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pg_healthcheck.report
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############################### PostgreSQL 数据库巡检报告 #####################################
一 数据库基本信息
内核版本：2.6.32-220.el6.i686
数据库版本：PostgreSQL 9.3.0
数据库编译配置信息:
BINDIR = /opt/pgsql9.3.0/bin
DOCDIR = /opt/pgsql9.3.0/share/doc
HTMLDIR = /opt/pgsql9.3.0/share/doc
INCLUDEDIR = /opt/pgsql9.3.0/include
PKGINCLUDEDIR = /opt/pgsql9.3.0/include
INCLUDEDIR-SERVER = /opt/pgsql9.3.0/include/server
LIBDIR = /opt/pgsql9.3.0/lib
PKGLIBDIR = /opt/pgsql9.3.0/lib
LOCALEDIR = /opt/pgsql9.3.0/share/locale
MANDIR = /opt/pgsql9.3.0/share/man
SHAREDIR = /opt/pgsql9.3.0/share
SYSCONFDIR = /opt/pgsql9.3.0/etc
PGXS = /opt/pgsql9.3.0/lib/pgxs/src/makefiles/pgxs.mk
CONFIGURE = '--prefix=/opt/pgsql9.3.0' '--with-pgport=1925' '--with-wal-blocksize=16' '--with-perl' '--with-python' '--with-openssl' '--with-pam' '--with-ldap' '--with-libxml' '--with-libxslt' '--enable-thread-safety'
CC = gcc
CPPFLAGS = -D_GNU_SOURCE -I/usr/include/libxml2
CFLAGS = -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv
CFLAGS_SL = -fpic
LDFLAGS = -L../../../src/common -Wl,--as-needed -Wl,-rpath,'/opt/pgsql9.3.0/lib',--enable-new-dtags
LDFLAGS_EX =
LDFLAGS_SL =
LIBS = -lpgport -lpgcommon -lxslt -lxml2 -lpam -lssl -lcrypto -lz -lreadline -lcrypt -ldl -lm
VERSION = PostgreSQL 9.3.0
二 数据库配置
--2.1 postgresql.conf
md5值:981fdf76afcc12d5758c24cf197b72ff /database/pg93/pg_root/postgresql.conf
非默认值:
listen_addresses = '*' # what IP address(es) to listen on;
port = 1925 # (change requires restart)
max_connections = 500 # (change requires restart)
superuser_reserved_connections = 3 # (change requires restart)
unix_socket_directories = '/tmp' # comma-separated list of directories
shared_buffers = 128MB # min 128kB
work_mem = 1MB # min 64kB
maintenance_work_mem = 128MB # min 1MB
bgwriter_delay = 10ms # 10-10000ms between rounds
wal_level = hot_standby # minimal, archive, or hot_standby
fsync = on # turns forced synchronization on or off
synchronous_commit = off # synchronization level;
checkpoint_segments = 16 # in logfile segments, min 1, 16MB each
checkpoint_timeout = 30min # range 30s-1h
checkpoint_completion_target = 0.5 # checkpoint target duration, 0.0 - 1.0
archive_mode = on # allows archiving to be done
archive_command = '/bin/date' # command to use to archive a logfile segment
archive_timeout = 0 # force a logfile segment switch after this
max_wal_senders = 8 # max number of walsender processes
wal_keep_segments = 32 # in logfile segments, 16MB each; 0 disables
hot_standby = on # "on" allows queries during recovery
log_destination = 'csvlog' # Valid values are combinations of
logging_collector = on # Enable capturing of stderr and csvlog
log_directory = 'pg_log' # directory where log files are written,
log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log' # log file name pattern,
log_file_mode = 0600 # creation mode for log files,
log_truncate_on_rotation = off # If on, an existing log file with the
log_rotation_age = 1d # Automatic rotation of logfiles will
log_rotation_size = 10MB # Automatic rotation of logfiles will
log_min_duration_statement = 100 # -1 is disabled, 0 logs all statements
log_checkpoints = on
log_connections = on
log_disconnections = on
log_timezone = 'PRC'
autovacuum = on # Enable autovacuum subprocess? 'on'
log_autovacuum_min_duration = -1 # -1 disables, 0 logs all actions and
autovacuum_max_workers = 3 # max number of autovacuum subprocesses
datestyle = 'iso, mdy'
timezone = 'PRC'
lc_messages = 'C' # locale for system error message
lc_monetary = 'C' # locale for monetary formatting
lc_numeric = 'C' # locale for number formatting
lc_time = 'C' # locale for time formatting
default_text_search_config = 'pg_catalog.english'
shared_preload_libraries = 'pg_stat_statements'
pg_stat_statements.max = 10000
pg_stat_statements.track = all
--2.2 pg_hba.conf
md5值:76261b92d1df1f7f09b50ed63bdaa59d /database/pg93/pg_root/pg_hba.conf
非默认值:
local all all trust
host all all 127.0.0.1/32 trust
host all all ::1/128 trust
host all all 0.0.0.0/0 md5
--2.3 recovery.conf
WARNING: recovery.conf/recovery.done 恢复配置文件不存在。
三 最近一个月 csvlog 日志中的错误分类和次数(如果日志量大，这步执行时间会较长。)
