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Yes, using the "metric" filter in logstash. In the default configuration, it will emit metric events every 5 seconds for a given field. By resetting the counter every 5 seconds, you can send the data straight to Graphite's carbon server for storing. input { file { path => "/var/log/apache2/access.log" } } filter { grok { ...


My solution for running 1-2 hours tests: tcpflow to collect TCP flow, I use tcpflow -i eth0 -FT to have timestamp in the result file names parse report.xml (DFXML) to create report on closed connections parse the file names with captured traffic + record their sizes to report on the ongoing connection during the measurement use matplotlib to plot graphs ...

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