10. Follow us @Blinkist
At our first internal alpha launch our dedicated Server went
down
Our onliest dedicated server that dayI got an email at 3.25 am and went to the officeAlt+Ctrl+Del via website ...Hard reset via website...Hoster hotline call and…
The server rebooted at 3:45 pm!!! With nearly 12 hours
downtime
16. Costs and Functions
Follow us @Blinkist
Heroku
PaaS
1st dyno for free
+1 dyno 34 $/month
1 dyno is able to run
3 rails instances
Scaling from 1 to
100 dynos in < 1min
Deployment via
github hooks
S3 Bucket
CDN
0.095$/GB&month
0.004$/10k GET
requests
Fully power of
amazon cloud
Codeship.io
Continous Delivery
$0 for 1st 50 builds
$9 for 50
builds/month
Triggered via github
hooks
Testrun
Heroku deployment
per git branch
Newrelic
App-Monitoring
$0/month for 8 days
data retention
0.06$/dyno&month
for 90 days data
retention
DB performance
measurement
Request duration
analysis
17. Costs and Functions
Follow us @Blinkist
MemCachier
MemCache
25MB $0/month
100MB $15/month
Analytics
Dashboard
Setup in < 1min
Logentries
Log-Management
1GB 7-days
Storage $0/month
Unlimited storage
5$/GB&month
Log-search
Event/Pattern
definition and
Email-Notification
MongoHQ
Database
2GB Storage + 250
Ram $15/month
Automated health
checks
Daily backups to
Amazon S3
$15/month
One Click Backup-
Restore
Jira
BugTracking
$10/10users&month
Fully hosted
RESTful API
18. Costs and Functions
Follow us @Blinkist
Adjust-IO
BI for APP marketing
--
User origin clicks and
install measurement
Data Clustering
KPIs and retention
rate definitons
Dashboard overview
Mixpanel
User tracking
150$/month for
500k datapoints
Customer
segmentation
Funnel definitions
and tracking
Retention definition
and tracking
Mailchimp
Email Service
0$/month for 12k
emails
Unlimited mails for
up to 10k
subscribers
$75/month
Email templating
Email tracking
CI-Simple
Continous Integration
for mobile
19$/month for 200
builds
Automated
deployment via
testflight
Automated testing
Github hooks
19. Costs and Functions
Follow us @Blinkist
Mailgun
Email-Automation
0$/month for 300
messages a day
own domain & 50k
mails/month for
$19/month
Mailing lists
Batch sending
Email tracking
Blitz.io
Load-Testing
250 concurrent
users $0/month
1000 concurrent
users 799$/month
(de)activate billed
by seconds
7-different regions
to test from
Test statistics
TestflightApp
Mobile-App
Deployment
$0/month
Ships your iOs and
Android apps to
your testers without
any store release
VersionEye
Software-Package
notifier
$3/month for 5
private repositories
Keep your software
dependencies up to
date easily
No webcrawling
needed
Email notifications
23. Follow us @Blinkist
Heroku is cycling your applications every 24 hours
Java Spring took nearly 60 seconds to boot
Once the App took more then 60 secs to boot the dyno
crashed
24. Follow us @Blinkist
One standard Heroku dyno got 512 MB ram
The used jetty server reserved mostly 520MB which lead to
permanent memory warnings which made all notifications
useless
25. Follow us @Blinkist
One mobile app-start lead to avg. 3 api requests
But the Spring Data mongodb driver does not support lazy
loading
Therefore one mobile app-start lead to 1000+ db requests
27. Follow us @Blinkist
Heroku is cycling your applications every 24 hours
Java Spring took nearly 60 seconds to boot
Once the App took more then 60 secs to boot the dyno
crashed
The grape app boots within 6 seconds
28. Follow us @Blinkist
One standard Heroku dyno got 512 MB ram
The used jetty server reserved mostly 520MB which lead to
permanent memory warnings which made all notifications
useless
One grape instance needs avg 80 MB ram
We introduced unicorn to easily run 3 grape applications
within one single heroku dyno
29. Follow us @Blinkist
One mobile app-start lead to avg. 3 api requests
But the Spring Data mongodb driver does not support lazy
loading
Therefore one mobile app-start leads to about 10-15 db
requests
The ruby gem mongoid supports lazy loading out of the box
Therefore one mobile app-start lead to 1000+ db requests