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PXHCDR.sql
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PXHCDR.sql
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-- Oracle provided script
--
--
--
SPO pxhcdr.log
SET DEF ^ TERM OFF ECHO ON VER OFF SERVEROUT ON SIZE 1000000;
REM
REM $Header: 1460440.1 pxhcdr.sql 12.1.09 2013/06/13 carlos.sierra mauro.pagano $
REM
REM Copyright (c) 2000-2013, Oracle Corporation. All rights reserved.
REM
REM AUTHOR
REM
REM SCRIPT
REM pxhcdr.sql
REM
REM DESCRIPTION
REM Parallel Execution Health-Checks and Diagnostics Reports.
REM
REM This read-only script performs two functions with regard to
REM system-wide parallel execution:
REM 1. Reports on a set of commonly used health-checks.
REM 2. Generates a set of diagnostics reports based on PX
REM performance views, PX static views and system tables.
REM
REM Since pxhcdr.sql is a read-only script, which installs nothing
REM and updates nothing, it is safe to use on any Oracle database
REM 10g or higher, including Dataguard and read-only systems.
REM
REM PRE-REQUISITES
REM 1. Execute as SYS or user with DBA role or user with access
REM to data dictionary views.
REM
REM PARAMETERS
REM 1. Oracle Pack license (Tuning or Diagnostics or None) T|D|N
REM 2. Target directory path for output (optional). Default is cuurent.
REM
REM EXECUTION
REM 1. Start SQL*Plus connecting as SYS or user with DBA role or
REM user with access to data dictionary views.
REM 2. Execute script pxhcdr.sql passing values for parameter.
REM
REM EXAMPLE
REM # sqlplus / as sysdba
REM SQL> START [path]pxhcdr.sql [T|D|N] [target_path]
REM
REM NOTES
REM 1. For possible errors see pxhcdr.log.
REM 2. If site has both Tuning and Diagnostics licenses then
REM specified T (Oracle Tuning pack includes Oracle Diagnostics)
REM
DEF monitor_reports = '25';
DEF small_table_threshold = '1e9';
/**************************************************************************************************/
SET TERM ON ECHO OFF;
PRO
PRO Parameter 1:
PRO Oracle Pack License (Tuning, Diagnostics or None) [T|D|N] (required)
PRO
DEF input_license = '^1';
PRO
PRO Parameter 2:
PRO Target directory path for script output (optional)
PRO
DEF output_path = '^2';
PRO
SET TERM OFF;
COL license NEW_V license FOR A1;
SELECT UPPER(SUBSTR(TRIM('^^input_license.'), 1, 1)) license FROM DUAL;
VAR license CHAR(1);
EXEC :license := '^^license.';
COL full_path NEW_V full_path;
SELECT TRIM('^^output_path.')||CASE
WHEN INSTR('^^output_path.', '/') > 0 THEN '/'
WHEN INSTR('^^output_path.', '\') > 0 THEN '\'
END full_path
FROM DUAL;
COL unique_id NEW_V unique_id FOR A15;
SELECT TO_CHAR(SYSDATE, 'YYYYMMDD_HH24MISS') unique_id FROM DUAL;
SET TERM ON;
WHENEVER SQLERROR EXIT SQL.SQLCODE;
BEGIN
IF '^^license.' IS NULL OR '^^license.' NOT IN ('T', 'D', 'N') THEN
RAISE_APPLICATION_ERROR(-20100, 'Oracle Pack License (Tuning, Diagnostics or None) must be specified as "T" or "D" or "N".');
END IF;
END;
/
WHENEVER SQLERROR CONTINUE;
PRO Value passed:
PRO ~~~~~~~~~~~~
PRO License: "^^input_license."
