Hello Dennis,

do you have anything in the Logs this time?
Is the server node responding to REST requests?
Can you run jstack <pid> and/or jmap <pid> next time the server is hung and 
upload the results somewhere?

Kind regards,
        D. 

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From: Dennis Jacobfeuerborn [email protected]
Reply: [email protected] [email protected]
Date: 15. Mai 2014 at 17:39:07
To: [email protected] [email protected]
Subject:  [graylog2] Re: graylog2 0.20.1 suddenly no longer receiving messages  

This just happened again. Any ideas what I can do to debug this?

On Wednesday, May 14, 2014 7:39:57 PM UTC+2, Dennis Jacobfeuerborn wrote:
Hi,
today my graylog2 server suddenly stopped receiving messages from one moment to 
the next. The only interesting messages I found in the log are:

No graylog2 master node available. Check the configuration for is_master=true 
on at least one node.
Notification condition [NO_MASTER] has been fixed.

I'm not sure what to make of this. A simple restart of the server seems to have 
fixed the issue but I fear the server will die on me again in the future.
Any idea what this could be or how to debug this if it should occur again?

Regards,
  Dennis
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