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https://issues.apache.org/jira/browse/HBASE-17732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16185176#comment-16185176
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Hudson commented on HBASE-17732:
--------------------------------
SUCCESS: Integrated in Jenkins build HBase-Trunk_matrix #3795 (See
[https://builds.apache.org/job/HBase-Trunk_matrix/3795/])
HBASE-18884 Coprocessor Design Improvements follow up of HBASE-17732 (appy: rev
74d0adce61fc39ef9d1ec2254dcd0f53181bb62c)
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/BaseRowProcessorEndpoint.java
* (edit)
hbase-examples/src/main/java/org/apache/hadoop/hbase/coprocessor/example/RefreshHFilesEndpoint.java
* (edit)
hbase-rsgroup/src/main/java/org/apache/hadoop/hbase/rsgroup/RSGroupAdminEndpoint.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/security/token/TokenProvider.java
* (edit)
hbase-endpoint/src/test/java/org/apache/hadoop/hbase/coprocessor/ColumnAggregationEndpoint.java
* (edit)
hbase-endpoint/src/test/java/org/apache/hadoop/hbase/coprocessor/TestRegionServerCoprocessorEndpoint.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/CoprocessorServiceBackwardCompatiblity.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/security/visibility/VisibilityController.java
* (edit) hbase-client/src/main/java/org/apache/hadoop/hbase/Coprocessor.java
* (edit)
hbase-endpoint/src/main/java/org/apache/hadoop/hbase/coprocessor/AggregateImplementation.java
* (edit)
hbase-endpoint/src/main/java/org/apache/hadoop/hbase/security/access/SecureBulkLoadEndpoint.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/WALCoprocessor.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.java
* (edit)
hbase-endpoint/src/test/java/org/apache/hadoop/hbase/coprocessor/ProtobufCoprocessorService.java
* (add)
dev-support/design-docs/Coprocessor_Design_Improvements-Use_composition_instead_of_inheritance-HBASE-17732-2017_09_27.pdf
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/security/access/TestAccessController.java
* (edit)
hbase-examples/src/main/java/org/apache/hadoop/hbase/coprocessor/example/RowCountEndpoint.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServerCoprocessorHost.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/security/access/AccessController.java
* (edit)
hbase-endpoint/src/test/java/org/apache/hadoop/hbase/coprocessor/ColumnAggregationEndpointWithErrors.java
* (edit)
hbase-endpoint/src/main/java/org/apache/hadoop/hbase/coprocessor/Export.java
* (edit)
hbase-endpoint/src/test/java/org/apache/hadoop/hbase/regionserver/TestServerCustomProtocol.java
* (edit)
hbase-endpoint/src/test/java/org/apache/hadoop/hbase/coprocessor/ColumnAggregationEndpointNullResponse.java
* (edit)
hbase-endpoint/src/test/java/org/apache/hadoop/hbase/coprocessor/TestAsyncCoprocessorEndpoint.java
* (edit)
hbase-examples/src/main/java/org/apache/hadoop/hbase/coprocessor/example/BulkDeleteEndpoint.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/MultiRowMutationEndpoint.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterCoprocessorHost.java
HBASE-18884 Coprocessor Design Improvements follow up of HBASE-17732; (stack:
rev b5b4108fcedeea4e25e86f426e313ffa51229d10)
* (add) dev-support/design-docs/README.txt
* (edit) hbase-client/src/main/java/org/apache/hadoop/hbase/Coprocessor.java
> Coprocessor Design Improvements
> -------------------------------
>
> Key: HBASE-17732
> URL: https://issues.apache.org/jira/browse/HBASE-17732
> Project: HBase
> Issue Type: Improvement
> Components: Coprocessors
> Reporter: Appy
> Assignee: Appy
> Priority: Critical
> Labels: incompatible
> Fix For: 2.0.0-alpha-4
>
> Attachments: HBASE-17732.master.001.patch,
> HBASE-17732.master.002.patch, HBASE-17732.master.003.patch,
> HBASE-17732.master.004.patch, HBASE-17732.master.005.patch,
> HBASE-17732.master.006.patch, HBASE-17732.master.007.patch,
> HBASE-17732.master.008.patch, HBASE-17732.master.009.patch,
> HBASE-17732.master.010.patch, HBASE-17732.master.011.patch,
> HBASE-17732.master.012.patch, HBASE-17732.master.013.patch,
> HBASE-17732.master.014.patch
>
>
> The two main changes are:
> * *Adding template for coprocessor type to CoprocessorEnvironment i.e.
> {{interface CoprocessorEnvironment<C extends Coprocessor>}}*
> ** Enables 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
> duplicated in each host. For eg. CoprocessorOperations,
> CoprocessorOperationWithResult, execOperations().
> * *Introduce 4 coprocessor classes and use composition between these new
> classes and and old observers*
> ** The real gold here is, moving forward, we'll be able to break down giant
> everything-in-one observers (masterobserver has 100+ functions) into smaller,
> more focused observers. These smaller observer can then have different compat
> guarantees!!
> Here's a more detailed design doc:
> https://docs.google.com/document/d/1mPkM1CRRvBMZL4dBQzrus8obyvNnHhR5it2yyhiFXTg/edit?usp=sharing
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