Implementing and Visualizing Clickstream data with MongoDB
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The document details the implementation of a clickstream data visualization system using MongoDB at LearnVest, covering aspects like data capture, event packaging, and data warehousing. It explains the architecture, the use of various programming technologies, and data loading methodologies for analytics purposes. Additionally, it illustrates data aggregation techniques for analyzing user interactions and the overall strategy for managing and scaling data collections.
![Data Capture
OS
(void) sendAnalyticEventType:(NSString*)eventType
object:(NSString*)object
name:(NSString*)name
page:(NSString*)page
source:(NSString*)source;
NSMutableDictionary *eventData = [NSMutableDictionary dictionary];
if (eventType!=nil) [params setObject:eventType forKey:@eventType];
if (object!=nil) [eventData setObject:object forKey:@object];
if (name!=nil) [eventData setObject:name forKey:@name];
if (page!=nil) [eventData setObject:page forKey:@page];
if (source!=nil) [eventData setObject:source forKey:@source];
if (eventData!=nil) [params setObject:eventData forKey:@eventData];
[[LVNetworkEngine sharedManager] analytics_send:params];](https://image.slidesharecdn.com/learnvestclickstream-130123111157-phpapp02/85/Implementing-and-Visualizing-Clickstream-data-with-MongoDB-8-320.jpg)
![MongoDB Data Warehousing
ing Strategy
e_web.getIndexes()[
v : 1, key : { request.user-contex
created_date : 1 }, ns :
ycenter.e_web, name : request.user-context_1_created_date_
v : 1, key : { eventData.name : 1
created_date : 1 }, ns : moneycenter.e_web
name : eventData.name_1_created_date_1 }]](https://image.slidesharecdn.com/learnvestclickstream-130123111157-phpapp02/85/Implementing-and-Visualizing-Clickstream-data-with-MongoDB-22-320.jpg)
![Loading Visualization
va Batch Service
ngoDB Command Line example on aggregation over a time period, e.g. month
b.e_web.aggregate( [ { $match : { created_date : { $gt :
Date(2012-10-25T00:00:00)}}}, { $project : { day_value : {day
dayOfMonth : $created_date }, month:{ $month :
reated_date }} }}, { $group : { _id : {day_value:$day_value}
number : { $sum : 1 } } }, { $sort : { day_value : -1 } } ])](https://image.slidesharecdn.com/learnvestclickstream-130123111157-phpapp02/85/Implementing-and-Visualizing-Clickstream-data-with-MongoDB-26-320.jpg)
![17)
Loading Visualization
day numbers try: conn = pymongo.Connection('localhost',
db = conn['lvanalytics']
accountmetrics.find(
cursor =
{date : {$gte : dt_from, $lte : dt_to}}).sort(date)
urn buildMetricsDict(cursor) except Exception as e:
ger.error(e.message)
urn the graph object (as a list or a dict of lists) to the view that called the
thod
edata={}
edata['accountsGraph']=mongodb_home.getHomeChart()
urn render_to_response('home.html',{'pagedata': pagedata},
text_instance=RequestContext(request))
.homeGraphs.find()
_id : ObjectId(50f57b5c1d4e714b581674e2), accounts_natural : 54,](https://image.slidesharecdn.com/learnvestclickstream-130123111157-phpapp02/85/Implementing-and-Visualizing-Clickstream-data-with-MongoDB-28-320.jpg)
![Loading Visualization
ango and HighCharts
pulate the series.. (JavaScript with Django templating)
iesOptions[0] = {
id: 'naturalAccounts', name: Natural Accounts, data: [ {% for
n pagedata.metrics.accounts_natural %} {% if not forloop.first
{% endif %} [Date.UTC({{a.0}}),{{a.1}}] {% endfor
], tooltip: { valueDecimals: 2 } };](https://image.slidesharecdn.com/learnvestclickstream-130123111157-phpapp02/85/Implementing-and-Visualizing-Clickstream-data-with-MongoDB-29-320.jpg)
Implementing and Visualizing Clickstream data with MongoDB
- 1. Implementing and Visualizing Click- Stream Data with MongoDB Jan 22, 2013 - New York MongoDB User Group Cameron Sim - LearnVest.com
