This really depends on how you design your Hadoop Cluster. The testing I have done, had Hadoop and Cassandra Nodes collocated on the same hosts. Remember that Pig code runs inside of your hadoop cluster, and connects to Cassandra as the Database engine.
I have not done any testing with Hive, so someone else will have to answer that question. From: <cscetbon....@orange.com> Reply-To: <user@cassandra.apache.org> Date: Thursday, January 17, 2013 8:58 AM To: "user@cassandra.apache.org" <user@cassandra.apache.org> Subject: Re: Pig / Map Reduce on Cassandra Jimmy, I understand that CFS can replace HDFS for those who use Hadoop. I just want to use pig and hive on cassandra. I know that pig samples are provided and work now with cassandra natively (they are part of the core). However, does it mean that the process will be spread over nodes with number_of_mapper=number_of_nodes or something like that ? Can Hive connect to Cassandra 1.2 easily too ? -- Cyril Scetbon On Jan 17, 2013, at 2:42 PM, James Schappet <jschap...@gmail.com> wrote: > CFS is Cassandra File System: > http://www.datastax.com/dev/blog/cassandra-file-system-design > > > But you don't need CFS to connect from PIG to Cassandra. The latest versions > of Cassandra Source ship with examples of connecting from pig to cassandra. > > > apache-cassandra-1.2.0-src/examples/pig -- > http://www.apache.org/dyn/closer.cgi?path=/cassandra/1.2.0/apache-cassandra-1. > 2.0-src.tar.gz > > --Jimmy > > > From: <cscetbon....@orange.com> > Reply-To: <user@cassandra.apache.org> > Date: Thursday, January 17, 2013 6:35 AM > To: "user@cassandra.apache.org" <user@cassandra.apache.org> > Subject: Re: Pig / Map Reduce on Cassandra > > what do you mean ? it's not needed by Pig or Hive to access Cassandra data. > > Regards > > On Jan 16, 2013, at 11:14 PM, Brandon Williams <dri...@gmail.com> wrote: > >> You won't get CFS, >> but it's not a hard requirement, either. > > ______________________________________________________________________________ > ___________________________________________ > > Ce message et ses pieces jointes peuvent contenir des informations > confidentielles ou privilegiees et ne doivent donc > pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce > message par erreur, veuillez le signaler > a l'expediteur et le detruire ainsi que les pieces jointes. Les messages > electroniques etant susceptibles d'alteration, > France Telecom - Orange decline toute responsabilite si ce message a ete > altere, deforme ou falsifie. Merci. > > This message and its attachments may contain confidential or privileged > information that may be protected by law; > they should not be distributed, used or copied without authorisation. > If you have received this email in error, please notify the sender and delete > this message and its attachments. > As emails may be altered, France Telecom - Orange is not liable for messages > that have been modified, changed or falsified. > Thank you. ____________________________________________________________________________ _____________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration, France Telecom - Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci. This message and its attachments may contain confidential or privileged information that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and delete this message and its attachments. As emails may be altered, France Telecom - Orange is not liable for messages that have been modified, changed or falsified. Thank you.
