1. Building Killr Applications
with DataStax Enterprise
@LukeTillman
Technical Evangelist at DataStax

2. 2
Luke, Technical Evangelist Currently:
DataStax Enterprise
Cassandra
.NET
Node.js
Previously:
Web Applications
RDBMS

3. A reference application for users looking to learn how to use
Cassandra and DataStax Enterprise with their programming
language of choice.
https://killrvideo.github.io/

4. 4
The video catalog service
is essentially a product
catalog where videos are
our product. How do we
make it searchable?

5. A basic, Cassandra only solution
5

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When users add videos,
they add tags describing
the video's content. Tags
are just keywords that
describe the content.

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CREATE TABLE videos_by_tag (
tag text,
videoid uuid,
added_date timestamp,
userid uuid,
name text,
preview_image_location text,
tagged_date timestamp,
PRIMARY KEY (tag, videoid)
);
SELECT * FROM videos_by_tag
WHERE tag = 'cassandra';
What about searching for
keywords in the title or
description? Users expect
more from search.

8. 8
With DSE Search, we can
search on our Cassandra
data without complicating
things by introducing other
pieces infrastructure.

9. A comprehensive solution with DataStax Enterprise Search
9

10. <?xml version="1.0"?>
<schema name="videoSchema">
<types>
...
</types>
<fields>
...
</fields>
</schema>
DSE Search is based on
Solr, so you may be
expecting lots of manual
setup with ugly XML to
define the schema and
configuration.

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In reality, enabling basic
search functionality on a
table in DataStax Enterprise
is a simple command line
instruction.
SELECT * FROM videos
WHERE solr_query =
'description:cassandra';
> dsetool create_core killrvideo.videos generateResources=true

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You've also got all the
power of Solr for more
complex queries and can
customize those XML
resources for more
complicated features.
{ "q": "{!edismax qf='name^2 tags^1 description'} cassandra" }

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But wait, there’s more! DSE
5.1 (coming soon to a
download near you) has a
ton of Search
improvements.
Some key improvements in
DSE Search 5.1 include:
• Solr has been upgraded
from 4.10 to 6.0.1
• Core management can
be done using CQL
CREATE SEARCH INDEX ON killrvideo.videos;

14. https://killrvideo.github.io/
Questions?
@LukeTillman