PRO
SET ECHO ON TIMI ON;
DEF script = 'pxhcdr';
DEF method = 'PXHCDR';
DEF mos_doc = '1460440.1';
DEF doc_ver = '12.1.09';
DEF doc_date = '2014/06/13';
DEF doc_link = 'https://support.oracle.com/CSP/main/article?cmd=show&type=NOT&id=';
DEF bug_link = 'https://support.oracle.com/CSP/main/article?cmd=show&type=BUG&id=';
-- tracing script in case it takes long to execute so we can diagnose it
ALTER SESSION SET TRACEFILE_IDENTIFIER = "^^script._^^unique_id.";
ALTER SESSION SET STATISTICS_LEVEL = 'ALL';
ALTER SESSION SET EVENTS '10046 TRACE NAME CONTEXT FOREVER, LEVEL 12';
/**************************************************************************************************/
/* -------------------------
*
* assembly title
*
* ------------------------- */
-- get database name (up to 10, stop before first '.', no special characters)
COL database_name_short NEW_V database_name_short FOR A10;
SELECT SUBSTR(SYS_CONTEXT('USERENV', 'DB_NAME'), 1, 10) database_name_short FROM DUAL;
SELECT SUBSTR('^^database_name_short.', 1, INSTR('^^database_name_short..', '.') - 1) database_name_short FROM DUAL;
SELECT TRANSLATE('^^database_name_short.',
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 ''`~!@#$%^*()-_=+[]{}\|;:",.<>/?'||CHR(0)||CHR(9)||CHR(10)||CHR(13)||CHR(38),
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789') database_name_short FROM DUAL;
-- get host name (up to 30, stop before first '.', no special characters)
COL host_name_short NEW_V host_name_short FOR A30;
SELECT SUBSTR(SYS_CONTEXT('USERENV', 'SERVER_HOST'), 1, 30) host_name_short FROM DUAL;
SELECT SUBSTR('^^host_name_short.', 1, INSTR('^^host_name_short..', '.') - 1) host_name_short FROM DUAL;
SELECT TRANSLATE('^^host_name_short.',
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 ''`~!@#$%^*()-_=+[]{}\|;:",.<>/?'||CHR(0)||CHR(9)||CHR(10)||CHR(13)||CHR(38),
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789') host_name_short FROM DUAL;
-- get rdbms version
COL rdbms_version NEW_V rdbms_version FOR A17;
SELECT version rdbms_version FROM v$instance;
-- get platform
COL platform NEW_V platform FOR A80;
SELECT UPPER(TRIM(REPLACE(REPLACE(product, 'TNS for '), ':' ))) platform FROM product_component_version WHERE product LIKE 'TNS for%' AND ROWNUM = 1;
-- get instance
COL instance_number NEW_V instance_number FOR A10;
SELECT TO_CHAR(instance_number) instance_number FROM v$instance;
-- YYYYMMDD_HH24MISS
COL time_stamp NEW_V time_stamp FOR A15;
SELECT TO_CHAR(SYSDATE, 'YYYYMMDD_HH24MISS') time_stamp FROM DUAL;
-- YYYY-MM-DD/HH24:MI:SS
COL time_stamp2 NEW_V time_stamp2 FOR A20;
SELECT TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS') time_stamp2 FROM DUAL;
-- get db_block_size
COL sys_db_block_size NEW_V sys_db_block_size FOR A17;
SELECT value sys_db_block_size FROM v$system_parameter2 WHERE LOWER(name) = 'db_block_size';
-- get cpu_count
COL sys_cpu NEW_V sys_cpu FOR A17;
SELECT value sys_cpu FROM v$system_parameter2 WHERE LOWER(name) = 'cpu_count';
-- get ofe
COL sys_ofe NEW_V sys_ofe FOR A17;
SELECT value sys_ofe FROM v$system_parameter2 WHERE LOWER(name) = 'optimizer_features_enable';
-- get ds
COL sys_ds NEW_V sys_ds FOR A10;
SELECT value sys_ds FROM v$system_parameter2 WHERE LOWER(name) = 'optimizer_dynamic_sampling';
/* -------------------------
*
* application vendor
*
* ------------------------- */
-- ebs
COL is_ebs NEW_V is_ebs FOR A1;
COL ebs_owner NEW_V ebs_owner FOR A30;
SELECT 'Y' is_ebs, owner ebs_owner
FROM dba_tab_columns
WHERE table_name = 'FND_PRODUCT_GROUPS'
AND column_name = 'RELEASE_NAME'
AND data_type = 'VARCHAR2'
AND ROWNUM = 1;
-- siebel
COL is_siebel NEW_V is_siebel FOR A1;
COL siebel_owner NEW_V siebel_owner FOR A30;
SELECT 'Y' is_siebel, owner siebel_owner
FROM dba_tab_columns
WHERE '^^is_ebs.' IS NULL
AND table_name = 'S_REPOSITORY'
AND column_name = 'ROW_ID'
AND data_type = 'VARCHAR2'
