[Solved] Elastic shutdowns whenever he wants

Hi! First of all I never used elastic search before, only mysql, but for searching 1m records I decided to use elastic.

I'm using elastic php library to insert and get records and use only autosuggest feature. On type get records.

Main problem - elastic shut downs whenever he wants. I have 4GB vps with mysql 2000Mb (50%) and elastic with default configs (I guess it uses 1GB config). On the casual check of processes mysql uses 51-52% nginx php processes 1-10%, so I dunno why elastic always shutdowns.

in the logs (/var/log/elasticsearch) on the last file 2018-02-28
I have errors

com.fasterxml.jackson.core.JsonParseException: Unexpected character ('B' (code 66)): was expecting comma to separate Object entries

and a lot of

com.fasterxml.jackson.core.JsonParseException: Unexpected character ('Ð' (code 208)): was expecting comma to separate Object entries

Here full logs
2018-02-24-1.log https://pastebin.com/7xhr2bAZ
2018-02-25-1.log https://pastebin.com/7Yi87jA4 [maybe has needed info]
2018-02-26-1.log https://pastebin.com/x6Fjg8jx
2018-02-27-1.log https://pastebin.com/PHNsURiT
gc.log.0.current https://pastebin.com/KHnEZHtf
myapp-application.log https://pastebin.com/arwL0ujB

I guess it is maybe some ram overage, so my second question how to set elastic to use 0.5GB ram, not 1gb

How did you install it?
How do you start it?

solved issue by lowering jvm ram usage to 512m

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