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https://issues.apache.org/jira/browse/HBASE-17732?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Appy updated HBASE-17732:
-------------------------
Description:
Adding template for coprocessor type to CoprocessorEnvironment will:
- get rid of 'instanceOf' checks we do in various coprocessor hosts
- allow us to load only relevant coprocessors in hosts (right now i think each
host loads all coprocs and it's only during execOperation that it checks if the
coproc is of correct type ie XXCoprocessorHost will load XXObserver,
YYObserver, and all others, and in will check in execOperation if coproc is of
type XXObserver and ignore the rest).
- allow sharing of a bunch functions/classes which are currently 99% duplicate
of each other. For eg. CoprocessorOperations, CoprocessorOperationWithResult,
execOperations().
Here's a more detailed design doc:
https://docs.google.com/document/d/1PBEnaqyJeiHvALFswF_yl81-rOpQmZuixCDua-LT9X4/edit
was:
Adding template for coprocessor type to CoprocessorEnvironment will:
- get rid of 'instanceOf' checks we do in various coprocessor hosts
- allow us to load only relevant coprocessors in hosts (right now i think each
host loads all coprocs and it's only during execOperation that it checks if the
coproc is of correct type ie XXCoprocessorHost will load XXObserver,
YYObserver, and all others, and in will check in execOperation if coproc is of
type XXObserver and ignore the rest).
- allow sharing of a bunch functions/classes which are currently 99% duplicate
of each other. For eg. CoprocessorOperations, CoprocessorOperationWithResult,
execOperations().
> Coprocessor Design Improvements
> -------------------------------
>
> Key: HBASE-17732
> URL: https://issues.apache.org/jira/browse/HBASE-17732
> Project: HBase
> Issue Type: Improvement
> Reporter: Appy
> Assignee: Appy
> Attachments: HBASE-17732.master.001.patch,
> HBASE-17732.master.002.patch
>
>
> Adding template for coprocessor type to CoprocessorEnvironment will:
> - get rid of 'instanceOf' checks we do in various coprocessor hosts
> - allow us to load only relevant coprocessors in hosts (right now i think
> each host loads all coprocs and it's only during execOperation that it checks
> if the coproc is of correct type ie XXCoprocessorHost will load XXObserver,
> YYObserver, and all others, and in will check in execOperation if coproc is
> of type XXObserver and ignore the rest).
> - allow sharing of a bunch functions/classes which are currently 99%
> duplicate of each other. For eg. CoprocessorOperations,
> CoprocessorOperationWithResult, execOperations().
> Here's a more detailed design doc:
> https://docs.google.com/document/d/1PBEnaqyJeiHvALFswF_yl81-rOpQmZuixCDua-LT9X4/edit
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