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Isku day lagu abuurayo analooga ASH ee PostgreSQL

Abuurista dhibaatada

Si loo hagaajiyo weydiimaha PostgreSQL, awoodda lagu falanqeeyo taariikhda waxqabadka, gaar ahaan, sugitaanka, qufulka, iyo tirakoobka miiska, ayaa aad loo baahan yahay.

Fursadaha la heli karo

Qalabka Falanqaynta Culeyska Shaqada ee Taariikhiga ah ama "AWR ee Postgres": xal aad u xiiso badan, laakiin ma jiro taariikh pg_stat_activity iyo pg_locks.

kordhinta pgsentinel :
Β«Dhammaan macluumaadka la ururiyey waxa lagu kaydiyaa RAM oo keliya, iyo xaddiga xusuusta la isticmaalo waxaa lagu nidaamiyaa tirada diiwaannada kaydsan ee ugu dambeeya.

Goobta su'aalaha ayaa lagu daray - isla su'aal ka timid pg_stat_statements kordhinta (ku-rakici hore ayaa loo baahan yahay).Β«

Tani, dabcan, wax badan ayay caawin doontaa, laakiin waxa ugu dhibka badan ayaa ah qodobka koowaad. "Dhammaan macluumaadka la ururiyey waxa lagu kaydiyaa RAM kaliya ”, i.e. waxaa saameyn ku leh saldhigga la beegsanayo. Intaa waxaa dheer, ma jiraan taariikhda quful iyo tirakoobka miiska. Kuwaas. Xalku wuxuu guud ahaan ku hadlayaa mid aan dhammaystirnayn: "Weli ma jirto xirmo diyaarsan oo la rakibay Waxaa lagu talinayaa inaad soo dejiso ilaha oo aad adigu ururiso maktabadda. Marka hore waxaad u baahan tahay inaad ku rakibto xirmada "devel" ee serverkaaga oo aad dejiso dariiqa pg_config ee doorsoomiyaha PATH.".

Guud ahaan, waxaa jira buuq badan, iyo haddii ay dhacdo xog-ururin wax-soo-saar halis ah, waxaa laga yaabaa inaysan suurtagal ahayn in wax lagu sameeyo server-ka. Waxaan u baahanahay inaan la nimaadno wax noo gaar ah mar kale.

Digniin

Sababo la xiriira mugga oo aad u weyn iyo xilliga imtixaan la'aanta awgeed, maqaalku wuxuu inta badan ka mid yahay dabeecadda macluumaadka, halkii uu ahaan lahaa qoraallo iyo natiijooyin dhexdhexaad ah.
Wax badan oo faahfaahsan ayaa la diyaarin doonaa mar dambe, qaybo

Shuruudaha qabyada ah ee xalka

Waa lagama maarmaan in la horumariyo qalab kuu ogolaanaya inaad kaydiso:

pg_stat_activity aragtida taariikhda
Taariikhda qufulka fadhiga iyadoo la adeegsanayo muuqaalka pg_locks

Shardiga xalinta-Yaree saamaynta ay ku leedahay xogta xogta la beegsanayo.

Fikrad guud- Wakiilka xog ururinta laguma daah-furin kaydka bartilmaameedka, laakiin waxa la dhexgeliyaa kaydinta xogta sida adeeg habaysan. Haa, lumitaanka xogta qaarkood waa suurtagal, laakiin tani maaha mid muhiim u ah warbixinta, laakiin ma jirto wax saameyn ah oo ku saabsan xogta bartilmaameedka marka la eego xusuusta iyo booska diskka. Iyo kiiska isticmaalka barkada isku xirka, saameynta hababka isticmaaluhu waa mid aad u yar.

Heerarka fulinta

1.Miisaska adeegga

Nidaam gaar ah ayaa loo isticmaalaa in lagu kaydiyo miisaska, si aan loo adkeyn falanqaynta miisaska muhiimka ah ee la isticmaalo.

