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From Apache Wiki <>
Subject [Cassandra Wiki] Update of "LiveSchemaUpdates" by chrisoei
Date Mon, 25 Oct 2010 07:14:59 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Cassandra Wiki" for change notification.

The "LiveSchemaUpdates" page has been changed by chrisoei.


  ps aux | grep cassandra # get pid of cassandra
  jconsole PID
- MBeans -> org.apache.cassandra.service -> StorageService -> Operations -> loadSchemaFromYAML
+ MBeans -> org.apache.cassandra.db -> StorageService -> Operations -> loadSchemaFromYAML
  === Concurrency ===
  It is entirely possible and expected that a node will receive migration pushes from multiple
nodes.  Because of this, all migrations are applied on a single-threaded stage and versions
are checked throughout to make sure that no migration is applied twice, and no migration is
applied out of sync.

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