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https://issues.apache.org/jira/browse/IMPALA-609?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong resolved IMPALA-609.
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Resolution: Cannot Reproduce
> Impala should provide a more accurate error message when region server is
> unhealthy - fails with NoClassDefFoundError
> ---------------------------------------------------------------------------------------------------------------------
>
> Key: IMPALA-609
> URL: https://issues.apache.org/jira/browse/IMPALA-609
> Project: IMPALA
> Issue Type: Improvement
> Components: Frontend
> Affects Versions: Impala 1.1
> Environment: CentOS release 6.4 (Final)
> CDH: CDH 4.4.0-1.cdh4.4.0.p0.39
> JDK: java version "1.7.0_21"
> Reporter: Tony Xu
> Priority: Minor
> Labels: impala
>
> When running query in Impala (Command line) "select name from product where
> manufacturername = "Cat's Pride" limit 1;", Impala returns error message:
> "org.apache.hadoop.ipc.RemoteException(java.lang.NoClassDefFoundError): IPC
> server unable to read call parameters: Could not initialize class
> org.apache.hadoop.hbase.util.Classes"
> Note:
> 1. Basic "select * from table_name limit 1;" works in both command line and
> Hue Impala UI.
> 2. We used CM to install Impala, "All Services" -> "Actions" -> "Add a
> Service" -> Then choose Impala for the initial installation then updated
> through "Parcels" interface.
> 3. The same query works in hive.
> Cause:
> One of the "region server" couldn't talk to the Hbase master, there are also
> error messages in Hbase log file on the problematic node. The error message I
> caught from Hbase log is:
> =================================
> WARN org.apache.hadoop.ipc.HBaseServer: Unable to read call parameters for
> client 10.6.70.3.
> =================================
> 10.6.70.3 is the Hbase master's IP address.
> Impala should have failed with a better error message than
> "NoClassDefFoundError".
> Impala log:
> http://paste.ubuntu.com/6179531/
> Hbase unhealthy canary report log:
> http://paste.ubuntu.com/6179569/
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