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From Apache Wiki <wikidi...@apache.org>
Subject [Cassandra Wiki] Update of "Operations" by JonathanEllis
Date Tue, 08 Dec 2009 22:59:17 GMT
Dear Wiki user,

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

The "Operations" page has been changed by JonathanEllis.
http://wiki.apache.org/cassandra/Operations?action=diff&rev1=3&rev2=4

--------------------------------------------------

  
  Adding new nodes is called "bootstrapping."
  
- To bootstrap a node, turn AutoBootstrap on in the configuration file, and start it.
+ To bootstrap a node, turn !AutoBootstrap on in the configuration file, and start it.
  
- If you explicitly specify an InitialToken in the configuration, the new node will bootstrap
to that position on the ring.  Otherwise, it will pick a Token that will give it half the
keys from the node with the most disk space used, that does not already have another node
boostrapping into its Range.
+ If you explicitly specify an !InitialToken in the configuration, the new node will bootstrap
to that position on the ring.  Otherwise, it will pick a Token that will give it half the
keys from the node with the most disk space used, that does not already have another node
boostrapping into its Range.
  
  Important things to note:
   1. You should wait long enough for all the nodes in your cluster to become aware of the
bootstrapping node via gossip before starting another bootstrap.  For most clusters 30s will
be plenty of time.
@@ -90, +90 @@

  
  Cassandra exposes internal metrics as JMX data.  This is a common standard in the JVM world;
OpenNMS, Nagios, and Munin at least offer some level of JMX support.
  
- Chris to describe some important metrics to watch
+ Chris (or other volunteer :) to describe some important metrics to watch
  

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