How to find failed shards?

Elastic Stack Kibana
1

Hello,
I am getting error Courier fetch: 10 shard out of 211.

I want to know which are those failed shards/indexes

please guide me on this.

thanks
Sunil.

2

The logs should say something like "shard [index_name][shard_number] failed".

3

Thank you Patrick,
I found it in elasticsearch logs.

4

You can also use the _cat APIs - https://www.elastic.co/guide/en/elasticsearch/reference/current/cat.html