CentOS6.8 YUM安装Percona-toolkit及详细使用

1. Percona-toolkit简介

Percona Toolkit is a collection of advanced command-line tools used by Percona) support staff to perform a variety of MySQL, MongoDB, and system tasks that are too difficult or complex to perform manually.

These tools are ideal alternatives to private or “one-off” scripts, because they are professionally developed, formally tested, and fully documented. They are also fully self-contained, so installation is quick and easy, and no libraries are installed.

Percona Toolkit was derived from Maatkit and Aspersa, two of the best-known toolkits for MySQL server administration. It is developed and supported by Percona. For more information and other free, open-source software developed by Percona, visit http://www.percona.com/software/.

CentOS6.8 YUM安装Percona-toolkit及详细使用


2. 安装Percona-toolkit

2.1 安装perl依赖包

[root@study /root/software]# rpm -ivh percona-toolkit-3.0.3-1.el6.x86_64.rpm 
warning: percona-toolkit-3.0.3-1.el6.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID cd2efd2a: NOKEY
error: Failed dependencies:
    perl(DBI) >= 1.13 is needed by percona-toolkit-3.0.3-1.el6.x86_64
    perl(DBD::mysql) >= 1.0 is needed by percona-toolkit-3.0.3-1.el6.x86_64
    perl(Time::HiRes) is needed by percona-toolkit-3.0.3-1.el6.x86_64
    perl(IO::Socket::SSL) is needed by percona-toolkit-3.0.3-1.el6.x86_64
    perl(Term::ReadKey) is needed by percona-toolkit-3.0.3-1.el6.x86_64

yum -y install perl-DBI
yum -y install perl-DBD-MySQL
yum -y install perl-Time-HiRes -y
yum -y install perl-IO-Socket-SSL -y
yum install perl-TermReadKey.x86_64

2.2 安装Percona-toolkit

wget https://www.percona.com/downloads/percona-toolkit/3.0.3/binary/redhat/6/x86_64/percona-toolkit-3.0.3-1.el6.x86_64.rpm
rpm -ivh percona-toolkit-3.0.3-1.el6.x86_64.rpm

                                        

3. Percona-toolkit使用

3.1 使用pt-summary查看系统状态,可以用于系统监控(很详细)

