GrayLog Error: "We expected HTTP 200, but got a HTTP -1".

GrayLog Error:  "We expected HTTP 200, but got a HTTP -1".

Error:

Following Error Comes when searching messages from a longer timeframe in Graylog. "We expected HTTP 200, but got a HTTP -1".

Resolution:

1. This is usually a sign of a timeout for communication with Graylog server nodes from web interface.
2. To solve this we need to increase the Global timeout value.
3. The default value is 5s. So you can increase value as per your environment. I've changed the value to 60s in my Server.

[root@graylog ~]# grep -i timeout.DEFAULT /etc/graylog/web/web.conf
timeout.DEFAULT=60s
[root@graylog ~]#