# Reflection refreshing hourly?

**URL:** <https://community.dremio.com/t/reflection-refreshing-hourly/2919>\
**Category:** Uncategorized\
**Created:** [March 7, 2019, 5:01pm UTC](https://community.dremio.com/t/reflection-refreshing-hourly/2919 "2019-03-07T17:01:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![summersmd](https://avatars.discourse-cdn.com/v4/letter/s/f9ae1b/32.png) [@summersmd](https://community.dremio.com/u/summersmd)\
**Post date:** [March 7, 2019, 5:01pm UTC](https://community.dremio.com/t/reflection-refreshing-hourly/2919/1 "2019-03-07T17:01:37Z")

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I’m running Dremio 3.1.1 (Community Edition) and it looks like our Reflections are automatically refreshing hourly. At least that’s what I’m seeing in the jobs history. How can I change this schedule to be once daily?

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**Author:** ![ben](https://sea2.discourse-cdn.com/flex020/user_avatar/community.dremio.com/ben/32/1367_2.png) [@ben](https://community.dremio.com/u/ben)\
**Post date:** [March 7, 2019, 5:59pm UTC](https://community.dremio.com/t/reflection-refreshing-hourly/2919/2 "2019-03-07T17:59:24Z")

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Hi @summersmd,

The reflections refresh interval can be set at the source level or the individual physical dataset level. See: [https://docs.dremio.com/acceleration/updating-reflections.html#refresh-policy-refresh-interval-and-expiration](https://docs.dremio.com/acceleration/updating-reflections.html#refresh-policy-refresh-interval-and-expiration)

You can select a source you’ve configured (like Elasticsearch or HDFS for example), or a specific dataset, and then click on the cog wheel icon to edit these settings from the UI:

 ![43%20AM](https://us1.discourse-cdn.com/flex020/uploads/dremio/original/2X/1/160ee197ae4dee800725b56cdc67197c5f90260d.png)

These will refresh the downstream reflections based on these sources or tables. The refresh intervals set on individual tables/datasets within a source, will override those set at the source level.