restore the database on the test system. Before a workload can be replayed, the state of the application data on the replay system should be similar to that of the capture system when replay begins. To accomplish this, consider using one of the following methods:
* Recovery Manager (RMAN) DUPLICATE command
* Snapshot standby
* Data Pump Import and Export
This will allow you to restore the database on the replay system to the application state as of the workload capture start time.

Enterprise feature usage: SQL Profile

Is SQL Profile an enterprise Edition feature only? As in, just making use of a profile that was not created in this database?
I've got a development environment, which is licensed for everything. I create an SQL Profile for a bad statement on that Enterprise database, then I transfer it to a standard edition database using:
How to copy SQL Profile from one database to another one. | David Marcos&#039; Blog
When I now execute the statement, I can see that it used the profile, but the following statement returns no hits for me having used this feature:
col name for a50
alter session set nls_date_format='dd month yyyy';
select '## Enterprise Edition Feature Usage Overview:' from dual;
Select name,version,first_usage_date,last_usage_date from dba_feature_usage_statistics where name in ('Advanced Replication','AWR Report','AWR Baseline','Automatic Workload Repository','Backup Encryption','Backup ZLIB Compression','Block Media Recovery','Database Replay: Workload Capture','Database Replay: Workload Replay','Diagnostic Pack','EM Performance Page','Flashback Database','Label Security','OLAP - Analytic Workspaces','OLAP - Cubes','Oracle Secure Backup','Parallel SQL DDL Execution','Parallel SQL DML Execution','Parallel SQL Query Execution','Partitioning (user)','Real-Time SQL Monitoring','Result Cache','SQL Monitoring and Tuning pages','SQL Plan Management','SQL Tuning Set (user)','SecureFile Encryption (user)','Spatial','Tune MView','Tuning Pack','Automatic Maintenance - SQL Tuning Advisor','SQL Profile','SQL Tuning Advisor','SQL Tuning Set (user)') and first_usage_date is not null order by first_usage_date asc;
So my question is: if i've not created the profile in the Standard Edition database... it's just been imported from another database... Am I violating my licensing?

Hi,
> So my question is: if i've not created the profile in the Standard Edition database... it's just been imported from another database... Am I violating my licensing?
You are even violating your Oracle EE license, if you do not have a valid Diagnostics + Tuning pack for it. You can reproduce this very easily as described by Kerry Osborne here: Licensing Requirements for SQL Profiles
SQL Plan Management is included in Oracle EE as an alternative for example: Does the use of SQL Plan Management and the DBMS_SPM database package require a tuning or diagnostic pack license?
Regards
Stefan

Workload capture on 10.2.0.4

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