203 ERROR 42601
73 FATAL 3D000
59 WARNING 01000
19 ERROR 42703
14 ERROR 42704
13 ERROR 42883
9 ERROR 42P16
9 ERROR 42P07
9 ERROR 42501
8 ERROR 42P01
8 ERROR 23505
6 FATAL 28P01
5 ERROR 58P01
4 FATAL 57P01
4 ERROR 42P02
4 ERROR 22023
3 ERROR 57014
3 ERROR 25P02
2 FATAL 55000
2 ERROR 55006
2 ERROR 42P04
2 ERROR 42809
2 ERROR 25001
2 ERROR 22P02
2 ERROR 2201B
1 FATAL 28000
1 ERROR 55000
1 ERROR 42710
四 定时任务
五 数据库对像信息
--5.1 表空间信息
List of tablespaces
Name | Owner | Location
---------------+----------+-------------------------------------
pg_default | postgres |
pg_global | postgres |
tbs_francs | postgres | /database/pg93/pg_tbs/tbs_francs
tbs_source_db | postgres | /database/pg93/pg_tbs/tbs_source_db
(4 rows)
--5.2 数据库信息
datname | rolname | pg_encoding_to_char | datcollate | datctype | pg_size_pretty
-----------+----------+---------------------+------------+----------+----------------
francs | postgres | UTF8 | C | C | 18 MB
francs1 | postgres | UTF8 | C | C | 18 MB
source_db | postgres | UTF8 | C | C | 12 MB
skytf | postgres | UTF8 | C | C | 6225 kB
db1 | postgres | UTF8 | C | C | 6209 kB
db2 | postgres | UTF8 | C | C | 6209 kB
db3 | postgres | SQL_ASCII | C | C | 6209 kB
(7 rows)
--5.3 用户/角色信息
List of roles
Role name | Attributes | Member of
-------------+------------------------------------------------+-----------
dwetl | No inheritance +| {}
| 10 connections +|
| Password valid until infinity |
francs | No inheritance | {}
postgres | Superuser, Create role, Create DB, Replication | {}
repuser | Replication +| {}
| 2 connections |
select_only | No inheritance | {}
source_db | No inheritance | {}
六 自上次巡检以来的TOP 10 SQL
--6.1 CPU耗时TOP 10
SQL:select t1.datname, t2.query, t2.calls, t2.total_time, t2.total_time/t2.calls 单次调用cpu耗时 from pg_database t1, pg_stat_statements t2 where t1.oid=t2.dbid order by t2.total_time desc limit 10;
datname | francs
query | select t2.schemaname,t2.relname,t2.indexrelname,t2.idx_scan,t2.idx_tup_read,t2.idx_tup_fetch,pg_relation_size(indexrelid) from pg_stat_all_tables t1,pg_stat_all_indexes t2 where t1.relid=t2.relid and t2.idx_scan<? and t2.schemaname not in (?,?) and indexrelid not in (select conindid from pg_constraint where contype in (?,?)) and pg_relation_size(indexrelid)>? order by pg_relation_size(indexrelid) desc;
calls | 61
total_time | 3159.786
单次调用cpu耗时 | 51.7997704918033
datname | francs1
query | select t2.schemaname,t2.relname,t2.indexrelname,t2.idx_scan,t2.idx_tup_read,t2.idx_tup_fetch,pg_relation_size(indexrelid) from pg_stat_all_tables t1,pg_stat_all_indexes t2 where t1.relid=t2.relid and t2.idx_scan<? and t2.schemaname not in (?,?) and indexrelid not in (select conindid from pg_constraint where contype in (?,?)) and pg_relation_size(indexrelid)>? order by pg_relation_size(indexrelid) desc;
calls | 61
total_time | 3093.702
单次调用cpu耗时 | 50.7164262295082
datname | source_db
query | select t2.schemaname,t2.relname,t2.indexrelname,t2.idx_scan,t2.idx_tup_read,t2.idx_tup_fetch,pg_relation_size(indexrelid) from pg_stat_all_tables t1,pg_stat_all_indexes t2 where t1.relid=t2.relid and t2.idx_scan<? and t2.schemaname not in (?,?) and indexrelid not in (select conindid from pg_constraint where contype in (?,?)) and pg_relation_size(indexrelid)>? order by pg_relation_size(indexrelid) desc;
calls | 61
total_time | 3025.948
单次调用cpu耗时 | 49.6057049180328
datname | db1
query | select t2.schemaname,t2.relname,t2.indexrelname,t2.idx_scan,t2.idx_tup_read,t2.idx_tup_fetch,pg_relation_size(indexrelid) from pg_stat_all_tables t1,pg_stat_all_indexes t2 where t1.relid=t2.relid and t2.idx_scan<? and t2.schemaname not in (?,?) and indexrelid not in (select conindid from pg_constraint where contype in (?,?)) and pg_relation_size(indexrelid)>? order by pg_relation_size(indexrelid) desc;
calls | 61
total_time | 3025.437
单次调用cpu耗时 | 49.5973278688525
datname | skytf
query | select t2.schemaname,t2.relname,t2.indexrelname,t2.idx_scan,t2.idx_tup_read,t2.idx_tup_fetch,pg_relation_size(indexrelid) from pg_stat_all_tables t1,pg_stat_all_indexes t2 where t1.relid=t2.relid and t2.idx_scan<? and t2.schemaname not in (?,?) and indexrelid not in (select conindid from pg_constraint where contype in (?,?)) and pg_relation_size(indexrelid)>? order by pg_relation_size(indexrelid) desc;
