# Runtime “warn once” strategy

**URL:** <https://forum.elixirforum.com/t/runtime-warn-once-strategy/26222>\
**Category:** Questions\
**Tags:** ex\_cldr\
**Created:** [October 21, 2019, 5:01am UTC](https://forum.elixirforum.com/t/runtime-warn-once-strategy/26222 "2019-10-21T05:01:38Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![dimitarvp](https://forum.elixirforum.com/user_avatar/forum.elixirforum.com/dimitarvp/32/38664_2.png) [@dimitarvp](https://forum.elixirforum.com/u/dimitarvp)\
**Post date:** [October 22, 2019, 2:15pm UTC](https://forum.elixirforum.com/t/runtime-warn-once-strategy/26222/6 "2019-10-22T14:15:59Z")

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Good solution. 👍

Changing `persistent_term` value is, I hear, expensive, but since it’s done very rarely in this scenario, the added peace of mind is very worth it.

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