[root@study /root]# pt-summary 
# Percona Toolkit System Summary Report ######################
        Date | 2017-06-03 02:10:32 UTC (local TZ: CST +0800)
    Hostname | study
      Uptime | 16 days, 12:48,  1 user,  load average: 0.00, 0.00, 0.00
      System | Alibaba Cloud; Alibaba Cloud ECS; vpc-i440fx-2.1 (Other)
 Service Tag | da3082c9-57d1-4912-9ead-2b190832b182
    Platform | Linux
     Release | CentOS release 6.8 (Final)
      Kernel | 2.6.32-642.13.1.el6.x86_64
Architecture | CPU = 64-bit, OS = 64-bit
   Threading | NPTL 2.12
     SELinux | Disabled
 Virtualized | QEmu
# Processor ##################################################
  Processors | physical = 1, cores = 1, virtual = 1, hyperthreading = no
      Speeds | 1x2500.024
      Models | 1xIntel(R) Xeon(R) CPU E5-2682 v4 @ 2.50GHz
      Caches | 1x40960 KB
# Memory #####################################################
       Total | 1.8G
        Free | 357.0M
        Used | physical = 1.5G, swap allocated = 2.0G, swap used = 620.0k, virtual = 1.5G
      Shared | 32.2M
     Buffers | 164.6M
      Caches | 823.6M
       Dirty | 92 kB
     UsedRSS | 987.6M
  Swappiness | 60
 DirtyPolicy | 20, 10
 DirtyStatus | 0, 0
  Locator   Size     Speed             Form Factor   Type          Type Detail
  ========= ======== ================= ============= ============= ===========
  DIMM 0    2048 MB  Unknown           DIMM          RAM           Other   
# Mounted Filesystems ########################################
  Filesystem  Size Used Type  Opts Mountpoint
  /dev/vda1    40G  23% ext3  rw   /
  tmpfs       939M   0% tmpfs rw   /dev/shm
# Disk Schedulers And Queue Size #############################
         sr0 | [cfq] 128
         vda | [cfq] 128
# Disk Partioning ############################################
Device       Type      Start        End               Size
============ ==== ========== ========== ==================
/dev/vda     Disk                              42949672960
/dev/vda1    Part          1       5222        42944186880
# Kernel Inode State #########################################
dentry-state | 51809    46095   45  0   0   0
     file-nr | 736  0   65535
    inode-nr | 33412    4427
# LVM Volumes ################################################
Unable to collect information
# LVM Volume Groups ##########################################
Unable to collect information
# RAID Controller ############################################
  Controller | No RAID controller detected
# Network Config #############################################
  Controller | Red Hat, Inc Virtio network device
 FIN Timeout | 20
  Port Range | 65000
# Interface Statistics #######################################
  interface  rx_bytes rx_packets  rx_errors   tx_bytes tx_packets  tx_errors
  ========= ========= ========== ========== ========== ========== ==========
  lo            35000        250          0      35000        250          0
  eth0     1000000000    2250000          0 2250000000    2000000          0
# Network Devices ############################################
  Device    Speed     Duplex
  ========= ========= =========
  eth0                            
# Network Connections ########################################
  Connections from remote IP addresses
    14.131.234.27       1
    71.79.35.85         1
    106.11.68.13        1
    140.205.140.205     1
  Connections to local IP addresses
    172.17.178.209      4
  Connections to top 10 local ports
    18913               1
    22                  1
    443                 1
    61345               1
  States of connections
    CLOSE_WAIT          1
    ESTABLISHED         3
    LISTEN              6
# Top Processes ##############################################
  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
    1 root      20   0 19236 1396 1136 S  0.0  0.1   0:00.70 init
    2 root      20   0     0    0    0 S  0.0  0.0   0:00.01 kthreadd
    3 root      RT   0     0    0    0 S  0.0  0.0   0:00.00 migration/0
    4 root      20   0     0    0    0 S  0.0  0.0   0:00.82 ksoftirqd/0
    5 root      RT   0     0    0    0 S  0.0  0.0   0:00.00 stopper/0
    6 root      RT   0     0    0    0 S  0.0  0.0   0:00.99 watchdog/0
    7 root      20   0     0    0    0 S  0.0  0.0   0:38.10 events/0
    8 root      20   0     0    0    0 S  0.0  0.0   0:00.00 events/0
    9 root      20   0     0    0    0 S  0.0  0.0   0:00.00 events_long/0
# Notable Processes ##########################################
  PID    OOM    COMMAND
 1108    -17    sshd
# Simplified and fuzzy rounded vmstat (wait please) ##########
  procs  ---swap-- -----io---- ---system---- --------cpu--------
   r  b    si   so    bi    bo     ir     cs  us  sy  il  wa  st
   2  0     0    0     1     5     25     10   0   0  99   0   0
   0  0     0    0    35     0    300   1000   6   6  88   0   0
   0  0     0    0     0    25    125    300   0   0 100   0   0
   0  0     0    0     0     0    125    250   0   0 100   0   0
   0  0     0    0     0   400    150    300   0   1  99   0   0
# Memory mamagement ##########################################
Transparent huge pages are enabled.
# The End ####################################################

3.2 使用pt-mysql-summary查看MySQL详细信息及状态

[root@study /root]# pt-mysql-summary --user=root --password=xxxxxx
Warning: Using a password on the command line interface can be insecure.
# Percona Toolkit MySQL Summary Report #######################
              System time | 2017-06-03 02:21:31 UTC (local TZ: CST +0800)
# Instances ##################################################
  Port  Data Directory             Nice OOM Socket
  ===== ========================== ==== === ======
   3306 /data/mysql                0    0   /tmp/mysql.sock
# MySQL Executable ###########################################
       Path to executable | /usr/local/mysql/bin/mysqld
              Has symbols | Yes
# Report On Port 3306 ########################################
                     User | root@localhost
                     Time | 2017-06-03 10:21:31 (CST)
                 Hostname | study
                  Version | 5.6.34-log MySQL Community Server (GPL)
                 Built On | linux-glibc2.5 x86_64
                  Started | 2017-06-03 00:00 (up 0+10:21:27)
                Databases | 4
                  Datadir | /data/mysql/
                Processes | 1 connected, 1 running
              Replication | Is not a slave, has 0 slaves connected
                  Pidfile | /data/mysql/mysql.pid (exists)
# Processlist ################################################

