Nodes not leaving in Riak 0.14.2

Anthony Molinaro anthonym at alumni.caltech.edu
Wed Apr 4 16:08:39 EDT 2012


On Wed, Apr 04, 2012 at 07:46:42PM +0200, Samuel Elliott wrote:
> 1) Which version of riak are you running? I think there are more
> messages in the mailing list about people who have had nodes get stuck
> leaving (it's worth also searching for "handoff" as that's the part of
> the vnode lifecycle which is the important one in a node leaving
> manoeuvre).

Riak 0.14.2. and most of the email list mailings were about issues
with 1.0 or greater.

> 2) I think to play it safe, it's probably best to have the nodes leave
> one by one. I don't know exactly how riak keeps track of network
> partitions, but I could imagine it seeing 3 nodes dropping off as some
> kind of network partition rather than those 3 nodes wanting to leave.

Yeah, I kind of figured this, however, as it stands now, even if I fully
wait for one to leave I can only ever have one node leave.  Any subsequent
node seems to just ignore the leave command.

-Anthony

-- 
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Anthony Molinaro                           <anthonym at alumni.caltech.edu>




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