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Debugging

The network is reliable

A fascinating post-mortem on high profile network failures: 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
09 Jun 2013
DRBD

Redundant and Fault Tolerant PHP Session Storage

As a new PHP application grows from a single server the database is usually the bottleneck. When the original server begins to struggle the database is moved to a dedicated machine or two and perhaps read-only slaves are added (this may require some application code changes -  MySQL Proxy offers
13 Jan 2011 5 min read
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