[ https://issues.apache.org/jira/browse/CASSANDRA-14409?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ariel Weisberg updated CASSANDRA-14409: --------------------------------------- Component/s: Documentation and Website > Transient Replication: Support ring changes when transient replication is in > use (add/remove node, change RF, add/remove DC) > ---------------------------------------------------------------------------------------------------------------------------- > > Key: CASSANDRA-14409 > URL: https://issues.apache.org/jira/browse/CASSANDRA-14409 > Project: Cassandra > Issue Type: Sub-task > Components: Coordination, Core, Documentation and Website > Reporter: Ariel Weisberg > Assignee: Ariel Weisberg > Priority: Major > Fix For: 4.0 > > > The additional state transitions that transient replication introduces > require streaming and nodetool cleanup to behave differently. We already have > code that does the streaming, but in some cases we shouldn't stream any data > and in others when we stream to receive data we have to make sure we stream > from a full replica and not a transient replica. > Transitioning from not replicated to transiently replicated means that a node > must stay pending until the next incremental repair completes at which point > the data for that range is known to be available at full replicas. > Transitioning from transiently replicated to fully replicated requires > streaming from a full replica and is identical to how we stream from not > replicated to replicated. The transition must be managed so the transient > replica is not read from as a full replica until streaming completes. It can > be used immediately for a write quorum. > Transitioning from fully replicated to transiently replicated requires > cleanup to remove repaired data from the transiently replicated range to > reclaim space. It can be used immediately for a write quorum. > Transitioning from transiently replicated to not replicated requires cleanup > to be run to remove the formerly transiently replicated data. > nodetool move, removenode, cleanup, decommission, need to handle these > issues as does bootstrap. -- 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