calls | 61
total_time | 3016.387
单次调用cpu耗时 | 49.4489672131147
datname | db2
query | select t2.schemaname,t2.relname,t2.indexrelname,t2.idx_scan,t2.idx_tup_read,t2.idx_tup_fetch,pg_relation_size(indexrelid) from pg_stat_all_tables t1,pg_stat_all_indexes t2 where t1.relid=t2.relid and t2.idx_scan<? and t2.schemaname not in (?,?) and indexrelid not in (select conindid from pg_constraint where contype in (?,?)) and pg_relation_size(indexrelid)>? order by pg_relation_size(indexrelid) desc;
calls | 61
total_time | 2941.115
单次调用cpu耗时 | 48.215
datname | db3
query | select t2.schemaname,t2.relname,t2.indexrelname,t2.idx_scan,t2.idx_tup_read,t2.idx_tup_fetch,pg_relation_size(indexrelid) from pg_stat_all_tables t1,pg_stat_all_indexes t2 where t1.relid=t2.relid and t2.idx_scan<? and t2.schemaname not in (?,?) and indexrelid not in (select conindid from pg_constraint where contype in (?,?)) and pg_relation_size(indexrelid)>? order by pg_relation_size(indexrelid) desc;
calls | 61
total_time | 2864.371
单次调用cpu耗时 | 46.9569016393443
datname | francs
query | select * from
| (
| SELECT
| current_database() AS db, schemaname, tablename, reltuples::bigint AS tups, relpages::bigint AS pages, otta,
| ROUND(CASE WHEN otta=? OR sml.relpages=? OR sml.relpages=otta THEN ? ELSE sml.relpages/otta::numeric END,?) AS tbloat,
| CASE WHEN relpages < otta THEN ? ELSE relpages::bigint - otta END AS wastedpages,
| CASE WHEN relpages < otta THEN ? ELSE bs*(sml.relpages-otta)::bigint END AS wastedbytes,
| CASE WHEN relpages < otta THEN ?::text ELSE (bs*(relpages-otta))::bigint || ? END AS wastedsize,
| iname, ituples::bigint AS itups, ipages::bigint AS ipages, iotta,
| ROUND(CASE WHEN iotta=? OR ipages=? OR ipages=iotta THEN ? ELSE ipages/iotta::numeric END,?) AS ibloat,
| CASE WHEN ipages < iotta THEN ? ELSE ipages::bigint - iotta END AS wastedipages,
| CASE WHEN ipages < iotta THEN ? ELSE bs*(ipages-iotta) END AS wastedibytes,
| CASE WHEN ipages < iotta THEN ? ELSE (bs*(ipages-iotta))::bigint || ? END AS wastedisize,
| CASE WHEN relpages < otta THEN
| CASE WHEN ipages < iotta THEN
calls | 61
total_time | 1463.117
单次调用cpu耗时 | 23.9855245901639
datname | francs1
query | select * from
| (
| SELECT
| current_database() AS db, schemaname, tablename, reltuples::bigint AS tups, relpages::bigint AS pages, otta,
| ROUND(CASE WHEN otta=? OR sml.relpages=? OR sml.relpages=otta THEN ? ELSE sml.relpages/otta::numeric END,?) AS tbloat,
| CASE WHEN relpages < otta THEN ? ELSE relpages::bigint - otta END AS wastedpages,
| CASE WHEN relpages < otta THEN ? ELSE bs*(sml.relpages-otta)::bigint END AS wastedbytes,
| CASE WHEN relpages < otta THEN ?::text ELSE (bs*(relpages-otta))::bigint || ? END AS wastedsize,
| iname, ituples::bigint AS itups, ipages::bigint AS ipages, iotta,
| ROUND(CASE WHEN iotta=? OR ipages=? OR ipages=iotta THEN ? ELSE ipages/iotta::numeric END,?) AS ibloat,
| CASE WHEN ipages < iotta THEN ? ELSE ipages::bigint - iotta END AS wastedipages,
| CASE WHEN ipages < iotta THEN ? ELSE bs*(ipages-iotta) END AS wastedibytes,
| CASE WHEN ipages < iotta THEN ? ELSE (bs*(ipages-iotta))::bigint || ? END AS wastedisize,
| CASE WHEN relpages < otta THEN
| CASE WHEN ipages < iotta THEN
calls | 61
total_time | 1407.319
单次调用cpu耗时 | 23.0708032786885
datname | db1
query | select * from
| (
| SELECT
| current_database() AS db, schemaname, tablename, reltuples::bigint AS tups, relpages::bigint AS pages, otta,
| ROUND(CASE WHEN otta=? OR sml.relpages=? OR sml.relpages=otta THEN ? ELSE sml.relpages/otta::numeric END,?) AS tbloat,
| CASE WHEN relpages < otta THEN ? ELSE relpages::bigint - otta END AS wastedpages,
| CASE WHEN relpages < otta THEN ? ELSE bs*(sml.relpages-otta)::bigint END AS wastedbytes,
| CASE WHEN relpages < otta THEN ?::text ELSE (bs*(relpages-otta))::bigint || ? END AS wastedsize,
| iname, ituples::bigint AS itups, ipages::bigint AS ipages, iotta,
| ROUND(CASE WHEN iotta=? OR ipages=? OR ipages=iotta THEN ? ELSE ipages/iotta::numeric END,?) AS ibloat,
| CASE WHEN ipages < iotta THEN ? ELSE ipages::bigint - iotta END AS wastedipages,
| CASE WHEN ipages < iotta THEN ? ELSE bs*(ipages-iotta) END AS wastedibytes,