AND ROWNUM = 1;
-- psft
COL is_psft NEW_V is_psft FOR A1;
COL psft_owner NEW_V psft_owner FOR A30;
SELECT 'Y' is_psft, owner psft_owner
FROM dba_tab_columns
WHERE '^^is_ebs.' IS NULL
AND '^^is_siebel.' IS NULL
AND table_name = 'PSSTATUS'
AND column_name = 'TOOLSREL'
AND data_type = 'VARCHAR2'
AND ROWNUM = 1;
/**************************************************************************************************/
/* -------------------------
*
* main report
*
* ------------------------- */
-- setup to produce report
SET ECHO OFF FEED OFF VER OFF SHOW OFF HEA OFF LIN 2000 NEWP NONE PAGES 0 NUM 20 LONG 2000000 LONGC 2000 SQLC MIX TAB ON TRIMS ON TI OFF TIMI OFF ARRAY 100 NUMF "" SQLP SQL> SUF sql BLO . RECSEP OFF APPI OFF AUTOT OFF;
/* -------------------------
*
* gv$sql_shared_cursor
*
* ------------------------- */
SPO sql_shared_cursor.sql;
PRO SELECT /* ^^script..sql Cursor Sharing as per Reason */
PRO CHR(10)||'<tr>'||CHR(10)||
PRO '<td class="r">'||ROWNUM||'</td>'||CHR(10)||
PRO '<td>'||v2.reason||'</td>'||CHR(10)||
PRO '<td class="c">'||v2.inst_id||'</td>'||CHR(10)||
PRO '<td class="r">'||v2.cursors||'</td>'||CHR(10)||
PRO '</tr>'
PRO FROM (
SELECT (CASE WHEN ROWNUM > 1 THEN 'UNION ALL'||CHR(10) END)||
'SELECT '''||v.column_name||''' reason, inst_id, COUNT(*) cursors FROM gv$sql_shared_cursor WHERE '||v.column_name||' = ''Y'' GROUP BY inst_id' line
FROM (
SELECT /*+ NO_MERGE */
column_name
FROM dba_tab_cols
WHERE owner = 'SYS'
AND table_name = 'GV_$SQL_SHARED_CURSOR'
AND data_type = 'VARCHAR2'
AND data_length = 1
ORDER BY
column_name ) v;
PRO ORDER BY reason, inst_id ) v2;;
SPO OFF;
/* -------------------------
*
* heading
*
* ------------------------- */
SPO ^^script._^^database_name_short._^^host_name_short._^^rdbms_version._^^time_stamp._main.html;
PRO <html>
PRO <!-- $Header: ^^mos_doc. ^^script..sql ^^doc_ver. ^^doc_date. carlos.sierra $ -->
PRO <!-- Copyright (c) 2000-2012, Oracle Corporation. All rights reserved. -->
PRO <!-- Author: [email protected] -->
PRO
PRO <head>
PRO <title>^^script._^^database_name_short._^^host_name_short._^^rdbms_version._^^time_stamp._main.html</title>
PRO
PRO <style type="text/css">
PRO body {font:10pt Arial,Helvetica,Verdana,Geneva,sans-serif; color:black; background:white;}
PRO a {font-weight:bold; color:#663300;}
PRO pre {font:8pt Monaco,"Courier New",Courier,monospace;} /* for code */
PRO h1 {font-size:16pt; font-weight:bold; color:#336699;}
PRO h2 {font-size:14pt; font-weight:bold; color:#336699;}
PRO h3 {font-size:12pt; font-weight:bold; color:#336699;}
PRO li {font-size:10pt; font-weight:bold; color:#336699; padding:0.1em 0 0 0;}
PRO table {font-size:8pt; color:black; background:white;}
PRO th {font-weight:bold; background:#cccc99; color:#336699; vertical-align:bottom; padding-left:3pt; padding-right:3pt; padding-top:1pt; padding-bottom:1pt;}
PRO td {text-align:left; background:#fcfcf0; vertical-align:top; padding-left:3pt; padding-right:3pt; padding-top:1pt; padding-bottom:1pt;}
PRO td.c {text-align:center;} /* center */
PRO td.l {text-align:left;} /* left (default) */
PRO td.r {text-align:right;} /* right */
PRO font.n {font-size:8pt; font-style:italic; color:#336699;} /* table footnote in blue */
PRO font.f {font-size:8pt; color:#999999;} /* footnote in gray */
PRO </style>
PRO
PRO </head>
PRO <body>
PRO <h1><a target="MOS" href="^^doc_link.^^mos_doc.">^^mos_doc.</a> ^^method.
PRO ^^doc_ver. Report: ^^script._^^database_name_short._^^host_name_short._^^rdbms_version._^^time_stamp._main.html</h1>
PRO
PRO <pre>
PRO License : ^^input_license.
PRO RDBMS : ^^rdbms_version.
PRO Platform : ^^platform.
PRO Instance : ^^instance_number.
PRO CPU Count : ^^sys_cpu.
PRO Block Size: ^^sys_db_block_size.
PRO OFE : ^^sys_ofe.
PRO DYN_SAMP : ^^sys_ds.
PRO EBS : "^^is_ebs."
PRO SIEBEL : "^^is_siebel."
PRO PSFT : "^^is_psft."
PRO Date : ^^time_stamp2.
