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Posted to user@cassandra.apache.org by Brad Willard <in...@bradwillard.com> on 2011/04/26 19:27:41 UTC
Cluster Installation Verification
I'm trying to setup a cassandra cluster with 0.7.4 on 4 nodes. I
initially did a single server test that went beautifully with a test
that inserted 16 million rows with no issues. However when I tried to
create a 4 node cluster I've been seeing weird behavior. I seem to be
able to run my same test without errors, however when I use the
cassanda-cli to look at the data, it appears as though nothing has
been inserted. I verified the server I've connected to, verified the
correct keyspace and column family. I've already used the nodetool to
verify all the other servers are listed in the ring.
I followed these instructions for the setup:
http://wiki.apache.org/cassandra/MultinodeCluster
So how can I verify my cluster is working correctly? Any help would
be amazing as I'm evaluating this for my company.
Thanks,
Brad
Re: Cluster Installation Verification
Posted by aaron morton <aa...@thelastpickle.com>.
Does not look like there is much data in there :)
Also don't forget to use the datatype functions in the cli to match what your app is doing, see help for more details.
e.g. get MyCf[uuid('something-that-looks-llike-a-uuid')]
Also the ring is unbalanced (the Owns column), you will want to assign the nodes an initial token so they each take the same portion of the data.
see http://wiki.apache.org/cassandra/Operations#Load_balancing
Hope that helps.
Aaron
On 27 Apr 2011, at 07:14, Brad Willard wrote:
> The setup is 10.11.6.9 as the seed and the other three nodes
> bootstrapped. I attached two cassandra.yaml files, the config of the
> seed, and the config of one of the cluster nodes.
>
> Ring output
> /opt/cassandra/apache-cassandra-0.7.4# ./bin/nodetool -h 10.11.6.9 ring
> Address Status State Load Owns Token
>
> 133836233891526335447940652806240328892
> 10.11.6.9 Up Normal 42.53 KB 50.00%
> 48765642161291719582097000948298276028
> 10.11.6.26 Up Normal 42.71 KB 12.50%
> 70033290093850373548557913912783789244
> 10.11.6.11 Up Normal 42.67 KB 12.50%
> 91300938026409027515018826877269302460
> 10.11.6.10 Up Normal 42.64 KB 25.00%
> 133836233891526335447940652806240328892
>
> Replicate Strategy is whatever is default, I'm not sure how to set it.
> The consistency leve in the client is set to one.
>
> Thanks,
> Brad
>
> On Tue, Apr 26, 2011 at 2:25 PM, Jonathan Colby
> <jo...@gmail.com> wrote:
>> What replication strategy did you use? how does the ring look? were the newly added nodes bootstrapped? is 1 or more nodes listed as a seed?
>>
>> Lots of questions. but maybe you could post your cassandra.yaml here and we can take a look at it.
>>
>> The output of nodetool ring would also be good.
>>
>> Jon
>>
>> On Apr 26, 2011, at 7:27 PM, Brad Willard wrote:
>>
>>> I'm trying to setup a cassandra cluster with 0.7.4 on 4 nodes. I
>>> initially did a single server test that went beautifully with a test
>>> that inserted 16 million rows with no issues. However when I tried to
>>> create a 4 node cluster I've been seeing weird behavior. I seem to be
>>> able to run my same test without errors, however when I use the
>>> cassanda-cli to look at the data, it appears as though nothing has
>>> been inserted. I verified the server I've connected to, verified the
>>> correct keyspace and column family. I've already used the nodetool to
>>> verify all the other servers are listed in the ring.
>>>
>>> I followed these instructions for the setup:
>>> http://wiki.apache.org/cassandra/MultinodeCluster
>>>
>>> So how can I verify my cluster is working correctly? Any help would
>>> be amazing as I'm evaluating this for my company.
>>>
>>> Thanks,
>>> Brad
>>
>>
> <cassandra.nonseed.yaml><cassandra.seed.yaml>
Re: Cluster Installation Verification
Posted by Brad Willard <in...@bradwillard.com>.
The setup is 10.11.6.9 as the seed and the other three nodes
bootstrapped. I attached two cassandra.yaml files, the config of the
seed, and the config of one of the cluster nodes.
Ring output
/opt/cassandra/apache-cassandra-0.7.4# ./bin/nodetool -h 10.11.6.9 ring
Address Status State Load Owns Token
133836233891526335447940652806240328892
10.11.6.9 Up Normal 42.53 KB 50.00%
48765642161291719582097000948298276028
10.11.6.26 Up Normal 42.71 KB 12.50%
70033290093850373548557913912783789244
10.11.6.11 Up Normal 42.67 KB 12.50%
91300938026409027515018826877269302460
10.11.6.10 Up Normal 42.64 KB 25.00%
133836233891526335447940652806240328892
Replicate Strategy is whatever is default, I'm not sure how to set it.
The consistency leve in the client is set to one.
Thanks,
Brad
On Tue, Apr 26, 2011 at 2:25 PM, Jonathan Colby
<jo...@gmail.com> wrote:
> What replication strategy did you use? how does the ring look? were the newly added nodes bootstrapped? is 1 or more nodes listed as a seed?
>
> Lots of questions. but maybe you could post your cassandra.yaml here and we can take a look at it.
>
> The output of nodetool ring would also be good.
>
> Jon
>
> On Apr 26, 2011, at 7:27 PM, Brad Willard wrote:
>
>> I'm trying to setup a cassandra cluster with 0.7.4 on 4 nodes. I
>> initially did a single server test that went beautifully with a test
>> that inserted 16 million rows with no issues. However when I tried to
>> create a 4 node cluster I've been seeing weird behavior. I seem to be
>> able to run my same test without errors, however when I use the
>> cassanda-cli to look at the data, it appears as though nothing has
>> been inserted. I verified the server I've connected to, verified the
>> correct keyspace and column family. I've already used the nodetool to
>> verify all the other servers are listed in the ring.
>>
>> I followed these instructions for the setup:
>> http://wiki.apache.org/cassandra/MultinodeCluster
>>
>> So how can I verify my cluster is working correctly? Any help would
>> be amazing as I'm evaluating this for my company.
>>
>> Thanks,
>> Brad
>
>
Re: Cluster Installation Verification
Posted by Jonathan Colby <jo...@gmail.com>.
What replication strategy did you use? how does the ring look? were the newly added nodes bootstrapped? is 1 or more nodes listed as a seed?
Lots of questions. but maybe you could post your cassandra.yaml here and we can take a look at it.
The output of nodetool ring would also be good.
Jon
On Apr 26, 2011, at 7:27 PM, Brad Willard wrote:
> I'm trying to setup a cassandra cluster with 0.7.4 on 4 nodes. I
> initially did a single server test that went beautifully with a test
> that inserted 16 million rows with no issues. However when I tried to
> create a 4 node cluster I've been seeing weird behavior. I seem to be
> able to run my same test without errors, however when I use the
> cassanda-cli to look at the data, it appears as though nothing has
> been inserted. I verified the server I've connected to, verified the
> correct keyspace and column family. I've already used the nodetool to
> verify all the other servers are listed in the ring.
>
> I followed these instructions for the setup:
> http://wiki.apache.org/cassandra/MultinodeCluster
>
> So how can I verify my cluster is working correctly? Any help would
> be amazing as I'm evaluating this for my company.
>
> Thanks,
> Brad