Preface
 
    Sometimes we need to collect information of  MySQL server as a report when we first time take over the system by someone else.Espcially there're lots of  servers for you to check them one by one with manual command.We need a simple tool to increase the efficiency when doing so.
 
Introduce
 
    pt-mysql-summary can help us to print information of our MySQL servers nicely.It's not a tuning or diagnostic tool but a tool just provides us a report with neat format.
 
Procedure
 
Usage
 pt-mysql-summary [OPTIONS]

Common Parameters

 --all-databases //Specify the scope is all databases for summarizing.

 --databases //Specify the only database for summarizing.

 --default-files //Specify the configuration file to use.

 --list-encrypted-tables //Specify to contain encrypted tables in all databases.

 --read-samples //Create a report from this file you sepcified.

 --save-samples //Save to the direcotry you want to store the summary.

 --sleep //Seconds to sleep for counter.
Example
 
Execute pt-mysql-summary with just connect options(single master).
 [root@zlm1 :: ~]

 #pt-mysql-summary --user=root --password=Passw0rd --host=localhost

 mysql: [Warning] Using a password on the command line interface can be insecure.

 # Percona Toolkit MySQL Summary Report #######################

               System time | -- :: UTC (local TZ: CEST +)

 # Instances ##################################################

   Port  Data Directory             Nice OOM Socket

   ===== ========================== ==== === ======

 # MySQL Executable ###########################################

 # Slave Hosts ################################################

 No slaves found //The slave server is not started up yet.

 # Report On Port  ######################################## //Summary of overall of MySQL server.

                      User | root@localhost

                      Time | -- :: (CEST)

                  Hostname | zlm1

                   Version | 5.7.-log MySQL Community Server (GPL)

                  Built On | linux-glibc2. x86_64

                   Started | -- : (up +::)

                 Databases |

                   Datadir | /data/mysql/mysql3306/data/

                 Processes |  connected,  running

               Replication | Is not a slave, has  slaves connected

                   Pidfile | mysql.pid (does not exist)

 # Processlist ################################################ //This is all the contents in processlist.

   Command                        COUNT(*) Working SUM(Time) MAX(Time)

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

   Query

   Sleep                                                          

   User                           COUNT(*) Working SUM(Time) MAX(Time)

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

   monitor

   root                                                           

   Host                           COUNT(*) Working SUM(Time) MAX(Time)

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

   localhost

   zlm1                                                           

   db                             COUNT(*) Working SUM(Time) MAX(Time)

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

   NULL                                                           

   State                          COUNT(*) Working SUM(Time) MAX(Time)

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

   starting                                                       

 # Status Counters (Wait  Seconds) ########################## //This paragragh shows the global status of MySQL and with 10 secs' differential values.

 Variable                                Per day  Per second      secs

 Bytes_received

 Bytes_sent

 Com_admin_commands

 Com_select

 Com_set_option

 Com_show_slave_status

 Com_show_status

 Com_show_variables

 Connections

 Created_tmp_files

 Created_tmp_tables

 Flush_commands

 Handler_commit

 Handler_external_lock

 Handler_read_first

 Handler_read_key

 Handler_read_next

 Handler_read_rnd_next

 Handler_write

 Innodb_buffer_pool_bytes_data

 Innodb_buffer_pool_pages_flushed

 Innodb_buffer_pool_read_requests

 Innodb_buffer_pool_reads

 Innodb_buffer_pool_write_requests

 Innodb_data_fsyncs

 Innodb_data_read

 Innodb_data_reads

 Innodb_data_writes

 Innodb_data_written

 Innodb_dblwr_pages_written

 Innodb_dblwr_writes

 Innodb_log_writes

 Innodb_os_log_fsyncs

 Innodb_os_log_written

 Innodb_pages_created

 Innodb_pages_read

 Innodb_pages_written

 Innodb_rows_read

 Innodb_num_open_files

 Innodb_available_undo_logs

 Key_read_requests

 Key_reads

 Open_table_definitions

 Opened_files

 Opened_table_definitions

 Opened_tables

 Queries

 Questions

 Select_scan

 Table_locks_immediate

 Table_open_cache_hits

 Table_open_cache_misses

 Threads_created

 Uptime

 # Table cache ################################################

                      Size |

                     Usage | %

 # Key Percona Server features ################################ //Because mine is not percona version,so most of the features are not supported.

       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 | Enabled

       Response Time Hist. | Not Supported

           Smooth Flushing | Not Supported

       HandlerSocket NoSQL | Not Supported

            Fast Hash UDFs | Unknown

 # Percona XtraDB Cluster ##################################### //If we are using PXC structure,this paragraph will show the detail of it.

