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Marco Palladino edited comment on CASSANDRA-2103 at 2/2/15 10:19 PM:
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I do also agree with Nikolay and Amol. My use case is about storing analytics
information and then deleting data when it gets too old and the counters are
not incremented/used by the application anymore.
I am no expert, but maybe another option would be complying with the TTL set
when creating the table using {{default_time_to_live}} (as opposed as setting
the TTL when increasing the counter for the first time, which is also a nice
option to have). The application itself could then control the rotation of data
by storing/duplicating counters in "hot" or "frozen" tables. This would require
some more planning when creating the data model, as such it could be acceptable
to only allow the TTL when creating the table the first time, and prevent the
TTL from being set when altering the table.
was (Author: thefosk):
I do also agree with Nikolay and Amol. My use case is about storing analytics
information and then deleting data when it gets too old and the counters are
not incremented/used by the application anymore.
I am no expert, but maybe another option would be complying with the TTL set
when creating the table using {{default_time_to_live}} (as opposed as setting
the TTL when increasing the counter for the first time, which is also a nice
option to have). The application itself could then control the rotation of data
by storing/duplicating counters in "hot" or "frozen" tables. This would require
some more planning when creating the data model, as such it would be totally
fine to only allow the TTL when creating the table the first time, and prevent
the TTL from being set when altering the table.
> expiring counter columns
> ------------------------
>
> Key: CASSANDRA-2103
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2103
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Affects Versions: 0.8 beta 1
> Reporter: Kelvin Kakugawa
> Attachments: 0001-CASSANDRA-2103-expiring-counters-logic-tests.patch
>
>
> add ttl functionality to counter columns.
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