Most used/useful plugins for ElasticSearch

What would be some of the most used/useful plugins of ElasticSearch.

I see that some plugins do not yet support 2.x ES. At least for segmentspy, inquisitor I don’t see a 2.x support in their github repos.

I wonder if Bigdesk is considered a useful tool for Performance monitoring.

It looks promising. Unfortunately, it doesn’t support ES 2.x. There is already an issue logged for the same:

Yup, I think it supports up to 1.3.x or 1.7.x. Really like Bigdesk though.

i think HQ is also good tool for monitoring, management
And 2.x ES is supported..

Yes, it is. But for some reasons I don't see any number in the GC part of Node Diagnostics