Deleting Index kibana

Elastic Stack Kibana
1

Hello there,

Following log entry is appearing in kibana logs. I understand this is because of previous kibana versions. can I delete these indexes? Will deleting this affect my cluster?

log   [15:17:55.850] [error][eventLog][plugins] error setting existing ".kibana-event-log-7.8.1-000010" index aliases - error setting existing index aliases for index .kibana-event-log-7.8.1-000010 to is_hidden: illegal_state_exception: [illegal_state_exception] Reason: alias [.kibana-event-log-7.8.1] has is_hidden set to true on indices [.kibana-event-log-7.8.1-000010] but does not have is_hidden set to true on indices [.kibana-event-log-7.8.1-000011,.kibana-event-log-7.8.1-000012]; alias must have the same is_hidden setting on all indices
  log   [15:17:55.864] [error][eventLog][plugins] error setting existing ".kibana-event-log-7.9.2-000011" index aliases - error setting existing index aliases for index .kibana-event-log-7.9.2-000011 to is_hidden: illegal_state_exception: [illegal_state_exception] Reason: alias [.kibana-event-log-7.9.2] has is_hidden set to true on indices [.kibana-event-log-7.9.2-000011] but does not have is_hidden set to true on indices [.kibana-event-log-7.9.2-000013,.kibana-event-log-7.9.2-000012]; alias must have the same is_hidden setting on all indices
  log   [15:17:55.871] [error][eventLog][plugins] error setting existing ".kibana-event-log-7.13.3-000004" index aliases - error setting existing index aliases for index .kibana-event-log-7.13.3-000004 to is_hidden: illegal_state_exception: [illegal_state_exception] Reason: alias [.kibana-event-log-7.13.3] has is_hidden set to true on indices [.kibana-event-log-7.13.3-000004] but does not have is_hidden set to true on indices [.kibana-event-log-7.13.3-000002,.kibana-event-log-7.13.3-000003]; alias must have the same is_hidden setting on all indices
  log   [15:17:55.873] [error][eventLog][plugins] error setting existing ".kibana-event-log-7.9.2-000012" index aliases - error setting existing index aliases for index .kibana-event-log-7.9.2-000012 to is_hidden: illegal_state_exception: [illegal_state_exception] Reason: alias [.kibana-event-log-7.9.2] has is_hidden set to true on indices [.kibana-event-log-7.9.2-000012] but does not have is_hidden set to true on indices [.kibana-event-log-7.9.2-000013,.kibana-event-log-7.9.2-000011]; alias must have the same is_hidden setting on all indices
  log   [15:17:55.874] [error][eventLog][plugins] error setting existing ".kibana-event-log-7.9.2-000013" index aliases - error setting existing index aliases for index .kibana-event-log-7.9.2-000013 to is_hidden: illegal_state_exception: [illegal_state_exception] Reason: alias [.kibana-event-log-7.9.2] has is_hidden set to true on indices [.kibana-event-log-7.9.2-000013] but does not have is_hidden set to true on indices [.kibana-event-log-7.9.2-000012,.kibana-event-log-7.9.2-000011]; alias must have the same is_hidden setting on all indices
  log   [15:17:55.876] [error][eventLog][plugins] error setting existing ".kibana-event-log-7.13.3-000002" index aliases - error setting existing index aliases for index .kibana-event-log-7.13.3-000002 to is_hidden: illegal_state_exception: [illegal_state_exception] Reason: alias [.kibana-event-log-7.13.3] has is_hidden set to true on indices [.kibana-event-log-7.13.3-000002] but does not have is_hidden set to true on indices [.kibana-event-log-7.13.3-000004,.kibana-event-log-7.13.3-000003]; alias must have the same is_hidden setting on all indices
  log   [15:17:55.879] [error][eventLog][plugins] error setting existing ".kibana-event-log-7.8.1-000011" index aliases - error setting existing index aliases for index .kibana-event-log-7.8.1-000011 to is_hidden: illegal_state_exception: [illegal_state_exception] Reason: alias [.kibana-event-log-7.8.1] has is_hidden set to true on indices [.kibana-event-log-7.8.1-000011] but does not have is_hidden set to true on indices [.kibana-event-log-7.8.1-000010,.kibana-event-log-7.8.1-000012]; alias must have the same is_hidden setting on all indices
  log   [15:17:55.892] [error][eventLog][plugins] error setting existing ".kibana-event-log-7.8.1-000012" index aliases - error setting existing index aliases for index .kibana-event-log-7.8.1-000012 to is_hidden: illegal_state_exception: [illegal_state_exception] Reason: alias [.kibana-event-log-7.8.1] has is_hidden set to true on indices [.kibana-event-log-7.8.1-000012] but does not have is_hidden set to true on indices [.kibana-event-log-7.8.1-000010,.kibana-event-log-7.8.1-000011]; alias must have the same is_hidden setting on all indices
  log   [15:17:55.900] [error][eventLog][plugins] error setting existing ".kibana-event-log-7.13.3-000003" index aliases - error setting existing index aliases for index .kibana-event-log-7.13.3-000003 to is_hidden: illegal_state_exception: [illegal_state_exception] Reason: alias [.kibana-event-log-7.13.3] has is_hidden set to true on indices [.kibana-event-log-7.13.3-000003] but does not have is_hidden set to true on indices [.kibana-event-log-7.13.3-000004,.kibana-event-log-7.13.3-000002]; alias must have the same is_hidden setting on all indices

Thanks,
Akhil Patel

2

You can delete it.

I just deleted bunch of .kibana index just make sure you keep your current version index as is.

you can check aliases and _cat/aliases and see where your existing .kibana is pointing to (just incase if you want to check)

3

Thanks Sachin for the information!