m17kea commented on issue #15942:
URL: https://github.com/apache/druid/issues/15942#issuecomment-2511718993

   The issue is caused because of a change in date format in the leader 
election config maps that are stored in kubernetes. The steps to fix are as 
follows: 
   
   ```kubectl get cm -n <druid namespace>```
   
   you should see 2 config maps of the form: 
   
   ```
   <cluster-identifier>-leaderelection-coordinator
   <cluster-identifier>-leaderelection-overlord
   ```
   
   verify the date from your error message appears in the annotations:
   
   ```
   kubectl describe cm <cluster-identifier>-leaderelection-coordinator -n 
<druid namespace>
   kubectl describe cm <cluster-identifier>-leaderelection-overlord -n <druid 
namespace>
   ```
   
   remove these by:
   
   ```
   kubectl delete cm <cluster-identifier>-leaderelection-coordinator -n <druid 
namespace>
   kubectl delete cm <cluster-identifier>-leaderelection-overlord -n <druid 
namespace>
   ```
   
   These will be recreated by the services whcih will then successfully start.


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