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Kuedza kugadzira analogue yeASH yePostgreSQL

Kugadzirwa kwedambudziko

Kukwirisa mibvunzo yePostgreSQL, kugona kuongorora nhoroondo yechiitiko, kunyanya, kumirira, kukiya, uye nhamba dzetafura, inodiwa zvakanyanya.

Mikana iripo

Historical Workload Analysis Tool kana "AWR yePostgres": mhinduro inonakidza, asi hapana nhoroondo ye pg_stat_activity uye pg_locks.

pgsentinel extension :
Β«Ruzivo rwese rwakaunganidzirwa runochengetwa muRAM chete, uye huwandu hunodyiwa hwendangariro hunodzorwa nehuwandu hwekupedzisira akachengetwa marekodhi.

Munda wemubvunzo unowedzerwa - iwowo queryid kubva pg_stat_statements yekuwedzera (pre-installation inodiwa).Β«

Izvi, hongu, zvingabatsira zvakanyanya, asi chinhu chinonyanya kunetsa ipfungwa yekutanga. "Ruzivo rwese rwakaunganidzwa runochengetwa muRAM chete ”, i.e. pane kukanganisa pachigadziko chinotarirwa. Mukuwedzera, hapana nhoroondo yekiyi uye nhamba dzetafura. Avo. mhinduro yacho kazhinji kutaura haina kukwana: β€œHapasati pasati pave nepasuru yakagadzirwa. Zvinokurudzirwa kudhawunirodha masosi uye kuunganidza raibhurari iwe pachako. Iwe unofanirwa kutanga waisa iyo "devel" package yeserver yako uye isa nzira yekuenda pg_config mune PATH shanduko.".

Kazhinji, kune kukakavara kwakawanda, uye mune yakakomba dhatabhesi yekugadzira, zvingave zvisingakwanisi kuita chero chinhu neserver. Tinofanira kuuya nechimwe chinhu chedu zvakare.

Warning

Nekuda kwevhoriyamu yakakura uye nekuda kweiyo nguva yekuyedzwa isina kukwana, chinyorwa chakanyanya cheruzivo, seti seti yedzidziso uye yepakati mhedzisiro.
Mamwe mashoko ane udzame achagadzirirwa gare gare, muzvikamu

Draft zvinodikanwa zvemhinduro

Izvo zvinodikanwa kugadzira chishandiso chinokutendera iwe kuchengeta:

pg_stat_activity yekuona nhoroondo
Session yekuvhara nhoroondo uchishandisa iyo pg_locks maonero

Chinodiwa chemhinduro-kuderedza kukanganisa pane yakananga database.

General idea- mumiriri wekuunganidza data anotangwa kwete mudura rekutangwa, asi mudhatabhesi rekutarisa sebasa resystem. Hongu, kumwe kurasikirwa kwedata kunogoneka, asi izvi hazvisi zvakakosha pakubika, asi hapana chinokonzeresa pane inotangwa dhatabhesi maererano nekurangarira uye disk nzvimbo. Uye kana iri nyaya yekushandisa dziva rekubatanidza, kukanganisa kwevashandisi maitiro kushoma.

Matanho ekuita

1.Matafura ebasa

Imwe schema yakaparadzana inoshandiswa kuchengeta matafura, kuitira kuti isaomese kuongororwa kwematafura makuru anoshandiswa.

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

Zvakakosha: Iyo schema haina kugadzirwa mune inotarirwa dhatabhesi, asi mune yekutarisa dhatabhesi.

pg_stat_activity yekuona nhoroondo

Iyo pg_stat_activity tafura inoshandiswa kuchengetedza ikozvino snapshots yemaonero

activity_hist.history_pg_stat_activity :

--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
);

Kumhanyisa kuisa - hapana indexes kana zvirambidzo.

Kuchengeta iyo nhoroondo pachayo, tafura yakakamurwa inoshandiswa:

activity_hist.archive_pg_stat_activity :

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);

Sezvo mune iyi kesi pasina zvinodikanwa zvekuisa kumhanya, mamwe ma index akagadzirwa kuti akurumidze kugadzira mishumo.