- 2. Agenda • About LearnVest • HL Application Architecture • Data Capture • Event Packaging • MongoDB Data Warehousing • Loading & Visualization • Finishing up
- 3. LearnVest Inc. www.learnvest.com Mission Statement Aiming to making Financial Planning as accessible as having a gym membership Company Key Products nded in 2008 by Alexa Von Tobel, CEO Account Aggregation and Managem (Bank, Credit, Loan, Investment, Mort 50+ People and Growing rapidly Based in NYC Original and Syndicated Newsletter Co Platforms Financial Planning Web iPhone (tiered product offering) Stack Analytics Operational MongoDB 2.2.0 (3-node replica-set Wordpress, Backbone.js, Node.js Java 6, Spring 3 ava Spring 3, Redis, Memcached,
- 4. LearnVest.com Web
- 5. LearnVest.com IPhone
- 6. High Level Architecture Production Analytics elivery Services Services Loaders Dashbo HTTPS pyMongo
- 7. ure Everything Collection -Driven events over web and mobile m-level exceptions ything else porary Data ok’ with approximate data rational Databases are the system of record egate events as they come in ove the overhead of basic metrics (counts, sums) on core events p by user unique id and increment counts per event, over time-dimensions eek-ending, month, year)
- 8. Data Capture OS (void) sendAnalyticEventType:(NSString*)eventType object:(NSString*)object name:(NSString*)name page:(NSString*)page source:(NSString*)source; NSMutableDictionary *eventData = [NSMutableDictionary dictionary]; if (eventType!=nil) [params setObject:eventType forKey:@eventType]; if (object!=nil) [eventData setObject:object forKey:@object]; if (name!=nil) [eventData setObject:name forKey:@name]; if (page!=nil) [eventData setObject:page forKey:@page]; if (source!=nil) [eventData setObject:source forKey:@source]; if (eventData!=nil) [params setObject:eventData forKey:@eventData]; [[LVNetworkEngine sharedManager] analytics_send:params];
- 9. Data Capture WEB (JavaScript) unction internalTrackPageView() { var cookie = { userContext: jQuery.cookie('UserContextCookie'), }; var trackEvent = { eventType: pageView, eventData: { page: window.location.pathname + window.location.search } }; // AJAX jQuery.ajax({ url: /api/track, type: POST, dataType: json, data: JSON.stringify(trackEvent), // Set Request Headers beforeSend: function (xhr, settings) { xhr.setRequestHeader('Accept', 'application/json'); xhr.setRequestHeader('User-Context', cookie.userContext) if(settings.type === 'PUT' || settings.type === 'POST') xhr.setRequestHeader('Content-Type', 'application/js } } });
- 10. Bus Event Packaging ng 3 RESTful service layer, controller methods define the eventCode via @tracki otation tom Intercepter class extends HandlerInterceptorAdapter and implements Handle() (for each event) to invoke calls via Spring @async to an EventPublisher ntPublisher publishes to common event bus queue with multiple subscribers, one o kages the eventPayload MapString, Object object and forwards to Analytics Rest
- 11. Bus Event Packaging ing RestController Methods ace estMapping(value = /user/login, method = RequestMethod.POST, rs=Accept=application/json) c MapString, Object userLogin(@RequestBody MapString, Object event, ervletRequest request); ete/Impl Class ride king(user.login) c MapString, Object userLogin(@RequestBody MapString, Object event, ervletRequest request){ /Implementation eturn event;
- 12. Bus Event Packaging stom Intercepter class extends HandlerInterceptorAdapter cted void handleTracking(String trackingCode, MapString, Object modelMap ervletRequest request) { MapString, Object responseModel = new HashMapString, Object(); // remove non-serializables copy over data from modelMap try { this.eventPublisher.publish(trackingCode, responseModel, request); } catch (Exception e) { log.error(Error tracking event ' + trackingCode + ' : + ExceptionUtils.getStackTrace(e)); }
