By ellisgeek
I just spun up a ELK server using the one click installer. When I open Kibana it tells me it’s unable to connect to elastic search. When I ssh into the box and attempt to start elasticsearch (sudo service elasticsearch start) it falls into a loop printing “fail” over and over.
Output:
* Starting Elasticsearch Server
...fail!
...fail!
...fail!
...fail!
...fail!
...fail!
...fail!
...fail!
...fail!
...fail!```
I am completely new to ELK and just wanted to give it a spin. I guess for now I'll just manually set it up on a Ubuntu Droplet.
Full Disclosure it is a 512MB Droplet.This textbox defaults to using Markdown to format your answer.
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The ELK stack can be quite memory intensive. We recommend using at least a 2 GB droplet, though some have success with 1 GB ones.
I just ran into a similar problem using a 1GB Droplet. I noticed that the Digital Ocean ELK image does not have swap enabled by default, so I used the guide linked below and rebooted the droplet. It’s working for now, but I’m not sure if this is enough to keep it happy in the long term. I had to use the fast method in the guide to create the swapfile as ELK was using up too much memory for the first method to work.
https://www.digitalocean.com/community/tutorials/how-to-add-swap-on-ubuntu-14-04
I upgraded to Java 8 and it solved this issue for me - I was using the java cookbook as my situation was a Chef implementation. Note that the java cookbook has the option to set the java version you want - it also required that I configure it to use oracle java flavor. That’s all I did and the start/fail problem was gone.
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