 # Plugins ####################################################

        InnoDB compression | ACTIVE

 # Query cache ################################################

          query_cache_type | OFF

                      Size | 0.0

                     Usage | %

          HitToInsertRatio | %

 # Semisynchronous Replication ################################ //Information of semi-replication if there's a master-slave replication.

                    Master | Disabled

                     Slave | Disabled

 # 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 |

 # InnoDB #####################################################

                   Version | 5.7.

          Buffer Pool Size | 100.0M

          Buffer Pool Fill | %

         Buffer Pool Dirty | %

            File Per Table | ON

                 Page Size | 16k

             Log File Size |  * 100.0M = 300.0M

           Log Buffer Size | 8M

              Flush Method | O_DIRECT

       Flush Log At Commit |

                XA Support | ON

                 Checksums | ON

               Doublewrite | ON

           R/W I/O Threads |

              I/O Capacity |

        Thread Concurrency |

       Concurrency Tickets |

        Commit Concurrency |

       Txn Isolation Level | READ-COMMITTED

         Adaptive Flushing | ON

       Adaptive Checkpoint |

            Checkpoint Age |

              InnoDB Queue |  queries inside InnoDB,  queries in queue

        Oldest Transaction |  Seconds

          History List Len |

                Read Views |

          Undo Log Entries |  transactions,  total undo,  max undo

         Pending I/O Reads |  buf pool reads,  normal AIO,  ibuf AIO,  preads

        Pending I/O Writes |  buf pool ( LRU,  flush list,  page);  AIO,  sync,  log IO ( log,  chkp);  pwrites

       Pending I/O Flushes |  buf pool,  log

        Transaction States | 1xnot started

 # MyISAM #####################################################

                 Key Cache | 8.0M

                  Pct Used | %

                 Unflushed | %

 # Security ###################################################

                     Users |  users,  anon,  w/o pw,  old pw

             Old Passwords |

 # Encryption #################################################

 mysql: [Warning] Using a password on the command line interface can be insecure.

 No keyring plugins found

 # Binary Logging #############################################

                   Binlogs |

                Zero-Sized |

                Total Size | .0k

             binlog_format | ROW

          expire_logs_days |

               sync_binlog |

                 server_id |

              binlog_do_db |

          binlog_ignore_db |

 # Noteworthy Variables #######################################

      Auto-Inc Incr/Offset | /

    default_storage_engine | InnoDB

                flush_time |

              init_connect |

                 init_file |

                  sql_mode | ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

          join_buffer_size | 128k

          sort_buffer_size | 128k

          read_buffer_size | 2M

      read_rnd_buffer_size | 16M

        bulk_insert_buffer | 0.00

       max_heap_table_size | 96M

            tmp_table_size | 96M

        max_allowed_packet | 4M

              thread_stack | 192k

                       log |

                 log_error | ./error.log

              log_warnings |

          log_slow_queries |

 log_queries_not_using_indexes | OFF

         log_slave_updates | ON

 # Configuration File #########################################

               Config File | /etc/my.cnf

 [mysqld]

 datadir                             = /var/lib/mysql

 socket                              = /var/lib/mysql/mysql.sock

 symbolic-links                      = 

 [mysqld_safe]

 log-error                           = /var/log/mariadb/mariadb.log

 pid-file                            = /var/run/mariadb/mariadb.pid

 [mysql]

 prompt                              = "\\u@\\h:\\p [\\d]\\>"

 user                                = zlm

 password                            = zlmzlm

 host                                = 192.168.56.100

 [client]

 user                                = zlm

 password                            = zlmzlm

 socket                              = /tmp/mysql3306.sock

 host                                = 192.168.56.100

 # Memory management library ##################################

 jemalloc is not enabled in mysql config for process with id

 # The End ####################################################

 [root@zlm1 :: ~]

 #

Execute it again while slave is working normally with option "--database" and "--save-samples"

 [root@zlm1 :: ~]

 #pt-mysql-summary --user=root --password=Passw0rd --host=localhost --databases zlm --save-samples=/root/zlm.rpl

 mysql: [Warning] Using a password on the command line interface can be insecure.