  Command                        COUNT(*) Working SUM(Time) MAX(Time)
  ------------------------------ -------- ------- --------- ---------
  Query                                 1       1         0         0

  User                           COUNT(*) Working SUM(Time) MAX(Time)
  ------------------------------ -------- ------- --------- ---------
  root                                  1       1         0         0

  Host                           COUNT(*) Working SUM(Time) MAX(Time)
  ------------------------------ -------- ------- --------- ---------
  localhost                             1       1         0         0

  db                             COUNT(*) Working SUM(Time) MAX(Time)
  ------------------------------ -------- ------- --------- ---------
  NULL                                  1       1         0         0

  State                          COUNT(*) Working SUM(Time) MAX(Time)
  ------------------------------ -------- ------- --------- ---------
  init                                  1       1         0         0

# Status Counters (Wait 10 Seconds) ##########################
Variable                                Per day  Per second     10 secs
Aborted_connects                             10                        
Binlog_cache_use                            700                        
Binlog_stmt_cache_use                         6                        
Bytes_received                          5000000          60         400
Bytes_sent                            800000000        9000        2250
Com_change_db                               700                        
Com_delete                                   70                        
Com_insert                                  125                        
Com_select                                12500                       1
Com_set_option                             1500                        
Com_show_fields                             400                        
Com_show_status                               4                        
Com_show_variables                            2                        
Com_update                                  500                        
Connections                                 700                       1
Created_tmp_disk_tables                    2000                       1
Created_tmp_files                            15                        
Created_tmp_tables                         3000                       6
Flush_commands                                2                        
Handler_commit                            12500                        
Handler_delete                               70                        
Handler_external_lock                     30000                        
Handler_prepare                            1250                        
Handler_read_first                         1500                        
Handler_read_key                        1250000          15            
Handler_read_last                             2                        
Handler_read_next                        300000           3            
Handler_read_prev                         12500                        
Handler_read_rnd                         150000           1            
Handler_read_rnd_next                   3000000          35          40
Handler_update                           400000           4            
Handler_write                            250000           3          40
Innodb_buffer_pool_bytes_data          45000000         500            
Innodb_buffer_pool_pages_flushed           2500                        
Innodb_buffer_pool_read_requests        2250000          25            
Innodb_buffer_pool_reads                   2500                        
Innodb_buffer_pool_write_requests          6000                        
Innodb_data_fsyncs                         1750                        
Innodb_data_read                       45000000         500            
Innodb_data_reads                          3000                        
Innodb_data_writes                         4000                        
Innodb_data_written                    80000000        1000            
Innodb_dblwr_pages_written                 2500                        
Innodb_dblwr_writes                         350                        
Innodb_log_write_requests                  2000                        
Innodb_log_writes                          1000                        
Innodb_os_log_fsyncs                        700                        
Innodb_os_log_written                   1500000          15            
Innodb_pages_created                         20                        
Innodb_pages_read                          2500                        
Innodb_pages_written                       2500                        
Innodb_rows_deleted                          70                        
Innodb_rows_inserted                        100                        
Innodb_rows_read                        4000000          45            
Innodb_rows_updated                         500                        
Innodb_num_open_files                        60                        
Innodb_available_undo_logs                  300                        
Key_read_requests                       1250000          15            
Key_reads                                     6                        
Key_write_requests                       125000           1            
Open_table_definitions                      200                        
Opened_files                               8000                       5
Opened_table_definitions                    200                        
Opened_tables                               200                        
Qcache_hits                               22500                        
Qcache_inserts                            10000                        
Qcache_lowmem_prunes                       4500                        
Qcache_not_cached                          1500                       1
Queries                                   40000                       4
Questions                                 40000                       4
Select_range                               3500                        
Select_scan                                1750                        
Sort_range                                 2000                        
Sort_rows                                150000           1            
Sort_scan                                  2500                        
Table_locks_immediate                     15000                        
Table_open_cache_hits                     15000                        
Table_open_cache_misses                     200                        
Threads_created                               9                        
Uptime                                    90000           1           1
# Table cache ################################################
                     Size | 256
                    Usage | 30%
# 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 | ON
                     Size | 16.0M
                    Usage | 100%
         HitToInsertRatio | 200%
# Schema #####################################################
Specify --databases or --all-databases to dump and summarize schemas
# Noteworthy Technologies ####################################
                      SSL | No
     Explicit LOCK TABLES | No
           Delayed Insert | No
          XA Transactions | No
              NDB Cluster | No
      Prepared Statements | No
 Prepared statement count | 0
# InnoDB #####################################################
                  Version | 5.6.34
         Buffer Pool Size | 128.0M
         Buffer Pool Fill | 15%
        Buffer Pool Dirty | 0%
           File Per Table | ON
                Page Size | 16k
            Log File Size | 3 * 32.0M = 96.0M
          Log Buffer Size | 2M
             Flush Method | 
      Flush Log At Commit | 2
               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 | 0
             InnoDB Queue | 0 queries inside InnoDB, 0 queries in queue
       Oldest Transaction | 0 Seconds
         History List Len | 1294
               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 | 16.0M
                 Pct Used | 20%
                Unflushed | 0%
# Security ###################################################
                    Users | 2 users, 0 anon, 0 w/o pw, 0 old pw
            Old Passwords | 0
# Binary Logging #############################################
                  Binlogs | 8
               Zero-Sized | 0
               Total Size | 5.0M
            binlog_format | MIXED
         expire_logs_days | 7
              sync_binlog | 0
                server_id | 1
             binlog_do_db | 
         binlog_ignore_db | 
# Noteworthy Variables #######################################
     Auto-Inc Incr/Offset | 1/1
   default_storage_engine | InnoDB
               flush_time | 0
             init_connect | SET NAMES utf8mb4
                init_file | 
                 sql_mode | NO_ENGINE_SUBSTITUTION
         join_buffer_size | 8M
         sort_buffer_size | 8M
         read_buffer_size | 2M
     read_rnd_buffer_size | 8M
       bulk_insert_buffer | 0.00
      max_heap_table_size | 8M
           tmp_table_size | 32M
       max_allowed_packet | 500M
             thread_stack | 256k
                      log | 
                log_error | /data/mysql/mysql-error.log
             log_warnings | 1
         log_slow_queries | 
log_queries_not_using_indexes | OFF
        log_slave_updates | OFF
# Configuration File #########################################
              Config File | /etc/my.cnf

