I have an API (built with nodejs) and deployed on a kubernetes cluster using a docker image.
For default route I simply return a Hello World QA!
message.
I am testing response times of this GET request and I see that once in a while, randomly, one of the requests takes MUCH longer than others, eg:
Cristians-MBP:google_cloud cristiboariu$ curl -X GET "http://35.230.22.104:8000" -w "@curl-format.txt" -s
Hello World QA!time_namelookup: 0.005095
time_connect: 0.203066
time_appconnect: 0.000000
time_pretransfer: 0.203164
time_redirect: 0.000000
time_starttransfer: 0.420915
----------
time_total: 0.421004
Cristians-MBP:google_cloud cristiboariu$ curl -X GET "http://35.230.22.104:8000" -w "@curl-format.txt" -s
Hello World QA!time_namelookup: 0.005164
time_connect: 0.236487
time_appconnect: 0.000000
time_pretransfer: 0.236551
time_redirect: 0.000000
time_starttransfer: 0.449582
----------
time_total: 0.449632
Cristians-MBP:google_cloud cristiboariu$ curl -X GET "http://35.230.22.104:8000" -w "@curl-format.txt" -s
Hello World QA!time_namelookup: 0.005092
time_connect: 0.214788
time_appconnect: 0.000000
time_pretransfer: 0.214851
time_redirect: 0.000000
time_starttransfer: 0.419028
----------
time_total: 0.419075
Cristians-MBP:google_cloud cristiboariu$ curl -X GET "http://35.230.22.104:8000" -w "@curl-format.txt" -s
Hello World QA!time_namelookup: 0.005099
time_connect: 1.009918
time_appconnect: 0.000000
time_pretransfer: 1.009983
time_redirect: 0.000000
time_starttransfer: 3.137044
----------
time_total: 3.137087
This happens for ANY endpoint hosted here. I simply don't know what can be the cause. Can anybody help please?