Percona Toolkit使用之pt-mysql-summary
阿新 • • 發佈：2018-12-31
pt-mysql-summary的功能是以優雅的形式彙總MySQL伺服器資訊。
用法如下：
pt-mysql-summary [OPTIONS]
pt-mysql-summary方便地彙總出MySQL資料庫伺服器的狀態和配置，使你可以一目瞭然地獲得這些資訊。這不是一個調優或者診斷的工具。它會生成一個報告，可以很容易地diff或者不丟失格式地複製到Email裡。它應該可以很好地運行於任何現代Unix系統。
pt-mysql-summary通過連線到MySQL資料庫伺服器然後執行狀態和配置資訊查詢的方式執行。它將這些零碎資訊儲存到臨時目錄的檔案中，然後藉助awk和其他指令碼語言來整齊格式化。
要使用它，只需要執行即可。作為可選可以加雙“ - ”後接你用來連線MySQL時相同的命令列選項，如下示例：
pt-mysql-summary --user=root
該工具與執行它的伺服器進行最低限度地呼叫。它假定你執行它的伺服器和要進行檢查的伺服器是同一個，因此，它假定可以找到配置檔案，例如my.cnf。然而如果不是這種情況，它可能優雅地折損。請注意，它的輸出並沒有指出哪些資訊來自於MySQL資料庫；哪些資訊來自於作業系統主機。所以如果你在一臺伺服器上執行該工具，然後連線訪問另一臺伺服器上的MySQL，就有可能產生混亂的輸出。
該工具的很多輸出值都故意作了近似舍入處理以展示它們的量級而不是精確的細節。這稱為“ fuzzy-rounding ”。該設計認為一臺伺服器是918QPS還是921QPS並不打緊，如此小的差異微不足道，而只會使得輸出同其他伺服器作比較變得困難。隨著輸入的增大，fuzzy-rounding也以更大的量級近似舍入。剛開始它舍入到最近的5，然後是最近的10，最近的25，然後以一個10倍大的因數重複（50,100,250），以此類推，隨著輸入的增大。以下是該工具產生的報告的一個示例。
前兩部分展示該報告生成自哪臺伺服器以及有哪些MySQL例項執行在該伺服器上。這取自ps的輸出。雖然並不是總能檢查到所有的例項和引數，但往往執行效果還是不錯的。
# Percona Toolkit MySQL Summary Report ####################### System time | 2012-03-30 18:46:05 UTC (local TZ: EDT -0400) # Instances ################################################## Port Data Directory Nice OOM Socket ===== ========================== ==== === ====== 12345 /tmp/12345/data 0 0 /tmp/12345.sock 12346 /tmp/12346/data 0 0 /tmp/12346.sock 12347 /tmp/12347/data 0 0 /tmp/12347.sock
往下是單個MySQL例項的報告。該部分是MySQL例項的快速彙總。“ Time ”值生成自MySQL伺服器，不同於之前部分列印的系統日期和時間，可以以此判斷資料庫時間和作業系統時間是否匹配。
# Report On Port 12345 #######################################
User | [email protected]%
Time | 2012-03-30 14:46:05 (EDT)
Hostname | localhost.localdomain
Version | 5.5.20-log MySQL Community Server (GPL)
Built On | linux2.6 i686
Started | 2012-03-28 23:33 (up 1+15:12:09)
Databases | 4
Datadir | /tmp/12345/data/
Processes | 2 connected, 2 running
Replication | Is not a slave, has 1 slaves connected
Pidfile | /tmp/12345/data/12345.pid (exists)接下來部分是“ SHOW PROCESSLIST ”輸出的彙總。
# Processlist ################################################
Command COUNT(*) Working SUM(Time) MAX(Time)
------------------------------ -------- ------- --------- ---------
Binlog Dump 1 1 150000 150000
Query 1 1 0 0
User COUNT(*) Working SUM(Time) MAX(Time)
------------------------------ -------- ------- --------- ---------
msandbox 2 2 150000 150000
Host COUNT(*) Working SUM(Time) MAX(Time)
------------------------------ -------- ------- --------- ---------
localhost 2 2 150000 150000
db COUNT(*) Working SUM(Time) MAX(Time)
------------------------------ -------- ------- --------- ---------
NULL 2 2 150000 150000
State COUNT(*) Working SUM(Time) MAX(Time)
------------------------------ -------- ------- --------- ---------
Master has sent all binlog to 1 1 150000 150000
NULL 1 1 0 0大約間隔10秒的兩份“ SHOW GLOBAL STATUS ”快照計算而來的select計數。
# Status Counters (Wait 10 Seconds) ##########################
Variable Per day Per second 10 secs
Binlog_cache_disk_use 4
Binlog_cache_use 80
Bytes_received 15000000 175 200
Bytes_sent 15000000 175 2000
Com_admin_commands 1
...................(many lines omitted)............................