[client]
port                                = 3306
socket                              = /tmp/mysql.sock
default-character-set               = utf8mb4

[mysql]
prompt                              = "MySQL [\d]> "
no-auto-rehash

[mysqld]
port                                = 3306
socket                              = /tmp/mysql.sock
basedir                             = /usr/local/mysql
datadir                             = /data/mysql
pid-file                            = /data/mysql/mysql.pid
user                                = mysql
bind-address                        = 0.0.0.0
server-id                           = 1
init-connect                        = 'SET NAMES utf8mb4'
character-set-server                = utf8mb4
skip-name-resolve
back_log                            = 300
max_connections                     = 938
max_connect_errors                  = 6000
open_files_limit                    = 65535
table_open_cache                    = 256
max_allowed_packet                  = 500M
binlog_cache_size                   = 1M
max_heap_table_size                 = 8M
tmp_table_size                      = 32M
read_buffer_size                    = 2M
read_rnd_buffer_size                = 8M
sort_buffer_size                    = 8M
join_buffer_size                    = 8M
key_buffer_size                     = 16M
thread_cache_size                   = 16
query_cache_type                    = 1
query_cache_size                    = 16M
query_cache_limit                   = 2M
ft_min_word_len                     = 4
log_bin                             = mysql-bin
binlog_format                       = mixed
expire_logs_days                    = 7
log_error                           = /data/mysql/mysql-error.log
slow_query_log                      = 1
long_query_time                     = 1
slow_query_log_file                 = /data/mysql/mysql-slow.log
performance_schema                  = 0
explicit_defaults_for_timestamp
skip-external-locking
default_storage_engine              = InnoDB
innodb_file_per_table               = 1
innodb_open_files                   = 500
innodb_buffer_pool_size             = 128M
innodb_write_io_threads             = 4
innodb_read_io_threads              = 4
innodb_thread_concurrency           = 0
innodb_purge_threads                = 1
innodb_flush_log_at_trx_commit      = 2
innodb_log_buffer_size              = 2M
innodb_log_file_size                = 32M
innodb_log_files_in_group           = 3
innodb_max_dirty_pages_pct          = 90
innodb_lock_wait_timeout            = 120
bulk_insert_buffer_size             = 8M
myisam_sort_buffer_size             = 16M
myisam_max_sort_file_size           = 10G
myisam_repair_threads               = 1
interactive_timeout                 = 28800
wait_timeout                        = 28800

