Re: Moving SSTables from one disk to another

2015-04-10 Thread Robert Coli
On Fri, Apr 10, 2015 at 4:30 PM, Jonathan Haddad wrote: > However, it was pointed out to me that > https://issues.apache.org/jira/browse/CASSANDRA-6696 will be a better > solution in a lot of cases. Thank you for the interesting link about a theoretical usage which would make JBOD worth using.

Re: Moving SSTables from one disk to another

2015-04-10 Thread Jonathan Haddad
I had submitted this issue which could have had (in theory) some serious performance benefit when using JBOD: https://issues.apache.org/jira/browse/CASSANDRA-8868 However, it was pointed out to me that https://issues.apache.org/jira/browse/CASSANDRA-6696 will be a better solution in a lot of cases

Re: Moving SSTables from one disk to another

2015-04-10 Thread Robert Coli
On Fri, Apr 10, 2015 at 4:00 PM, Roman Tkachenko wrote: > * Can I just move some SSTables data files from "sstables2" to "sstables1" > which has much more free disk space? Will Cassandra start fine after that > and not lose any data? > Cassandra generally discovers files in its data directories

Moving SSTables from one disk to another

2015-04-10 Thread Roman Tkachenko
Hey guys, We're running Cassandra with two data directories, let's say /data/sstables1 and /data/sstables2, which are in fact two separate (but identical) disks. The problem is that the disk where "sstables2" is mounted is running out of space and large SSTables stored there cannot be compacted.