DROP SCHEMA IF EXISTS activity_hist ;
CREATE SCHEMA activity_hist AUTHORIZATION monitor ;

Muhiim: Qorshaha laguma abuurin kaydka bartilmaameedka, laakiin waxa lagu dhex abuuray kaydka la socodka.

pg_stat_activity aragtida taariikhda

Shaxda waxa loo isticmaalaa in lagu kaydiyo sawir-qaadista hadda ee pg_stat_activity view

waxqabadka_hist.history_pg_stat_firfircoon:

--ACTIVITY_HIST.HISTORY_PG_STAT_ACTIVITY
DROP TABLE IF EXISTS activity_hist.history_pg_stat_activity;
CREATE TABLE activity_hist.history_pg_stat_activity
(
  timepoint timestamp without time zone ,
  datid             oid  , 
  datname           name ,
  pid               integer,
  usesysid          oid    ,
  usename           name   ,
  application_name  text   ,
  client_addr       inet   ,
  client_hostname   text   ,
  client_port       integer,
  backend_start     timestamp with time zone ,
  xact_start        timestamp with time zone ,
  query_start       timestamp with time zone ,
  state_change      timestamp with time zone ,
  wait_event_type   text ,                     
  wait_event        text ,                   
  state             text ,                  
  backend_xid       xid  ,                 
  backend_xmin      xid  ,                
  query             text ,               
  backend_type      text ,  
  queryid           bigint
);

Si aad u dedejiso gelinta - ma jiro tusmooyin ama xaddidaadyo.

Si loo kaydiyo taariikhda lafteeda, miis qaybsan ayaa la isticmaalaa:

hawl_hist.archive_pg_stat_firfircooni:

DROP TABLE IF EXISTS activity_hist.archive_pg_stat_activity;
CREATE TABLE activity_hist.archive_pg_stat_activity
(
  timepoint timestamp without time zone ,
  datid             oid  , 
  datname           name ,
  pid               integer,
  usesysid          oid    ,
  usename           name   ,
  application_name  text   ,
  client_addr       inet   ,
  client_hostname   text   ,
  client_port       integer,
  backend_start     timestamp with time zone ,
  xact_start        timestamp with time zone ,
  query_start       timestamp with time zone ,
  state_change      timestamp with time zone ,
  wait_event_type   text ,                     
  wait_event        text ,                   
  state             text ,                  
  backend_xid       xid  ,                 
  backend_xmin      xid  ,                
  query             text ,               
  backend_type      text ,
  queryid           bigint
)
PARTITION BY RANGE (timepoint);

Maadaama kiiskan aysan jirin wax shuruud ah oo loogu talagalay xawaaraha gelinta, qaar ka mid ah tusmooyinka ayaa la sameeyay si loo dedejiyo abuurista warbixinnada.

Kulanka xannibaya taariikhda

Miis ayaa loo isticmaalaa in lagu kaydiyo sawir-qaadashada hadda ee qufulka fadhiga:

waxqabadka_hist.taariikhda quful:

--ACTIVITY_HIST.HISTORY_LOCKING
DROP TABLE IF EXISTS activity_hist.history_locking;
CREATE TABLE activity_hist.history_locking
(
	timepoint timestamp without time zone ,
	locktype text ,
	relation oid ,
	mode text ,
	tid xid ,
	vtid text ,
	pid integer ,
	blocking_pids integer[] ,
	granted boolean
);

Sidoo kale, si loo dedejiyo gelinta, ma jiraan tusmooyin ama xaddidaadyo.

Si loo kaydiyo taariikhda lafteeda, miis qaybsan ayaa la isticmaalaa:

dhaqdhaqaaqa_hist.archive_locking:

DROP TABLE IF EXISTS activity_hist.archive_locking;
CREATE TABLE activity_hist.archive_locking
(
	timepoint timestamp without time zone ,
	locktype text ,
	relation oid ,
	mode text ,
	tid xid ,
	vtid text ,
	pid integer ,
	blocking_pids integer[] ,
	granted boolean	
)
PARTITION BY RANGE (timepoint);

Maadaama kiiskan aysan jirin wax shuruud ah oo loogu talagalay xawaaraha gelinta, qaar ka mid ah tusmooyinka ayaa la sameeyay si loo dedejiyo abuurista warbixinnada.