[mysqldump]
quick
max_allowed_packet                  = 500M

[myisamchk]
key_buffer_size                     = 16M
sort_buffer_size                    = 8M
read_buffer                         = 4M
write_buffer                        = 4M
# Memory management library ##################################
jemalloc enabled in MySQL config for process with ID 21815
Using jemalloc from /usr/lib64/libjemalloc.so.1
# The End ####################################################

3.3 使用pt-query-digest查看分析MySQL慢查询日志

[root@study /root]# pt-query-digest /data/mysql/mysql-slow.log 

# 130ms user time, 20ms system time, 24.38M rss, 203.53M vsz
# Current date: Sat Jun  3 10:25:20 2017
# Hostname: study
# Files: /data/mysql/mysql-slow.log
# Overall: 1 total, 1 unique, 0 QPS, 0x concurrency ______________________
# Time range: all events occurred at 2017-04-22 17:43:09
# Attribute          total     min     max     avg     95%  stddev  median
# ============     ======= ======= ======= ======= ======= ======= =======
# Exec time             1s      1s      1s      1s      1s       0      1s
# Lock time           42us    42us    42us    42us    42us       0    42us
# Rows sent              0       0       0       0       0       0       0
# Rows examine           8       8       8       8       8       0       8
# Query size            92      92      92      92      92       0      92

# Profile
# Rank Query ID           Response time Calls R/Call V/M   Item
# ==== ================== ============= ===== ====== ===== ===============
#    1 0x49F186DD58DC05CC 1.1287 100.0%     1 1.1287  0.00 UPDATE wp_postmeta

# Query 1: 0 QPS, 0x concurrency, ID 0x49F186DD58DC05CC at byte 0 ________
# This item is included in the report because it matches --limit.
# Scores: V/M = 0.00
# Time range: all events occurred at 2017-04-22 17:43:09
# Attribute    pct   total     min     max     avg     95%  stddev  median
# ============ === ======= ======= ======= ======= ======= ======= =======
# Count        100       1
# Exec time    100      1s      1s      1s      1s      1s       0      1s
# Lock time    100    42us    42us    42us    42us    42us       0    42us
# Rows sent      0       0       0       0       0       0       0       0
# Rows examine 100       8       8       8       8       8       0       8
# Query size   100      92      92      92      92      92       0      92
# String:
# Databases    chegva
# Hosts        localhost
# Users        root
# Query_time distribution
#   1us
#  10us
# 100us
#   1ms
#  10ms
# 100ms
#    1s  ################################################################
#  10s+
# Tables
#    SHOW TABLE STATUS FROM `chegva` LIKE 'wp_postmeta'\G
#    SHOW CREATE TABLE `chegva`.`wp_postmeta`\G
UPDATE `wp_postmeta` SET `meta_value` = '27' WHERE `post_id` = 1790 AND `meta_key` = 'views'\G
# Converted for EXPLAIN
# EXPLAIN /*!50100 PARTITIONS*/
select  `meta_value` = '27' from `wp_postmeta` where  `post_id` = 1790 AND `meta_key` = 'views'\G

3.4 使用pt-slave-find查看MySQL所有的从库信息

  • Function

    pt-slave-find - Find and print replication hierarchy tree of MySQL slaves.

  • Usage

    pt-slave-find [OPTIONS] [DSN]

    pt-slave-find finds and prints a hierarchy tree of MySQL slaves.

