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From Tharindu Mathew <mcclou...@gmail.com>
Subject Re: Schema change causes exception when adding data
Date Thu, 01 Mar 2012 06:17:35 GMT
Jeremiah,

Thanks for the reply.

This is what we have been doing, but it's not reliable as we don't know a
definite time that the schema would get replicated. Is there any way I can
know for sure that changes have propagated.

Then I can block the insertion of data until then.

On Thu, Mar 1, 2012 at 4:33 AM, Jeremiah Jordan <
JEREMIAH.JORDAN@morningstar.com> wrote:

>  The error is that the specified colum family doesn’t exist.  If you
> connect with the CLI and describe the keyspace does it show up?  Also,
> after adding a new column family programmatically you can’t use it
> immediately, you have to wait for it to propagate.  You can use calls to
> describe schema to do so, keep calling it until every node is on the same
> schema.****
>
> ** **
>
> -Jeremiah****
>
> ** **
>
> *From:* Tharindu Mathew [mailto:mccloud35@gmail.com]
> *Sent:* Wednesday, February 29, 2012 8:27 AM
> *To:* user
> *Subject:* Schema change causes exception when adding data****
>
> ** **
>
> Hi,
>
> I have a 3 node cluster and I'm dynamically updating a keyspace with a new
> column family. Then, when I try to write records to it I get the following
> exception shown at [1].
>
> How do I avoid this. I'm using Hector and the default consistency level of
> QUORUM is used. Cassandra version 0.7.8. Replication Factor is 1.
>
> How can I solve my problem?****
>
> [1] -
> me.prettyprint.hector.api.exceptions.HInvalidRequestException:
> InvalidRequestException(why:unconfigured columnfamily proxySummary)****
>
> at
> me.prettyprint.cassandra.service.ExceptionsTranslatorImpl.translate(ExceptionsTranslatorImpl.java:42)
> ****
>
> at
> me.prettyprint.cassandra.service.KeyspaceServiceImpl$10.execute(KeyspaceServiceImpl.java:397)
> ****
>
> at
> me.prettyprint.cassandra.service.KeyspaceServiceImpl$10.execute(KeyspaceServiceImpl.java:383)
> ****
>
> at
> me.prettyprint.cassandra.service.Operation.executeAndSetResult(Operation.java:101)
> ****
>
> at
> me.prettyprint.cassandra.connection.HConnectionManager.operateWithFailover(HConnectionManager.java:156)
> ****
>
> at
> me.prettyprint.cassandra.service.KeyspaceServiceImpl.operateWithFailover(KeyspaceServiceImpl.java:129)
> ****
>
> at
> me.prettyprint.cassandra.service.KeyspaceServiceImpl.multigetSlice(KeyspaceServiceImpl.java:401)
> ****
>
> at
> me.prettyprint.cassandra.model.thrift.ThriftMultigetSliceQuery$1.doInKeyspace(ThriftMultigetSliceQuery.java:67)
> ****
>
> at
> me.prettyprint.cassandra.model.thrift.ThriftMultigetSliceQuery$1.doInKeyspace(ThriftMultigetSliceQuery.java:59)
> ****
>
> at
> me.prettyprint.cassandra.model.KeyspaceOperationCallback.doInKeyspaceAndMeasure(KeyspaceOperationCallback.java:20)
> ****
>
> at
> me.prettyprint.cassandra.model.ExecutingKeyspace.doExecute(ExecutingKeyspace.java:72)
> ****
>
> at
> me.prettyprint.cassandra.model.thrift.ThriftMultigetSliceQuery.execute(ThriftMultigetSliceQuery.java:58)
> ****
>
>
>
> --
> Regards,
>
> Tharindu****
>
> ** **
>
> blog: http://mackiemathew.com/****
>
> ** **
>



-- 
Regards,

Tharindu

blog: http://mackiemathew.com/

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