2. Buuxinta taariikhda hadda jirta

Si toos ah loo ururiyo sawir-qaadista muuqaalka, qoraalka bash ayaa la adeegsadaa kaasoo socodsiiya shaqada plpgsql.

hel_howsha_hada_hadda.sh

#!/bin/bash
#########################################################
#get_current_activity.sh

ERROR_FILE='/home/demon/get_current_activity'$(date +%Y%m%d-)'T'$(date +%H)$(date +%M)$(date +%S)
host=$1
s_name=$2
s_pass=$3

psql  -A -t -q -v ON_ERROR_STOP=1 -c "SELECT activity_hist.get_current_activity( '$host' , '$s_name' , '$s_pass' )" >/dev/null 2>$ERROR_FILE

line_count=`cat $ERROR_FILE | wc -l`
if [[ $line_count != '0' ]];
then
    rm -f /home/demon/*.err >/dev/null 2>/dev/null
	cp $ERROR_FILE $ERROR_FILE'.err' >/dev/null 2>/dev/null  
fi
rm $ERROR_FILE >/dev/null 2>/dev/null
exit 0

plgsql Shaqada dblink waxa ay gashaa aragtiyaha ku jira kaydka bartilmaameedka oo waxa ay gelisaa safafka miisaska adeegga ee kaydka la socodka.

hel_hawlaha_current.sql

CREATE OR REPLACE FUNCTION activity_hist.get_current_activity( current_host text , current_s_name text , current_s_pass text ) RETURNS BOOLEAN AS $$
DECLARE 
  database_rec record;
  dblink_str text ;
BEGIN   

	EXECUTE 'SELECT dblink_connect(''LINK1'',''host='||current_host||' port=5432 dbname=postgres'||
	                                         ' user='||current_s_name||' password='||current_s_pass|| ' '')';



--------------------------------------------------------------------
--GET pg_stat_activity stats
	INSERT INTO activity_hist.history_pg_stat_activity
	(
		SELECT * FROM dblink('LINK1',
			'SELECT 
			now() , 
			datid             , 
			datname           ,
			pid               ,
			usesysid              ,
			usename              ,
			application_name     ,
			client_addr          ,
			client_hostname      ,
			client_port       ,
			backend_start         ,
			xact_start            ,
			query_start           ,
			state_change          ,
			wait_event_type    ,                     
			wait_event         ,                   
			state              ,                  
			backend_xid         ,                 
			backend_xmin        ,                
			query              ,               
			backend_type   			
		FROM pg_stat_activity
		') 
		AS t (
		    timepoint 		  timestamp without time zone ,			
			datid             oid  , 
			datname           name ,
			pid               integer,
			usesysid          oid    ,
			usename           name   ,
			application_name  text   ,
			client_addr       inet   ,
			client_hostname   text   ,
			client_port       integer,
			backend_start     timestamp with time zone ,
			xact_start        timestamp with time zone ,
			query_start       timestamp with time zone ,
			state_change      timestamp with time zone ,
			wait_event_type   text ,                     
			wait_event        text ,                   
			state             text ,                  
			backend_xid       xid  ,                 
			backend_xmin      xid  ,                
			query             text ,               
			backend_type      text 			
		)
	);

---------------------------------------	
--ACTIVITY_HIST.HISTORY_LOCKING	
	INSERT INTO activity_hist.history_locking
	(
		SELECT * FROM dblink('LINK1',
			'SELECT 
			now() , 
			lock.locktype,
			lock.relation,
			lock.mode,
			lock.transactionid as tid,
			lock.virtualtransaction as vtid,
			lock.pid,
			pg_blocking_pids(lock.pid), 
			lock.granted
			FROM 	pg_catalog.pg_locks lock LEFT JOIN pg_catalog.pg_database db ON db.oid = lock.database
			WHERE NOT lock.pid = pg_backend_pid()	
		') 
		AS t (
			timepoint timestamp without time zone ,
			locktype text ,
			relation oid , 
			mode text ,
			tid xid ,
			vtid text ,
			pid integer ,
			blocking_pids integer[] ,
			granted boolean
		)
	);
	PERFORM dblink_disconnect('LINK1');
	
	RETURN TRUE ;
END
$$ LANGUAGE plpgsql;

