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https://issues.apache.org/jira/browse/KYLIN-1857?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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nichunen closed KYLIN-1857.
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Resolution: Fixed
> Show available memory on UI - in System Tab (and other runtime statistics)
> --------------------------------------------------------------------------
>
> Key: KYLIN-1857
> URL: https://issues.apache.org/jira/browse/KYLIN-1857
> Project: Kylin
> Issue Type: Improvement
> Affects Versions: v1.5.2, v1.5.2.1
> Reporter: Richard Calaba
> Priority: Minor
>
> I have run into situation that Kylin dies (exception in log says heap out of
> memory) if I try to run 3 parallel cubes with high-cardinality dimensions. It
> is reproduceable scenario. I have set max snapshot size to 2GB and -Xmx to
> 16GB.
> If I run the cube build one-by-one -> Kylin doesn't die.
> As we have have no idea about memory requirements before we start building
> the cube(s) then for now it would be beneficial at least to monitor basic
> Kylin VM statistics, i.e.:
> -- current memory occupied by snaphots
> -- total memory allocation & total free memory
> -- how many (and which) temporary (intermediate) objects (in
> hive/hbase/filesystem) are created ...
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