EC2 instance shows status check fail during couple out instances.

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Hi,

I have status check failures couple of times this week.
id: i-b1c7d047

Initial troubleshoots:

  • Checked the perfomance metrics of the instance, not more than 50 %.
  • ELB access logs shows 504.
    Digging more on the logs

Meanwhile,
I was wondering if there might be a reason, why I receive these failures?
Is it common of this failure occurrence. Do other's have similar experiences?

Thank you,

joh
asked 5 years ago246 views
2 Answers
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Accepted Answer

Hi there ,
It had happened due to system status check failure.
I would ask you to make use of Autoscaling group behind ELB so that these events can be handled automatically

AWS
SUPPORT ENGINEER
Satyam
answered 5 years ago
0

SatyamSinha-AWS wrote:
Hi there ,
It had happened due to system status check failure.
I would ask you to make use of Autoscaling group behind ELB so that these events can be handled automatically

as in post https://forums.aws.amazon.com/thread.jspa?messageID=886201&#886201:
We have the same situation , and looking at the situation during the 504 errors they happens when the Target group contains one or more instances in draining state.
I think ALB needs some time to understand that an instance is not available. But this is not the right behaviour

answered 5 years ago

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