 # Percona Toolkit MySQL Summary Report #######################

               System time | -- :: UTC (local TZ: CEST +)

 # Instances ##################################################

   Port  Data Directory             Nice OOM Socket

   ===== ========================== ==== === ======

 # MySQL Executable ###########################################

 # Slave Hosts ################################################ //Now,it shows the slave's information.

 *************************** . row ***************************

  Server_id:

       Host:

       Port:

  Master_id:

 Slave_UUID: 2b199d1f-94df-11e8-ae46-080027de0e0e

 # Report On Port  ########################################

                      User | root@localhost

                      Time | -- :: (CEST)

                  Hostname | zlm1

                   Version | 5.7.-log MySQL Community Server (GPL)

                  Built On | linux-glibc2. x86_64

                   Started | -- : (up +::)

                 Databases |

                   Datadir | /data/mysql/mysql3306/data/

                 Processes |  connected,  running

               Replication | Is not a slave, has  slaves connected

                   Pidfile | mysql.pid (does not exist)

 # Processlist ################################################

   Command                        COUNT(*) Working SUM(Time) MAX(Time)

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

   Binlog Dump GTID

   Query

   Sleep                                                          

   User                           COUNT(*) Working SUM(Time) MAX(Time)

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

   monitor

   repl

   root                                                           

   Host                           COUNT(*) Working SUM(Time) MAX(Time)

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

   localhost

   zlm1

   zlm2                                                       

   db                             COUNT(*) Working SUM(Time) MAX(Time)

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

   NULL                                                       

   State                          COUNT(*) Working SUM(Time) MAX(Time)

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

   Master has sent all binlog to                               //This is the dump thread of master working in replicatoin.

   starting                                                       

 # Status Counters (Wait  Seconds) ##########################

 Variable                                Per day  Per second      secs

 Bytes_received

 Bytes_sent

 Com_admin_commands

 Com_select

 Com_set_option

 Com_show_binlogs

 Com_show_databases

 Com_show_engine_status

 Com_show_master_status

 Com_show_plugins

 Com_show_processlist

 Com_show_slave_hosts

 Com_show_slave_status

 Com_show_status

 Com_show_storage_engines

 Com_show_variables

 Connections

 Created_tmp_disk_tables

 Created_tmp_files

 Created_tmp_tables

 Flush_commands

 Handler_commit

 Handler_external_lock

 Handler_read_first

 Handler_read_key

 Handler_read_next

 Handler_read_rnd_next

 Handler_write

 Innodb_buffer_pool_bytes_data

 Innodb_buffer_pool_pages_flushed

 Innodb_buffer_pool_read_requests

 Innodb_buffer_pool_reads

 Innodb_buffer_pool_write_requests

 Innodb_data_fsyncs

 Innodb_data_read

 Innodb_data_reads

 Innodb_data_writes

 Innodb_data_written

 Innodb_dblwr_pages_written

 Innodb_dblwr_writes

 Innodb_log_writes

 Innodb_os_log_fsyncs

 Innodb_os_log_written

 Innodb_pages_created

 Innodb_pages_read

 Innodb_pages_written

 Innodb_rows_inserted

 Innodb_rows_read

 Innodb_num_open_files

 Innodb_available_undo_logs

 Key_read_requests

 Key_reads

 Open_table_definitions

 Opened_files

 Opened_table_definitions

 Opened_tables

 Queries

 Questions

 Select_scan

 Table_locks_immediate

 Table_open_cache_hits

 Table_open_cache_misses

 Threads_created

 Uptime

 # Table cache ################################################

                      Size |

                     Usage | %

 # 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 | Enabled

       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 | 0.0

                     Usage | %

          HitToInsertRatio | %

 # Semisynchronous Replication ################################ //The semi-sync replication is still not used.

                    Master | Disabled

                     Slave | Disabled

 # Schema ##################################################### //Because of the option of "--databases",it shows the detail of it.

   Database Tables Views SPs Trigs Funcs   FKs Partn

   zlm                                             

   Database InnoDB

   zlm           

   Database

   zlm     

              i   c

              n   h

              t   a

                  r

   Database === ===

   zlm           

 # Noteworthy Technologies ####################################

        Full Text Indexing | No

          Geospatial Types | No

              Foreign Keys | No

              Partitioning | No

        InnoDB Compression | No

                       SSL | No

      Explicit LOCK TABLES | No

            Delayed Insert | No

           XA Transactions | No

               NDB Cluster | No

       Prepared Statements | No

  Prepared statement count |

 # InnoDB #####################################################

                   Version | 5.7.