| CASE WHEN ipages < iotta THEN ? ELSE (bs*(ipages-iotta))::bigint || ? END AS wastedisize,
| CASE WHEN relpages < otta THEN
| CASE WHEN ipages < iotta THEN
calls | 61
total_time | 1209.366
单次调用cpu耗时 | 19.8256721311475
--6.2 调用次数TOP10
SQL:select t1.datname, t2.query, t2.calls, t2.total_time, t2.total_time/t2.calls 单次调用cpu耗时 from pg_database t1, pg_stat_statements t2 where t1.oid=t2.dbid order by t2.calls desc limit 10;
datname | francs
query | select pg_catalog.substring($1, pg_catalog.similar_escape($2, $3))
calls | 36966
total_time | 136.99599999999
单次调用cpu耗时 | 0.00370600010820727
datname | francs1
query | select pg_catalog.substring($1, pg_catalog.similar_escape($2, $3))
calls | 36539
total_time | 135.537999999993
单次调用cpu耗时 | 0.00370940638769514
datname | source_db
query | select pg_catalog.substring($1, pg_catalog.similar_escape($2, $3))
calls | 30378
total_time | 112.532000000011
单次调用cpu耗时 | 0.0037043913358355
datname | skytf
query | select pg_catalog.substring($1, pg_catalog.similar_escape($2, $3))
calls | 30256
total_time | 112.686000000011
单次调用cpu耗时 | 0.00372441829719763
datname | db3
query | select pg_catalog.substring($1, pg_catalog.similar_escape($2, $3))
calls | 30134
total_time | 110.657000000011
单次调用cpu耗时 | 0.00367216433264788
datname | db2
query | select pg_catalog.substring($1, pg_catalog.similar_escape($2, $3))
calls | 30134
total_time | 112.542000000012
单次调用cpu耗时 | 0.00373471825844602
datname | db1
query | select pg_catalog.substring($1, pg_catalog.similar_escape($2, $3))
calls | 30134
total_time | 121.051000000014
单次调用cpu耗时 | 0.00401709032986044
datname | postgres
query | select datname from pg_database where datname not in (?,?,?) order by 1;
calls | 390
total_time | 32.231
单次调用cpu耗时 | 0.0826435897435898
datname | postgres
query | select version();
calls | 85
total_time | 3.616
单次调用cpu耗时 | 0.0425411764705882
datname | postgres
query | select ? where exists (select extname from pg_extension where extname=?);
calls | 83
total_time | 3.684
单次调用cpu耗时 | 0.0443855421686747
--6.3 单次耗时TOP 10
SQL: select t1.datname, t2.query, t2.calls, t2.total_time, t2.total_time/t2.calls 单次调用cpu耗时 from pg_database t1, pg_stat_statements t2 where t1.oid=t2.dbid order by t2.total_time/t2.calls desc limit 10;
datname | francs
query | select t2.schemaname,t2.relname,t2.indexrelname,t2.idx_scan,t2.idx_tup_read,t2.idx_tup_fetch,pg_relation_size(indexrelid) from pg_stat_all_tables t1,pg_stat_all_indexes t2 where t1.relid=t2.relid and t2.idx_scan<? and t2.schemaname not in (?,?) and indexrelid not in (select conindid from pg_constraint where contype in (?,?)) and pg_relation_size(indexrelid)>? order by pg_relation_size(indexrelid) desc;
calls | 61
total_time | 3159.786
单次调用cpu耗时 | 51.7997704918033
datname | francs1
query | select t2.schemaname,t2.relname,t2.indexrelname,t2.idx_scan,t2.idx_tup_read,t2.idx_tup_fetch,pg_relation_size(indexrelid) from pg_stat_all_tables t1,pg_stat_all_indexes t2 where t1.relid=t2.relid and t2.idx_scan<? and t2.schemaname not in (?,?) and indexrelid not in (select conindid from pg_constraint where contype in (?,?)) and pg_relation_size(indexrelid)>? order by pg_relation_size(indexrelid) desc;
calls | 61
total_time | 3093.702
单次调用cpu耗时 | 50.7164262295082
datname | source_db
query | select t2.schemaname,t2.relname,t2.indexrelname,t2.idx_scan,t2.idx_tup_read,t2.idx_tup_fetch,pg_relation_size(indexrelid) from pg_stat_all_tables t1,pg_stat_all_indexes t2 where t1.relid=t2.relid and t2.idx_scan<? and t2.schemaname not in (?,?) and indexrelid not in (select conindid from pg_constraint where contype in (?,?)) and pg_relation_size(indexrelid)>? order by pg_relation_size(indexrelid) desc;
calls | 61
total_time | 3025.948
单次调用cpu耗时 | 49.6057049180328
datname | db1
query | select t2.schemaname,t2.relname,t2.indexrelname,t2.idx_scan,t2.idx_tup_read,t2.idx_tup_fetch,pg_relation_size(indexrelid) from pg_stat_all_tables t1,pg_stat_all_indexes t2 where t1.relid=t2.relid and t2.idx_scan<? and t2.schemaname not in (?,?) and indexrelid not in (select conindid from pg_constraint where contype in (?,?)) and pg_relation_size(indexrelid)>? order by pg_relation_size(indexrelid) desc;
calls | 61
total_time | 3025.437
