[Cassandra Wiki] Update of "NodeProbe" by EricEvans

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The "NodeProbe" page has been changed by EricEvans.
http://wiki.apache.org/cassandra/NodeProbe?action=diff&rev1=4&rev2=5

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  More and more instrumentation is being added to Cassandra. What has traditionally only been available from the web interface can now be obtained by querying the JMX agent.
  
- The `nodeprobe` utility provides a simple command line interface to these exposed operations and attributes.
+ The `nodetool` utility provides a simple command line interface to these exposed operations and attributes.
  
  ''Note: This utility currently requires the same environment as cassandra itself, namely the same classpath (including log4j.properties), and a valid storage-conf property.''
  
- Running `bin/nodeprobe` with no arguments produces some simple usage output.
+ Running `bin/nodetool` with no arguments produces some simple usage output.
  
  {{{
- usage: java org.apache.cassandra.tools.NodeProbe -host <arg> <command>
+ usage: java org.apache.cassandra.tools.NodeCmd -host <arg> <command>
  
   -host <arg>   node hostname or ip address
   -port <arg>   remote jmx agent port number
@@ -22, +22 @@

  The ring command will present a lame ascii art rendition of the ring, ''as determined by the node being queried.''
  
  {{{
- bin/nodeprobe -host 10.176.0.146 ring
+ bin/nodetool -host 10.176.0.146 ring
  Token(75603446264197340449435394672681112420)   3 10.176.0.146   |<--|
  Token(137462771597874153173150284137310597304)  3 10.176.1.161   |   |
  Token(63538518574533451921556363897953848387)   3 10.176.1.162   |-->|
@@ -31, +31 @@

  Displays the list of all known nodes and their status according to this nodes failure detector.
  
  {{{
- bin/nodeprobe -host 10.176.0.146 cluster
+ bin/nodetool -host 10.176.0.146 cluster
  10.176.0.146:7001     up
  10.176.1.161:7001     up
  10.176.1.162:7001     down
@@ -40, +40 @@

  Outputs node information including the token, load info (on disk storage), generation number (times started), uptime in seconds, and heap memory usage.
  
  {{{
- bin/nodeprobe -host 10.176.0.146 info
+ bin/nodetool -host 10.176.0.146 info
  Token(137462771597874153173150284137310597304)
  Load Info        : 0 bytes.
  Generation No    : 1
@@ -51, +51 @@

  Triggers the immediate cleanup of keys no longer belonging to this node.
  
  {{{
- bin/nodeprobe -host 10.176.0.146 cleanup
+ bin/nodetool -host 10.176.0.146 cleanup
  }}}
  == Compact ==
  Initiates an immediate table compaction.
  
  {{{
- bin/nodeprobe -host 10.176.0.146 compact
+ bin/nodetool -host 10.176.0.146 compact
  }}}
  == Decommission ==
  Tells the node to move its data elsewhere; opposite of bootstrap. Since 0.5. See https://issues.apache.org/jira/browse/CASSANDRA-435