Thanks Ankur, But I grabbed some keys from the Spark results and ran "nodetool -h.... getendpoints ...." and it showed the data is coming from at least 2 nodes? Regards, Alaa
On Thu, Sep 3, 2015 at 12:06 PM, Ankur Srivastava < ankur.srivast...@gmail.com> wrote: > Hi Alaa, > > Partition when using CassandraRDD depends on your partition key in > Cassandra table. > > If you see only 1 partition in the RDD it means all the rows you have > selected have same partition_key in C* > > Thanks > Ankur > > > On Thu, Sep 3, 2015 at 11:54 AM, Alaa Zubaidi (PDF) <alaa.zuba...@pdf.com> > wrote: > >> Hi, >> >> I testing Spark and Cassandra, Spark 1.4, Cassandra 2.1.7 cassandra spark >> connector 1.4, running in standalone mode. >> >> I am getting 4000 rows from Cassandra (4mb row), where the row keys are >> random. >> ...... sc.cassandraTable[RES](keyspace,res_name).where(res_where).cache >> >> I am expecting that it will generate few partitions. >> However, I can ONLY see 1 partition. >> I cached the CassandraRDD and in the UI storage tab it shows ONLY 1 >> partition. >> >> Any idea, why I am getting 1 partition? >> >> Thanks, >> Alaa >> >> >> >> *This message may contain confidential and privileged information. If it >> has been sent to you in error, please reply to advise the sender of the >> error and then immediately permanently delete it and all attachments to it >> from your systems. If you are not the intended recipient, do not read, >> copy, disclose or otherwise use this message or any attachments to it. The >> sender disclaims any liability for such unauthorized use. PLEASE NOTE that >> all incoming e-mails sent to PDF e-mail accounts will be archived and may >> be scanned by us and/or by external service providers to detect and prevent >> threats to our systems, investigate illegal or inappropriate behavior, >> and/or eliminate unsolicited promotional e-mails (“spam”). If you have any >> concerns about this process, please contact us at * >> *legal.departm...@pdf.com* <legal.departm...@pdf.com>*.* > > > -- Alaa Zubaidi PDF Solutions, Inc. 333 West San Carlos Street, Suite 1000 San Jose, CA 95110 USA Tel: 408-283-5639 fax: 408-938-6479 email: alaa.zuba...@pdf.com -- *This message may contain confidential and privileged information. If it has been sent to you in error, please reply to advise the sender of the error and then immediately permanently delete it and all attachments to it from your systems. If you are not the intended recipient, do not read, copy, disclose or otherwise use this message or any attachments to it. The sender disclaims any liability for such unauthorized use. PLEASE NOTE that all incoming e-mails sent to PDF e-mail accounts will be archived and may be scanned by us and/or by external service providers to detect and prevent threats to our systems, investigate illegal or inappropriate behavior, and/or eliminate unsolicited promotional e-mails (“spam”). If you have any concerns about this process, please contact us at * *legal.departm...@pdf.com* <legal.departm...@pdf.com>*.*
