carbondata-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Yadong Qi (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CARBONDATA-781) Some SegmentProperties objects occupy too much memory in driver
Date Thu, 16 Mar 2017 02:31:41 GMT

     [ https://issues.apache.org/jira/browse/CARBONDATA-781?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yadong Qi updated CARBONDATA-781:
---------------------------------
    Description: When I load carbondata 1000+ times with 35 nodes, I found SegmentProperties
occupy 2.5+G(76K * 35 * 1000) memory in driver. I don't have small files so I don't want to
compact the segments. I analyzed the dump file and found the values of SegmentProperties are
the same, so I think we can reuse the SegmentProperties object if possible.  (was: When I
load carbondata 1000+ times with 35 nodes, I found SegmentProperties occupy 2.5+G(76K * 35
* 1000) memory in driver. I don't have small files so I don't want to compate the segment.
I analyze the dump file and found the value of SegmentProperties are the same, so I think
we can reuse the SegmentProperties object if possible.)

> Some SegmentProperties objects occupy too much memory in driver
> ---------------------------------------------------------------
>
>                 Key: CARBONDATA-781
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-781
>             Project: CarbonData
>          Issue Type: Improvement
>          Components: core
>    Affects Versions: 1.1.0-incubating
>            Reporter: Yadong Qi
>         Attachments: CarbonProperties.jpg
>
>
> When I load carbondata 1000+ times with 35 nodes, I found SegmentProperties occupy 2.5+G(76K
* 35 * 1000) memory in driver. I don't have small files so I don't want to compact the segments.
I analyzed the dump file and found the values of SegmentProperties are the same, so I think
we can reuse the SegmentProperties object if possible.



--
This message was sent by Atlassian JIRA
(v6.3.15#6346)

Mime
View raw message