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https://issues.apache.org/jira/browse/HAMA-761?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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MaoYuan Xian updated HAMA-761:
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Description:
Currently, GraphJobMessage comparation opertion depends on the default
comparator (org.apache.hadoop.io.WritableComparator used), which has to read
out all GraphJobMessage message (including vertexId and vertexValue) when does
the comparation.
Since lots of comparation operations happen in graph computing, this limitation
makes a performance downgrade.
was:
Currently, GraphJobMessage comparation opertion depends on the default
comparator (org.apache.hadoop.io.WritableComparator used), which has to read
out all GraphJobMessage message (including key and value) when does the
comparation.
Since lots of comparation operations happen in graph computing, this limitation
makes a performance downgrade.
> Improvement for GraphJobMessage comparation operation
> -----------------------------------------------------
>
> Key: HAMA-761
> URL: https://issues.apache.org/jira/browse/HAMA-761
> Project: Hama
> Issue Type: Improvement
> Components: graph
> Affects Versions: 0.6.1
> Reporter: MaoYuan Xian
> Assignee: MaoYuan Xian
>
> Currently, GraphJobMessage comparation opertion depends on the default
> comparator (org.apache.hadoop.io.WritableComparator used), which has to read
> out all GraphJobMessage message (including vertexId and vertexValue) when
> does the comparation.
> Since lots of comparation operations happen in graph computing, this
> limitation makes a performance downgrade.
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