Threads_created 40 1
Uptime 90000 1 1表快取大小。
# Table cache ################################################
Size | 400
Usage | 15%Percona Server特性彙總部分。標準版本MySQL因為沒有啟用，會顯示為不支援。
# Key Percona Server features ################################
Table & Index Stats | Not Supported
Multiple I/O Threads | Enabled
Corruption Resilient | Not Supported
Durable Replication | Not Supported
Import InnoDB Tables | Not Supported
Fast Server Restarts | Not Supported
Enhanced Logging | Not Supported
Replica Perf Logging | Not Supported
Response Time Hist. | Not Supported
Smooth Flushing | Not Supported
HandlerSocket NoSQL | Not Supported
Fast Hash UDFs | Unknown外掛彙總部分。
# Plugins ####################################################
InnoDB compression | ACTIVE查詢緩衝部分。
# Query cache ################################################
query_cache_type | ON
Size | 0.0
Usage | 0%
HitToInsertRatio | 0%schema部分。生成自“ mysqldump --no-data ”而不是查詢“ INFORMATION_SCHEMA ”以避免對繁忙的伺服器造成影響。
# Schema #####################################################
Database Tables Views SPs Trigs Funcs FKs Partn
mysql 24
performance_schema 17
sakila 16 7 3 6 3 22
Database MyISAM CSV PERFORMANCE_SCHEMA InnoDB
mysql 22 2
performance_schema 17
sakila 8 15
Database BTREE FULLTEXT
mysql 31
performance_schema
sakila 63 1
c t s e l d i t m v s
h i e n o a n i e a m
a m t u n t t n d r a
r e m g e y i c l
s b t i u h l
t l i n m a i
a o m t t r n
m b e e t
p x
t
Database === === === === === === === === === === ===
mysql 61 10 6 78 5 4 26 3 4 5 3
performance_schema 5 16 33
sakila 1 15 1 3 4 3 19 42 26特定技術使用情況部分。
# Noteworthy Technologies ####################################
Full Text Indexing | Yes
Geospatial Types | No
Foreign Keys | Yes
Partitioning | No
InnoDB Compression | Yes
SSL | No
Explicit LOCK TABLES | No
Delayed Insert | No
XA Transactions | No
NDB Cluster | No
Prepared Statements | No
Prepared statement count | 0InnoDB儲存引擎重要配置引數部分。
# InnoDB #####################################################
Version | 1.1.8
Buffer Pool Size | 16.0M
Buffer Pool Fill | 100%
Buffer Pool Dirty | 0%
File Per Table | OFF
Page Size | 16k
Log File Size | 2 * 5.0M = 10.0M
Log Buffer Size | 8M
Flush Method |
Flush Log At Commit | 1
XA Support | ON
Checksums | ON
Doublewrite | ON
R/W I/O Threads | 4 4
I/O Capacity | 200
Thread Concurrency | 0
Concurrency Tickets | 500
Commit Concurrency | 0
Txn Isolation Level | REPEATABLE-READ
Adaptive Flushing | ON
Adaptive Checkpoint |
Checkpoint Age | 0
InnoDB Queue | 0 queries inside InnoDB, 0 queries in queue
Oldest Transaction | 0 Seconds
History List Len | 209
Read Views | 1
Undo Log Entries | 1 transactions, 1 total undo, 1 max undo
Pending I/O Reads | 0 buf pool reads, 0 normal AIO,
0 ibuf AIO, 0 preads
Pending I/O Writes | 0 buf pool (0 LRU, 0 flush list, 0 page);
0 AIO, 0 sync, 0 log IO (0 log, 0 chkp);
0 pwrites
Pending I/O Flushes | 0 buf pool, 0 log
Transaction States | 1xnot startedMyISAM儲存引擎key cache使用情況部分。
# MyISAM #####################################################
Key Cache | 16.0M
Pct Used | 10%
Unflushed | 0%連線使用者部分。生成自“ mysql ”系統庫。
# Security ###################################################
Users | 2 users, 0 anon, 0 w/o pw, 0 old pw
Old Passwords | OFF二進位制日誌部分。
# Binary Logging #############################################
Binlogs | 1
Zero-Sized | 0
Total Size | 21.8M
binlog_format | STATEMENT
expire_logs_days | 0
sync_binlog | 0
server_id | 12345
binlog_do_db |
binlog_ignore_db |伺服器配置引數部分。
# Noteworthy Variables #######################################
Auto-Inc Incr/Offset | 1/1
default_storage_engine | InnoDB
flush_time | 0
init_connect |
init_file |