- 13. Bus Event Packaging stom Intercepter class extends HandlerInterceptorAdapter c void publish (String eventCode, MapString,Object eventData, HttpServletRequest request MapString,Object payload = new HashMapString,Object(); String eventId=UUID.randomUUID().toString(); MapString, String requestMap = HttpRequestUtils.getRequestHeaders(reques //Normalize message payload.put(eventType, eventData.get(eventType)); payload.put(eventData, eventData.get(eventType)); payload.put(version, eventData.get(eventType)); payload.put(eventId, eventId); payload.put(eventTime, new Date()); payload.put(request, requestMap); . . . //Send to the Analytics Service for MongoDB persistence c void sendPost(EventPayload payload){ HttpEntity request = new HttpEntity(payload.getEventPayload(), headers) Map m = restTemplate.postForObject(endpoint, request, java.util.Map.class)
- 14. Bus Event Packaging erialized Json (User Action) tCode” : “user.login”, tType” : “login”, ion” : “1.0”, tTime” : “1358603157746”, tData” : { “” : “”, “” : “”, “” : “” }, est” : { “call-source” : “WEB”, “user-context” : “00002b4f1150249206ac2b692e48ddb3”, “user.agent” : “Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/ 23.0.1271.101 Safari/537.11”, “cookie” : “size=4; CP.mode=B; PHPSESSID=c087908516 ee2fae50cef6500101dc89; resolution=1920; JSESSIONID=56EB165266A2C4AFF9 46F139669D746F; csrftoken=73bdcd ddf151dc56b8020855b2cb10c8, content-length : 204, accept-encoding : gzip,deflate,sdch”, }
- 15. Bus Event Packaging erialized Json (Generic Event) tCode” : “generic.ui”, tType” : “pageView”, ion” : “1.0”, tTime” : “1358603157746”, tData” : { “page” : “/learnvest/moneycenter/inbox”, “section” : “transactions”, “name” : “view transactions” “object” : “page” }, est” : { “call-source” : “WEB”, “user-context” : “00002b4f1150249206ac2b692e48ddb3”, “user.agent” : “Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/ 23.0.1271.101 Safari/537.11”, “cookie” : “size=4; CP.mode=B; PHPSESSID=c087908516 ee2fae50cef6500101dc89; resolution=1920; JSESSIONID=56EB165266A2C4AFF9 46F139669D746F; csrftoken=73bdcd ddf151dc56b8020855b2cb10c8, content-length : 204, accept-encoding : gzip,deflate,sdch”, }
- 16. MongoDB Data Warehousing goDB Information 0 de replica-set rge (primary), 2x Medium (secondary) AWS Amazon-Linux machines with single 500GB EBS volumes mounted to /opt/data goDB Config File = /opt/data/mongodb/datarest = truereplSet = voyager mes vents daily on web, ~600K on mobile B per day at start, slowed to ~1GB per day ntly at 78GB (collecting since August 2012) re Scaling Strategy p 2nd Replica-Set d replica-sets to n at 60% / 250GB per EBS volume d key probably based on sequential mix of email_address additional string
- 17. MongoDB Data Warehousing OBILE ist all events, bucketed by source, event code and time:- EB/MOBILE er.login e (day, week-ending, month, year) ert into collection e_web / e_mobile sert into:- web_user_login_day web_user_login_week web_user_login_month web_user_login_year dictable model for scaling and measuring business growth
- 18. MongoDB Data Warehousing DBObject newDocument = new BasicDBObject().append($inc new BasicDBObject().append(count, 1)); ate day dimension ction_day.update(new BasicDBObject().append(user-context, userContext) .append(eventType, eventType) .append(date, sdf_day.format(d)),newDocument, true, false ate week dimension ction_week.update(new BasicDBObject().append(user-context, userContext) .append(eventType, eventType) .append(date, sdf_day.format(w)), newDocument, true, fals ate month dimension ction_month.update(new BasicDBObject().append(user-context, userContext) .append(eventType, eventType) .append(date, sdf_month.format(d)), newDocument, true, fa ate month dimension ction_year.update(new BasicDBObject().append(user-context, userContext) .append(eventType, eventType) .append(date, sdf_year.format(d)), newDocument, true, fal
