pt 2430pc

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Percona Toolkit Study (ii) (Pt-config-diff,pt-deadlock-logger,pt-diskstats)

Pt-config-diffCompare MySQL configuration files and server parametersExample:PT-CONFIG-DIFF/ETC/MY.CNF h=192.168.53.11--user=root--password=123456--socket=/tmp/mysql.sockpt-config-dirr/etc /my.cnf/etc/my_slave.cnfThe contents are as follows:21configdifferencesvariable /etc/my.cnf m11============================= ==============================================event_scheduler OFF onexpire_logs_ days21 14innodb_io_capacity1200 800innodb_max_dirty_pages.

Using Pt-table-checksum and Pt-table-sync to verify replication consistency

First, IntroductionPt-table-checksum is one of the Percona-toolkit series tools that can be used to detect the consistency of the data in the master and from the database. The principle is to run on the Main library, checksum the synchronized tables and record them. It then compares the checksum of the main table to determine whether the data is consistent . The detection process in blocks, for large tables can be differentiated into multiple blocks, so as to avoid the lock table (according to a

MySQL master-slave data consistency check based on Pt-table-checksum and Pt-table-sync

Tags: MySQL consistency checkThe master-slave architecture based on the principle of MySQL logical replication often results in inconsistent master-slave data due to some reasons, which causes the master-slave copy process to interrupt the error. Instead of checking the status of the IO thread and the SQL thread from the library's show Slave status\g on a regular basis, you can only confirm that the current replication is normal, but cannot confirm that the current master-slave data is consisten

Detailed description of replication consistency with pt-table-checksum and Pt-table-sync checks

First, IntroductionPt-table-checksum is one of the Percona-toolkit series tools that can be used to detect the consistency of the data in the master and from the database. The principle is to run on the main library, checksum the synchronized tables and record them. It then compares the checksum of the main table to determine whether the data is consistent. The detection process in blocks, for large tables can be differentiated into multiple blocks, so as to avoid the lock table (according to a

Pt-table-checksum check and pt-table-sync repair data, checksum Check Tool

Pt-table-checksum check and pt-table-sync repair data, checksum Check Tool1. Download the ToolkitLog on to the website and download the corresponding toolkit https://www.percona.com/downloads/percona-toolkit/LATEST/2. Installation(1) yum installation: sudo yum install http://www.percona.com/downloads/percona-release/redhat/0.1-4/percona-release-0.1-4.noarch.rpmyum list | grep percona-toolkit The result set

MySQL slow query (ii)-Pt-query-digest detailed slow query log pt-query-digest slow log analysis

Essays-66 Articles-0 comments-MySQL slow query (ii)-Pt-query-digest detailed slow query log one, Introduction Pt-query-digest is a tool for analyzing MySQL slow query, it can analyze Binlog, Gene RAL Log, Slowlog, can also be analyzed via showprocesslist or MySQL protocol data captured by Tcpdump. The analysis results can be exported to a file, the analysis process is the parameters of the query statement,

Percona-Toolkit series: Pt-table-checksum and Pt-table-sync

Version: Pt-table-checksum 2.1.5, Pt-table-sync 2.1.5 Pt-table-checksum and Pt-table-sync are twins. Pt-table-checksum is used to detect data synchronization between the master and slave tables. Pt-table-sync is used to synchron

Use pt-query-digest to find the SQL statement that is not suitable, pt-query-digestsql

Use pt-query-digest to find the SQL statement that is not suitable, pt-query-digestsql Overview of pt-query-digest1. Indexes can be executed more quickly, but there must be unreasonable indexes. If you want to find those indexes that are not very suitable and optimize them before they become problems, you can use the pt

Pt-table-checksum, Pt-table-sync Check master-Slave database consistency

A Download and install Toolshttp://www.percona.com/downloads/percona-toolkit/Currently the latest version is percona-toolkit_2.2.12.tar.gzAfter uploading to the server, unzip and set to environment variablesAdd path to MySQL user's environment variable fileVI. bash_profileExport path= $PATH:/mysqldata/soft/percona-toolkit-2.2.12/bin Two. Use the Pt-table-checksum command to find inconsistent data The primary concern is diffs, 0 is consistent, 1 is in

MySQL -- pt-osc tool learning, mysql -- pt-osc Tool

MySQL -- pt-osc tool learning, mysql -- pt-osc Tool ##=================================================== ====================== ##Pt-osc workflow:1. Check whether the table has a primary key or a unique index and whether a trigger exists.2. Check the TABLE structure of the modified TABLE, create a temporary TABLE, and execute the alter table statement on the new

