All Shards Failed Issue

org.elasticsearch.xpack.monitoring.exporter.ExportException: [.monitoring-es-7-2019.05.09] IndexCreationException[failed to create index [.monitoring-es-7-2019.05.09]]; nested: ValidationException[Validation Failed: 1: this action would add [2] total shards, but this cluster currently has [996]/[1000] maximum shards open;]

Looks like you have to many shards for 1 node.
The best way would be to reduce your Shards. temporary you can incress the 1000 Shards limit, see:

I recommend to read this Article:


What is the output of:

GET /_cat/nodes?v
GET /_cat/health?v
GET /_cat/indices?v 

If some outputs are too big, please share them on and link them here.

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