Simple solution is to stop the nodes and delete the contents of the commitlog,
data and saved_caches directories. Normally these are in /var/lib/cassandra
This will give you a clean starting point.
The cli statement is using secondary indexes
http://www.datastax.com/dev/blog/whats-new-cassand
Hi Aaron
Thank you so much for your reply and advice.
I did describe cluster.
Then I found multiple version as following.
[default@unknown] describe cluster;
Cluster Information:
Snitch: org.apache.cassandra.locator.SimpleSnitch
Partitioner: org.apache.cassandra.dht.RandomPartitioner
Sc
If you are getting the "Cluster schema does not agree" then you have a sick
cluster and replication will not be working properly.
Open the cassandra-cli client and type "describe cluster;" you should see a
single schema version such as...
[default@unknown] describe cluster;
Cluster Informatio
Hi Aaron
Thank you so much for your reply and advice.
I watched your presentation. it"s helpful for me.
Anyway I did as following with 2 node servers.(53;1st node,54;2nd node)
I started the following write/read.php program by through Thrift at 53
server.
$users->insert($Key, array('Movie'
What process are you using to confirm the data was replicated to another server
? And what makes you say the data is not replicated ? I think your
understanding of the replication may be a little off, you rarely read from one
node. Have a look at
http://thelastpickle.com/2011/02/07/Introduction
Hi maki-san
I am so sorry this was my mistake.
I expected when I set data at one node, the data should be copied to the
other node
at the same keyspace and same column family by replication.
This replication was working.
I just made a mistake to get data by wrong Key.(First character of key
wa
How do you define your Keyspace?
As you may know, in Cassandra, replication (factor) is defined as the
attribute of Keyspace.
And what do you mean:
> However replication never happened.
> I can't get data I set at other node.
What did you do on cassandra, and what did you get in response?
maki
Hi Sasha
Thank you so much for your advice.
I changed JMX_PORT from 10036 to 8080 in cassandra-env.sh.
Now nodetool ring is working as following.
# nodetool --host **.**.254.54 ring
Address Status State LoadOwnsToken
You need to specify the -jmxport with nodetool
On Mar 19, 2011 2:48 AM, "ko...@vivinavi.com" wrote:
> Hi everyone
>
> I am still new to Cassandra, Thrift.
> But anyway Cassandra 0.7.4, Thrift 0.5.0 are working on java 1.6.0.18 of
> Debian 5.0.7.at single node.
> Then I had to try and check multi n
Hi everyone
I am still new to Cassandra, Thrift.
But anyway Cassandra 0.7.4, Thrift 0.5.0 are working on java 1.6.0.18 of
Debian 5.0.7.at single node.
Then I had to try and check multi node on 2 servers.
(JVM_PORT=10036 on /etc/cassandra-env.sh)
I modified /etc/cassandra/cassandra.yaml as followin
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