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Oracle 11g manual running ASH report

2025-01-29 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >

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Oracle 11g RAC environment, node 2

[oracle@db2 ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Fri Dec 15 21:08:14 2017

Copyright (c) 1982, 2011, Oracle. All rights reserved.

Connected to:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,

Data Mining and Real Application Testing options

SQL> @?/ rdbms/admin/ashrpt.sql;

Current Instance

~~~~~~~~~~~~~~~~

DB Id DB Name Inst Num Instance

----------- ------------ -------- ------------

893820404 SCPRD 2 SCPRD2

Specify the Report Type

~~~~~~~~~~~~~~~~~~~~~~~

Enter 'html' for an HTML report, or 'text' for plain text

Defaults to 'html'

Enter value for report_type:

Type Specified: html

Instances in this Workload Repository schema

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

DB Id Inst Num DB Name Instance Host

------------ -------- ------------ ------------ ------------

* 893820404 2 SCPRD SCPRD2 db2

893820404 1 SCPRD SCPRD1 db1

Defaults to current database

Using database id: 893820404

Enter instance numbers. Enter 'ALL' for all instances in a

RAC cluster or explicitly specify list of instances (e.g., 1,2,3).

Defaults to current instance.

Using instance number(s): 2

ASH Samples in this Workload Repository schema

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Oldest ASH sample available: 07-Dec-17 11:00:25 [ 12130 mins in the past]

Latest ASH sample available: 15-Dec-17 21:10:54 [ 0 mins in the past]

Specify the timeframe to generate the ASH report

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Enter begin time for report:

-- Valid input formats:

-- To specify absolute begin time:

-- [MM/DD[/YY]] HH24:MI[:SS]

-- Examples: 02/23/03 14:30:15

-- 02/23 14:30:15

-- 14:30:15

-- 14:30

-- To specify relative begin time: (start with '-' sign)

-- -[HH24:]MI

-- Examples: -1:15 (SYSDATE - 1 Hr 15 Mins)

-- -25 (SYSDATE - 25 Mins)

Defaults to -15 mins

Enter value for begin_time: 12/15/17 21:11:00

Report begin time specified: 12/15/17 21:11:00

Enter duration in minutes starting from begin time:

Defaults to SYSDATE - begin_time

Press Enter to analyze till current time

Enter value for duration:10

Using 15-Dec-17 21:11:00 as report begin time

Using 15-Dec-17 21:13:22 as report end time

Specify Slot Width (using ashrpti.sql) for 'Activity Over Time' section

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

-- Explanation:

-- In the 'Activity Over Time' section of the ASH report,

-- the analysis period is divided into smaller slots

-- and top wait events are reported in each of those slots.

-- Default:

-- The analysis period will be automatically split upto 10 slots

-- complying to a minimum slot width of

-- 1 minute, if the source is V$ACTIVE_SESSION_HISTORY or

-- 5 minutes, if the source is DBA_HIST_ACTIVE_SESS_HISTORY.

Specify Slot Width in seconds to use in the 'Activity Over Time' section:

Defaults to a value as explained above:

Slot Width specified:

Specify Report Targets (using ashrpti.sql) to generate the ASH report

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

-- Explanation:

-- ASH Report can accept "Report Targets",

-- like a particular SQL statement, or a particular SESSION,

-- to generate the report on. If one or more report targets are

-- specified, then the data used to generate the report will only be

-- the ASH samples that pertain to ALL the specified report targets.

-- Default:

-- If none of the report targets are specified,

-- then the target defaults to all activity in the database instance.

Specify SESSION_ID (eg: from V$SESSION.SID) report target:

Defaults to NULL:

SESSION report target specified:

Specify SQL_ID (eg: from V$SQL.SQL_ID) report target:

Defaults to NULL: (% and _ wildcards allowed)

SQL report target specified:

Specify WAIT_CLASS name (eg: from V$EVENT_NAME.WAIT_CLASS) report target:

[Enter 'CPU' to investigate CPU usage]

Defaults to NULL: (% and _ wildcards allowed)

WAIT_CLASS report target specified:

Specify SERVICE_HASH (eg: from V$ACTIVE_SERVICES.NAME_HASH) report target:

Defaults to NULL:

SERVICE report target specified:

Specify MODULE name (eg: from V$SESSION.MODULE) report target:

Defaults to NULL: (% and _ wildcards allowed)

MODULE report target specified:

Specify ACTION name (eg: from V$SESSION.ACTION) report target:

Defaults to NULL: (% and _ wildcards allowed)

ACTION report target specified:

Specify CLIENT_ID (eg: from V$SESSION.CLIENT_IDENTIFIER) report target:

Defaults to NULL: (% and _ wildcards allowed)

CLIENT_ID report target specified:

Specify PLSQL_ENTRY name (eg: "SYS.DBMS_LOB.* ") report target:

Defaults to NULL: (% and _ wildcards allowed)

PLSQL_ENTRY report target specified:

Specify the Report Name

~~~~~~~~~~~~~~~~~~~~~~~

The default report file name is ashrpt_2_1215_2113.html. To use this name,

press to continue, otherwise enter an alternative.

Enter value for report_name:

Using the report name ashrpt_2_1215_2113.html

Summary of All User Input

-------------------------

Format : HTML

DB Id : 893820404

Inst num : 2

Begin time : 15-Dec-17 21:11:00

End time : 15-Dec-17 21:13:22

Slot width : Default

Report targets : 0

Report name : ashrpt_2_1215_2113.html

......

Back to Top

End of Report

Report written to ashrpt_2_1215_2113.html

I chose to grab 10 minutes, but the current time is less than 10 minutes, so the end time automatically selects the current time.

Download the ASH report.

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