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Hive >> mail # user >> Rolling MAU computation


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Tom Hubina 2012-10-10, 22:05
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Roberto Sanabria 2012-10-10, 22:59
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Tom Hubina 2012-10-10, 23:04
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Re: Rolling MAU computation
How about
SELECT day, COUNT(DISTINCT(userid)) FROM logins WHERE day - logins.day
< 30 GROUP BY day;

On Thu, Oct 11, 2012 at 6:05 AM, Tom Hubina <[EMAIL PROTECTED]> wrote:
> I'm trying to compute the number of active users in the previous 30 days for
> each day over a date range. I can't think of any way to do it directly
> within Hive so I'm wondering if you guys have any ideas.
>
> Basically the algorithm is something like:
>
> For each day in date range:
>    SELECT day, COUNT(DISTINCT(userid)) FROM logins WHERE day - logins.day <
> 30;
>
> Thanks for your help!
>
> Tom
>
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Tom Hubina 2012-10-12, 19:59
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Igor Tatarinov 2012-10-11, 06:05
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Tom Hubina 2012-10-12, 20:02
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Igor Tatarinov 2012-10-12, 20:08
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Vijay 2012-10-12, 20:42
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB