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awslabs / amazon-eks-ami

Packer configuration for building a custom EKS AMI
https://awslabs.github.io/amazon-eks-ami/
MIT No Attribution
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Update AMI to include kernel 5.4.191 #943

Closed gbucknel closed 2 years ago

gbucknel commented 2 years ago

When running Spring 2.6 we are seeing this error in production. 

Duplicate accept detected. 
This is a known OS bug. 
Please consider reporting that you are affected: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924298
--
stacktrace | 

java.io.IOException: 
Duplicate accept detected. 
This is a known OS bug. 
Please consider reporting that you are affected: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924298   

at org.apache.tomcat.util.net.NioEndpoint.serverSocketAccept(NioEndpoint.java:545)  at org.apache.tomcat.util.net.NioEndpoint.serverSocketAccept(NioEndpoint.java:78)   at org.apache.tomcat.util.net.Acceptor.run(Acceptor.java:129)   at java.base/java.lang.Thread.run(Unknown Source)

The thread linked in the exception indicates there is a kernel fix for this, which has been backported to the LTS kernels.

5.4.191 includes the fix (https://www.spinics.net/lists/stable-commits/msg244651.html) , https://lwn.net/Articles/892814/

I'm not sure what the usual release cadence is for AMIs, but if you could spin a new one with the updated kernel that would be great.

Why is this needed:

We're seeing this error in Production

cartermckinnon commented 2 years ago

The latest release, v20220610, includes kernel 5.4.196-108.356.amzn2. 👍

y0zg commented 2 years ago

@cartermckinnon Is this included in the latest EKS AMIs? Seems no.. https://github.com/awslabs/amazon-eks-ami/releases still receiving such error in EKS 1.23 and latest AMI v20220914