PRO </pre>
PRO <ul>
PRO <li><a href="#obs">Observations</a></li>
PRO <li><a href="#pdlm">Parallel Degree Limit Method</a></li>
PRO <li><a href="#buf_adv">PX Buffer Advice</a></li>
PRO <li><a href="#pq_syssta">PQ System Statistics</a></li>
PRO <li><a href="#px_syssta">PX System Statistics</a></li>
PRO <li><a href="#par_syssta">System Statistics</a></li>
PRO <li><a href="#pq_slaves">PQ Slaves</a></li>
PRO <li><a href="#px_sess">PX Sessions</a></li>
PRO <li><a href="#services">Services</a></li>
PRO <li><a href="#io_cal">I/O Calibration Results</a></li> <!-- 11g -->
PRO <li><a href="#osstat">Operating System Statistics</a></li>
PRO <li><a href="#sysstat">System Statistics</a></li>
PRO <li><a href="#sysstath">System Statistics History</a></li>
PRO <li><a href="#sgastat">System Global Area (SGA) Statistics</a></li>
PRO <li><a href="#sgastath">System Global Area (SGA) Statistics History</a></li>
PRO <li><a href="#sys_params">System Parameters with Non-Default or Modified Values</a></li>
PRO <li><a href="#inst_params">Instance Parameters</a></li>
PRO <li><a href="#sql_monitor">SQL Monitor</a></li> <!-- 11g -->
PRO <li><a href="#share_vc">Version Count as per Cursor Sharing</a></li>
PRO <li><a href="#share_r">Cursor Sharing and Reason</a></li>
PRO </ul>
/* -------------------------
*
* observations
*
* ------------------------- */
PRO <a name="obs"></a><h2>Observations</h2>
PRO
PRO Observations below are the outcome of several heath-checks on your system with regard to Parallel Execution (PX).<br>
PRO Review them carefully and take action when appropriate.<br>
PRO Note: Ignore possible errors about dba_rsrc_io_calibrate and gv$io_calibration_status on 10g:
PRO
PRO <table>
PRO
PRO <tr>
PRO <th>Type</th>
PRO <th>Name</th>
PRO <th>Observation</th>
PRO <th>Details</th>
PRO </tr>
PRO
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
-- parallel_instance_group not in services or instance_groups
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td>System Parameter</td>'||CHR(10)||
'<td>parallel_instance_group</td>'||CHR(10)||
'<td>Value "'||pig.value||'" on instance '||pig.inst_id||' does not exist as a service or instance group.</td>'||CHR(10)||
'<td>Unset this parallel_instance_group or verify it matches a valid service or a value in instance_groups parameter.<br>'||CHR(10)||
'See <a target="MOS" href="^^doc_link.7352775.8">7352775.8</a>, <a target="MOS" href="^^doc_link.750645.1">750645.1</a> and <a target="MOS" href="^^bug_link.13940162">13940162</a>.</td>'||CHR(10)||
'</tr>'
FROM gv$system_parameter2 pig
WHERE LOWER(pig.name) = 'parallel_instance_group'
AND TRIM(REPLACE(REPLACE(pig.value, ''''), '"')) IS NOT NULL
AND NOT EXISTS (
SELECT NULL
FROM gv$services gsv
WHERE gsv.name = pig.value )
AND NOT EXISTS (
SELECT NULL
FROM gv$system_parameter2 igr
WHERE LOWER(igr.name) = 'instance_groups'
AND igr.value = pig.value );
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
-- parallel_instance_group is set or modified to a null value
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td>System Parameter</td>'||CHR(10)||
'<td>parallel_instance_group</td>'||CHR(10)||
'<td>A NULL value of this parameter on instance '||pig.inst_id||' is not valid.</td>'||CHR(10)||
'<td>Unset this parallel_instance_group parameter altogether.</td>'||CHR(10)||
'</tr>'
FROM gv$system_parameter2 pig
WHERE LOWER(pig.name) = 'parallel_instance_group'
AND TRIM(REPLACE(REPLACE(pig.value, ''''), '"')) IS NULL
AND (pig.isdefault = 'FALSE' OR pig.ismodified <> 'FALSE');
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
-- parallel_max_servers > cpu_count * 4 * parallel_threads_per_cpu
WITH
pms AS (SELECT /*+ MATERIALIZE */ inst_id, TO_NUMBER(value) value FROM gv$system_parameter2 WHERE LOWER(name) = 'parallel_max_servers'),
cpc AS (SELECT /*+ MATERIALIZE */ inst_id, TO_NUMBER(value) value FROM gv$system_parameter2 WHERE LOWER(name) = 'cpu_count'),
tpc AS (SELECT /*+ MATERIALIZE */ inst_id, TO_NUMBER(value) value FROM gv$system_parameter2 WHERE LOWER(name) = 'parallel_threads_per_cpu'),
wsp AS (SELECT /*+ MATERIALIZE */ inst_id, CASE WHEN value = 'AUTO' THEN 2 ELSE 1 END value FROM gv$system_parameter2 WHERE LOWER(name) = 'workarea_size_policy'),
stg AS (SELECT /*+ MATERIALIZE */ inst_id, CASE WHEN value > 0 THEN 4 ELSE NULL END value FROM gv$system_parameter2 WHERE LOWER(name) = 'sga_target'),
