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Posted to commits@cassandra.apache.org by Apache Wiki <wi...@apache.org> on 2010/06/22 15:10:29 UTC
[Cassandra Wiki] Trivial Update of "Streaming" by JonathanEllis
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The "Streaming" page has been changed by JonathanEllis.
http://wiki.apache.org/cassandra/Streaming?action=diff&rev1=3&rev2=4
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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.