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Ask HN: server I/O spike
I have an app on linode and they sent me an email letting me know of a spike in disk I/o that lasted about 2 hour ad now it's back to normal.
What should I look at when diagnosing what happened?
Weird things at first glance:
1) A spike of incoming network traffic happened at 22:00 2) A spike of outgoing network traffic between 2:00 to 4:00 3)Disk I/O between 6:00 and 8:00