Links for 2013-06-04

  • The network is reliable

    Aphyr and Peter Bailis collect an authoritative list of known network partition and outage cases from published post-mortem data:

    This post is meant as a reference point — to illustrate that, according to a wide range of accounts, partitions occur in many real-world environments. Processes, servers, NICs, switches, local and wide area networks can all fail, and the resulting economic consequences are real. Network outages can suddenly arise in systems that are stable for months at a time, during routine upgrades, or as a result of emergency maintenance. The consequences of these outages range from increased latency and temporary unavailability to inconsistency, corruption, and data loss. Split-brain is not an academic concern: it happens to all kinds of systems — sometimes for days on end. Partitions deserve serious consideration.
    I honestly cannot understand people who didn’t think this was the case. 3 years reading (and occasionally auto-cutting) Amazon’s network-outage tickets as part of AWS network monitoring will do that to you I guess ;)

    (tags: networking outages partition cap failure fault-tolerance)

  • Cities 05

    from Atelier Olschinsky. ‘Fine Art Print on Hahnemuehle Photo Rag Bright White 310g; Limited Edition / Numbered and signed by the artist’

    (tags: art graphics cities prints want via:bdif)

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