Re: nodetool repair & compact

2011-04-06 Thread Watanabe Maki
Thanks a lot. It has became clear for me. From iPhone On 2011/04/06, at 23:51, Sylvain Lebresne wrote: > On Tue, Apr 5, 2011 at 9:03 PM, Maki Watanabe wrote: >> Thanks Sylvain, it's very clear. >> But should I still need to force major compaction regularly to clear >> tombstones? >> I know t

Re: nodetool repair & compact

2011-04-06 Thread Sylvain Lebresne
On Tue, Apr 5, 2011 at 9:03 PM, Maki Watanabe wrote: > Thanks Sylvain, it's very clear. > But should I still need to force major compaction regularly to clear > tombstones? > I know that minor compaction clear the tombstones after 0.7, but > maximumCompactionThreshold limits the maximum number of

Re: nodetool repair & compact

2011-04-05 Thread Maki Watanabe
Thanks Sylvain, it's very clear. But should I still need to force major compaction regularly to clear tombstones? I know that minor compaction clear the tombstones after 0.7, but maximumCompactionThreshold limits the maximum number of sstable which will be merged at once, so to GC all tombstones in

Re: nodetool repair & compact

2011-04-05 Thread Sylvain Lebresne
On Tue, Apr 5, 2011 at 12:01 AM, Maki Watanabe wrote: > Hello, > On reading O'Reilly's Cassandra book and wiki, I'm a bit confusing on > nodetool repair and compact. > I believe we need to run nodetool repair regularly, and it synchronize > all replica nodes at the end. > According to the document

nodetool repair & compact

2011-04-04 Thread Maki Watanabe
Hello, On reading O'Reilly's Cassandra book and wiki, I'm a bit confusing on nodetool repair and compact. I believe we need to run nodetool repair regularly, and it synchronize all replica nodes at the end. According to the documents the "repair" invokes major compaction also (as side effect?). Wil