单次调用cpu耗时 | 49.5973278688525
datname | skytf
query | select t2.schemaname,t2.relname,t2.indexrelname,t2.idx_scan,t2.idx_tup_read,t2.idx_tup_fetch,pg_relation_size(indexrelid) from pg_stat_all_tables t1,pg_stat_all_indexes t2 where t1.relid=t2.relid and t2.idx_scan<? and t2.schemaname not in (?,?) and indexrelid not in (select conindid from pg_constraint where contype in (?,?)) and pg_relation_size(indexrelid)>? order by pg_relation_size(indexrelid) desc;
calls | 61
total_time | 3016.387
单次调用cpu耗时 | 49.4489672131147
datname | db2
query | select t2.schemaname,t2.relname,t2.indexrelname,t2.idx_scan,t2.idx_tup_read,t2.idx_tup_fetch,pg_relation_size(indexrelid) from pg_stat_all_tables t1,pg_stat_all_indexes t2 where t1.relid=t2.relid and t2.idx_scan<? and t2.schemaname not in (?,?) and indexrelid not in (select conindid from pg_constraint where contype in (?,?)) and pg_relation_size(indexrelid)>? order by pg_relation_size(indexrelid) desc;
calls | 61
total_time | 2941.115
单次调用cpu耗时 | 48.215
datname | db3
query | select t2.schemaname,t2.relname,t2.indexrelname,t2.idx_scan,t2.idx_tup_read,t2.idx_tup_fetch,pg_relation_size(indexrelid) from pg_stat_all_tables t1,pg_stat_all_indexes t2 where t1.relid=t2.relid and t2.idx_scan<? and t2.schemaname not in (?,?) and indexrelid not in (select conindid from pg_constraint where contype in (?,?)) and pg_relation_size(indexrelid)>? order by pg_relation_size(indexrelid) desc;
calls | 61
total_time | 2864.371
单次调用cpu耗时 | 46.9569016393443
datname | postgres
query | select datname,datdba,encoding,datcollate,datctype,pg_size_pretty(pg_database_size(datname)) "size GB"from pg_database
| where datname not in (?,?,?) order by pg_database_size(datname) desc;
calls | 3
total_time | 83.049
单次调用cpu耗时 | 27.683
datname | postgres
query | select datname,datdba,encoding,datcollate,datctype,pg_size_pretty(pg_database_size(datname)) "size GB"from pg_database
| order by pg_database_size(datname) desc;
calls | 1
total_time | 24.256
单次调用cpu耗时 | 24.256
datname | francs
query | select * from
| (
| SELECT
| current_database() AS db, schemaname, tablename, reltuples::bigint AS tups, relpages::bigint AS pages, otta,
| ROUND(CASE WHEN otta=? OR sml.relpages=? OR sml.relpages=otta THEN ? ELSE sml.relpages/otta::numeric END,?) AS tbloat,
| CASE WHEN relpages < otta THEN ? ELSE relpages::bigint - otta END AS wastedpages,
| CASE WHEN relpages < otta THEN ? ELSE bs*(sml.relpages-otta)::bigint END AS wastedbytes,
| CASE WHEN relpages < otta THEN ?::text ELSE (bs*(relpages-otta))::bigint || ? END AS wastedsize,
| iname, ituples::bigint AS itups, ipages::bigint AS ipages, iotta,
| ROUND(CASE WHEN iotta=? OR ipages=? OR ipages=iotta THEN ? ELSE ipages/iotta::numeric END,?) AS ibloat,
| CASE WHEN ipages < iotta THEN ? ELSE ipages::bigint - iotta END AS wastedipages,
| CASE WHEN ipages < iotta THEN ? ELSE bs*(ipages-iotta) END AS wastedibytes,
| CASE WHEN ipages < iotta THEN ? ELSE (bs*(ipages-iotta))::bigint || ? END AS wastedisize,
| CASE WHEN relpages < otta THEN
| CASE WHEN ipages < iotta THEN
calls | 61
total_time | 1463.117
单次调用cpu耗时 | 23.9855245901639
七 数据库运行状态巡检
--7.1 连接数
可用连接数 | 已使用连接数 | 剩余连接数
------------+--------------+------------
500 | 1 | 499
(1 row)
--7.2 年龄大于10亿的数据库
datname | age
---------+-----
(0 rows)
--7.3 多库检查
########### sql1: 查询大于10GB的表以及年龄 ###############
sql1: select relname,age(relfrozenxid),pg_relation_size(oid)/1024/1024/1024.0 表大小GB from pg_class where relkind='r' and pg_relation_size(oid)/1024/1024/1024.0 > 10 order by 3 desc;
##### 数据库 db1
relname | age | 表大小gb
---------+-----+----------
(0 rows)
##### 数据库 db2
relname | age | 表大小gb
---------+-----+----------
(0 rows)
##### 数据库 db3
relname | age | 表大小gb
---------+-----+-------------
(0 rows)
##### 数据库 francs
relname | age | 表大小gb
---------+-----+----------
(0 rows)
##### 数据库 francs1
relname | age | 表大小gb
---------+-----+----------
(0 rows)
##### 数据库 skytf
relname | age | 表大小gb
---------+-----+----------
(0 rows)
##### 数据库 source_db
relname | age | 表大小gb
---------+-----+----------
(0 rows)
########### sql2: 索引数超过4的表 ###############