Si loo ururiyo sawirada sawirada, adeegga nidaamka iyo laba qoraal ayaa la isticmaalaa:

pg_current_activity.adeegga

# /etc/systemd/system/pg_current_activity.service
[Unit]
Description=Collect history of pg_stat_activity , pg_locks 
Wants=pg_current_activity.timer

[Service]
Type=forking
StartLimitIntervalSec=0
ExecStart=/home/postgres/pgutils/demon/get_current_activity.sh 10.124.70.40 postgres postgres

[Install]
WantedBy=multi-user.target

pg_current_activity.timer

# /etc/systemd/system/pg_current_activity.timer
[Unit]
Description=Run pg_current_activity.sh every 1 second
Requires=pg_current_activity.service

[Timer]
Unit=pg_current_activity.service
OnCalendar=*:*:0/1
AccuracySec=1

[Install]
WantedBy=timers.target

U qoondee xuquuqda qoraallada:
# chmod 755 pg_current_activity.timer
# chmod 755 pg_current_activity.adeeg

Aan bilowno adeega:
# nidaam-dib-u-cusbooneysiin
# systemctl bilow pg_current_activity.adeeg

Sidaa darteed, taariikhda aragtida waxaa lagu soo ururiyaa qaab sawir-qaade-labaad-labaad ah. Dabcan, haddii wax walba loo daayo sida ay yihiin, miisaska ayaa si dhakhso ah u kordhin doona xajmiga iyo wax badan ama ka yar oo wax soo saar leh ayaa noqon doona mid aan macquul ahayn.

Waa lagama maarmaan in la habeeyo kaydinta xogta.

3. Taariikhda kaydinta

Kaydinta, kaydka miisaska qaybsan* ayaa la isticmaalaa.

Qaybo cusub ayaa la abuuraa saacad kasta, halka xogtii hore laga saaro miisaska taariikhda *, markaa cabbirka miisaska taariikhda * wax badan isma beddelo xawaaraha gelintaduna ma hoos u dhaco muddo ka dib.

Abuuritaanka qaybo cusub waxaa sameeya plpgsql function function_hist.archive_current_activity. Algorithm-ka shaqadu waa mid aad u fudud (iyadoo la adeegsanayo tusaalaha qaybta shaxda_pg_stat_activity).

Abuur oo buuxi qayb cusub

EXECUTE format(
'CREATE TABLE ' || partition_name || 
' PARTITION OF activity_hist.archive_pg_stat_activity FOR VALUES FROM ( %L ) TO ( %L ) ' , 
to_char(date_trunc('year', partition_min_range ),'YYYY')||'-'||
to_char(date_trunc('month', partition_min_range ),'MM')||'-'||
to_char(date_trunc('day', partition_min_range ),'DD')||' '||
to_char(date_trunc('hour', partition_min_range ),'HH24')||':00', 
to_char(date_trunc('year', partition_max_range ),'YYYY')||'-'||
to_char(date_trunc('month', partition_max_range ),'MM')||'-'||
to_char(date_trunc('day', partition_max_range ),'DD')||' '||
to_char(date_trunc('hour', partition_max_range ),'HH24')||':00'
);

INSERT INTO activity_hist.archive_pg_stat_activity
(
	SELECT 	* 
	FROM 	activity_hist.history_pg_stat_activity
	WHERE 	timepoint BETWEEN partition_min_range AND partition_max_range 		
);

Abuuritaanka tusmooyinka

EXECUTE format	(
'CREATE INDEX '||index_name||
' ON '||partition_name||' ( wait_event_type , backend_type , timepoint )' 
);

EXECUTE format	('CREATE INDEX '||index_name||
' ON '||partition_name||' ( wait_event_type , backend_type , timepoint , queryid )' 
);

Kasaarida xogta hore shaxda history_pg_stat_activity

DELETE 
FROM 	activity_hist.history_pg_stat_activity
WHERE 	timepoint < partition_max_range;

Dabcan, waqti ka waqti, qaybaha hore waa la tirtiraa sida aan loo baahnayn.

Warbixinada aasaasiga ah

Dhab ahaantii, maxaa waxaas oo dhan loo sameeyay? Si aad u hesho warbixino si aan qarsoodi lahayn u xasuusiya Oracle's AWR.

