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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: error using get_range_slice with random partitioner
Date Thu, 05 Aug 2010 16:16:12 GMT
can you reproduce starting with a fresh install, no existing data?

On Thu, Aug 5, 2010 at 12:09 PM, Adam Crain
<adam.crain@greenenergycorp.com> wrote:
> I've never changed the partitioner from the default random. Other ideas?
>
> I can insert and do column queries using a single key but not range on CF.
>
> -Adam
>
> -----Original Message-----
> From: Jonathan Ellis [mailto:jbellis@gmail.com]
> Sent: Thursday, August 05, 2010 11:33 AM
> To: user@cassandra.apache.org
> Subject: Re: error using get_range_slice with random partitioner
>
> Yes, you should be able to use get_range_slices with RP.
>
> This stack trace looks like you changed your partitioner after the
> node already had data in it.
>
> On Thu, Aug 5, 2010 at 10:06 AM, Adam Crain
> <adam.crain@greenenergycorp.com> wrote:
>> Hi,
>>
>> I'm on 0.6.4. Previous tickets in the JIRA in searching the web indicated
>> that iterating over the keys in keyspace is possible, even with the random
>> partitioner. This is mostly desirable in my case for testing purposes only.
>>
>> I get the following error:
>>
>> [junit] Internal error processing get_range_slices
>> [junit] org.apache.thrift.TApplicationException: Internal error processing
>> get_range_slices
>>
>> and the following server traceback:
>>
>> java.lang.NumberFormatException: Zero length BigInteger
>>         at java.math.BigInteger.<init>(BigInteger.java:295)
>>         at java.math.BigInteger.<init>(BigInteger.java:467)
>>         at
>> org.apache.cassandra.dht.RandomPartitioner$1.fromString(RandomPartitioner.java:100)
>>         at
>> org.apache.cassandra.thrift.CassandraServer.getRangeSlicesInternal(CassandraServer.java:575)
>>
>> I am using the scala cascal client, but am sure that get_range_slice is
>> being called with start and stop set to "".
>>
>> 1) Is batch iteration possible with random partioner?
>>
>> This isn't clear from the FAQ entry on the subject:
>>
>> http://wiki.apache.org/cassandra/FAQ#iter_world
>>
>> 2) The FAQ states that start argument should be "". What should the end
>> argument be?
>>
>> thanks!
>> Adam
>>
>>
>
>
>
> --
> Jonathan Ellis
> Project Chair, Apache Cassandra
> co-founder of Riptano, the source for professional Cassandra support
> http://riptano.com
>
>
>
>



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com

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