sql2: select t2.nspname, t1.relname, t3.idx_cnt from pg_class t1, pg_namespace t2, (select indrelid,count(*) idx_cnt from pg_index group by 1 having count(*)>4) t3 where t1.oid=t3.indrelid and t1.relnamespace=t2.oid order by t3.idx_cnt desc;
##### 数据库 db1
nspname | relname | idx_cnt
---------+---------+---------
(0 rows)
##### 数据库 db2
nspname | relname | idx_cnt
---------+---------+---------
(0 rows)
##### 数据库 db3
nspname | relname | idx_cnt
---------+---------+---------
(0 rows)
##### 数据库 francs
nspname | relname | idx_cnt
---------+---------+---------
(0 rows)
##### 数据库 francs1
nspname | relname | idx_cnt
---------+---------+---------
(0 rows)
##### 数据库 skytf
nspname | relname | idx_cnt
---------+---------+---------
(0 rows)
##### 数据库 source_db
nspname | relname | idx_cnt
---------+---------+---------
(0 rows)
########### sql3: 上次巡检以来未使用或使用较少的索引 ###############
sql3: select t2.schemaname,t2.relname,t2.indexrelname,t2.idx_scan,t2.idx_tup_read,t2.idx_tup_fetch,pg_relation_size(indexrelid) from pg_stat_all_tables t1,pg_stat_all_indexes t2 where t1.relid=t2.relid and t2.idx_scan<1000 and t2.schemaname not in ('pg_toast','pg_catalog') and indexrelid not in (select conindid from pg_constraint where contype in ('p','u')) and pg_relation_size(indexrelid)>6553600 order by pg_relation_size(indexrelid) desc;
##### 数据库 db1
schemaname | relname | indexrelname | idx_scan | idx_tup_read | idx_tup_fetch | pg_relation_size
------------+---------+--------------+----------+--------------+---------------+------------------
(0 rows)
##### 数据库 db2
schemaname | relname | indexrelname | idx_scan | idx_tup_read | idx_tup_fetch | pg_relation_size
------------+---------+--------------+----------+--------------+---------------+------------------
(0 rows)
##### 数据库 db3
schemaname | relname | indexrelname | idx_scan | idx_tup_read | idx_tup_fetch | pg_relation_size
------------+---------+--------------+----------+--------------+---------------+------------------
(0 rows)
##### 数据库 francs
schemaname | relname | indexrelname | idx_scan | idx_tup_read | idx_tup_fetch | pg_relation_size
------------+---------+--------------+----------+--------------+---------------+------------------
(0 rows)
##### 数据库 francs1
schemaname | relname | indexrelname | idx_scan | idx_tup_read | idx_tup_fetch | pg_relation_size
------------+---------+--------------+----------+--------------+---------------+------------------
(0 rows)
##### 数据库 skytf
schemaname | relname | indexrelname | idx_scan | idx_tup_read | idx_tup_fetch | pg_relation_size
------------+---------+--------------+----------+--------------+---------------+------------------
(0 rows)
##### 数据库 source_db
schemaname | relname | indexrelname | idx_scan | idx_tup_read | idx_tup_fetch | pg_relation_size
------------+---------+--------------+----------+--------------+---------------+------------------
(0 rows)
########### sql4: 膨胀检查 ###############
sql4: select * from
(
SELECT
current_database() AS db, schemaname, tablename, reltuples::bigint AS tups, relpages::bigint AS pages, otta,
ROUND(CASE WHEN otta=0 OR sml.relpages=0 OR sml.relpages=otta THEN 0.0 ELSE sml.relpages/otta::numeric END,1) AS tbloat,
CASE WHEN relpages < otta THEN 0 ELSE relpages::bigint - otta END AS wastedpages,
CASE WHEN relpages < otta THEN 0 ELSE bs*(sml.relpages-otta)::bigint END AS wastedbytes,
CASE WHEN relpages < otta THEN '0 bytes'::text ELSE (bs*(relpages-otta))::bigint || ' bytes' END AS wastedsize,
iname, ituples::bigint AS itups, ipages::bigint AS ipages, iotta,
ROUND(CASE WHEN iotta=0 OR ipages=0 OR ipages=iotta THEN 0.0 ELSE ipages/iotta::numeric END,1) AS ibloat,
CASE WHEN ipages < iotta THEN 0 ELSE ipages::bigint - iotta END AS wastedipages,
CASE WHEN ipages < iotta THEN 0 ELSE bs*(ipages-iotta) END AS wastedibytes,
CASE WHEN ipages < iotta THEN '0 bytes' ELSE (bs*(ipages-iotta))::bigint || ' bytes' END AS wastedisize,
CASE WHEN relpages < otta THEN
CASE WHEN ipages < iotta THEN 0 ELSE bs*(ipages-iotta::bigint) END
ELSE CASE WHEN ipages < iotta THEN bs*(relpages-otta::bigint)
ELSE bs*(relpages-otta::bigint + ipages-iotta::bigint) END
END AS totalwastedbytes
FROM (
SELECT
nn.nspname AS schemaname,
cc.relname AS tablename,
COALESCE(cc.reltuples,0) AS reltuples,
COALESCE(cc.relpages,0) AS relpages,
COALESCE(bs,0) AS bs,
