Kibana 7.15.x [error][savedobjectsservice] [.kibana] Action failed with 'Request timed out'. Retrying attempt 报错处理。

1、报错

近日在windows平台使用7.15.2 的elasticsearch 和kibana 时候，在开启es cmd窗口后，kibana无法启动，报错误下。

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、原因

原因其实很简单，就是因为不小心在es启动的cmd窗口中鼠标不小心选中了任何字符串都会导致es的输出受阻，进而导致kibana启动失败。如下图所示。

3、解决方法

最简单的方法当是取消选择即可，通过回车、esc键都可以，然后再重新启动kibana。当然这更推荐将es内置为windows的系统服务，以避免类似的问题。这里采用es官方截图，操作如下所示。