# Run a task only on remote host if this hosts a specific database **URL:** \ **Category:** Ansible Project\ **Created:** [December 9, 2018, 4:06pm UTC](https://forum.ansible.com/t/run-a-task-only-on-remote-host-if-this-hosts-a-specific-database/29229 "2018-12-09T16:06:28Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Christian\_Marquardt](https://avatars.discourse-cdn.com/v4/letter/c/e480ec/32.png) [@Christian\_Marquardt](https://forum.ansible.com/u/Christian_Marquardt)\ **Post date:** [December 9, 2018, 4:06pm UTC](https://forum.ansible.com/t/run-a-task-only-on-remote-host-if-this-hosts-a-specific-database/29229/1 "2018-12-09T16:06:28Z")
Hello, I’m looking for ideas on how I can realize the following: I wan’t to change some database parameters on a specific database. I’ve several ideas but I’m not sure how to realize this. For example: - Having local facts defined on remote machine containing a list of databases running on this host - Having local list of host-database-relationship on the ansible host itself Does anyone of you have an better idea? thanks Christian ---
**Author:** ![Andy\_Smith](https://avatars.discourse-cdn.com/v4/letter/a/898d66/32.png) [@Andy\_Smith](https://forum.ansible.com/u/Andy_Smith)\ **Post date:** [December 9, 2018, 5:15pm UTC](https://forum.ansible.com/t/run-a-task-only-on-remote-host-if-this-hosts-a-specific-database/29229/2 "2018-12-09T17:15:06Z")
Hi Christian, > - Having local facts defined on remote machine containing a list of > databases running on this host > - Having local list of host-database-relationship on the ansible host itself > > Does anyone of you have an better idea? If I was going to have multiple tasks interacting with the list of databases I think I would go the fact route. Otherwise I would probably run a command that listed the databases, register it in a variable and then do things in later tasks based on that variable. Cheers, Andy