simong

Push notifications

Problem definition

Notifications should be pushed out to clients (over websockets via socket.io) whenever an activity occurs that might interest them. The activities need to be routed from the activity servers (as they generate them) to the app servers who will then take care of delivering it too the clients.

Server setup

simong

<?xml version="1.0"?>
<!DOCTYPE tsung SYSTEM "/opt/local/share/tsung/tsung-1.0.dtd" []>
<tsung loglevel="notice" version="1.0" dumptraffic="true">

  <!-- Each client that will be running Tsung during the test -->
  <clients>
    <client host="localhost" use_controller_vm="true" maxusers="1000" />
  </clients>

  <!-- Each remote server that Tsung should performance test against. Only one would be needed if you have a load balancer. -->

simong

<?xml version="1.0"?>
<!DOCTYPE tsung SYSTEM "/opt/local/share/tsung/tsung-1.0.dtd" []>
<tsung loglevel="notice" version="1.0" dumptraffic="true">

  <!-- Each client that will be running Tsung during the test -->
  <clients>
    <client host="localhost" use_controller_vm="true" maxusers="1000" />
  </clients>

  <!-- Each remote server that Tsung should performance test against. Only one would be needed if you have a load balancer. -->

simong

var fs = require('fs');

fs.readFile('scripts/users/0.txt', function(err, users) {

    users = users.toString().split('\n');
    users.forEach(function(user) {
        user = JSON.parse(user);
        console.log('%s - %s', user.userid, user.password);
    });
});

simong

var https = require('https');
var url = require('url');

//var endpoint = 'https://oae.gatech.edu';
var endpoint = 'https://www.incommon.org';

var options = url.parse(endpoint);
options.method = 'GET';

https.get(options, function() {

simong

[root@37.153.104.210] out: Notice: /File[/var/lib/puppet/lib/puppet/parser/functions/strftime.rb]/ensure: defined content as '{md5}e02e01a598ca5d7d6eee0ba22440304a'
[root@37.153.104.210] out: Notice: /File[/var/lib/puppet/lib/puppet/parser/functions/chop.rb]/ensure: defined content as '{md5}4691a56e6064b792ed4575e4ad3f3d20'
[root@37.153.104.210] out: Notice: /File[/var/lib/puppet/lib/puppet/util/firewall.rb]/ensure: defined content as '{md5}071f574f08906d80b39fe0d1ddc14edf'
[root@37.153.104.210] out: Notice: /File[/var/lib/puppet/lib/puppet/parser/functions/is_float.rb]/ensure: defined content as '{md5}f1b0d333061d31bf0c25bd4c33dc134b'
[root@37.153.104.210] out: Notice: /File[/var/lib/puppet/lib/puppet/parser/functions/parsejson.rb]/ensure: defined content as '{md5}e7f968c34928107b84cd0860daf50ab1'
[root@37.153.104.210] out: Notice: /File[/var/lib/puppet/lib/puppet/parser/functions/validate_cmd.rb]/ensure: defined content as '{md5}0319a15d24fd077ebabc2f79969f6ab5'
[root@37.153.104.210] out: Notice: /File[/var

simong

cqlsh:oae> SELECT * FROM "AuthenticationLoginId" WHERE "loginId" = 'admin:local:administrator';
Request did not complete within rpc_timeout.

Tracing session: 7a96d380-5772-11e3-a8d6-43b9fc51e529

 activity                                                                                                 | timestamp    | source       | source_elapsed
----------------------------------------------------------------------------------------------------------+--------------+--------------+----------------
                                                                                       execute_cql3_query | 14:44:54,584 | 10.224.16.81 |              0
 Parsing SELECT * FROM "AuthenticationLoginId" WHERE "loginId" = 'admin:local:administrator' LIMIT 10000; | 14:44:54,584 | 10.224.16.81 |            118
                                                                                      Preparing statement | 14:44:54,584 | 10.224.16.81 |            293

simong

Cassandra data model

Publications

Contains the publication metadata necessary to generate pretty lists

publicationId	displayName	type	date	thumbnailUri	publisher	linkedContentId
p:abc123	Origin of Species	book	123456789	remote:http//...	Cambridge	null
p:def456	SSTables in practice	article	12345789	null	NoSQL in the real world	c:cam:kljs2341

simong

$.ajax({
  'type': 'POST',
  'url': '/api/content/reprocessPreviews',
  'data': {
    'revision_mime': [
      'application/msword',
      'application/rdf+xml',
      'application/vnd.ms-excel',
      'application/vnd.ms-powerpoint',
      'application/vnd.oasis.opendocument.presentation',

simong

<html>
<body>
<table>
<thead>
 <th>Name</th>
 <th>B</th>
 <th>20</th>
 <th>19</th>
 <th>18</th>
 <th>17</th>