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From David Boxenhorn <da...@lookin2.com>
Subject Re: Heterogeneous Cassandra Cluster
Date Wed, 02 Jun 2010 17:30:25 GMT
Our replication factor was 1, so that wasn't the problem. (We tried other
replication factors too, just in case, but it didn't help.)

On Wed, Jun 2, 2010 at 7:51 PM, Nahor
<nahor.j+gmane@gmail.com<nahor.j%2Bgmane@gmail.com>
> wrote:

>  On 2010-06-02 3:18, David Boxenhorn wrote:
>
>> Is it possible to make a heterogeneous Cassandra cluster, with both Linux
>> and Windows nodes? I tried doing it and got
>>
>> Error in ThreadPoolExecutor
>> java.lang.NullPointerException
>>
>> Not sure if this is due to the Linux/Windows mix or something else.
>>
>>
>> Details below:
>>
> [...]
>
>
>>  INFO 21:42:08,091 Bootstrapping
>>
>> ERROR 21:49:03,526 Error in ThreadPoolExecutor
>>
>> java.lang.NullPointerException
>>
>>        at
>> org.apache.cassandra.streaming.StreamInitiateVerbHandler.getNewNames(StreamInitiateVerbHandler.java:154)
>>
>>        at
>> org.apache.cassandra.streaming.StreamInitiateVerbHandler.doVerb(StreamInitiateVerbHandler.java:76)
>>
>>        at
>> org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:40)
>>
>>        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)
>>
>> ERROR 21:49:03,527 Fatal exception in thread
>> Thread[MESSAGE-DESERIALIZER-POOL:1,5,main]
>>
>> java.lang.NullPointerException
>>
>>        at
>> org.apache.cassandra.streaming.StreamInitiateVerbHandler.getNewNames(StreamInitiateVerbHandler.java:154)
>>
>>        at
>> org.apache.cassandra.streaming.StreamInitiateVerbHandler.doVerb(StreamInitiateVerbHandler.java:76)
>>
>>        at
>> org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:40)
>>
>>        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)
>>
>>
>>
> Looks like https://issues.apache.org/jira/browse/CASSANDRA-1136
>
> Make sure you have enough nodes in your cluster to satisfy your replication
> factor before you add any data. This is what seems to be source of the
> problem in my case.
>
> That said, I was also using an heterogeneous system (Linux + Windows) but I
> think I tested it with only Linux nodes too.
>
>
>

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