Google Interview Question for Technical Support Engineers
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Hi,- xyz June 08, 2019 in United States
My virtual machine is talking to our on-premise Hadoop cluster and we have observed connections dropped by the VM after approximately 15 minutes after being established. We have tried tweaking our cluster and the VPN, but it did not work. We have also disabled any firewall or NAT: our cluster is connected directly to the Internet. We ran a TCP packet capture on one of our routers and we do see the following:
408 7.963058 220.127.116.11 172.16.72.34 TCP 66 http > 42867 [FIN, ACK] Seq=312 Ack=11 Win=14592 Len=0 TSval=3673141343 TSecr=234006479
409 7.963204 172.16.72.34 18.104.22.168 TCP 66 42867 > http [FIN, ACK] Seq=11 Ack=313 Win=15744 Len=0 TSval=234006482 TSecr=3673141343
410 7.995556 22.214.171.124 172.16.72.34 TCP 66 http > 42867 [ACK] Seq=313 Ack=12 Win=14592 Len=0 TSval=3673141351 TSecr=234006482
Please help, this is a fault in your network, I need a solution ASAP!
n1) If you were to troubleshoot / debug this issue, what areas would you look into to resolve the issue?
n2) Please explain briefly how you identified the correct solution, and if there were any other possibilities that you considered?
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