mtg AS (SELECT /*+ MATERIALIZE */ inst_id, CASE WHEN value > 0 THEN 4 ELSE NULL END value FROM gv$system_parameter2 WHERE LOWER(name) = 'memory_target'),
vrs AS (SELECT /*+ MATERIALIZE */ substr(version,1,4) version from gv$instance)
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td>System Parameter</td>'||CHR(10)||
'<td>parallel_max_servers</td>'||CHR(10)||
'<td>A value of '||pms.value||' for this parameter on instance '||pms.inst_id||' seems too high.</td>'||CHR(10)||
'<td>Consider reducing this value to at most cpu_count * parallel_threads_per_cpu '||CASE WHEN vrs.version >= '11.2' THEN '* 5 * concurrent_parallel_users' ELSE '* 4' END ||'.<br>'||CHR(10)||
'Current value for cpu_count is '||cpc.value||' and for parallel_threads_per_cpu is '||tpc.value||'.</td>'||CHR(10)||
'</tr>'
FROM pms, cpc, tpc, wsp, stg, mtg, vrs
WHERE pms.inst_id = cpc.inst_id
AND cpc.inst_id = tpc.inst_id
AND tpc.inst_id = pms.inst_id
AND cpc.inst_id = wsp.inst_id
AND cpc.inst_id = stg.inst_id(+)
AND cpc.inst_id = mtg.inst_id(+)
AND pms.value > CASE WHEN vrs.version >= '11.2' THEN cpc.value * 5 * tpc.value * NVL(mtg.value,NVL(stg.value,wsp.value)) ELSE cpc.value * 4 * tpc.value END;
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
-- parallel_servers_target > 0.75 * parallel_max_servers
WITH
pst AS (SELECT /*+ MATERIALIZE */ inst_id, TO_NUMBER(value) value FROM gv$system_parameter2 WHERE LOWER(name) = 'parallel_servers_target'),
pms AS (SELECT /*+ MATERIALIZE */ inst_id, TO_NUMBER(value) value FROM gv$system_parameter2 WHERE LOWER(name) = 'parallel_max_servers')
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td>System Parameter</td>'||CHR(10)||
'<td>parallel_servers_target</td>'||CHR(10)||
'<td>A value of '||pst.value||' for this parameter on instance '||pst.inst_id||' seems too high.</td>'||CHR(10)||
'<td>Consider reducing this value to at most 0.75 * parallel_max_servers.<br>'||CHR(10)||
'Current value for parallel_max_servers is '||pms.value||'.</td>'||CHR(10)||
'</tr>'
FROM pst, pms
WHERE pst.inst_id = pms.inst_id
AND pst.value > 0.75 * pms.value;
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
-- parallel_adaptive_multi_user is set
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td>System Parameter</td>'||CHR(10)||
'<td>parallel_adaptive_multi_user</td>'||CHR(10)||
'<td>Parallel adaptive muti-user is enabled on instance '||amu.inst_id||'.</td>'||CHR(10)||
'<td>Be aware that degree of parallelism (DOP) may be reduced at time of execution.</td>'||CHR(10)||
'</tr>'
FROM gv$system_parameter2 amu
WHERE LOWER(amu.name) = 'parallel_adaptive_multi_user'
AND amu.value = 'TRUE';
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
-- parallel_automatic_tuning is set
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td>System Parameter</td>'||CHR(10)||
'<td>parallel_automatic_tuning</td>'||CHR(10)||
'<td>Parallel automatic tuning is enabled on instance '||aut.inst_id||'.</td>'||CHR(10)||
'<td>This parameter is deprecated as of 10g. Avoid using it.</td>'||CHR(10)||
'</tr>'
FROM gv$system_parameter2 aut
WHERE LOWER(aut.name) = 'parallel_automatic_tuning'
AND aut.value = 'TRUE';
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
-- parallel_execution_message_size has different values
WITH
ems AS (SELECT /*+ MATERIALIZE */ MIN(TO_NUMBER(value)) min_value, MAX(TO_NUMBER(value)) max_value FROM gv$system_parameter2 WHERE LOWER(name) = 'parallel_execution_message_size')
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td>System Parameter</td>'||CHR(10)||
'<td>parallel_execution_message_size</td>'||CHR(10)||
'<td>Parallel execution message size ranges between '||ems.min_value||' and '||ems.max_value||'.</td>'||CHR(10)||
'<td>All RAC nodes must have same value. Fix this error immediately.<br>'||CHR(10)||
'See <a target="MOS" href="^^doc_link.752967.1">752967.1</a>, <a target="MOS" href="^^doc_link.1374088.1">1374088.1</a> and <a target="MOS" href="^^bug_link.7486699">7486699</a>.</td>'||CHR(10)||
'</tr>'
FROM ems
WHERE ems.min_value <> ems.max_value;
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
-- parallel_execution_message_size < 8K
WITH
ems AS (SELECT /*+ MATERIALIZE */ inst_id, TO_NUMBER(value) value FROM gv$system_parameter2 WHERE LOWER(name) = 'parallel_execution_message_size')
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td>System Parameter</td>'||CHR(10)||
