RE: Cassandra Performance Testing

2014-01-24 Thread Devin Pinkston
John, Yep that makes perfect sense. Thank you for your time I appreciate it! From: John Anderstedt [mailto:john.anderst...@svenskaspel.se] Sent: Friday, January 24, 2014 9:08 AM To: user@cassandra.apache.org Subject: Re: Cassandra Performance Testing It sounds to me that the limitation in this

Re: Cassandra Performance Testing

2014-01-24 Thread John Anderstedt
It sounds to me that the limitation in this setup is the disks. if it’s in a mirror the cost for write’s is the dubble. If you have the flatfile and the db on the same disk there will be a lot of io wait. There is also a question of diskspace and fragmentation, if the flat file occupies 1,2TB o

Cassandra Performance Testing

2014-01-24 Thread Devin Pinkston
Hello, I am using a single node Cassandra setup with version 2.0.4 to do some simple performance testing. I generated a 1.2TB flat file from DBGEN (TPC-H), and I am loading that into Cassandra. I used the "COPY FROM" method from the CQLSH. My question/problem, the import has been running for