Waa muhiim in lagu daro si loo helo warbixinnada, waxaad u baahan tahay inaad dhisto xiriir ka dhexeeya pg_stat_activity iyo pg_stat_statements views. Jadwalka waxaa lagu xiray iyadoo lagu darayo tiir 'queryid' shaxda 'history_pg_stat_activity', 'archive_pg_stat_activity' miisaska. Habka lagu daro qiimaha tiirka ayaa ka baxsan baaxadda maqaalkan waxaana lagu sifeeyay halkan - pg_stat_statements + pg_stat_activity + loq_query = pg_ash? .

Wadarta wakhtiga CPU ee su'aalaha

Codsi:

WITH hist AS
(
SELECT 
	aa.query ,aa.queryid ,			
	count(*) * interval '1 second' AS duration 
FROM 	activity_hist.archive_pg_stat_activity aa
WHERE timepoint BETWEEN pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND  pg_stat_history_end+(current_hour_diff * interval '1 hour')  AND backend_type = 'client backend' AND datname != 'postgres' AND	( aa.wait_event_type IS NULL  ) ANDaa.state = 'active'
GROUP BY aa.wait_event_type , aa.wait_event , aa.query ,aa.queryid		
UNION 
SELECT 
	ha.query ,ha.queryid,
	count(*) * interval '1 second' AS duration 
FROM 	activity_hist.history_pg_stat_activity_for_reports ha
WHERE timepoint BETWEEN pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND pg_stat_history_end+(current_hour_diff * interval '1 hour')  AND 	backend_type = 'client backend' AND datname != 'postgres' AND ( ha.wait_event_type IS NULL  )AND ha.state = 'active'
GROUP BY ha.wait_event_type , ha.wait_event , ha.query ,ha.queryid		
)
SELECT 	query , queryid , SUM( duration ) as duration 
FROM hist
GROUP BY  query , queryid 
ORDER BY 3 DESC

Tusaale:

-------------------------------------------------------------------
| TOTAL CPU TIME FOR QUERIES : 07:47:36
+----+----------------------------------------+--------------------
|   #|                                 queryid|            duration
+----+----------------------------------------+--------------------
|   1|                      389015618226997618|            04:28:58
|   2|                                        |            01:07:29
|   3|                     1237430309438971376|            00:59:38
|   4|                     4710212362688288619|            00:50:48
|   5|                       28942442626229688|            00:15:50
|   6|                     9150846928388977274|            00:04:46
|   7|                    -6572922443698419129|            00:00:06
|   8|                                        |            00:00:01
+----+----------------------------------------+--------------------

Wadarta wakhtiga sugidda su'aalaha

Codsi:

WITH hist AS
(
SELECT 
	aa.query ,aa.queryid ,			
	count(*) * interval '1 second' AS duration 
FROM 	activity_hist.archive_pg_stat_activity aa
WHERE timepoint BETWEEN pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND pg_stat_history_end+(current_hour_diff * interval '1 hour')  AND 
	backend_type = 'client backend' AND datname != 'postgres' AND
	( aa.wait_event_type IS NOT NULL  ) 
GROUP BY aa.wait_event_type , aa.wait_event , aa.query ,aa.queryid		
UNION 
SELECT 
	ha.query ,ha.queryid,
	count(*) * interval '1 second' AS duration 
FROM 	activity_hist.history_pg_stat_activity_for_reports ha
WHERE timepoint BETWEEN pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND pg_stat_history_end+(current_hour_diff * interval '1 hour')  AND 
	backend_type = 'client backend' AND datname != 'postgres' AND				
	( ha.wait_event_type IS NOT NULL  )
GROUP BY ha.wait_event_type , ha.wait_event , ha.query ,ha.queryid		
)
SELECT 	query , queryid , SUM( duration ) as duration 
FROM hist
GROUP BY  query , queryid 
ORDER BY 3 DESC

Tusaale:

