You won't get even distribution. All it does is decommission and auto-bootstrap. http://wiki.apache.org/cassandra/Operations . However, you will get closer to even distribution if you double the size of your cluster, meaning if you had 3 nodes, you add 3 more nodes. In that case, each new node will assume 1/2 of an older node.
Right now the only way you could get blanced ring is by doing manual token moves. 1418 seams to be addressing this issue. I will also look forward into it. ----- Original Message ----- From: "Joe Alex" <[email protected]> To: [email protected] Sent: Tuesday, October 26, 2010 2:38:07 PM Subject: Re: After loadbalance why does the size increase I did not. I did try "cleanup" and here is after that. Was expecting an even distribution and total load to be approximately same as before also was reading this https://issues.apache.org/jira/browse/CASSANDRA-1418 Address Status Load Range Ring 127314552263552317194896535803056965704 10.210.32.75 Up 684.52 MB 3261306534628430564231103090162243723 |<--| 10.210.32.92 Up 727.91 MB 38958085454962719903262501903937071633 | | 10.210.32.93 Up 366.47 MB 81410091240220304547331026452103785021 | | 10.210.32.74 Up 415.47 MB 127314552263552317194896535803056965704 |-->| On Tue, Oct 26, 2010 at 5:28 PM, Arya Goudarzi <[email protected]> wrote: > Do you perform nodetool cleanup after you loadbalance? > > ________________________________ > From: "Joe Alex" <[email protected]> > To: [email protected] > Sent: Tuesday, October 26, 2010 2:06:58 PM > Subject: After loadbalance why does the size increase > > Hi, > > I have Cassandra 0.6.6 running on 4 nodes with RF=2. I have around 2 > million rows for a simple test. > Can somebody tell me why does the size keep increasing after running > "loadbalance" > > Address Status Load Range > Ring > > 127384081359183520765545698844531833520 > 10.210.32.75 Up 458.08 MB > 3261306534628430564231103090162243723 |<--| > 10.210.32.92 Up 407.88 MB > 38958085454962719903262501903937071633 | | > 10.210.32.93 Up 350.51 MB > 81410091240220304547331026452103785021 | | > 10.210.32.74 Up 498.58 MB > 127384081359183520765545698844531833520 |-->| > > > Address Status Load Range > Ring > > 127314552263552317194896535803056965704 > 10.210.32.75 Up 684.52 MB > 3261306534628430564231103090162243723 |<--| > 10.210.32.92 Up 624.67 MB > 38958085454962719903262501903937071633 | | > 10.210.32.93 Up 350.51 MB > 81410091240220304547331026452103785021 | | > 10.210.32.74 Up 924.65 MB > 127314552263552317194896535803056965704 |-->| >
