pt-table-checksum和pt-table-sync用法

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master ip:192.168.136.135

slave ip:192.168.136.136

/*************************************************** pt-table-checksum *********************************/

/*************************************************** autocommit = 1 ***********************************/

SELECT db, tbl, SUM(this_cnt) AS total_rows, COUNT(*) AS chunks
FROM percona.checksums
WHERE (
master_cnt <> this_cnt
OR master_crc <> this_crc
OR ISNULL(master_crc) <> ISNULL(this_crc))
GROUP BY db, tbl;

GRANT SELECT, PROCESS, SUPER, REPLICATION SLAVE,CREATE,DELETE,INSERT,UPDATE ON *.* TO 'percona'@'%' identified by 'Percona.0101';
GRANT SELECT, PROCESS, SUPER, REPLICATION SLAVE ON *.* TO 'percona'@'%';
flush privileges;

set autocommit=on;

刷新checksums：

pt-table-checksum --nocheck-replication-filters --no-check-binlog-format --replicate=percona.checksums --recursion-method=processlist --databases=test h=192.168.136.135,u=percona,p=Percona.0101,P=13306

显示差异数据：

pt-table-checksum --nocheck-replication-filters --no-check-binlog-format --replicate=percona.checksums --replicate-check-only --databases=test h=192.168.136.135,u=percona,p=Percona.0101,P=13306 --recursion-method=processlist

replicate-check-only : 当DIFFS为默认0时,需要将replicate-check-only添加上.

pt-table-checksum -uroot -p123456 --create-replicate-table --no-check-binlog-format

pt-table-checksum -uroot -p123456 --no-check-binlog-format --databases=flow,jlp --tables=flow.Rec_LineCommand_bak,jlp.Sys_ModalCfg

/*************************************************** pt-table-sync ************************************/

e.g:

Sync   on 192.168.44.129 to 192.168.44.128:

/************************************************* 表有主键或只唯一性索引 **********************************/

pt-table-sync --execute h=host1,D=db,t=tbl h=host2

e.g:

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

cmd | option | checksum | master-host,db,table | slave-host

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

pt-table-sync --print --replicate=percona.checksums h=192.168.136.135,P=13306,u=percona,p=Percona.0101,D=test,t=m h=192.168.136.136

修复数据

pt-table-sync --execute --replicate=percona.checksums h=192.168.136.135,P=13306,u=percona,p=Percona.0101,D=test,t=m h=192.168.136.136

/************************************************* 表无主键或只唯一性索引 **********************************/

pt-table-sync --replicate=percona.checksums no-check-slave h=192.168.136.135,P=13306,u=percona,p=Percona.0101,D=test,t=t01 h=192.168.136.136 --print

pt-table-sync --no-check-slave h=192.168.136.135,P=13306,u=percona,p=Percona.0101,D=test,t=t01 h=192.168.136.136,P=13306,u=percona,p=Percona.0101,D=test,t=t01 --print

pt-table-sync --no-check-slave h=192.168.136.135,P=13306,u=percona,p=Percona.0101,D=test,t=t01 h=192.168.136.136,P=13306,u=percona,p=Percona.0101,D=test,t=t01 --execute

e.g:Make slave1 have the same data as its replication master:

pt-table-sync -uroot -p123456 --execute --execute --sync-to-master 192.168.44.128

e.g:Resolve differences that pt-table-checksum found on all slaves of master1:

pt-table-sync -uroot -p123456 --execute --replicate percona.checksums 192.168.44.129