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From "Appy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-17732) Coprocessor Design Improvements
Date Wed, 06 Sep 2017 23:34:00 GMT

     [ https://issues.apache.org/jira/browse/HBASE-17732?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Appy updated HBASE-17732:
-------------------------
    Description: 
Adding template for coprocessor type to CoprocessorEnvironment will:
- allow us to load only relevant coprocessors in hosts (right now each type of host loads
all types of coprocs and it's only during execOperation that it checks if the coproc is of
correct type i.e. XCoprocessorHost will load XObserver, YObserver, and all others, and will
check in execOperation if {{coproc instanceOf XObserver}} 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().

Here's a more detailed design doc: https://docs.google.com/document/d/1PBEnaqyJeiHvALFswF_yl81-rOpQmZuixCDua-LT9X4/edit


> 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, HBASE-17732.master.003.patch
>
>
> Adding template for coprocessor type to CoprocessorEnvironment will:
> - allow us to load only relevant coprocessors in hosts (right now each type of host loads
all types of coprocs and it's only during execOperation that it checks if the coproc is of
correct type i.e. XCoprocessorHost will load XObserver, YObserver, and all others, and will
check in execOperation if {{coproc instanceOf XObserver}} 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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