Performance dropping every 10 min, is it GC?

Elastic Stack Elasticsearch
1

Hi

Sorry for the noob post, I'm diving into ES and runing a preliminary test. I can see a consistent performance drop every 10 minutes in both indexing and searching (monitoring with marvel). Server has 32GB RAM / 16 GB Heap for ES. No other settings differ from defaults. Can I presume is this the GC?

snip_20160121092042.png947×538 38.7 KB

Is there a way to monitor when the GC is happening? Any other possible explanation?

PS: Centos 7.1, SAN disk, kvm virtualized environment in a dedicated server, no other processes running.

2

Check your logs, it'll state if it's GC.

3

I can't see any clue that GC is happening in the logs.

4

Then that's not it :slight_smile:

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