-------------------------------------------------------------------
| TOTAL WAITINGS TIME FOR QUERIES : 21:55:04
+----+----------------------------------------+--------------------
|   #|                                 queryid|            duration
+----+----------------------------------------+--------------------
|   1|                      389015618226997618|            16:19:05
|   2|                                        |            03:47:04
|   3|                     8085340880788646241|            00:40:20
|   4|                     4710212362688288619|            00:13:35
|   5|                     9150846928388977274|            00:12:25
|   6|                       28942442626229688|            00:11:32
|   7|                     1237430309438971376|            00:09:45
|   8|                     2649515222348904837|            00:09:37
|   9|                                        |            00:03:45
|  10|                     3167065002719415275|            00:02:20
|  11|                     5731212217001535134|            00:02:13
|  12|                     8304755792398128062|            00:01:31
|  13|                     2649515222348904837|            00:00:59
|  14|                     2649515222348904837|            00:00:22
|  15|                                        |            00:00:12
|  16|                     3422818749220588372|            00:00:08
|  17|                    -5730801771815999400|            00:00:03
|  18|                    -1473395109729441239|            00:00:02
|  19|                     2404820632950544954|            00:00:02
|  20|                    -6572922443698419129|            00:00:02
|  21|                     2369289265278398647|            00:00:01
|  22|                      180077086776069052|            00:00:01
+----+----------------------------------------+--------------------

SUGAYSIGA SU'AALAHA

Codsiyada:

WITH hist AS
(
SELECT 
	aa.wait_event_type , aa.wait_event 
FROM 	activity_hist.archive_pg_stat_activity aa
WHERE timepoint BETWEEN pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND pg_stat_history_end+(current_hour_diff * interval '1 hour') AND 
	backend_type = 'client backend' AND datname != 'postgres' AND
	aa.wait_event IS NOT NULL 
GROUP BY aa.wait_event_type , aa.wait_event
UNION 
SELECT 
	ha.wait_event_type , ha.wait_event 
FROM 	activity_hist.history_pg_stat_activity_for_reports ha
WHERE timepoint BETWEEN pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND pg_stat_history_end+(current_hour_diff * interval '1 hour') AND 
	backend_type = 'client backend' AND datname != 'postgres' AND
	ha.wait_event IS NOT NULL 
GROUP BY ha.wait_event_type , ha.wait_event		
)
SELECT 	wait_event_type , wait_event 
FROM hist
GROUP BY wait_event_type , wait_event
ORDER BY 1 ASC,2 ASC

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

WITH hist AS
(
SELECT 
	aa.wait_event_type , aa.wait_event , aa.query ,aa.queryid ,			
	count(*) * interval '1 second' AS duration 
FROM 	activity_hist.archive_pg_stat_activity aa
WHERE timepoint BETWEEN pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND pg_stat_history_end+(current_hour_diff * interval '1 hour') AND 
	backend_type = 'client backend' AND datname != 'postgres' AND
	( aa.wait_event_type = waitings_stat_rec.wait_event_type AND aa.wait_event = waitings_stat_rec.wait_event )
GROUP BY aa.wait_event_type , aa.wait_event , aa.query ,aa.queryid		
UNION 
SELECT 
	ha.wait_event_type , ha.wait_event , ha.query ,ha.queryid,
	count(*) * interval '1 second' AS duration 
FROM 	activity_hist.history_pg_stat_activity_for_reports ha
WHERE timepoint BETWEEN pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND pg_stat_history_end+(current_hour_diff * interval '1 hour') AND 
	backend_type = 'client backend' AND datname != 'postgres' AND				
	( ha.wait_event_type = waitings_stat_rec.wait_event_type AND ha.wait_event = waitings_stat_rec.wait_event )
GROUP BY ha.wait_event_type , ha.wait_event , ha.query ,ha.queryid		
)
SELECT 	query , queryid , SUM( duration ) as duration 
FROM hist
GROUP BY  query , queryid 
ORDER BY 3 DESC

Tusaale:

