GCoverhead

(Vinay Govinda Raju) #1

Hi,

I could see below warning message in my ES Logs.

[2017-04-07T13:34:15,260][WARN ][o.e.m.j.JvmGcMonitorService] [FBp7aLX] [gc][5157] overhead, spent [1s] collecting in the last [1.1s]

Also in our settings for ES, the refresh interval for document is set as 1s.
So because of the above warning does it mean it takes 1.1s+1s = 2.1 s to index a document?
Can someone explain more about this GC overhead and how to overcome this?

(Christian Dahlqvist) #2

Which version are you using? How much heap does you nodes have assigned? What is the output of the cluster health API?

(Vinay Govinda Raju) #3

We are using ES 5.5.0 and we have 5 nodes.
Cluster status is yellow.

(Christian Dahlqvist) #4

What about my other questions?

(Vinay Govinda Raju) #5

Hi the heap is currently 40GB on each machine.

(Christian Dahlqvist) #6

And what about the output of the cluster health spy?