COALESCE(CEIL((cc.reltuples*((datahdr+ma-
(CASE WHEN datahdr%ma=0 THEN ma ELSE datahdr%ma END))+nullhdr2+4))/(bs-20::float)),0) AS otta,
COALESCE(c2.relname,'?') AS iname, COALESCE(c2.reltuples,0) AS ituples, COALESCE(c2.relpages,0) AS ipages,
COALESCE(CEIL((c2.reltuples*(datahdr-12))/(bs-20::float)),0) AS iotta -- very rough approximation, assumes all cols
FROM
pg_class cc
JOIN pg_namespace nn ON cc.relnamespace = nn.oid AND nn.nspname <> 'information_schema'
LEFT JOIN
(
SELECT
ma,bs,foo.nspname,foo.relname,
(datawidth+(hdr+ma-(case when hdr%ma=0 THEN ma ELSE hdr%ma END)))::numeric AS datahdr,
(maxfracsum*(nullhdr+ma-(case when nullhdr%ma=0 THEN ma ELSE nullhdr%ma END))) AS nullhdr2
FROM (
SELECT
ns.nspname, tbl.relname, hdr, ma, bs,
SUM((1-coalesce(null_frac,0))*coalesce(avg_width, 2048)) AS datawidth,
MAX(coalesce(null_frac,0)) AS maxfracsum,
hdr+(
SELECT 1+count(*)/8
FROM pg_stats s2
WHERE null_frac<>0 AND s2.schemaname = ns.nspname AND s2.tablename = tbl.relname
) AS nullhdr
FROM pg_attribute att
JOIN pg_class tbl ON att.attrelid = tbl.oid
JOIN pg_namespace ns ON ns.oid = tbl.relnamespace
LEFT JOIN pg_stats s ON s.schemaname=ns.nspname
AND s.tablename = tbl.relname
AND s.inherited=false
AND s.attname=att.attname,
(
SELECT
(SELECT current_setting('block_size')::numeric) AS bs,
CASE WHEN SUBSTRING(SPLIT_PART(v, ' ', 2) FROM '#[0-9]+.[0-9]+#%' for '#')
IN ('8.0','8.1','8.2') THEN 27 ELSE 23 END AS hdr,
CASE WHEN v ~ 'mingw32' OR v ~ '64-bit' THEN 8 ELSE 4 END AS ma
FROM (SELECT version() AS v) AS foo
) AS constants
WHERE att.attnum > 0 AND tbl.relkind='r'
GROUP BY 1,2,3,4,5
) AS foo
) AS rs
ON cc.relname = rs.relname AND nn.nspname = rs.nspname
LEFT JOIN pg_index i ON indrelid = cc.oid
LEFT JOIN pg_class c2 ON c2.oid = i.indexrelid
) AS sml ORDER BY totalwastedbytes DESC
) t where totalwastedbytes/1024/1024 > 1024;
##### 数据库 db1
db | schemaname | tablename | tups | pages | otta | tbloat | wastedpages | wastedbytes | wastedsize | iname | itups | ipages | iotta | ibloat | wastedipages | wastedibytes | wastedisize | totalwastedbytes
----+------------+-----------+------+-------+------+--------+-------------+-------------+------------+-------+-------+--------+-------+--------+--------------+--------------+-------------+------------------
(0 rows)
##### 数据库 db2
db | schemaname | tablename | tups | pages | otta | tbloat | wastedpages | wastedbytes | wastedsize | iname | itups | ipages | iotta | ibloat | wastedipages | wastedibytes | wastedisize | totalwastedbytes
----+------------+-----------+------+-------+------+--------+-------------+-------------+------------+-------+-------+--------+-------+--------+--------------+--------------+-------------+------------------
(0 rows)
##### 数据库 db3
db | schemaname | tablename | tups | pages | otta | tbloat | wastedpages | wastedbytes | wastedsize | iname | itups | ipages | iotta | ibloat | wastedipages | wastedibytes | wastedisize | totalwastedbytes
----+------------+-----------+------+-------+------+--------+-------------+-------------+------------+-------+-------+--------+-------+--------+--------------+--------------+-------------+------------------
(0 rows)
##### 数据库 francs
db | schemaname | tablename | tups | pages | otta | tbloat | wastedpages | wastedbytes | wastedsize | iname | itups | ipages | iotta | ibloat | wastedipages | wastedibytes | wastedisize | totalwastedbytes
----+------------+-----------+------+-------+------+--------+-------------+-------------+------------+-------+-------+--------+-------+--------+--------------+--------------+-------------+------------------
(0 rows)
##### 数据库 francs1
db | schemaname | tablename | tups | pages | otta | tbloat | wastedpages | wastedbytes | wastedsize | iname | itups | ipages | iotta | ibloat | wastedipages | wastedibytes | wastedisize | totalwastedbytes
----+------------+-----------+------+-------+------+--------+-------------+-------------+------------+-------+-------+--------+-------+--------+--------------+--------------+-------------+------------------
(0 rows)
##### 数据库 skytf
db | schemaname | tablename | tups | pages | otta | tbloat | wastedpages | wastedbytes | wastedsize | iname | itups | ipages | iotta | ibloat | wastedipages | wastedibytes | wastedisize | totalwastedbytes
