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From "Hao Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (EAGLE-520) Decouple Co-processor with Eagle Aggreation Query Service
Date Wed, 07 Sep 2016 05:43:21 GMT

    [ https://issues.apache.org/jira/browse/EAGLE-520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15469639#comment-15469639
] 

Hao Chen commented on EAGLE-520:
--------------------------------

Coprocessor exception:

{code}
ABORTING region server sandbox.hortonworks.com,60020,1473225565436: The coprocessor org.apache.eagle.storage.hbase.query.coprocessor.AggregateProtocolEndPoint
threw an unexpected exception
Cause:
java.lang.LinkageError: loader constraint violation in interface itable initialization: when
resolving method "org.apache.eagle.storage.hbase.query.coprocessor.AggregateProtocolEndPoint.getService()Lcom/google/protobuf/Service;"
the class loader (instance of org/apache/hadoop/hbase/util/CoprocessorClassLoader) of the
current class, org/apache/eagle/storage/hbase/query/coprocessor/AggregateProtocolEndPoint,
and the class loader (instance of sun/misc/Launcher$AppClassLoader) for interface org/apache/hadoop/hbase/coprocessor/CoprocessorService
have different Class objects for the type com/google/protobuf/Service used in the signature
        at java.lang.Class.getDeclaredConstructors0(Native Method)
        at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
        at java.lang.Class.getConstructor0(Class.java:3075)
        at java.lang.Class.newInstance(Class.java:412)
        at org.apache.hadoop.hbase.coprocessor.CoprocessorHost.loadInstance(CoprocessorHost.java:247)
        at org.apache.hadoop.hbase.coprocessor.CoprocessorHost.load(CoprocessorHost.java:210)
        at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.loadTableCoprocessors(RegionCoprocessorHost.java:301)
        at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.<init>(RegionCoprocessorHost.java:200)
        at org.apache.hadoop.hbase.regionserver.HRegion.<init>(HRegion.java:701)
        at org.apache.hadoop.hbase.regionserver.HRegion.<init>(HRegion.java:608)
        at sun.reflect.GeneratedConstructorAccessor70.newInstance(Unknown Source)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at org.apache.hadoop.hbase.regionserver.HRegion.newHRegion(HRegion.java:5438)
        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:5749)
        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:5722)
        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:5678)
        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:5629)
        at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.openRegion(OpenRegionHandler.java:465)
        at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.process(OpenRegionHandler.java:139)
        at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:128)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)

{code}

> Decouple Co-processor with Eagle Aggreation Query Service
> ---------------------------------------------------------
>
>                 Key: EAGLE-520
>                 URL: https://issues.apache.org/jira/browse/EAGLE-520
>             Project: Eagle
>          Issue Type: Improvement
>    Affects Versions: v0.4.0
>            Reporter: Hao Chen
>            Assignee: Hao Chen
>             Fix For: v0.5.0
>
>
> h2. Done
> * Fix AggregateResultCallback test case
> * Fix configuration and Unit test on hbase
> * Support GenericInMemoryAggregateQuery when coprocessor is not enabled and faster-xml
as default json library
> * Fix unit test: TestGenericServiceAPIResponseEntity
> h2. TODO
> * Fix coprocessor-based aggregation query.



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