Session inovharira nhoroondo

Tafura inoshandiswa kuchengetedza zvazvino snapshots zvemakiyi esesheni:

activity_hist.history_locking :

--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
);

Zvakare, kukurumidza kuisa, hapana indexes kana zvirambidzo.

Kuchengeta iyo nhoroondo pachayo, tafura yakakamurwa inoshandiswa:

activity_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);

Sezvo mune iyi kesi pasina zvinodikanwa zvekuisa kumhanya, mamwe ma index akagadzirwa kuti akurumidze kugadzira mishumo.

2.Kuzadza nhoroondo yazvino

Kuti utore zvakananga maonero ekuona, bash script inoshandiswa iyo inomhanyisa plpgsql basa.

get_current_activity.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 Iyo dblink basa inowana maonero mune inotarirwa dhatabhesi uye inoisa mitsara mumatafura esevhisi mudura rekutarisa.

get_current_activity.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;

Kuti utore snapshots yekuona, iyo systemd sevhisi uye zvinyorwa zviviri zvinoshandiswa:

pg_current_activity.service

# /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

Ipa kodzero kune zvinyorwa:
# chmod 755 pg_current_activity.timer
# chmod 755 pg_current_activity.service

Ngatitangei sevhisi:
# systemctl daemon-reload
# systemctl kutanga pg_current_activity.service

Nokudaro, nhoroondo yemaonero inounganidzwa nenzira yechipiri-ne-yechipiri snapshots. Ehe, kana zvese zvakasiiwa sezvazviri, matafura achakurumidza kuwedzera muhukuru uye basa rakawanda kana rishoma rinobereka richave risingagoneki.

Izvo zvinodikanwa kuronga data archiving.

3. Kuchengeta nhoroondo

Pakuchengeta, matafura akapatsanurwa archive* anoshandiswa.

Zvikamu zvitsva zvinogadzirwa awa yega yega, nepo data rekare richibviswa kubva munhoroondo * matafura, saka saizi yenhoroondo * matafura haachinje zvakanyanya uye kumhanya kwekuisa hakudzikisi nekufamba kwenguva.

Kugadzirwa kwezvikamu zvitsva kunoitwa ne plpgsql function activity_hist.archive_current_activity. Iyo algorithm yebasa iri nyore kwazvo (uchishandisa muenzaniso wechikamu cheiyo archive_pg_stat_activity tafura).

Gadzira uye uzadze chikamu chitsva

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 		
);

Kugadzira indexes

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 )' 
);

Kubvisa data rekare kubva panhoroondo_pg_stat_activity tafura

DELETE 
FROM 	activity_hist.history_pg_stat_activity
WHERE 	timepoint < partition_max_range;

Zvechokwadi, nguva nenguva, zvikamu zvekare zvinodzimwa sezvisingadiwi.

Mishumo yekutanga

Chaizvoizvo, nei zvose izvi zvichiitwa? Kuti uwane mishumo inoyeuchidza zvakanyanya yeOracle's AWR.

Zvakakosha kuwedzera kuti kuti ugamuchire mishumo, unofanirwa kuvaka hukama pakati pe pg_stat_activity uye pg_stat_statements maonero. Matafura akabatanidzwa nekuwedzera 'queryid' column kune 'history_pg_stat_activity', 'archive_pg_stat_activity'. Nzira yekuwedzera kukosha kwekoramu inodarika chiyero chechinyorwa ichi uye inotsanangurwa pano - pg_stat_statements + pg_stat_activity + loq_query = pg_ash? .

YESE CPU NGUVA YEMIBVUNZO

Chikumbiro :

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

Muenzaniso:

-------------------------------------------------------------------
| 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
+----+----------------------------------------+--------------------

NGUVA YAKAMIRIRA YEMIBVUNZO

Chikumbiro :

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

Muenzaniso:

-------------------------------------------------------------------
| 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
+----+----------------------------------------+--------------------

KUMIRIRA MIBVUNZO

Zvikumbiro:

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

Muenzaniso:

------------------------------------------------
| 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

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

AKAKAYIWA MAITIRO NHOROONDO

Chikumbiro:

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

Muenzaniso:

