Re: [bailey-developers] SF.net SVN: bailey: [9] trunk/src/java/org/apache/bailey

[Doug C. <cu...@ap...>]

ni...@us... wrote:
> Skeleton for the "distributed" system using threads per node. Does it look all right?

A great start!  Thanks!

A few thoughts:

Heartbeats should probably include the range/version currently 
searchable.  It should also report "load", perhaps its average response 
time.

When creating a new node, a host should ask the master what its id 
should be, and the master should allocate new nodes to areas of the ring 
that have a heavy load.

The master should also be able to give directives to hosts, indicating 
that a node should be dropped (since it is in a cool area of the ring). 
  Then the host should ask for a new id to replace this.  Hosts will be 
configured to run a particular number of nodes.

Should we have a HostToMaster protocol in addition to a NodeToMaster 
protocol, or should these be the same?

Ranges might be <long,long> rather than <String,String>?

I have to run out now, but will look at this more on Monday.

Thanks again for getting this part started!

Doug