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https://issues.apache.org/jira/browse/CASSANDRA-17948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17613050#comment-17613050
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Stefan Miklosovic commented on CASSANDRA-17948:
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I think it is possible to implement "TRUNCATE" on virtual table if the
implementation supports that. That would translate to us cleaning that map /
structure we have. I dont think it is possible to have TTLs on virtual tables
though.
Some knob in cassandra.yaml limiting it would be probably needed though.
Diagnostic events via JMX have a data structure which drops old entries as new
ones come so we might mimic this somehow and set the default to some sane
number.
Since values are simple strings, I would probably compress them to save space
and I would unzip them in runtime on the fly. I consider this to be a
performance optimization we could do on top of that.
> Get warning and errors through virtual tables
> ---------------------------------------------
>
> Key: CASSANDRA-17948
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17948
> Project: Cassandra
> Issue Type: New Feature
> Reporter: Michiel Saelen
> Priority: Normal
>
> The warnings and errors are currently only accessible through Cassandra logs.
> Automating the monitoring of the nodes would be much easier/secure if we can
> make use of virtual tables to get the logs.
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