sql_mode |
join_buffer_size | 128k
sort_buffer_size | 2M
read_buffer_size | 128k
read_rnd_buffer_size | 256k
bulk_insert_buffer | 0.00
max_heap_table_size | 16M
tmp_table_size | 16M
max_allowed_packet | 1M
thread_stack | 192k
log | OFF
log_error | /tmp/12345/data/mysqld.log
log_warnings | 1
log_slow_queries | ON
log_queries_not_using_indexes | OFF
log_slave_updates | ON美化版的my.cnf配置檔案部分。
# Configuration File #########################################
Config File | /tmp/12345/my.sandbox.cnf
[client]
user = msandbox
password = msandbox
port = 12345
socket = /tmp/12345/mysql_sandbox12345.sock
[mysqld]
port = 12345
socket = /tmp/12345/mysql_sandbox12345.sock
pid-file = /tmp/12345/data/mysql_sandbox12345.pid
basedir = /home/baron/5.5.20
datadir = /tmp/12345/data
key_buffer_size = 16M
innodb_buffer_pool_size = 16M
innodb_data_home_dir = /tmp/12345/data
innodb_log_group_home_dir = /tmp/12345/data
innodb_data_file_path = ibdata1:10M:autoextend
innodb_log_file_size = 5M
log-bin = mysql-bin
relay_log = mysql-relay-bin
log_slave_updates
server-id = 12345
report-host = 127.0.0.1
report-port = 12345
log-error = mysqld.log
innodb_lock_wait_timeout = 3
# The End ####################################################以下為個人本地環境的測試資料。
[email protected]:~# pt-mysql-summary --host=192.168.112.129 --port=3306 --user=root --password=123456 --all-databases
mysql: [Warning] Using a password on the command line interface can be insecure.
# Percona Toolkit MySQL Summary Report #######################
System time | 2018-04-07 19:26:17 UTC (local TZ: CST +0800)
# Instances ##################################################
Port Data Directory Nice OOM Socket
===== ========================== ==== === ======
/usr/local/mysql/data 0 0 /tmp/mysql.sock
# MySQL Executable ###########################################
Path to executable | /usr/local/mysql/bin/mysqld
Has symbols | Yes
# Slave Hosts ################################################
*************************** 1. row ***************************
Server_id: 1025
Host: 192.168.136.128
User: root
Password: 123456
Port: 3306
Master_id: 1024
Slave_UUID: b5fe6950-6c2a-11e7-a60a-000c29c6454d
# Report On Port 3306 ########################################
User | [email protected]%
Time | 2018-04-08 03:26:16 (CST)
Hostname | ubuntu
Version | 5.7.18-log Source distribution
Built On | Linux x86_64
Started | 2018-04-07 20:30 (up 0+06:56:11)
Databases | 5
Datadir | /usr/local/mysql/data/
Processes | 2 connected, 2 running
Replication | Is not a slave, has 1 slaves connected
Pidfile | /usr/local/mysql/data/ubuntu.pid (exists)
# Processlist ################################################
Command COUNT(*) Working SUM(Time) MAX(Time)
------------------------------ -------- ------- --------- ---------
Binlog Dump GTID 1 1 50 50
Query 1 1 0 0
User COUNT(*) Working SUM(Time) MAX(Time)
------------------------------ -------- ------- --------- ---------
root 2 2 50 50
Host COUNT(*) Working SUM(Time) MAX(Time)
------------------------------ -------- ------- --------- ---------
192.168.112.128 1 1 50 50
192.168.112.129 1 1 0 0
db COUNT(*) Working SUM(Time) MAX(Time)
------------------------------ -------- ------- --------- ---------
NULL 2 2 50 50
State COUNT(*) Working SUM(Time) MAX(Time)
------------------------------ -------- ------- --------- ---------
Master has sent all binlog to 1 1 50 50
starting 1 1 0 0
# Status Counters (Wait 10 Seconds) ##########################
Variable Per day Per second 11 secs
Bytes_received 100000 1 2000
Bytes_sent 1250000 15 20000
...................(many lines omitted)............................