'<td>parallel_execution_message_size</td>'||CHR(10)||
'<td>Parallel execution message size of '||ems.value||' in instance '||ems.inst_id||' is too small.</td>'||CHR(10)||
'<td>A size smaller than 8K may produce message fragmentation "PX Deq: Msg Fragment". Consider increasing the message size.<br>'||CHR(10)||
'See <a target="MOS" href="^^doc_link.254760.1">254760.1</a> and <a target="MOS" href="^^doc_link.9792010.8">9792010.8</a>.</td>'||CHR(10)||
'</tr>'
FROM ems
WHERE ems.value < 8192;
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
-- 11g dba_rsrc_io_calibrate
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td>IO Calibration Results</td>'||CHR(10)||
'<td>dba_rsrc_io_calibrate</td>'||CHR(10)||
'<td>There seems to be no I/O Calibration results.</td>'||CHR(10)||
'<td>Consider using DBMS_RESOURCE_MANAGER.CALIBRATE_IO.</td>'||CHR(10)||
'</tr>'
FROM dba_rsrc_io_calibrate
WHERE '^^rdbms_version.' LIKE '11%'
HAVING COUNT(*) = 0;
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
-- 11g gv$io_calibration_status
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td>IO Calibration Status</td>'||CHR(10)||
'<td>gv$io_calibration_status</td>'||CHR(10)||
'<td>'||status||' for instance '||inst_id||'.</td>'||CHR(10)||
'<td>Time of last calibration: '||calibration_time||'.</td>'||CHR(10)||
'</tr>'
FROM gv$io_calibration_status
ORDER BY
inst_id;
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
-- parallel_degree_policy is set to AUTO
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td>System Parameter</td>'||CHR(10)||
'<td>parallel_degree_policy</td>'||CHR(10)||
'<td>Parallel degree policy is set to AUTO in '||COUNT(*)||' instance(s).</td>'||CHR(10)||
'<td>AUTO enables automatic degree of parallelism, statement queuing, and in-memory parallel execution.</td>'||CHR(10)||
'</tr>'
FROM gv$system_parameter2 pdp
WHERE LOWER(pdp.name) = 'parallel_degree_policy'
AND pdp.value = 'AUTO'
HAVING COUNT(*) > 0;
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
-- tables < 1G with dop <> 1
WITH
tables AS (
SELECT /*+ MATERIALIZE */
t.owner,
t.table_name,
TRIM(t.degree)table_degree,
t.blocks,
t.partitioned tab_part,
t.temporary
FROM dba_tables t
WHERE t.degree IS NOT NULL
AND TRIM(t.degree) <> '1'
AND t.blocks * ^^sys_db_block_size. < ^^small_table_threshold.
)
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td>Degree of Parallelism</td>'||CHR(10)||
'<td>Non-default DOP</td>'||CHR(10)||
'<td>Schema '||owner||' contains '||COUNT(*)||' small table(s) with DOP set.</td>'||CHR(10)||
'<td>Setting DOP in small tables (smaller than '||ROUND(^^small_table_threshold./1e9, 3)||' GB) may promote PX plans for which a serial plan may be more convenient. Review DOP report.</td>'||CHR(10)||
'</tr>'
FROM tables
GROUP BY
owner
ORDER BY
owner;
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
-- tables dop <> indexes dop
WITH
tables_n_indexes AS (
SELECT /*+ MATERIALIZE */
t.owner,
t.table_name,
TRIM(t.degree) table_degree,
TRIM(t.instances) table_instances,
t.blocks,
t.partitioned tab_part,
t.temporary,
i.index_name,
i.index_type,
TRIM(i.degree) index_degree,
TRIM(i.instances) index_instances,
i.leaf_blocks,
i.partitioned idx_part
FROM dba_tables t,
dba_indexes i
WHERE t.degree IS NOT NULL
AND i.table_owner = t.owner
AND i.table_name = t.table_name
AND i.table_type = 'TABLE'
AND i.index_type <> 'LOB'
AND i.degree IS NOT NULL
AND TRIM(i.degree) <> TRIM(t.degree)
),
tables AS (
SELECT /*+ MATERIALIZE */
owner,
table_name
FROM tables_n_indexes
GROUP BY
owner,
table_name
)
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td>Degree of Parallelism</td>'||CHR(10)||
'<td>DOP mismatch</td>'||CHR(10)||
'<td>Schema '||owner||' contains '||COUNT(*)||' table(s) with DOP different than one or more index(es).</td>'||CHR(10)||
'<td>This DOP mismatch between tables and indexes is more probably by accident. It may produce some unexpected PX plans. Review DOP report.</td>'||CHR(10)||
'</tr>'
FROM tables
GROUP BY
owner
ORDER BY
owner;
PRO
PRO <tr>
PRO <th>Type</th>
PRO <th>Name</th>
PRO <th>Observation</th>
PRO <th>Details</th>
PRO </tr>
PRO
PRO </table>
PRO
/* -------------------------
*
* parallel degree limit method
*
* ------------------------- */
PRO <a name="pdlm"></a><h2>Parallel Degree Limit Method</h2>
PRO
PRO Collected from GV$PARALLEL_DEGREE_LIMIT_MTH.