----+------------+-----------+------+-------+------+--------+-------------+-------------+------------+-------+-------+--------+-------+--------+--------------+--------------+-------------+------------------
(0 rows)
##### 数据库 source_db
db | schemaname | tablename | tups | pages | otta | tbloat | wastedpages | wastedbytes | wastedsize | iname | itups | ipages | iotta | ibloat | wastedipages | wastedibytes | wastedisize | totalwastedbytes
----+------------+-----------+------+-------+------+--------+-------------+-------------+------------+-------+-------+--------+-------+--------+--------------+--------------+-------------+------------------
(0 rows)
########### sql5: 检查垃圾数据 ###############
sql5: select schemaname,relname,n_live_tup,n_dead_tup from pg_stat_all_tables where n_live_tup>0 and n_dead_tup/n_live_tup>0.2 and schemaname not in ('pg_toast','pg_catalog');
##### 数据库 db1
schemaname | relname | n_live_tup | n_dead_tup
------------+---------+------------+------------
(0 rows)
##### 数据库 db2
schemaname | relname | n_live_tup | n_dead_tup
------------+---------+------------+------------
(0 rows)
##### 数据库 db3
schemaname | relname | n_live_tup | n_dead_tup
------------+---------+------------+------------
(0 rows)
##### 数据库 francs
schemaname | relname | n_live_tup | n_dead_tup
------------+---------+------------+------------
(0 rows)
##### 数据库 francs1
schemaname | relname | n_live_tup | n_dead_tup
------------+---------+------------+------------
(0 rows)
##### 数据库 skytf
schemaname | relname | n_live_tup | n_dead_tup
------------+---------+------------+------------
(0 rows)
##### 数据库 source_db
schemaname | relname | n_live_tup | n_dead_tup
------------+---------+------------+------------
(0 rows)
########### sql6: 检查序列是否正常 ###############
sql6: do language plpgsql $$
declare
v_seq name;
v_max int8 := 0;
v_last int8 := 0;
begin
for v_seq in
select quote_ident(t2.nspname) || '.' || quote_ident(t1.relname) from pg_class t1, pg_namespace t2 where t1.relnamespace=t2.oid and relkind='S'
loop
execute 'select max_value,last_value from '||v_seq into v_max, v_last;
if v_max-v_last<500000000 then
raise notice 'Warning seq % last % max %', v_seq, v_last, v_max ;
-- else
-- raise notice 'Normal seq % last % max %', v_seq, v_last, v_max ;
end if;
end loop;
end;
$$;
##### 数据库 db1
DO
##### 数据库 db2
DO
##### 数据库 db3
DO
##### 数据库 francs
DO
##### 数据库 francs1
DO
##### 数据库 skytf
DO
##### 数据库 source_db
DO
########### sql7: 检查分区表 ###############
sql7: SELECT
nspname ,
relname ,
COUNT(*) AS partition_num
FROM
pg_class c ,
pg_namespace n ,
pg_inherits i
WHERE
c.oid = i.inhparent
AND c.relnamespace = n.oid
AND c.relhassubclass
AND c.relkind = 'r'
GROUP BY 1,2 ORDER BY partition_num DESC;
##### 数据库 db1
nspname | relname | partition_num
---------+---------+---------------
(0 rows)
##### 数据库 db2
nspname | relname | partition_num
---------+---------+---------------
(0 rows)
##### 数据库 db3
nspname | relname | partition_num
---------+---------+---------------
(0 rows)
##### 数据库 francs
nspname | relname | partition_num
---------+-----------+---------------
francs | test_full | 11
francs | test_1 | 2
(2 rows)
##### 数据库 francs1
nspname | relname | partition_num
---------+-----------+---------------
francs | test_full | 11
francs | test_1 | 2
(2 rows)
##### 数据库 skytf
nspname | relname | partition_num
---------+---------+---------------
(0 rows)
##### 数据库 source_db
nspname | relname | partition_num
---------+---------+---------------
(0 rows)
--7.4 回滚比例
datname | rollback_ratio | hit_ratio
-----------+------------------------+------------------------
template1 | 0.00000000000000000000 | 0.00000000000000000000
template0 | 0.00000000000000000000 | 0.00000000000000000000
postgres | 0.00947439657117076472 | 0.99814612946255683530
source_db | 0.00150150150150150150 | 0.99846808416504134882
skytf | 0.00150037509377344336 | 0.99846385625687428946
francs | 0.00187195806813927368 | 0.99855606025875524910
db1 | 0.00150037509377344336 | 0.99846271242139503278
db2 | 0.00150037509377344336 | 0.99846271242139503278
db3 | 0.00150037509377344336 | 0.99846271242139503278
francs1 | 0.00150037509377344336 | 0.99852729320341000606
(10 rows)
--7.5 长事务