# Setting up galera arbitrator via the pxc operator

**URL:** <https://forums.percona.com/t/setting-up-galera-arbitrator-via-the-pxc-operator/36459>\
**Category:** Percona Operator for MySQL\
**Created:** [January 31, 2025, 4:47pm UTC](https://forums.percona.com/t/setting-up-galera-arbitrator-via-the-pxc-operator/36459 "2025-01-31T16:47:35Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Simeon\_Zaharici](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/simeon_zaharici/32/8335_2.png) [@Simeon\_Zaharici](https://forums.percona.com/u/Simeon_Zaharici)\
**Post date:** [January 31, 2025, 4:47pm UTC](https://forums.percona.com/t/setting-up-galera-arbitrator-via-the-pxc-operator/36459/1 "2025-01-31T16:47:35Z")

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Hey guys,

Is it possible to setup percona xtradb clusters with arbitrators using the pxc operator ? I would like to set this up in mysql 5.7 but did not find any related settings in the pxc-db helm chart values file.

Thanks

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**Author:** ![matthewb](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/matthewb/32/34_2.png) [@matthewb](https://forums.percona.com/u/matthewb)\
**Post date:** [January 31, 2025, 5:14pm UTC](https://forums.percona.com/t/setting-up-galera-arbitrator-via-the-pxc-operator/36459/2 "2025-01-31T17:14:04Z")

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> [@Simeon\_Zaharici](#):
>
> percona xtradb clusters with arbitrators using the pxc operator

It does not look like this is something we support. Using the arbitrator, in a way, defeats the purpose of running in K8S. Having actual data nodes helps ensure high-availability. If you run 1 data node + 2 arbitrators, the loss of that 1 node means cluster is down.

> [@Simeon\_Zaharici](#):
>
> to set this up in mysql 5.7

We don’t support this any more. 5.7 is dead for 2+ years. Please use modern MySQL 8.0 or newer.

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**Author:** ![reddy\_nishanth](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/reddy_nishanth/32/21004_2.png) [@reddy\_nishanth](https://forums.percona.com/u/reddy_nishanth)\
**Post date:** [July 3, 2025, 6:20am UTC](https://forums.percona.com/t/setting-up-galera-arbitrator-via-the-pxc-operator/36459/3 "2025-07-03T06:20:02Z")

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@matthewb Does pxc operator support, running 1 arbitrator and 2 data nodes? I couldnt’ find the option in cr.yaml

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**Author:** ![Slava\_Sarzhan](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/slava_sarzhan/32/3196_2.png) [@Slava\_Sarzhan](https://forums.percona.com/u/Slava_Sarzhan)\
**Post date:** [July 3, 2025, 9:13am UTC](https://forums.percona.com/t/setting-up-galera-arbitrator-via-the-pxc-operator/36459/4 "2025-07-03T09:13:26Z")

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@reddy_nishanth operator does not support deployment of an arbitrator at all.