          Buffer Pool Size | 100.0M

          Buffer Pool Fill | %

         Buffer Pool Dirty | %

            File Per Table | ON

                 Page Size | 16k

             Log File Size |  * 100.0M = 300.0M

           Log Buffer Size | 8M

              Flush Method | O_DIRECT

       Flush Log At Commit |

                XA Support | ON

                 Checksums | ON

               Doublewrite | ON

           R/W I/O Threads |

              I/O Capacity |

        Thread Concurrency |

       Concurrency Tickets |

        Commit Concurrency |

       Txn Isolation Level | READ-COMMITTED

         Adaptive Flushing | ON

       Adaptive Checkpoint |

            Checkpoint Age |

              InnoDB Queue |  queries inside InnoDB,  queries in queue

        Oldest Transaction |  Seconds

          History List Len |

                Read Views |

          Undo Log Entries |  transactions,  total undo,  max undo

         Pending I/O Reads |  buf pool reads,  normal AIO,  ibuf AIO,  preads

        Pending I/O Writes |  buf pool ( LRU,  flush list,  page);  AIO,  sync,  log IO ( log,  chkp);  pwrites

       Pending I/O Flushes |  buf pool,  log

        Transaction States | 1xnot started

 # MyISAM #####################################################

                 Key Cache | 8.0M

                  Pct Used | %

                 Unflushed | %

 # Security ###################################################

                     Users |  users,  anon,  w/o pw,  old pw

             Old Passwords |

 # Encryption #################################################

 mysql: [Warning] Using a password on the command line interface can be insecure.

 No keyring plugins found

 # Binary Logging #############################################

                   Binlogs |

                Zero-Sized |

                Total Size | .0k

             binlog_format | ROW

          expire_logs_days |

               sync_binlog |

                 server_id |

              binlog_do_db |

          binlog_ignore_db |

 # Noteworthy Variables #######################################

      Auto-Inc Incr/Offset | /

    default_storage_engine | InnoDB

                flush_time |

              init_connect |

                 init_file |

                  sql_mode | ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

          join_buffer_size | 128k

          sort_buffer_size | 128k

          read_buffer_size | 2M

      read_rnd_buffer_size | 16M

        bulk_insert_buffer | 0.00

       max_heap_table_size | 96M

            tmp_table_size | 96M

        max_allowed_packet | 4M

              thread_stack | 192k

                       log |

                 log_error | ./error.log

              log_warnings |

          log_slow_queries |

 log_queries_not_using_indexes | OFF

         log_slave_updates | ON

 # Configuration File #########################################

               Config File | /etc/my.cnf

 [mysqld]

 datadir                             = /var/lib/mysql

 socket                              = /var/lib/mysql/mysql.sock

 symbolic-links                      = 

 [mysqld_safe]

 log-error                           = /var/log/mariadb/mariadb.log

 pid-file                            = /var/run/mariadb/mariadb.pid

 [mysql]

 prompt                              = "\\u@\\h:\\p [\\d]\\>"

 user                                = zlm

 password                            = zlmzlm

 host                                = 192.168.56.100

 [client]

 user                                = zlm

 password                            = zlmzlm

 socket                              = /tmp/mysql3306.sock

 host                                = 192.168.56.100

 # Memory management library ##################################

 jemalloc is not enabled in mysql config for process with id

 # The End ####################################################

 [root@zlm1 :: ~]

 #ls -l|grep rpl

 drwxr-xr-x    root root     Aug  : zlm.rpl

 [root@zlm1 :: ~]

 #cd zlm.rpl

 [root@zlm1 :: ~/zlm.rpl]

 #ls -l

 total

 -rw-r--r--  root root    Aug  : collect.err

 -rw-r--r--  root root   Aug  : innodb-status

 -rw-r--r--  root root    Aug  : mysql-config-file

 -rw-r--r--  root root     Aug  : mysql-databases

 -rw-r--r--  root root      Aug  : mysqld-executables

 -rw-r--r--  root root    Aug  : mysqld-instances

 -rw-r--r--  root root    Aug  : mysqldump

 -rw-r--r--  root root    Aug  : mysql-master-logs

 -rw-r--r--  root root    Aug  : mysql-master-status

 -rw-r--r--  root root   Aug  : mysql-plugins

 -rw-r--r--  root root    Aug  : mysql-processlist

 -rw-r--r--  root root      Aug  : mysql-roles

 -rw-r--r--  root root      Aug  : mysql-slave

 -rw-r--r--  root root    Aug  : mysql-slave-hosts

 -rw-r--r--  root root   Aug  : mysql-status

 -rw-r--r--  root root   Aug  : mysql-status-defer

 -rw-r--r--  root root      Aug  : mysql-users

 -rw-r--r--  root root  Aug  : mysql-variables

 -rw-r--r--  root root      Aug  : ndb-status

 //The directory of "zlm.rpl" contains individual collecting information of the connected MySQL server.You can check them for future use.
Summary
  • pt-mysql-summary is a report tool for collecting information of MySQL servers.
  • It's easy enough to use by merely specify several connection options.
  • It can tremendously increase the efficiency of summaring a large amount of MySQL servers.

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