[Mnet-devel] private Mnet howto

[Lenny G Arbage]

  Baka once again came to the rescue.  I wanted to
document what was wrong here for the record.

  #1: Of all the machines on which I could have chosen
to run the metatracker, I picked the only one that
didn't have a default route in its routing table. 
This caused ipaddresslib to (unsurprisingly) not be
able to determine its own IP address.  There was a
message in the Mnet log about defaulting to 127.0.0.1,
but I missed it.  To summarize: this was a problem
with my network setup, not with Mnet.

  #2: Throttling needs to be "opened up" for a LAN
setup.  Things work with the defaults, but they are
slow (this should probably be added to the private
mnet docs).

  #3: I'm running in non-routable IP space (172.18. ),
so /all/ Mnet instances need the "ALLOW_RFC1918_IP:
true" set in node.conf (I had assumed this from the
directions, but turned it off when things didn't work
-- it should probably be added explicitly to the
docs).

  #4: Having not run Mnet before, I didn't realize
immediately that the nodes not having a long list of
'connected' and 'known' nodes was an indicator of
failure.  This is a good check to suggest after a user
trys setting up a private Mnet.

  Once I got these things fixed, my private Mnet
cluster seemed to work like a champ.  I am now
beginning to take some performance measurements.

  Am I missing anything baka?  I'd be glad to patch
the doc with these items.

  -Lenny.


--- Lenny G Arbage <alengarbage at yahoo.com> wrote:

> 
>   Alright, still having some problems getting my
> private Mnet going.




		
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