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From aaron morton <aa...@thelastpickle.com>
Subject Re: Start token sorts after end token
Date Fri, 01 Feb 2013 04:16:08 GMT
Out of interest do you have the ticket?

A

-----------------
Aaron Morton
Freelance Cassandra Developer
New Zealand

@aaronmorton
http://www.thelastpickle.com

On 31/01/2013, at 3:19 AM, Edward Capriolo <edlinuxguru@gmail.com> wrote:

> Fix is simply to switch to random partitioner.
> 
> On Wednesday, January 30, 2013, Edward Capriolo <edlinuxguru@gmail.com> wrote:
> > This was unexpected fallout fro the change to murmur partitioner. A jira is open
but if you need map red murmers is currently out of the question.
> >
> > On Wednesday, January 30, 2013, Tejas Patil <tejas.patil.cs@gmail.com> wrote:
> >> While reading data from Cassandra in map-reduce, I am getting "InvalidRequestException(why:Start
token sorts after end token)"
> >> Below is the code snippet that I used and the entire stack trace.
> >> (I am using Cassandra 1.2.0 and hadoop 0.20.2)
> >> Can you point out the issue here ?
> >> Code snippet:
> >>    SlicePredicate predicate = new SlicePredicate();
> >>     SliceRange sliceRange = new SliceRange();
> >>     sliceRange.start = ByteBuffer.wrap(("1".getBytes()));
> >>     sliceRange.finish = ByteBuffer.wrap(("1000000".getBytes()));
> >>     sliceRange.reversed = false;
> >>     //    predicate.slice_range = sliceRange;
> >>     List<ByteBuffer> colNames = new ArrayList<ByteBuffer>();
> >>     colNames.add(ByteBuffer.wrap("url".getBytes()));
> >>     colNames.add(ByteBuffer.wrap("Parent".getBytes()));
> >>     predicate.column_names = colNames;
> >>     ConfigHelper.setInputSlicePredicate(job.getConfiguration(), predicate);
> >> Full stack trace:
> >> java.lang.RuntimeException: InvalidRequestException(why:Start token sorts after
end token)
> >> at org.apache.cassandra.hadoop.ColumnFamilyRecordReader$StaticRowIterator.maybeInit(ColumnFamilyRecordReader.java:384)
> >> at org.apache.cassandra.hadoop.ColumnFamilyRecordReader$StaticRowIterator.computeNext(ColumnFamilyRecordReader.java:390)
> >> at org.apache.cassandra.hadoop.ColumnFamilyRecordReader$StaticRowIterator.computeNext(ColumnFamilyRecordReader.java:313)
> >> at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:143)
> >> at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:138)
> >> at org.apache.cassandra.hadoop.ColumnFamilyRecordReader.nextKeyValue(ColumnFamilyRecordReader.java:184)
> >> at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:456)
> >> 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:
> >>


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