Re: Cassandra disk usage and failure recovery

2011-01-04 Thread Peter Schuller
> That is correct.  In 0.6, an anticompaction was performed and a temporary > SSTable was written out to disk, then streamed to the recipient.  The way > this is now done in 0.7 requires no extra disk space on the source node. Great. So that should at least mean that running out of diskspace shoul

Re: Cassandra disk usage and failure recovery

2011-01-04 Thread Tyler Hobbs
> Anti-compaction and streaming is done to move data from nodes that > have it (that are in the replica set). This implies CPU and I/O and > networking load on the source node, so it does have an impact. See > http://wiki.apache.org/cassandra/Streaming among others. > > (Here's where I'm not sure,

Re: Cassandra disk usage and failure recovery

2011-01-04 Thread Peter Schuller
This will be a very selective response, not at all as exhaustive as it should be to truly cover what you bring up. Sorry, but here goes some random tidbits. > On the cassandra user list, I noticed a thread on a user that literally > wrote his cluster to death.  Correct me if I'm wrong, but based o