[OH-Publicity] New blog, same as the old blog

[Asheesh Laroia]

Hello, dear everyone,

TL;DR
-----

The blog has a new host, but the URL is the same. It should be more 
reliable now.

More details
------------

After much struggling over the past week with php5-fpm acting up on 
linode.openhatch.org, I've moved openhatch.org/blog/ to the well-loved 
hosting services of nearlyfreespeech.net.

I began this move at about 00:15am US/Eastern, and it's finished as of 
02:46am US/Eastern. I also checked the old WordPress database and there 
were no posts edited during that period. There were also no comments left 
during that period.

To test things, I went through this checklist: 
https://openhatch.org/wiki/Making_changes_to_the_blog . I also improved 
the checklist so that it adds a test for file uploads, which I also 
checked.

This does mean we'll pay something for the hosting, but it won't be 
very much money.

It does mean we're trading control away to get possible problems down the 
road, such as the fact that we now need to adjust our backup strategy to 
include this, and also who knows, maybe one day nearlyfreespeech.net will 
let us down.

In terms of making the domain name work: We proxy all access to the 
OpenHatch blog through nginx on linode.openhatch.org, which was already 
acting as the frontend proxy for the rest of the site.

Footnote about scale
--------------------

The good news with this change is that we can easily handle >800 requests 
per second, non-HTTP. For HTTPS we're stuck at a "measly" 100 requests per 
second, which honestly is pretty okay too!

If you're giving out links that will be put on Hacker News or Slashdot or 
similar, you might as well continue to use HTTP links, but suddenly it 
matters a lot less. Full "ab" output:

for https:

$ /usr/sbin/ab -c 300 -n 500 https://openhatch.org/blog/

This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking openhatch.org (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Finished 500 requests


Server Software:        nginx/1.2.1
Server Hostname:        openhatch.org
Server Port:            443
SSL/TLS Protocol:       TLSv1/SSLv3,RC4-SHA,2048,128

Document Path:          /blog/
Document Length:        1873 bytes

Concurrency Level:      300
Time taken for tests:   5.182 seconds
Complete requests:      500
Failed requests:        196
    (Connect: 0, Receive: 0, Length: 196, Exceptions: 0)
Write errors:           0
Non-2xx responses:      304
Total transferred:      12627800 bytes
HTML transferred:       12466200 bytes
Requests per second:    96.49 [#/sec] (mean)
Time per request:       3109.148 [ms] (mean)
Time per request:       10.364 [ms] (mean, across all concurrent requests)
Transfer rate:          2379.78 [Kbytes/sec] received

Connection Times (ms)
               min  mean[+/-sd] median   max
Connect:       16 1309 975.6    957    3481
Processing:   147 1267 1092.6    726    3636
Waiting:      147 1234 1104.1    725    3636
Total:        365 2576 1356.0   3636    3983

Percentage of the requests served within a certain time (ms)
   50%   3636
   66%   3668
   75%   3677
   80%   3679
   90%   3713
   95%   3727
   98%   3729
   99%   3747
  100%   3983 (longest request)

for http:

$ /usr/sbin/ab -c 300 -n 500 http://openhatch.org/blog/

This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking openhatch.org (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Finished 500 requests


Server Software:        nginx/1.2.1
Server Hostname:        openhatch.org
Server Port:            80

Document Path:          /blog/
Document Length:        1873 bytes

Concurrency Level:      300
Time taken for tests:   0.631 seconds
Complete requests:      500
Failed requests:        12
    (Connect: 0, Receive: 0, Length: 12, Exceptions: 0)
Write errors:           0
Non-2xx responses:      488
Total transferred:      1771000 bytes
HTML transferred:       1642400 bytes
Requests per second:    792.83 [#/sec] (mean)
Time per request:       378.391 [ms] (mean)
Time per request:       1.261 [ms] (mean, across all concurrent requests)
Transfer rate:          2742.39 [Kbytes/sec] received

Connection Times (ms)
               min  mean[+/-sd] median   max
Connect:        0    6   6.8      3      21
Processing:   124  151  29.4    152     461
Waiting:      124  148  16.5    151     334
Total:        125  157  30.1    157     461

Percentage of the requests served within a certain time (ms)
   50%    157
   66%    160
   75%    164
   80%    167
   90%    175
   95%    180
   98%    256
   99%    296
  100%    461 (longest request)


-- Asheesh.