Unfortunately DSE 4.5.0 is still on 2.0.x -- Brice
On Fri, Sep 26, 2014 at 7:40 PM, Jonathan Haddad <j...@jonhaddad.com> wrote: > Are you using Cassandra 2.0 & vnodes? If so, repair takes forever. > This problem is addressed in 2.1. > > On Fri, Sep 26, 2014 at 9:52 AM, Gene Robichaux > <gene.robich...@match.com> wrote: > > I am fairly new to Cassandra. We have a 9 node cluster, 5 in one DC and > 4 in > > another. > > > > > > > > Running a repair on a large column family seems to be moving much slower > > than I expect. > > > > > > > > Looking at nodetool compaction stats it indicates the Validation phase is > > running that the total bytes is 4.5T (4505336278756). > > > > > > > > This is a very large CF. The process has been running for 2.5 hours and > has > > processed 71G (71950433062). That rate is about 28.4 GB per hour. At this > > rate it will take 158 hours, just shy of 1 week. > > > > > > > > Is this reasonable? This is my first large repair and I am wondering if > this > > is normal for a CF of this size. Seems like a long time to me. > > > > > > > > Is it possible to tune this process to speed it up? Is there something > in my > > configuration that could be causing this slow performance? I am running > > HDDs, not SSDs in a JBOD configuration. > > > > > > > > > > > > > > > > Gene Robichaux > > > > Manager, Database Operations > > > > Match.com > > > > 8300 Douglas Avenue I Suite 800 I Dallas, TX 75225 > > > > Phone: 214-576-3273 > > > > > > > > -- > Jon Haddad > http://www.rustyrazorblade.com > twitter: rustyrazorblade >
