# pt-table-checksum ignore-host option?

**URL:** <https://forums.percona.com/t/pt-table-checksum-ignore-host-option/3376>\
**Category:** Percona Toolkit\
**Created:** [April 1, 2014, 9:12pm UTC](https://forums.percona.com/t/pt-table-checksum-ignore-host-option/3376 "2014-04-01T21:12:57Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![pkringle](https://avatars.discourse-cdn.com/v4/letter/p/439d5e/32.png) [@pkringle](https://forums.percona.com/u/pkringle)\
**Post date:** [April 1, 2014, 9:12pm UTC](https://forums.percona.com/t/pt-table-checksum-ignore-host-option/3376/1 "2014-04-01T21:12:57Z")

</div>

I have a 5.0 database(with 2 x 5.0 replicants) slaving to a 5.1 (blackhole) database which relays to a 5.5 database. pt-table-checksum reports checksum issues on these 5.1 and 5.5 databases. This makes sense. But I would like to be able to tell the script to ignore these hosts in it’s check and just look over the 5.0 servers.

---

<div class="post-metadata">

**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:** [April 22, 2014, 1:19am UTC](https://forums.percona.com/t/pt-table-checksum-ignore-host-option/3376/2 "2014-04-22T01:19:43Z")

</div>

Hi,

Can you provide the command line that how you are running pt-table-checksum? You might use recursion-method with DNS to check specific hosts and not all.  
[url][pt-table-checksum — Percona Toolkit Documentation](http://www.percona.com/doc/percona-toolkit/2.2/pt-table-checksum.html#cmdoption-pt-table-checksum--recursion-method%5B/url%5D)