How to inspect write queue

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1

I'm on 6.8... my write queues are filling up and I don't really know, how to inspect their contents. I have even stopped Logstashes, but something is constantly writing. Does recovery use the write queues?

It's not consistent across all data nodes, I have some that are almost idle.

Any help would be appreciated!

2

In the end I used the tasks API and the hot_threads API to see what's going on.

Recoveries indeed contributed to the queues filling up, stopping it then later limiting the recovery speed help alleviating the problem.

End of thread.