PyCounters is a light weight library to monitor performance and events in production systems
Checkout http://pycounters.readthedocs.org/ for more details.
Fixed: a busy leader which doesn’t respond to a ping on a timely fashion was not handled correctly.
NEW: new types of counters MaxWindowCounter, MinWindowCounter
IMPORTANT: changes in package structure, counters module split int sub modules. Backward compatible as long as no internals were used.
Fixed: removing a counter by name caused an exception
Fixed: too short queue on multi process server caused pycounters to fail if used on >~10 processes
Fixed: starting up a new process in a multi-process auto election setup caused JSON reporter to output an empty file (which will then be updated in the next cycle)
Fixed - locking issue with JSON output files
Fixed - EventCounter did not respond to events keyword argument
added a patcher util class to allow injecting events to existing libraries/code.
decoupled counter names from the names of events they count. Still, by default a counter will count events with it’s name
shortcut decorators now take the name of the function they wrap as a default event name
Added a role option to multi process reporting initializations.
Made all report_* and shortcuts decorators usable as context managers.
Munin plugin now ignores old reports by default
Counters which doesn’t have any value now return None instead of 0.
Fixed an issue with aggregation of average values when not all sources had the same value
Added output_report() to allow manual initiation of reports.
Added a manifest.in file, so that CHANGES.txt will come along.
Added multiprocess support.
Extended EventLogger to allow regex based filtering of events it logs.
Added JSONFileReporter to output reports in JSON format
Added a utility to facilitate writing Munin plugins
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