------------------------------------------------
| WAITINGS FOR QUERIES
+-----------------------------------------------
|                      wait_event_type = Client|
|                       wait_event = ClientRead|
|                        Total time  = 00:46:56|
------------------------------------------------
|    #|             queryid|            duration
+-----+--------------------+--------------------
|    1| 8085340880788646241|            00:40:20
|    2|                    |            00:03:45
|    3| 5731212217001535134|            00:01:53
|    4|                    |            00:00:12
|    5| 9150846928388977274|            00:00:09
|    6| 3422818749220588372|            00:00:08
|    7| 1237430309438971376|            00:00:06
|    8|   28942442626229688|            00:00:05
|    9| 4710212362688288619|            00:00:05
|   10|-5730801771815999400|            00:00:03
|   11| 8304755792398128062|            00:00:02
|   12|-6572922443698419129|            00:00:02
|   13|-1473395109729441239|            00:00:02
|   14| 2404820632950544954|            00:00:02
|   15|  180077086776069052|            00:00:01
|   16| 2369289265278398647|            00:00:01

+-----------------------------------------------
|                          wait_event_type = IO|
|                      wait_event = BufFileRead|
|                        Total time  = 00:00:38|
------------------------------------------------
|    #|             queryid|            duration
+-----+--------------------+--------------------
|    1|   28942442626229688|            00:00:38

+-----------------------------------------------

TAARIIKHDA NIDAAMKA QURXOON

Codsi:

SELECT 
MIN(date_trunc('second',timepoint)) AS started , 
	count(*) * interval '1 second' as duration ,
	pid , blocking_pids , relation , mode , locktype 	 
FROM 
	activity_hist.archive_locking al 
WHERE 
	timepoint BETWEEN pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND pg_stat_history_end+(current_hour_diff * interval '1 hour') AND
	NOT granted AND 
	locktype = 'relation' 
GROUP BY pid , blocking_pids , relation , mode , locktype			
UNION
SELECT 
	MIN(date_trunc('second',timepoint)) AS started , 
	count(*) * interval '1 second' as duration ,
	pid , blocking_pids , relation , mode , locktype
FROM 
	activity_hist.history_locking 
WHERE 
	timepoint BETWEEN pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND pg_stat_history_end+(current_hour_diff * interval '1 hour') AND
	NOT granted AND 
	locktype = 'relation' 
GROUP BY pid , blocking_pids , relation , mode , locktype			
ORDER BY 1

Tusaale:

----- ----- --------------------------------- | TAARIIKHDA NIDAAMKA QARXOON +---------------------------- ------------ +------------------ | #| pid| bilaabay| muddada| xannibidda_pids| xiriirka| qaabka| nooca qufulka +----------------------------- ------------------------------ ------------- | 1| 26224| 2019-09-02 19:32:16| 00:01:45| {26211}| 16541| AccessShareLock| xiriirka | 2| 26390| 2019-09-02 19:34:03| 00:00:53| {26211}| 16541| AccessShareLock| xiriirka | 3| 26391| 2019-09-02 19:34:03| 00:00:53| {26211}| 16541| AccessShareLock| xiriirka | 4| 26531| 2019-09-02 19:35:27| 00:00:12| {26211}| 16541| AccessShareLock| xiriirka | 5| 27284| 2019-09-02 19:44:02| 00:00:19| {27276}| 16541| AccessShareLock| xiriirka | 6| 27283| 2019-09-02 19:44:02| 00:00:19| {27276}| 16541| AccessShareLock| xiriirka | 7| 27286| 2019-09-02 19:44:02| 00:00:19| {27276}| 16541| AccessShareLock| xiriirka | 8| 27423| 2019-09-02 19:45:24| 00:00:12| {27394}| 16541| AccessShareLock| xiriirka | 9| 27648| 2019-09-02 19:48:06| 00:00:20| {27647}| 16541| AccessShareLock| xiriirka | 10| 27650| 2019-09-02 19:48:06| 00:00:20| {27647}| 16541| AccessShareLock| xiriirka | 11| 27735| 2019-09-02 19:49:08| 00:00:06| {27650}| 16541| AccessExclusiveLock| xiriirka | 12| 28380| 2019-09-02 19:56:03| 00:01:56| {28379}| 16541| AccessShareLock| xiriirka | 13| 28379| 2019-09-02 19:56:03| 00:00:01| 28377| 16541| AccessExclusiveLock| xiriirka | | | | | 28376| |