  • Examples

    pt-slave-find --host master-host

3.5 使用pt-online-schema-change在线更新表(常用)

  • Function

    pt-online-schema-change - ALTER tables without locking them.

  • Usage

    pt-online-schema-change [OPTIONS] DSN

    pt-online-schema-change alters a table’s structure without blocking reads or writes. Specify the database and table in the DSN. Do not use this tool before reading its documentation and checking your backups carefully.

    Add a column to sakila.actor:

    pt-online-schema-change --alter "ADD COLUMN c1 INT" D=sakila,t=actor

    Change sakila.actor to InnoDB, effectively performing OPTIMIZE TABLE in a non-blocking fashion because it is already an InnoDB table:

    pt-online-schema-change --alter "ENGINE=InnoDB" D=sakila,t=actor

  • 执行步骤

    1. 创建一个和你执行alter表相同的表结构tmp

    2. 执行tmp表结构修改,从原表copy数据到修改的表

    3. 在原表上创建触发器,将copy过程中产生的数据,更新到新表

    4. copy完成,释放相关资源,再执行rename表

注意:

通过从原表select *插入到临时表,然后rename表来实现更新表,DLL不会影响正常业务,100条以上数据更改建议用此工具来执行,数据量大会造成主从延时,业务低峰更改。

使用示例:

pt-online-schema-change -uroot -h xxxx -p xxxx --alter='add colume vid int' --execute D=dbname,t=tablename

MySQL大数据删除或者转存

  • 1. mysqldump的时候,要去掉drop table语句

  • 2. 删除的时候,按ID分批删除,最好写个脚本放在screen里面。(减小主从延时)

3.7 常用命令

pt工具各个命令的基本功能介绍,可以使用 command --help 来查看每个命令的具体作用和使用方法;

工具类别

工具命令

工具作用

备注

开发类

pt-duplicate-key-checker

列出并删除重复的索引和外键


pt-online-schema-change

在线修改表结构


pt-query-advisor

分析查询语句,并给出建议,有bug

已废弃

pt-show-grants

规范化和打印权限


pt-upgrade

在多个服务器上执行查询,并比较不同


性能类

pt-index-usage

分析日志中索引使用情况,并出报告


pt-pmp

为查询结果跟踪,并汇总跟踪结果


pt-visual-explain

格式化执行计划


pt-table-usage

分析日志中查询并分析表使用情况

pt 2.2新增命令

配置类

pt-config-diff

比较配置文件和参数


pt-mysql-summary

对mysql配置和status进行汇总


pt-variable-advisor

分析参数,并提出建议


监控类

pt-deadlock-logger

提取和记录mysql死锁信息


pt-fk-error-logger

提取和记录外键信息


pt-mext

并行查看status样本信息


pt-query-digest

分析查询日志,并产生报告

常用命令

pt-trend

按照时间段读取slow日志信息

已废弃

复制类

pt-heartbeat

监控mysql复制延迟


pt-slave-delay

设定从落后主的时间


pt-slave-find

查找和打印所有mysql复制层级关系


pt-slave-restart

监控salve错误,并尝试重启salve


pt-table-checksum

校验主从复制一致性


pt-table-sync

高效同步表数据


系统类

pt-diskstats

查看系统磁盘状态


pt-fifo-split

模拟切割文件并输出


pt-summary

收集和显示系统概况


pt-stalk

出现问题时,收集诊断数据


pt-sift

浏览由pt-stalk创建的文件

pt 2.2新增命令

pt-ioprofile

查询进程IO并打印一个IO活动表

pt 2.2新增命令

实用类

pt-archiver

将表数据归档到另一个表或文件中


pt-find

查找表并执行命令


pt-kill

Kill掉符合条件的sql

常用命令

pt-align

对齐其他工具的输出

pt 2.2新增命令

pt-fingerprint

将查询转成密文

pt 2.2新增命令

官方文档:

CentOS6.8 YUM安装Percona-toolkit及详细使用Percona-Toolkit-3.0.3.pdf

CentOS6.8 YUM安装Percona-toolkit及详细使用Percona-Xtra-Backup-2.4.5.pdf

参考:

https://www.percona.com/doc/percona-toolkit/LATEST/index.html

http://www.cnblogs.com/zping/p/5678652.html

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