Need basicinfo about ODK

Support
1

Hi ODK Community,

I am planning to develop a community mobile app which will help very small
Laundry vendors from India(earning $50-100 per month) to continue their
business without loosing their customers to, new app based, laundry
business who are eating their business very fast. If we don't help them now
then they will be perished. (After all Jon Snow helped wildings because
they are human too!!!) I am planning to use ODK to develop this app. Help
me to help them!!

1> How many concurrent request ODK Aggregate can handle? what is the range
of concurrent requests (0-100, 100-1000, 1000-5000) single instance of
aggregate can handle?
2> What are the possible problems with ODK aggregate?
3> How can I connect ODK aggregate with database? Has anyone tried it with
any nosql like gemfire? Has anyone tries it with apache spark?
4> How to send SMS once I receive request to ODK aggregate? Do we have such
integration available?
5> Which cloud service I should opt? Google App Engine or Amazon EC2? Can
one aggregate instance failover to next available instance?
6> I think this Aggregate Vm is not actually free? Why is it asking me for
credit card details?

Regards
Kishor

2

Kishor,

  1. Depends on your infrastructure. I know of GAE installs that handle
    50K submissions a day.

  2. https://github.com/opendatakit/opendatakit/wiki/Aggregate-Release-Notes
    and https://github.com/opendatakit/opendatakit/labels/Aggregate are
    the known problems.

  3. https://opendatakit.org/use/aggregate/data-transfer. The DB is very
    relational, so you probably don't want to shove that into a NoSQL paradigm.
    Spark is overkill for these kinds of applications.

  4. https://groups.google.com/forum/#!searchin/opendatakit/aggregate$20sms
    has previous discussions on this issue.

  5. https://opendatakit.org/use/aggregate/deployment-planning. GAE
    handles failovers automatically. AWS depends on your infrastructure.

  6. There is a suggested price for ODK Aggregate VM that ensures we can
    continue to add features and provide support. If you put $0 as the
    fair price, it won't ask for credit card details.

Yaw

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On Sun, Sep 27, 2015 at 8:00 PM, Kishor Bachhav kishorbachhav@gmail.com wrote:

Hi ODK Community,

I am planning to develop a community mobile app which will help very small
Laundry vendors from India(earning $50-100 per month) to continue their
business without loosing their customers to, new app based, laundry business
who are eating their business very fast. If we don't help them now then they
will be perished. (After all Jon Snow helped wildings because they are human
too!!!) I am planning to use ODK to develop this app. Help me to help them!!

1> How many concurrent request ODK Aggregate can handle? what is the range
of concurrent requests (0-100, 100-1000, 1000-5000) single instance of
aggregate can handle?
2> What are the possible problems with ODK aggregate?
3> How can I connect ODK aggregate with database? Has anyone tried it with
any nosql like gemfire? Has anyone tries it with apache spark?
4> How to send SMS once I receive request to ODK aggregate? Do we have such
integration available?
5> Which cloud service I should opt? Google App Engine or Amazon EC2? Can
one aggregate instance failover to next available instance?
6> I think this Aggregate Vm is not actually free? Why is it asking me for
credit card details?

Regards
Kishor

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