[ https://issues.apache.org/jira/browse/CASSANDRA-11899?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
C. Scott Andreas updated CASSANDRA-11899: ----------------------------------------- Component/s: Streaming and Messaging Lifecycle > Please create a swarm decommission mode > --------------------------------------- > > Key: CASSANDRA-11899 > URL: https://issues.apache.org/jira/browse/CASSANDRA-11899 > Project: Cassandra > Issue Type: Improvement > Components: Lifecycle, Streaming and Messaging > Reporter: Mark Danko > Priority: Minor > > Right now when I remove a node that is up I understand 2 choices. > nodetool decommission: The current hosts starts sending out data as the only > source. This takes a long time. The one node you want to remove becomes a > huge bottle neck (even worse if you want to remove it because it is under > performing). > cassandra stop, then nodetool removenode: This lets all other nodes that > share the keyranges be sources. This runs about 8-16X faster than > decommission on my system, but this requires me to run with reduced > redundancy when it happens. > I think it would be really cool if there was a way to decommission a node > that is up, and leverage the power of other data sources. > Request : When you decommission a node all other nodes that share a keyrange > should also help in being sources for the data that needs to be copied. > Maybe, with options for how far to get the data/balance of load: old > behavior, same rack, same dc, other dc (or some default scheme based on > latency between nodes/racks/dcs). -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org