Table_open_cache_misses 500 3
Threads_created 6
Uptime 90000 1 1
# Table cache ################################################
Size | 2000
Usage | 7%
# Key Percona Server features ################################
Table & Index Stats | Not Supported
Multiple I/O Threads | Enabled
Corruption Resilient | Not Supported
Durable Replication | Not Supported
Import InnoDB Tables | Not Supported
Fast Server Restarts | Not Supported
Enhanced Logging | Not Supported
Replica Perf Logging | Disabled
Response Time Hist. | Not Supported
Smooth Flushing | Not Supported
HandlerSocket NoSQL | Not Supported
Fast Hash UDFs | Unknown
# Percona XtraDB Cluster #####################################
# Plugins ####################################################
InnoDB compression | ACTIVE
# Query cache ################################################
query_cache_type | OFF
Size | 1.0M
Usage | 1%
HitToInsertRatio | 0%
# Schema #####################################################
Database Tables Views SPs Trigs Funcs FKs Partn
mysql 31
player 5 1
Database MyISAM InnoDB CSV
mysql 10 19 2
player 5
Database BTREE
mysql 38
player 12
c t s e v i f l d t b s t b m m t
h i e n a n l o a i i m e l e e i
a m t u r t o n t n g a x o d d m
r e m c a g e y i l t b i i e
s h t b t i n l u u
t a l i n t i m m
a r o m t n t b
m b e t e l
p x o
t b
Database === === === === === === === === === === === === === === === === ===
mysql 61 15 6 62 18 42 3 5 4 6 23 4 26 5 2 2 2
player 16 6 3 11
# Noteworthy Technologies ####################################
Full Text Indexing | No
Geospatial Types | No
Foreign Keys | Yes
Partitioning | No
InnoDB Compression | Yes
SSL | No
Explicit LOCK TABLES | No
Delayed Insert | No
XA Transactions | No
NDB Cluster | No
Prepared Statements | No
Prepared statement count | 0
# InnoDB #####################################################
Version | 5.7.18
Buffer Pool Size | 128.0M
Buffer Pool Fill | 4%
Buffer Pool Dirty | 0%
File Per Table | ON
Page Size | 16k
Log File Size | 2 * 48.0M = 96.0M
Log Buffer Size | 16M
Flush Method |
Flush Log At Commit | 1
XA Support | ON
Checksums | ON
Doublewrite | ON
R/W I/O Threads | 4 4
I/O Capacity | 200
Thread Concurrency | 0
Concurrency Tickets | 5000
Commit Concurrency | 0
Txn Isolation Level | REPEATABLE-READ
Adaptive Flushing | ON
Adaptive Checkpoint |
Checkpoint Age | 9
InnoDB Queue | 0 queries inside InnoDB, 0 queries in queue
Oldest Transaction | 0 Seconds
History List Len | 0
Read Views | 0
Undo Log Entries | 0 transactions, 0 total undo, 0 max undo
Pending I/O Reads | 0 buf pool reads, 0 normal AIO, 0 ibuf AIO, 0 preads
Pending I/O Writes | 0 buf pool (0 LRU, 0 flush list, 0 page); 0 AIO, 0 sync, 0 log IO (0 log, 0 chkp); 0 pwrites
Pending I/O Flushes | 0 buf pool, 0 log
Transaction States | 1xnot started
# MyISAM #####################################################
Key Cache | 8.0M
Pct Used | 20%
Unflushed | 0%
# Security ###################################################
Users | 2 users, 0 anon, 0 w/o pw, 0 old pw
Old Passwords | 0
# Binary Logging #############################################
Binlogs | 28
Zero-Sized | 0
Total Size | 168.8k
binlog_format | ROW
expire_logs_days | 0
sync_binlog | 1
server_id | 1024
binlog_do_db |
binlog_ignore_db |
# Noteworthy Variables #######################################
Auto-Inc Incr/Offset | 1/1
default_storage_engine | InnoDB
flush_time | 0
init_connect |
init_file |
sql_mode | STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_S
UBSTITUTION join_buffer_size | 256k
sort_buffer_size | 256k
read_buffer_size | 128k
read_rnd_buffer_size | 256k
bulk_insert_buffer | 0.00
max_heap_table_size | 16M
tmp_table_size | 16M
max_allowed_packet | 4M
thread_stack | 256k
log |
log_error | /usr/local/mysql/data/ubuntu.err
log_warnings | 2
log_slow_queries |
log_queries_not_using_indexes | OFF
log_slave_updates | ON
# Configuration File #########################################
Config File | /etc/my.cnf
[client]
user = root
password = 123456
port = 3306
socket = /tmp/mysql.sock
[mysqld]
socket = /tmp/mysql.sock
basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
sql_mode = STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,N
O_ENGINE_SUBSTITUTIONinnodb_buffer_pool_instances = 1
slow_query_log = ON
long_query_time = 10
log_throttle_queries_not_using_indexes = 1
log_output = FILE
show-slave-auth-info
server-id = 1024
log-bin = master-bin
log-bin-index = master-bin.index
binlog_format = row
binlog_rows_query_log_events = ON
sync_binlog = 1
innodb_support_xa = ON
innodb_flush_log_at_trx_commit = 1
skip-slave-start
log_slave_updates = ON
relay_log_recovery = ON
gtid_mode = ON
enforce_gtid_consistency = 1
# Memory management library ##################################
jemalloc is not enabled in MySQL config for process with ID 1846
# The End ####################################################參考：