cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Apache Wiki <wikidi...@apache.org>
Subject [Cassandra Wiki] Trivial Update of "Streaming" by JonathanEllis
Date Tue, 22 Jun 2010 13:10:29 GMT
Dear Wiki user,

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

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

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

  
  Monitoring the status of streaming on both source and destination nodes can be found (in
0.6) under the `org.apache.cassandra.streaming.StreamingService` MBean.  The `Status` attribute
gives an easy indication of what a node is doing with respect to streaming.
  
- Step 2 is what takes the most time on most systems. The destination will be idle during
this stage; to monitor anti-compaction progress,  you should check the `Compaction` mbean
on the source.
+ Step 2 is what takes the most time on most systems. The destination will be idle during
this stage; to monitor anti-compaction progress,  you should check the `org.apache.cassandra.db.CompactionManager`
mbean on the source.
  
  Once step 3 begins actual data transfer, the sending node will report a status of `"Waiting
for transfer to $some_node to complete."`  The receiving node will report `"Receiving stream"`
while receiving stream data.  The `StreamDestinations` and `StreamSources` attributes each
contain a list of hosts that the current node is either sending stream data to or receiving
it from.
  

Mime
View raw message