PRO
PRO <table>
PRO
PRO <tr>
PRO <th>#</th>
PRO <th>Inst</th>
PRO <th>Name</th>
PRO </tr>
PRO
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td class="r">'||ROWNUM||'</td>'||CHR(10)||
'<td class="c">'||v.inst_id||'</td>'||CHR(10)||
'<td>'||v.name||'</td>'||CHR(10)||
'</tr>'
FROM (
SELECT /*+ NO_MERGE */
inst_id,
name
FROM gv$parallel_degree_limit_mth
ORDER BY
inst_id,
name ) v;
PRO
PRO <tr>
PRO <th>#</th>
PRO <th>Inst</th>
PRO <th>Name</th>
PRO </tr>
PRO
PRO </table>
PRO
/* -------------------------
*
* px buffer advice
*
* ------------------------- */
PRO <a name="buf_adv"></a><h2>PX Buffer Advice</h2>
PRO
PRO Collected from GV$PX_BUFFER_ADVICE.
PRO
PRO <table>
PRO
PRO <tr>
PRO <th>#</th>
PRO <th>Inst</th>
PRO <th>Statistic</th>
PRO <th>Value</th>
PRO </tr>
PRO
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td class="r">'||ROWNUM||'</td>'||CHR(10)||
'<td class="c">'||v.inst_id||'</td>'||CHR(10)||
'<td>'||v.statistic||'</td>'||CHR(10)||
'<td class="r">'||value||'</td>'||CHR(10)||
'</tr>'
FROM (
SELECT /*+ NO_MERGE */
inst_id,
statistic,
value
FROM gv$px_buffer_advice
ORDER BY
inst_id,
statistic ) v;
PRO
PRO <tr>
PRO <th>#</th>
PRO <th>Inst</th>
PRO <th>Statistic</th>
PRO <th>Value</th>
PRO </tr>
PRO
PRO </table>
PRO
/* -------------------------
*
* pq system statistics
*
* ------------------------- */
PRO <a name="pq_syssta"></a><h2>PQ System Statistics</h2>
PRO
PRO Collected from GV$PQ_SYSSTAT.
PRO
PRO <table>
PRO
PRO <tr>
PRO <th>#</th>
PRO <th>Inst</th>
PRO <th>Statistic</th>
PRO <th>Value</th>
PRO </tr>
PRO
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td class="r">'||ROWNUM||'</td>'||CHR(10)||
'<td class="c">'||v.inst_id||'</td>'||CHR(10)||
'<td>'||v.statistic||'</td>'||CHR(10)||
'<td class="r">'||v.value||'</td>'||CHR(10)||
'</tr>'
FROM (
SELECT /*+ NO_MERGE */
inst_id,
statistic,
value
FROM gv$pq_sysstat
ORDER BY
inst_id,
statistic ) v;
PRO
PRO <tr>
PRO <th>#</th>
PRO <th>Inst</th>
PRO <th>Statistic</th>
PRO <th>Value</th>
PRO </tr>
PRO
PRO </table>
PRO
/* -------------------------
*
* px system statistics
*
* ------------------------- */
PRO <a name="px_syssta"></a><h2>PX System Statistics</h2>
PRO
PRO Collected from GV$PX_PROCESS_SYSSTAT.
PRO
PRO <table>
PRO
PRO <tr>
PRO <th>#</th>
PRO <th>Inst</th>
PRO <th>Statistic</th>
PRO <th>Value</th>
PRO </tr>
PRO
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td class="r">'||ROWNUM||'</td>'||CHR(10)||
'<td class="c">'||v.inst_id||'</td>'||CHR(10)||
'<td>'||v.statistic||'</td>'||CHR(10)||
'<td class="r">'||v.value||'</td>'||CHR(10)||
'</tr>'
FROM (
SELECT /*+ NO_MERGE */
inst_id,
statistic,
value
FROM gv$px_process_sysstat
ORDER BY
inst_id,
statistic ) v;
PRO
PRO <tr>
PRO <th>#</th>
PRO <th>Inst</th>
PRO <th>Statistic</th>
PRO <th>Value</th>
PRO </tr>
PRO
PRO </table>
PRO
/* -------------------------
*
* system statistics
*
* ------------------------- */
PRO <a name="par_syssta"></a><h2>System Statistics</h2>
PRO
PRO Collected from GV$SYSSTAT.
PRO
PRO <table>
PRO
PRO <tr>
PRO <th>#</th>
PRO <th>Inst</th>
PRO <th>Statistic</th>
PRO <th>Value</th>
PRO </tr>
PRO
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td class="r">'||ROWNUM||'</td>'||CHR(10)||
'<td class="c">'||v.inst_id||'</td>'||CHR(10)||
'<td>'||v.name||'</td>'||CHR(10)||
'<td class="r">'||v.value||'</td>'||CHR(10)||
'</tr>'
FROM (
SELECT /*+ NO_MERGE */
inst_id,
name,
value
FROM gv$sysstat
ORDER BY
inst_id,
name ) v;
PRO
PRO <tr>
PRO <th>#</th>
PRO <th>Inst</th>
PRO <th>Statistic</th>
PRO <th>Value</th>
PRO </tr>
PRO
PRO </table>
PRO
/* -------------------------
*
* pq slaves
*
* ------------------------- */
PRO <a name="pq_slaves"></a><h2>PQ Slaves</h2>
PRO
PRO Collected from GV$PQ_SLAVE.
