# pt-table-checksum is not cheking all tables **URL:** \ **Category:** Percona Toolkit\ **Created:** [June 7, 2013, 2:00am UTC](https://forums.percona.com/t/pt-table-checksum-is-not-cheking-all-tables/2743 "2013-06-07T02:00:02Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![HTF1](https://avatars.discourse-cdn.com/v4/letter/h/df788c/32.png) [@HTF1](https://forums.percona.com/u/HTF1)\ **Post date:** [June 7, 2013, 2:00am UTC](https://forums.percona.com/t/pt-table-checksum-is-not-cheking-all-tables/2743/1 "2013-06-07T02:00:02Z")
Hi, It seems that pt-table-checksum is not checking all tables, details: I’m using replication filters: replicate-wild-do-table = test\_slave.% replicate-rewrite-db = test-\>test\_slave - so I’ve created symlink as follow: ln -s /var/lib/mysql/test /var/lib/mysql/test\_slave chown mysql:mysql /var/lib/mysql/test\_slave Command: pt-table-checksum --host=localhost --databases=test --max-load=Threads\_connected:25 --no-check-replication-filters mysql\> SELECT COUNT(_) FROM information\_schema.TABLES WHERE TABLE\_SCHEMA = ‘test\_slave’; ±---------+ | COUNT(_) | ±---------+ | 145 | ±---------+ 1 row in set (0.00 sec) mysql\> SELECT COUNT(_) FROM percona.checksums; ±---------+ | COUNT(_)| ±---------+ | 40| ±---------+ 1 row in set (0.00 sec) I’m aware that checksums are done based in part on a unique value and there is ~10 tables with no primary keys and unique keys however is there any reason why only 40 tables are checked? ---
**Author:** ![niljoshi](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/niljoshi/32/16889_2.png) [@niljoshi](https://forums.percona.com/u/niljoshi)\ **Post date:** [June 11, 2013, 4:43am UTC](https://forums.percona.com/t/pt-table-checksum-is-not-cheking-all-tables/2743/2 "2013-06-11T04:43:53Z")
Hi, Can we have the full output of pt-table-checksum command? It might help to identify the issue. Thanks.