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From aaron morton <aa...@thelastpickle.com>
Subject Re: Cassandra encountered an internal error processing this request: TApplicationError type: 6 message:Internal error
Date Thu, 04 Aug 2011 22:26:11 GMT
The error log will contain a call stack, we need that. 

e.g. 

Failed with exception java.io.IOException:java.lang.NullPointerException
ERROR 15:22:33,528 Failed with exception java.io.IOException:java.lang.NullPointerException
java.io.IOException: java.lang.NullPointerException
	at org.apache.hadoop.hive.ql.exec.FetchOperator.getNextRow(FetchOperator.java:341)
	at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:133)
	at org.apache.hadoop.hive.ql.Driver.getResults(Driver.java:1114)
	at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:187)
	at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:241)
	at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:456)
	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.apache.hadoop.util.RunJar.main(RunJar.java:156)
Caused by: java.lang.NullPointerException
	at org.apache.cassandra.hadoop.ColumnFamilyRecordReader.getCurrentKey(ColumnFamilyRecordReader.java:82)
	at org.apache.cassandra.hadoop.ColumnFamilyRecordReader.getCurrentKey(ColumnFamilyRecordReader.java:53)
	at org.apache.hadoop.hive.cassandra.input.HiveCassandraStandardColumnInputFormat$2.next(HiveCassandraStandardColumnInputFormat.java:164)
	at org.apache.hadoop.hive.cassandra.input.HiveCassandraStandardColumnInputFormat$2.next(HiveCassandraStandardColumnInputFormat.java:111)
	at org.apache.hadoop.hive.ql.exec.FetchOperator.getNextRow(FetchOperator.java:326)
	... 10 more

Cheers

-----------------
Aaron Morton
Freelance Cassandra Developer
@aaronmorton
http://www.thelastpickle.com

On 4 Aug 2011, at 15:26, Dikang Gu wrote:

> Yes, I do find the error log! 
> 
> ERROR [pool-2-thread-63] 2011-08-04 13:23:54,138 Cassandra.java (line 3210) Internal
error processing get_range_slices
> java.lang.NullPointerException
> 
> I'm using the cassandra-0.8.1, is this a known bug?
> 
> Thanks.
> 
> -- 
> Dikang Gu
> 0086 - 18611140205
> On Wednesday, August 3, 2011 at 7:53 PM, aaron morton wrote:
> 
>> There really should be something logged at the ERROR level in the server side log,
that error is raised when an unhanded exception bubbles out to the thrift layer on the server.

>> 
>> Double check the logging is configured correctly. 
>> 
>> Cheers
>> 
>> -----------------
>> Aaron Morton
>> Freelance Cassandra Developer
>> @aaronmorton
>> http://www.thelastpickle.com
>> 
>> On 3 Aug 2011, at 14:19, Dikang Gu wrote:
>> 
>>> I got this error when processing a lot operations….
>>> 
>>> 2011-08-03 11:26:35,786 ERROR [com.iw.nebula.dao.simpledb.SimpleDBAdapter] -
<Cassandra encountered an internal error processing this request: TApplicationError type:
6 message:Internal error processing batch_mutate>
>>> 
>>> 2011-08-03 11:48:21,998 ERROR [com.iw.nebula.dao.simpledb.SimpleDBAdapter] -
<Cassandra encountered an internal error processing this request: TApplicationError type:
6 message:Internal error processing get_range_slices>
>>> 
>>> I did not see anything wrong in the cassandra/system.log
>>> 
>>> What's your suggestions?
>>> 
>>> -- 
>>> Dikang Gu
>>> 0086 - 18611140205
> 


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