# Unable to start keycloak 17.0.0 cache with kubernetes stack

**URL:** <https://forum.keycloak.org/t/unable-to-start-keycloak-17-0-0-cache-with-kubernetes-stack/13580>\
**Category:** Configuring the server\
**Created:** [February 14, 2022, 8:39am UTC](https://forum.keycloak.org/t/unable-to-start-keycloak-17-0-0-cache-with-kubernetes-stack/13580 "2022-02-14T08:39:51Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![g10f](https://yyz2.discourse-cdn.com/free1/user_avatar/forum.keycloak.org/g10f/32/1125_2.png) [@g10f](https://forum.keycloak.org/u/g10f)\
**Post date:** [February 14, 2022, 8:39am UTC](https://forum.keycloak.org/t/unable-to-start-keycloak-17-0-0-cache-with-kubernetes-stack/13580/1 "2022-02-14T08:39:51Z")

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With  
ENV KC\_CACHE=ispn  
ENV KC\_CACHE\_STACK=kubernetes  
Starting keycloak-x docker image I get

ERROR: dns\_query can not be null or empty.

On keycloak 16.1.1 it worked. Any hints?  
Thank you.

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**Author:** ![g10f](https://yyz2.discourse-cdn.com/free1/user_avatar/forum.keycloak.org/g10f/32/1125_2.png) [@g10f](https://forum.keycloak.org/u/g10f)\
**Post date:** [February 14, 2022, 7:58pm UTC](https://forum.keycloak.org/t/unable-to-start-keycloak-17-0-0-cache-with-kubernetes-stack/13580/2 "2022-02-14T19:58:59Z")

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`JAVA_OPTS_APPEND=-Djgroups.dns.query=keycloak-headless`  
when using the helm chart from codecentric

solved the problem

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**Author:** ![chhaya](https://avatars.discourse-cdn.com/v4/letter/c/b5a626/32.png) [@chhaya](https://forum.keycloak.org/u/chhaya)\
**Post date:** [September 12, 2022, 12:45pm UTC](https://forum.keycloak.org/t/unable-to-start-keycloak-17-0-0-cache-with-kubernetes-stack/13580/3 "2022-09-12T12:45:22Z")

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Hello @g10f, how can I get the keycloak-headless FQDN?