- 19. MongoDB Data Warehousing ount_addManual_weeke_web_account_addManual_year _user_login_day _user_login_week _user_login_month _user_login_yeare_mobile_generic_ui_daye_mobile_generic_ui_monthe_mobile_g weeke_mobile_generic_ui_year e_web_user_login_day.find() d : ObjectId(50e4b9871b36921910222c42), count : 5, date : 01/02, -context : c4ca4238a0b923820dcc509a6f75849b } d : ObjectId(50cd6cfcb9a80a2b4ee21422), count : 7, date : 01/02, -context : c4ca4238a0b923820dcc509a6f75849b } d : ObjectId(50cd6e51b9a80a2b4ee21427), count : 2, date : 01/02, -context : c4ca4238a0b923820dcc509a6f75849b } d : ObjectId(50e4b9871b36921910222c42), count : 3, date : 01/03, -context : 50e49a561b36921910222c33 }
- 20. MongoDB Data Warehousing 1, accept-charset : ISO-8859-1,utf-8;q=0.7,*;q=0.3, cookie : size= de=B; PHPSESSID=c087908516ee2fae50cef6500101dc89; resolution=1920; IONID=56EB165266A2C4AFF946F139669D746F; oken=73bdcdddf151dc56b8020855b2cb10c8, content-length : 255, accept- ing : gzip,deflate,sdch }, eventType : flick, eventData : { obje on, name : split transaction button, page : #inbox/79876/, secti saction_river_details } }
- 21. MongoDB Data Warehousing xing Strategy xes on core collections (e_web and e_mobile) come in under 3GB on 7.5GB Large ce and 3.75GB on Medium instances datetime in two fields and compound index on date with other fields like eventTyp unique id (user-context) vy insertion rates, much lower read rates....so less indexes the better
- 22. MongoDB Data Warehousing ing Strategy e_web.getIndexes()[ v : 1, key : { request.user-contex created_date : 1 }, ns : ycenter.e_web, name : request.user-context_1_created_date_ v : 1, key : { eventData.name : 1 created_date : 1 }, ns : moneycenter.e_web name : eventData.name_1_created_date_1 }]
- 23. jective Loading Visualization how historic and intraday stats on core use cases (logins, conversions) how user funnel rates on conversion pages how general usability - how do users really use the Web and IOS platforms? on-Functionals traday doesn’t need to be “real-time”, polling is good enough for now Overnight batch job for historic must scale horizontally neral Implementation Strategy o all heavy lifting object manipulation, UI should just display graph or table Modularize the service to be able to regenerate any graphs/tables without a full load
- 24. Loading Visualization va Batch Service a Mongo library to query key collections and return user counts and sum of events ursor webUserLogins = c.find( new BasicDBObject(date, sdf.format(new Date()))); vate HashMapString, Object getSumAndCount(DBCursor cursor){ HashMapString, Object m = new HashMapString, Object(); int sum=0; int count=0; DBObject obj; while(cursor.hasNext()){ obj=(DBObject)cursor.next(); count++; sum=sum+(Integer)obj.get(count); } m.put(sum, sum); m.put(count, count); m.put(average, sdf.format(new Float(sum)/count)); return m;
- 25. Loading Visualization va Batch Service e Aggregation Framework where required on core collections (e_web) and externa reate aggregation objects bject project = new BasicDBObject($project, new BasicDBObject(day_value, fields) ); bject day_value = new BasicDBObject( day_value, $day_value); bject groupFields = new BasicDBObject( _id, day_value); reate the fields to group by, in this case “number” upFields.put(number, new BasicDBObject( $sum, 1)); reate the group bject group = new BasicDBObject($group, groupFields); xecute regationOutput output = mycollection.aggregate( project, group ); (DBObject obj : output.results()){
