Hi! Maybe I didn't understand, but if you use Hector's addColumnFamily(CF, true); it should wait for schema agreement. Will that solve your problem?
Thanks *Tamar Fraenkel * Senior Software Engineer, TOK Media [image: Inline image 1] ta...@tok-media.com Tel: +972 2 6409736 Mob: +972 54 8356490 Fax: +972 2 5612956 On Tue, Mar 6, 2012 at 7:55 PM, Jeremiah Jordan < jeremiah.jor...@morningstar.com> wrote: > That is the best one I have found. > > > On 03/01/2012 03:12 PM, Tharindu Mathew wrote: > > There are 2. I'd like to wait till there are one, when I insert the value. > > Going through the code, calling client.describe_schema_versions() seems to > give a good answer to this. And I discovered that if I wait till there is > only 1 version, I will not get this error. > > Is this the best practice if I want to check this programatically? > > On Thu, Mar 1, 2012 at 11:15 PM, aaron morton <aa...@thelastpickle.com>wrote: > >> use describe cluster in the CLI to see how many schema versions there >> are. >> >> Cheers >> >> ----------------- >> Aaron Morton >> Freelance Developer >> @aaronmorton >> http://www.thelastpickle.com >> >> On 2/03/2012, at 12:25 AM, Tharindu Mathew wrote: >> >> >> >> On Thu, Mar 1, 2012 at 11:47 AM, Tharindu Mathew <mcclou...@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.jor...@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:mcclou...@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/ >> >> >> > > > -- > Regards, > > Tharindu > > blog: http://mackiemathew.com/ > >
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