Re: problem about bootstrapping when used in huge node

2010-02-23 Thread Jonathan Ellis
For Michael, I think raid5 is not a bad choice: - if you're going to have multiple TB of data, using JBOD gives a pretty harsh limit to your compaction/anticompaction scenarios - he is concerned about his data set size, so so raid 1 or 10 "wastes" space - raid0 is potentially painful since you'd

Re: problem about bootstrapping when used in huge node

2010-02-23 Thread Brandon Williams
On Tue, Feb 23, 2010 at 7:31 AM, Jonathan Ellis wrote: > > (2) How to use node has 12 1TB disk?? > > You should use a better filesystem than ext3. :) We use xfs at rackspace. Also, don't use RAID5. Let Cassandra's replication handle disk failure scenarios instead, and supply multiple Data

Re: problem about bootstrapping when used in huge node

2010-02-23 Thread Jonathan Ellis
On Tue, Feb 23, 2010 at 12:33 AM, Michael Lee wrote: > (1) A cluster cannot be enlarge(add more node into cluster) if it > already used more than half capacity: > > If every node has data more than it’s half capacity , the admin may not > bootstrapping new node into cluster, > > because old no