tl;dr: if you need to analyze a log file (MOZ_LOG), you may want to make it easy with https://janbambas.cz/moz/logan/

Long version: have a 1TB log to dive into? Yeah.. been there :) So, couple months back I started to work on a log analyzer that would make filtering and reading large, specifically network, logs easier, more reliable and faster. We often hunt for 'the network channel' with 'the url' and what its socket or http/2 session was doing. Before logan this was hard (grep and grep and so on..). Now, load your logs to logan and search for your objects of interest in a very convenient way.

Logan front page links to documentation on use and hacking, as well as to its github repo.

The parser is very generic and extendible, open to adding new parsing rules and object tracking! There is also a network breakdown/diagnostic functionality, see [1].

Cheers!
-hb-

[1] https://www.janbambas.cz/mozilla-log-analyzer-added-basic-network-diagnostics/

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