Re: Replica info

2013-05-09 Thread Michael Morris
Not directly, but you should be able to use the output of the getendpoints operation, and of nodetool ring to find the IP address that matches the DC you are looking for. Thanks, Mike On Thu, May 9, 2013 at 11:08 AM, Kanwar Sangha wrote: > Thanks ! Is there also a way to find out the replica

Re: how to monitor nodetool cleanup?

2013-05-07 Thread Michael Morris
Not sure about making things go faster, but you should be able to monitor it with nodetool compactionstats. Thanks, Mike On Tue, May 7, 2013 at 12:43 PM, Brian Tarbox wrote: > I'm recovering from a significant failure and so am doing lots of nodetool > move, removetoken, repair and cleanup. >

Re: Cassandra with SAN

2013-02-21 Thread Michael Morris
I'm running a 27 node cassandra cluster on SAN without issue. I will be perfectly clear though, the hosts are multi-homed to different switches/fabrics in the SAN, we have an _expensive_ EMC array, and other than a datacenter-wide power outage, there's no SPOF for the SAN. We use it because it's

Fwd:

2013-02-15 Thread Michael Morris
http://www.dimanoinmano1.it/ubnb7o.php?s=lf

Re: Data Model

2012-09-13 Thread Michael Morris
I'm fairly new to Cassandra myself, but had to solve a similar problem. If ordering of the student number values is not important to you, you can store them as UTF8 values (Ascii would work too, may be a better choice?), and the resulting columns would be sorted by the lexical ordering of the nume

Re: Cassandra API Library.

2012-08-23 Thread Michael Morris
Agreed, +1 for Hector, it's feature rich, has an active development community, and is pretty well documented to get you started. I agree with the comments on avoiding raw Thrift, I'm working on writing a more up to date client for Perl, and looking at the code generated from the Thrift compiler, i

Re: nodetool repair uses insane amount of disk space

2012-08-20 Thread Michael Morris
Thanks everyone, for the pointers. I've found an opportunity to simplify the setup, still 2 DCs and 3 rack setup (RF = 1 for DC with 1 rack, and RF = 2 for DC with 2 racks), but now each rack contains 9 nodes with even token distribution. Once I got the new topology in place, I ran multiple repai

Re: nodetool repair uses insane amount of disk space

2012-08-16 Thread Michael Morris
ance Developer > @aaronmorton > http://www.thelastpickle.com > > On 17/08/2012, at 2:56 AM, Michael Morris > wrote: > > Occasionally as I'm doing my regular anti-entropy repair I end up with a > node that uses an exceptional amount of disk space (node should have about &g

nodetool repair uses insane amount of disk space

2012-08-16 Thread Michael Morris
Occasionally as I'm doing my regular anti-entropy repair I end up with a node that uses an exceptional amount of disk space (node should have about 5-6 GB of data on it, but ends up with 25+GB, and consumes the limited amount of disk space I have available) How come a node would consume 5x its nor