- 26. Loading Visualization va Batch Service ngoDB Command Line example on aggregation over a time period, e.g. month b.e_web.aggregate( [ { $match : { created_date : { $gt : Date(2012-10-25T00:00:00)}}}, { $project : { day_value : {day dayOfMonth : $created_date }, month:{ $month : reated_date }} }}, { $group : { _id : {day_value:$day_value} number : { $sum : 1 } } }, { $sort : { day_value : -1 } } ])
- 27. Loading Visualization va Batch Service sisting events into graph and table collections .homeGraphs.find() _id : ObjectId(50f57b5c1d4e714b581674e2), accounts_natural : 54, counts_total : 54, date : ISODate(2011-02-06T05:00:00Z), linked_rate .96, premium_rate : 0, str_date : 2011,01,06, upgrade_rate : 0 ers_avg_linked : 3.43, users_linked : 7 } _id : ObjectId(50f57b5c1d4e714b581674e3), accounts_natural : 144, counts_total : 144, date : ISODate(2011-02-07T05:00:00Z), linked_rat .11, premium_rate : 0, str_date : 2011,01,07, upgrade_rate : 0 ers_avg_linked : 4, users_linked : 16 } _id : ObjectId(50f57b5c1d4e714b581674e4), accounts_natural : 119, counts_total : 119, date : ISODate(2011-02-08T05:00:00Z), linked_rat .13, premium_rate : 0, str_date : 2011,01,08, upgrade_rate : 0 ers_avg_linked : 4.5, users_linked : 18 }
- 28. 17) Loading Visualization day numbers try: conn = pymongo.Connection('localhost', db = conn['lvanalytics'] accountmetrics.find( cursor = {date : {$gte : dt_from, $lte : dt_to}}).sort(date) urn buildMetricsDict(cursor) except Exception as e: ger.error(e.message) urn the graph object (as a list or a dict of lists) to the view that called the thod edata={} edata['accountsGraph']=mongodb_home.getHomeChart() urn render_to_response('home.html',{'pagedata': pagedata}, text_instance=RequestContext(request)) .homeGraphs.find() _id : ObjectId(50f57b5c1d4e714b581674e2), accounts_natural : 54,
- 29. Loading Visualization ango and HighCharts pulate the series.. (JavaScript with Django templating) iesOptions[0] = { id: 'naturalAccounts', name: Natural Accounts, data: [ {% for n pagedata.metrics.accounts_natural %} {% if not forloop.first {% endif %} [Date.UTC({{a.0}}),{{a.1}}] {% endfor ], tooltip: { valueDecimals: 2 } };
- 30. Loading Visualization ango and HighCharts d Create the Charts and Tables...
- 31. Loading Visualization ango and HighCharts d Create the Charts and Tables...
- 32. Lessons Learned • Date Time managed as two fields, Datetime and Date • Aggregating and upserting documents as events are received works for us • Real-time Map-Reduce in pyMongo - too slow, don’t do this. • Django-noRel - Unstable, use Django and configure MongoDB as a datastore only • Memcached on Django is good enough (at the moment) - use django-celery with rabbitmq to pre-cache all data after data loading • HighCharts is buggy - considering D3 other libraries • Don’t need to retrieve data directly from MongoDB to Django, perhaps provide all data via a service layer (at the expense of ever-additional features in pyMongo)
- 33. Next Steps • A/B testing framework, experiments and variances • Unauthenticated / Authenticated user tracking • Provide data async over service layer • Segmentation with graphical libraries like D3 Cross-Filter ( http://square.github.com/crossfilter/) • Saving Query Criteria, expanding out BI tools for internal users • MongoDB Connector, Hadoop and Hive (maybe Tableau and other tools) • Storm / Kafka for real-time analytics processing • Shard the Replica-Set, looking into Gizzard as the middleware
- 34. Hrishi Dixit Chief Technology Officer Kevin Connelly Director of Engineering Will Larche kevin@learnvest.com hrishi@learnvest.com Lead IOS Developer will@learnvest.com Cameron Sim Jeremy Brennan Director of Analytics Tech your name here Director of UI/UX Technology cameron@learnvest.com New Awesome Develope jeremy@learnvest.com you@learnvest.com HIR