# Graylog first problem's

**URL:** <https://community.graylog.org/t/graylog-first-problems/6752>\
**Category:** Graylog Central (peer support)\
**Created:** [September 7, 2018, 9:00pm UTC](https://community.graylog.org/t/graylog-first-problems/6752 "2018-09-07T21:00:29Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![jtkarvo](https://avatars.discourse-cdn.com/v4/letter/j/43a26b/32.png) [@jtkarvo](https://community.graylog.org/u/jtkarvo)\
**Post date:** [September 9, 2018, 12:12pm UTC](https://community.graylog.org/t/graylog-first-problems/6752/2 "2018-09-09T12:12:42Z")

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you have two problems:

- Deflector problem: [https://community.graylog.org/t/how-to-fix-deflector-exists-as-an-index-and-is-not-an-alias-warning/2826](https://community.graylog.org/t/how-to-fix-deflector-exists-as-an-index-and-is-not-an-alias-warning/2826)

- Yellow cluster: do you have number of replicas 1 for the graylog index set (System/Indices menu), but only one ES server. The number of replicas must be at most the number of ES servers minus one ( 1 replica means that you need 2 servers: one for the original, the other for the replica).

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