Introduction to common killing process parameters of pt-kill and parameters of pt-kill

Introduction to common killing process parameters of pt-kill and parameters of pt-kill Pt-kill is an excellent tool for kill MySQL connection and is part of percona toolkit, when the maximum number of connections is exceeded due to a large number of idle connections and a problematic SQL statement causes a high mysql load, you must kill some connections. This too

Use pt-table-checksum and pt-table-sync to fix Master-slave data inconsistency in mysql.

often use some tools provided by percona-toolkit. By the way, I will simply record them. 1. About pt-table-checksum and pt-table-sync? Pt-table-checksum and pt-table-sync are some useful performance diagnostic tools provided by percona for mysql DBAs. In addition, XtraBackup is often used for backup, this physical ba

What is the difference between pt,pt and BT?

A: PT (Private Tracker) download is actually a BT download, but there are two obvious improvements: one is the private small-scale download, the second is to carry out traffic statistics, based on the amount of upload to determine your permissions.When BT downloads, The software will analyze the. torrent seed file to get the tracker address, and then connect to the tracker server, the server returns the IP of the other downloader, the downloader then

Reproduced PT Build Station source code (PT Server Original Program) summary (20100815 Update)

TbsourceOfficialWebsite (expired): http://www.tbsource.com/: http://www.ipv6bbs.com/thread-5152-1-1.htmlUse site: ccfbitsProgram Introduction: Tbsource should be regarded as the oldest PT source, on December 1, 2005 released an alpha version, the code stopped the update, it is released under the GPL protocol, can implement PHP database TrackR, butForum function not, PHP script is relatively easy to read, the domestic current Nexus project is also base

MySQL pt-table-checksum and Pt-table-sync checksum repair master-Slave consistency

Tags: statement replicat specify element test load diff database family technology"Pt-table-checksum"Pt-table-checksum is one of the Percona-toolkit series tools that can be used to detect the consistency of the data in the master and from the database. The principle is to run on the main library, checksum the synchronized tables and record them. It then compares the checksum of the main table to determine

Using pt-heartbeat to monitor the replication latency of MySQL, pt-heartbeatmysql

Using pt-heartbeat to monitor the replication latency of MySQL, pt-heartbeatmysql Pt-heartbeat During database master-slave replication, whether the replication status and data delay are normal is a critical indicator. How can we monitor it? Pt-heartbeat is a centralized tool developed by PERCONA to monitor replication

Use pt-kill to kill the connection method according to certain rules, pt-killkill

Use pt-kill to kill the connection method according to certain rules, pt-killkill Pt-kill is an excellent tool for kill MySQL connection and is part of percona toolkit, when the maximum number of connections is exceeded due to a large number of idle connections and a problematic SQL statement causes a high mysql load, you must kill some connections. This tool is

Verify MySQL master-slave consistency (pt-table-checksum & amp; pt-table-sync)

Verify MySQL master-slave consistency (pt-table-checksum pt-table-sync) Percona-toolkit-2.2.8-1.noarch.rpm has two tools to verify MySQL master-slave Data ConsistencyInstalling tookkit requires some dependent packagesYum install perl-DBI perl-DBD-MySQL perl-IO-Socket-SSL perl-Time-HiRes-y Lab Environment Initialize lab data on MasterCreate database mvbox;Use mvbox; Create table test (id int primary key, n

Use of Pt-table-checksum and pt-heartbeat

I. Pt-table-checksum1. Create a new account on both master and slaveGRANT SELECT, PROCESS, SUPER, REPLICATION SLAVE on * * to ' checksum ' @ ' 192.168.1.% ' identified by ' xxx ';2. Our Lord new Percona database3. Give all the permissions of the checksum account to the Percona database ( It is not required, it is already super privilege )GRANT all privileges on ' Percona '. * to ' checksum ' @ ' 192.168.118.126 ' with GRANT OPTION;4. The Lord performs

Verify MySQL master-slave consistency (pt-table-checksum & amp; pt-table-s_MySQL

Verify MySQL master-slave consistency (pt-table-checksumamp; amp; pt-table-sync) percona-toolkit-2.2.8-1.noarch.rpm has two tools to verify MySQL master-slave data consistency Installing tookkit requires some dependent packages Yum install perl-DBI perl-DBD-MySQL perl-IO-Socket-SSL perl-Time-HiRes-y Lab environment Initialize lab data on Master Create database mvbox; Use mvbox; Create table test (

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