[Solved] Kibana 7.15.x [error][savedobjects-service] [.kibana] Action failed with ‘Request timed out’. Retrying attempt

1. Error reporting

Recently, when elasticsearch and kibana of 7.15.2 were used on the windows platform, kibana failed to start after opening the ES CMD window and reported an error.

log [09:03:50.365] [error][savedobjects-service] [.kibana] Action failed with 'Request timed out'. Retrying attempt 1 in 2 seconds.
log [09:03:50.371] [info][savedobjects-service] [.kibana] UPDATE_TARGET_MAPPINGS -> UPDATE_TARGET_MAPPINGS. took: 120043ms.
log [09:03:50.410] [error][savedobjects-service] [.kibana_task_manager] Action failed with 'Request timed out'. Retrying attempt 1 in 2 seconds.
log [09:03:50.412] [info][savedobjects-service] [.kibana_task_manager] UPDATE_TARGET_MAPPINGS -> UPDATE_TARGET_MAPPINGS. took: 120059ms.
log [09:05:52.415] [error][savedobjects-service] [.kibana] Action failed with 'Request timed out'. Retrying attempt 2 in 4 seconds.
log [09:05:52.416] [info][savedobjects-service] [.kibana] UPDATE_TARGET_MAPPINGS -> UPDATE_TARGET_MAPPINGS. took: 122050ms.
log [09:05:52.462] [error][savedobjects-service] [.kibana_task_manager] Action failed with 'Request timed out'. Retrying attempt 2 in 4 seconds.
log [09:05:52.463] [info][savedobjects-service] [.kibana_task_manager] UPDATE_TARGET_MAPPINGS -> UPDATE_TARGET_MAPPINGS. took: 122052ms.
log [09:07:56.471] [error][savedobjects-service] [.kibana] Action failed with 'Request timed out'. Retrying attempt 3 in 8 seconds.
log [09:07:56.472] [info][savedobjects-service] [.kibana] UPDATE_TARGET_MAPPINGS -> UPDATE_TARGET_MAPPINGS. took: 124055ms.
log [09:07:56.517] [error][savedobjects-service] [.kibana_task_manager] Action failed with 'Request timed out'. Retrying attempt 3 in 8 seconds.
log [09:07:56.518] [info][savedobjects-service] [.kibana_task_manager] UPDATE_TARGET_MAPPINGS -> UPDATE_TARGET_MAPPINGS. took: 124055ms.

2. Cause

In fact, the reason is very simple. If you accidentally select any string in the CMD window started by es, the output of es will be blocked, resulting in kibana startup failure. As shown in the figure below.

3. Solution

The simplest way is to cancel the selection, press enter and ESC, and then restart kibana. Of course, it is more recommended to build es into the system service of windows to avoid similar problems. Here is the official screenshot of ES, and the operation is as follows.

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