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From Tharindu Mathew <mcclou...@gmail.com>
Subject Re: Schema change causes exception when adding data
Date Thu, 01 Mar 2012 11:25:38 GMT
On Thu, Mar 1, 2012 at 11:47 AM, Tharindu Mathew <mccloud35@gmail.com>wrote:

> 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?
>
[Edit: corrected to a question]

>
> 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/
>
>


-- 
Regards,

Tharindu

blog: http://mackiemathew.com/

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