PRO
PRO <table>
PRO
PRO <tr>
PRO <th>#</th>
PRO <th>Inst</th>
PRO <th>Slave<br>Name</th>
PRO <th>Status</th>
PRO <th>Sessions</th>
PRO <th>Idle<br>Time<br>Total</th>
PRO <th>Busy<br>Time<br>Total</th>
PRO <th>CPU<br>Secs<br>Total</th>
PRO <th>Msgs<br>Sent<br>Total</th>
PRO <th>Msgs<br>Rcvd<br>Total</th>
PRO </tr>
PRO
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
SELECT CHR(10)||'<tr>'||CHR(10)||
'<td class="r">'||ROWNUM||'</td>'||CHR(10)||
'<td class="c">'||v.inst_id||'</td>'||CHR(10)||
'<td>'||v.slave_name||'</td>'||CHR(10)||
'<td>'||v.status||'</td>'||CHR(10)||
'<td class="r">'||v.sessions||'</td>'||CHR(10)||
'<td class="r">'||v.idle_time_total||'</td>'||CHR(10)||
'<td class="r">'||v.busy_time_total||'</td>'||CHR(10)||
'<td class="r">'||v.cpu_secs_total||'</td>'||CHR(10)||
'<td class="r">'||v.msgs_sent_total||'</td>'||CHR(10)||
'<td class="r">'||v.msgs_rcvd_total||'</td>'||CHR(10)||
'</tr>'
FROM (
SELECT /*+ NO_MERGE */
inst_id,
slave_name,
status,
sessions,
idle_time_total,
busy_time_total,
cpu_secs_total,
msgs_sent_total,
msgs_rcvd_total
FROM gv$pq_slave
ORDER BY
inst_id,
slave_name ) v;
PRO
PRO <tr>
PRO <th>#</th>
PRO <th>Inst</th>
PRO <th>Slave<br>Name</th>
PRO <th>Status</th>
PRO <th>Sessions</th>
PRO <th>Idle<br>Time<br>Total</th>
PRO <th>Busy<br>Time<br>Total</th>
PRO <th>CPU<br>Secs<br>Total</th>
PRO <th>Msgs<br>Sent<br>Total</th>
PRO <th>Msgs<br>Rcvd<br>Total</th>
PRO </tr>
PRO
PRO </table>
PRO
/* -------------------------
*
* px sessions
*
* ------------------------- */
PRO <a name="px_sess"></a><h2>PX Sessions</h2>
PRO
PRO Collected from GV$PX_SESSION.
PRO
PRO <table>
PRO
PRO <tr>
PRO <th>#</th>
PRO <th>Inst</th>
PRO <th>QC<br>SID</th>
PRO <th>Server<br>Name</th>
PRO <th>SID</th>
PRO <th>Serial#</th>
PRO <th>PID</th>
PRO <th>SPID</th>
PRO <th>Server<br>Group</th>
PRO <th>Server<br>Set</th>
PRO <th>Server#</th>
PRO <th>Degree</th>
PRO <th>Req<br>Degree</th>
PRO <th>Wait Event</th>
PRO <th>SQL_ID</th>
PRO <th>Child#</th>
PRO <th>Resource<br>Consumer<br>Group</th>
PRO <th>Module</th>
PRO <th>Action</th>
PRO </tr>
PRO
SELECT '<!-- '||TO_CHAR(SYSDATE, 'YYYY-MM-DD/HH24:MI:SS')||' -->' FROM dual;
PRO <!-- Please Wait -->
SELECT /* ^^script..sql PX Sessions */
CHR(10)||'<tr>'||CHR(10)||
'<td class="r">'||ROWNUM||'</td>'||CHR(10)||
v.line||
'</tr>'
FROM (
SELECT /*+ NO_MERGE */
'<td class="c">'||pxs.inst_id||'</td>'||CHR(10)||
'<td class="c">'||pxs.qcsid||'</td>'||CHR(10)||
'<td>'||NVL(pxp.server_name, 'QC')||'</td>'||CHR(10)||
'<td class="c">'||pxs.sid||'</td>'||CHR(10)||
'<td class="c">'||pxs.serial#||'</td>'||CHR(10)||
'<td class="c">'||NVL(pxp.pid, pro.pid)||'</td>'||CHR(10)||
'<td class="c">'||NVL(pxp.spid, pro.spid)||'</td>'||CHR(10)||
'<td class="r">'||pxs.server_group||'</td>'||CHR(10)||
'<td class="r">'||pxs.server_set||'</td>'||CHR(10)||
'<td class="r">'||pxs.server#||'</td>'||CHR(10)||