Zooko says: "This monitoring and operations engineering is a lot of work!" amen to that

from Basho, via istvan. DTrace is becoming more compelling as a deep instrumentation/monitoring API -- I didn't realise disabled DTrace probes were virtually 0-overhead (a "2 NOOP instruction placeholder", apparently), that's nifty. Wonder if they've fixed the licensing mess, though

I never really understood how useful a good metrics infrastructure could be for operational visibility until I joined Amazon.  Here's a good demo of Etsy's metrics system (via Netlson)

wraps strace(1) to summarise and aggregate I/O ops performed by a Linux process. looks pretty nifty (via Jeremy Zawodny)

metrics, monitoring, instrumentation, fault tolerance, load mitigation called out as other factors by Allspaw

'View real-time data and statistics from any logfile on any server with SSH, in an intuitive and entertaining way', supporting postfix/spamd/clamd logs among loads of others. very cool if a little silly