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Posted to dev@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2016/12/19 14:59:58 UTC
[jira] [Created] (IGNITE-4461) Hadoop: automatically define best
"partially raw" comparator based on key type.
Vladimir Ozerov created IGNITE-4461:
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Summary: Hadoop: automatically define best "partially raw" comparator based on key type.
Key: IGNITE-4461
URL: https://issues.apache.org/jira/browse/IGNITE-4461
Project: Ignite
Issue Type: Task
Components: hadoop
Affects Versions: 1.8
Reporter: Vladimir Ozerov
Assignee: Vladimir Ozerov
Fix For: 2.0
We have special {{PartiallyRawComparator}} interface which provides nice speedup by removing unnecessary objects deserializations during insert into result multi-map. And we have a one implementation for now for {{Text}} class: {{TextPartiallyRawComparator}}.
We should do the following:
1) Try guessing proper comparator in runtime using {{JobConf.getOutputKeyClass()}} property.
2) Add ability to disable this automatic resolution.
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