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Mapreduce-used functions in erlang modules has to be included in Riak in order to work.

Since I have a cluster, I have to restart all the nodes every time I made some changes to the source code in that function. I thought I could use: 

riak-admin erl-reload

I was wrong.

How can I do this quickly? Not every time waiting for all the nodes to stop and start again...it takes about 20 seconds for five nodes. It doesn't feel right.

Hao
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1 Answers1

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You could do that from a riak attach session using the network load nl/1 shell function:

$ sudo riak attach
Remote Shell: Use "Ctrl-C a" to quit. q() or init:stop() will terminate the riak node.
Erlang R15B01 (erts-5.9.1) [source] [64-bit] [smp:16:16] [async-threads:0] [kernel-poll:false]

Eshell V5.9.1  (abort with ^G)
1> nl(custom_mr).
abcast
Joe
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