HABKA HAB-DHAQAAQEEDKA HORJEEDKA TAARIIKHDA

Codsiyada:

SELECT 
blocking_pids 
FROM 
	activity_hist.archive_locking al 
WHERE 
	timepoint BETWEEN pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND pg_stat_history_end+(current_hour_diff * interval '1 hour') AND
	NOT granted AND 
	locktype = 'relation' 
GROUP BY blocking_pids 		
UNION
SELECT 
	blocking_pids 
FROM 
	activity_hist.history_locking 
WHERE 
	timepoint BETWEEN pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND pg_stat_history_end+(current_hour_diff * interval '1 hour') AND
	NOT granted AND 
	locktype = 'relation' 
GROUP BY blocking_pids 		
ORDER BY 1

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

SELECT 
	pid , usename , application_name , datname ,
	MIN(date_trunc('second',timepoint)) as started , 
	count(*) * interval '1 second' as duration ,		 
	state , 
	query
				FROM  	activity_hist.archive_pg_stat_activity
				WHERE 	pid= current_pid AND 
						timepoint BETWEEN pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND pg_stat_history_end+(current_hour_diff * interval '1 hour') 						 
				GROUP BY pid , usename , application_name , 
						datname , 
						state_change, 
						state , 
						query 
				UNION
				SELECT 
					pid , usename , application_name , datname ,
					MIN(date_trunc('second',timepoint)) as started , 
					count(*) * interval '1 second' as duration ,		 
					state , 
					query
				FROM  	activity_hist.history_pg_stat_activity_for_reports
				WHERE 	pid= current_pid AND 
						timepoint BETWEEN pg_stat_history_begin+(current_hour_diff * interval '1 hour') AND pg_stat_history_end+(current_hour_diff * interval '1 hour') 						 
				GROUP BY pid , usename , application_name , 
						datname , 
						state_change, 
						state , 
						query 
				ORDER BY 5 , 1

Tusaale:

----- ----- ----- --------------------hortagga habab-socodka TAARIIKHDA +---+------------ ------------- --------- -------------------- | #| pid| username| Codsiga_name| datname| bilaabay| muddada| gobolka| su'aal -------------------------- ------------ ------ ----------------- | 1| 26211| tuser| psql| tdb1| 2019-09-02 19:31:54| 00:00:04| shaqo la'aan| | 2| 26211| tuser| psql| tdb1| 2019-09-02 19:31:58| 00:00:06| shaqo la'aan ku jirta| bilow; | 3| 26211| tuser| psql| tdb1| 2019-09-02 19:32:16| 00:01:45| shaqo la'aan ku jirta| miiska quful wafer_data; | 4| 26211| tuser| psql| tdb1| 2019-09-02 19:35:54| 00:01:23| shaqo la'aan| galan; | 5| 26211| tuser| psql| tdb1| 2019-09-02 19:38:46| 00:00:02| shaqo la'aan ku jirta| bilow; | 6| 26211| tuser| psql| tdb1| 2019-09-02 19:38:54| 00:00:08| shaqo la'aan ku jirta| miiska quful wafer_data; | 7| 26211| tuser| psql| tdb1| 2019-09-02 19:39:08| 00:42:42| shaqo la'aan| galan; | 8| 26211| tuser| psql| tdb1| 2019-09-03 07:12:07| 00:00:52| firfircoon| dooro test_del ();

Horumarin.

Weydiimaha aasaasiga ah ee la muujiyey iyo warbixinnada ka soo baxay ayaa durba nolosha ka dhigaya mid aad u fudud marka la falanqeynayo dhacdooyinka waxqabadka.
Iyada oo ku saleysan su'aalaha aasaasiga ah, waxaad heli kartaa warbixin si aan caddayn u eeg Oracle's AWR.
Tusaalaha warbixinta oo kooban

------------------------------------------------ ---------------------------------- | WARBIXINTA LAGU DUWAN EE HABKA IYO SUGAYSIGA.

In la sii wado. Safka ku xiga waa abuurista taariikhda qufulka (pg_stat_locks), sharraxaad aad u faahfaahsan oo ku saabsan habka buuxinta miisaska.

Source: www.habr.com

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