Create 2025-05-09-initial-log-analysis.md

Author: chrisroos

docs/2025-05-09-initial-log-analysis.md

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+This is after the DNS for (*.)rubyforge.org was [updated to point at Fastly on 8th May 2025](https://github.com/rubycentral/rubyforge-redirects/issues/8).
+
+```
+# Count of log entries
+sqlite> select count(*) from logs;
+185926
+
+# Count of log entries grouped by HTTP status code and HTTP host
+sqlite> select response_status, host, count(*) from logs group by 1, 2 order by count(*) desc limit 20;
+404|rubyforge.org|33555
+301|gems.rubyforge.org|17663
+404|www.rubyforge.org|3835
+404|sequel.rubyforge.org|2350
+404|rack.rubyforge.org|2232
+404|rake.rubyforge.org|2183
+404|wxruby.rubyforge.org|2160
+404|amazon.rubyforge.org|2135
+404|god.rubyforge.org|2117
+404|juggernaut.rubyforge.org|2117
+404|webgen.rubyforge.org|2078
+404|maruku.rubyforge.org|2044
+404|mechanize.rubyforge.org|2040
+404|rmagick.rubyforge.org|2038
+404|kramdown.rubyforge.org|2031
+404|backgroundrb.rubyforge.org|2024
+404|wtr.rubyforge.org|2017
+404|geokit.rubyforge.org|2013
+404|libxml.rubyforge.org|2011
+404|celerity.rubyforge.org|2008
+
+# Count of log entries grouped by date
+sqlite> select date(timestamp), count(*) from logs group by 1;
+2025-04-04|254
+2025-04-05|355
+2025-04-06|300
+2025-04-07|488
+2025-04-08|350
+2025-04-09|523
+2025-04-10|957
+2025-04-11|327
+2025-04-12|488
+2025-04-13|480
+2025-04-14|776
+2025-04-15|824
+2025-04-16|653
+2025-04-17|538
+2025-04-18|297
+2025-04-19|378
+2025-04-20|674
+2025-04-21|617
+2025-04-22|340
+2025-04-23|561
+2025-04-24|565
+2025-04-25|318
+2025-04-26|576
+2025-04-27|316
+2025-04-28|522
+2025-04-29|411
+2025-04-30|346
+2025-05-01|341
+2025-05-02|522
+2025-05-03|765
+2025-05-04|512
+2025-05-05|600
+2025-05-06|344
+2025-05-07|621
+2025-05-08|10407
+2025-05-09|158580
+
+# Count of log entries grouped by host before switching DNS to Fastly
+sqlite> select host, count(*) from logs where date(timestamp) < '2025-05-09' group by 1 order by count(*) desc limit 5;
+gems.rubyforge.org|17607
+rubyforge.org|3791
+activewarehouse.rubyforge.org|428
+www.rubyforge.org|248
+juggernaut.rubyforge.org|155
+
+# Count of log entries grouped by host after switching DNS to Fastly
+sqlite> select host, count(*) from logs where date(timestamp) > '2025-05-08' group by 1 order by count(*) desc limit 5;
+rubyforge.org|29769
+www.rubyforge.org|3587
+sequel.rubyforge.org|2287
+rack.rubyforge.org|2212
+rake.rubyforge.org|2124
+```