What would be the default idle timeout for the ELB? On further analysis to 5XX errors, we found that we are receiving 502 & 503 from the backend instances.
Also, in every backend instance there is a CPU spike after every 20 mins. And we have any other task/ job scheduled in the back end instance. Initially I thought this was because of the process that push logs to S3 which takes the CPU, but this is not the case as the process runs on an hourly interval while the CPU spike is on 20 min interval.
Any thoughts ??
Anyone can provide the headers for the tomcat application raw logs??