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From "Julian Wissmann (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6669) Add BigDecimalColumnInterpreter for doing aggregations using AggregationClient
Date Thu, 20 Sep 2012 15:06:07 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13459648#comment-13459648
] 

Julian Wissmann commented on HBASE-6669:
----------------------------------------

I've written a Test for BDColumnInterpreter, however, all Medium Tests requiring MiniDFSCluster
fail on my machine:

-------------------------------------------------------------------------------
Test set: org.apache.hadoop.hbase.coprocessor.TestAggregateProtocol
-------------------------------------------------------------------------------
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 3.239 sec <<< FAILURE!
org.apache.hadoop.hbase.coprocessor.TestAggregateProtocol  Time elapsed: 0.001 sec  <<<
ERROR!
java.lang.NullPointerException
        at org.apache.hadoop.hdfs.MiniDFSCluster.startDataNodes(MiniDFSCluster.java:422)
        at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:280)
        at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniDFSCluster(HBaseTestingUtility.java:433)
        at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:653)
        at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:603)
        at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:590)
        at org.apache.hadoop.hbase.coprocessor.TestAggregateProtocol.setupBeforeClass(TestAggregateProtocol.java:77)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
        at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
        at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
        at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
        at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
        at org.junit.runners.Suite.runChild(Suite.java:128)
        at org.junit.runners.Suite.runChild(Suite.java:24)
        at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
        at java.util.concurrent.FutureTask.run(FutureTask.java:138)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)

Therefor I have not been able to do a run of my test, so far. I can however attach it here,
if someone who does not run into this problem is willing to give it a try.
                
> Add BigDecimalColumnInterpreter for doing aggregations using AggregationClient
> ------------------------------------------------------------------------------
>
>                 Key: HBASE-6669
>                 URL: https://issues.apache.org/jira/browse/HBASE-6669
>             Project: HBase
>          Issue Type: New Feature
>          Components: client, coprocessors
>            Reporter: Anil Gupta
>            Priority: Minor
>              Labels: client, coprocessors
>         Attachments: BigDecimalColumnInterpreter.java, BigDecimalColumnInterpreter.patch,
BigDecimalColumnInterpreter.patch
>
>
> I recently created a Class for doing aggregations(sum,min,max,std) on values stored as
BigDecimal in HBase. I would like to commit the BigDecimalColumnInterpreter into HBase. In
my opinion this class can be used by a wide variety of users. Please let me know if its not
appropriate to add this class in HBase.
> Thanks,
> Anil Gupta
> Software Engineer II, Intuit, Inc 

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