Beats cant send data suddenly to ES with errors pop up

[Kennedy_Kan1 (Kennedy Kan)]

I am using ES 5.0, Kibana 5.0 alpha4 and various beats to send data to ES. Everything runs fine and smooth at first. However, after a day, the beats suddenly cannot send the beats to the ES. I have been using different bearts, including winlogbeat, metribeats, etc. All of them suddenly stop working.

Error is as shown

2016/07/16 15:22:15.259659 single.go:130: INFO Connecting error publishing events (retrying): 401 Unauthorized
2016/07/16 15:22:15.259695 single.go:145: INFO send fail

What would be the issues?

[warkolm (Mark Walkom)]

Can you try running it with debug to catch a bit more info?

[steffens (Steffen Siering)]

Error says 401 Unauthorized. you using shield or some other http based proxy requiring you to authenticate? Did someone add some proxy? Have your credentials being invalidated or changed?

[Kennedy_Kan1 (Kennedy Kan)]

Hi all,

Thanks for the guidance. I have set back the credentials in the yml file and it works now. Just wonder why it did not prompt me error at first when I start the machine. It stops me and prompt the error after the beats had been working for several hours.