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fandrei / AppMetrics

Apache License 2.0
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Deploy via mono on Linux nodes in all AWS datacenters #44

Closed mrdavidlaing closed 12 years ago

mrdavidlaing commented 12 years ago

The clocks on Windows EC2 nodes are suspect, whereas the clocks on Linux (Ubuntu 11.10) nodes are much more accurate.

We need a version of the CIAPILatencyCollector that runs under Mono, as a service on Ubuntu 11.10

fandrei commented 12 years ago

It's not that simple, as system service (and possibly auto-update) code won't work on Linux. As alternative, we can call NTP protocol directly to get precise time in our program.

mrdavidlaing commented 12 years ago

As long as we're running an NTP service on the windows EC2 machine (eg: http://www.meinberg.de/english/sw/ntp.htm#ntp_nt_stable) then the clock accuracy seems to be within 5ms. This is good enough for our measurements, so we don't need Linux nodes