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From "Bingbing Liu" <rucb...@gmail.com>
Subject Re: Re: word_count example fails in multi-node configuration
Date Tue, 30 Nov 2010 01:20:55 GMT
try the OrderPreservingPartitioner


2010-11-30 



Bingbing Liu 



发件人: RS 
发送时间: 2010-11-30  09:14:38 
收件人: user 
抄送: 
主题: Re: word_count example fails in multi-node configuration 
 
It occurs in 0.7 beta 3 and 0.7.0 rc 1.
Thank you, Jeremy. I will follow the ticket.
-Roman
On Tue, Nov 30, 2010 at 2:50 AM, Jeremy Hanna
<jeremy.hanna1234@gmail.com> wrote:
> Roman:
>
> I commented on the ticket - would you mind answering on there?  https://issues.apache.org/jira/browse/CASSANDRA-1787
>
> Tx,
>
> Jeremy
>
> On Nov 29, 2010, at 3:14 AM, RS wrote:
>
>> Hi guys,
>>
>> I am trying to run word_count example from contrib directory (0.7 beta
>> 3 and 0.7.0 rc 1).
>> It works fine in a single-node configuration, but fails with 2+ nodes.
>>
>> It fails in the assert statement, which caused problems before
>> (https://issues.apache.org/jira/browse/CASSANDRA-1700).
>>
>> Here's a simple ring I have and error messages.
>> ---
>> Address         Status State   Load            Owns    Token
>>
>> 143797990709940316224804537595633718982
>> 127.0.0.2       Up     Normal  40.2 KB         51.38%
>> 61078635599166706937511052402724559481
>> 127.0.0.1       Up     Normal  36.01 KB        48.62%
>> 143797990709940316224804537595633718982
>> ---
>> [SERVER SIDE]
>>
>> ERROR 17:39:57,098 Fatal exception in thread Thread[ReadStage:4,5,main]
>> java.lang.AssertionError:
>> (143797990709940316224804537595633718982,61078635599166706937511052402724559481]
>>       at org.apache.cassandra.db.ColumnFamilyStore.getRangeSlice(ColumnFamilyStore.java:1273)
>>       at org.apache.cassandra.service.RangeSliceVerbHandler.doVerb(RangeSliceVerbHandler.java:48)
>>       at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:62)
>>       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:619)
>> ---
>> [CLIENT_SIDE]
>> java.lang.RuntimeException: org.apache.thrift.TApplicationException:
>> Internal error processing get_range_slices
>>       at org.apache.cassandra.hadoop.ColumnFamilyRecordReader$RowIterator.maybeInit(ColumnFamilyRecordReader.java:277)
>>       at org.apache.cassandra.hadoop.ColumnFamilyRecordReader$RowIterator.computeNext(ColumnFamilyRecordReader.java:292)
>>       at org.apache.cassandra.hadoop.ColumnFamilyRecordReader$RowIterator.computeNext(ColumnFamilyRecordReader.java:189)
>>       at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:136)
>>       at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:131)
>>       at org.apache.cassandra.hadoop.ColumnFamilyRecordReader.nextKeyValue(ColumnFamilyRecordReader.java:148)
>>       at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:423)
>>       at org.apache.hadoop.mapreduce.MapContext.nextKeyValue(MapContext.java:67)
>>       at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:143)
>>       at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:621)
>>       at org.apache.hadoop.mapred.MapTask.run(MapTask.java:305)
>>       at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:177)
>> Caused by: org.apache.thrift.TApplicationException: Internal error
>> processing get_range_slices
>>       at org.apache.thrift.TApplicationException.read(TApplicationException.java:108)
>>       at org.apache.cassandra.thrift.Cassandra$Client.recv_get_range_slices(Cassandra.java:724)
>>       at org.apache.cassandra.thrift.Cassandra$Client.get_range_slices(Cassandra.java:704)
>>       at org.apache.cassandra.hadoop.ColumnFamilyRecordReader$RowIterator.maybeInit(ColumnFamilyRecordReader.java:255)
>>       ... 11 more
>> ---
>>
>> Looks like tokens used in ColumnFamilySplits
>> (ColumnFamilyInputFormat.java) are on wrapping ranges (left_token >
>> right_token).
>> Any ideas how to fix this?
>>
>> --
>> Regards,
>> Roman
>
>
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