[
https://issues.apache.org/jira/browse/PHOENIX-3000?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Lars Hofhansl resolved PHOENIX-3000.
------------------------------------
Resolution: Fixed
Assignee: Lars Hofhansl
Committed to master and 4.x*
> Reduce memory consumption during DISTINCT aggregation
> -----------------------------------------------------
>
> Key: PHOENIX-3000
> URL: https://issues.apache.org/jira/browse/PHOENIX-3000
> Project: Phoenix
> Issue Type: Bug
> Reporter: Lars Hofhansl
> Assignee: Lars Hofhansl
> Attachments: 3000-v2.txt, 3000.txt
>
>
> In {{DistinctValueWithCountServerAggregator.aggregate}} we hold on the ptr
> handed to us from HBase.
> Note that this pointer points into an HFile Block, and hence we hold onto the
> entire block for the duration of the aggregation.
> If the column has high cardinality we might attempt holding the entire table
> in memory in the extreme case.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