------------------------------------------------- ------------------------------------------------- --------------------------------- | AKAKHIWA NHOROONDO YEMAITIRO +-----+----------------------------------------- --------+-------------------+----- ---------------- +-------------------- | #| pid| akatanga| duration| blocking_pids| ukama| mode| locktype +--------------------------------------- +--------- -----------+--------------------------------------- --------------- | 1| 26224| 2019-09-02 19:32:16| 00:01:45| {26211}| 16541| AccessShareLock| ukama | 2| 26390| 2019-09-02 19:34:03| 00:00:53| {26211}| 16541| AccessShareLock| ukama | 3| 26391| 2019-09-02 19:34:03| 00:00:53| {26211}| 16541| AccessShareLock| ukama | 4| 26531| 2019-09-02 19:35:27| 00:00:12| {26211}| 16541| AccessShareLock| ukama | 5| 27284| 2019-09-02 19:44:02| 00:00:19| {27276}| 16541| AccessShareLock| ukama | 6| 27283| 2019-09-02 19:44:02| 00:00:19| {27276}| 16541| AccessShareLock| ukama | 7| 27286| 2019-09-02 19:44:02| 00:00:19| {27276}| 16541| AccessShareLock| ukama | 8| 27423| 2019-09-02 19:45:24| 00:00:12| {27394}| 16541| AccessShareLock| ukama | 9| 27648| 2019-09-02 19:48:06| 00:00:20| {27647}| 16541| AccessShareLock| ukama | 10| 27650| 2019-09-02 19:48:06| 00:00:20| {27647}| 16541| AccessShareLock| ukama | 11| 27735| 2019-09-02 19:49:08| 00:00:06| {27650}| 16541| AccessExclusiveLock| ukama | 12| 28380| 2019-09-02 19:56:03| 00:01:56| {28379}| 16541| AccessShareLock| ukama | 13| 28379| 2019-09-02 19:56:03| 00:00:01| 28377| 16541| AccessExclusiveLock| ukama | | | | | 28376| |

KUBVANYA MAITIRO NHOROONDO

Zvikumbiro:

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

Muenzaniso:

------------------------------------------------- ------------------------------------------------- ------------------------------------------------- ----------------------- KUBVIRIRA NZIRA YEMAITIRO +-----+------------------- -------------------------------------------------- ------+------------------------------------------ - -------+--------------------------------------- | #| pid| usename| application_name| datname| akatanga| duration| nyika| mubvunzo +----------+--------------------+-----+ --------- -------------------------------------------------- ------------------------------------------- ------- ------------------ | 1| 26211| tuser| psql| tdb1| 2019-09-02 19:31:54| 00:00:04| idle| | 2| 26211| tuser| psql| tdb1| 2019-09-02 19:31:58| 00:00:06| idle in transaction| start; | 3| 26211| tuser| psql| tdb1| 2019-09-02 19:32:16| 00:01:45| idle in transaction| kiya tafura wafer_data; | 4| 26211| tuser| psql| tdb1| 2019-09-02 19:35:54| 00:01:23| idle| commit; | 5| 26211| tuser| psql| tdb1| 2019-09-02 19:38:46| 00:00:02| idle in transaction| start; | 6| 26211| tuser| psql| tdb1| 2019-09-02 19:38:54| 00:00:08| idle in transaction| kiya tafura wafer_data; | 7| 26211| tuser| psql| tdb1| 2019-09-02 19:39:08| 00:42:42| idle| commit; | 8| 26211| tuser| psql| tdb1| 2019-09-03 07:12:07| 00:00:52| active| sarudza test_del();

Development.

Mivhunzo yakakosha inoratidzwa uye mishumo inobuda inotoita kuti hupenyu huve nyore kana uchiongorora zviitiko zvekuita.
Zvichienderana nemibvunzo yakakosha, unogona kuwana chirevo chakafanana neOracle's AWR.
Muchidimbu mushumo muenzaniso

+------------------------------------------------ ----------------------------------- | CONSOLIDATED REPORT YEBASA NEKUMIRIRA.

Zvichaenderera mberi. Inotevera mumutsetse ndiko kusikwa kwenhoroondo yekukiya (pg_stat_locks), tsananguro yakadzama yemaitiro ekuzadza matafura.

Source: www.habr.com

Voeg