Yes. Confirmed. There are options available in app.config to control how often this occurs and how many vnodes rehash at once: defaults are every 7 days and two vnodes per server at a time.
Matthew Von-Maszewski On Dec 27, 2013, at 13:50, Edgar Veiga <edgarmve...@gmail.com> wrote: > Hi! > > I've been trying to find what may be the cause of this. > > Every once in a week, all the nodes in my riak cluster start to do some kind > of operation that lasts at least for two days. > > You can watch a sample of my munin logs regarding the last week in here: > > https://cloudup.com/imWiBwaC6fm > Take a look at the days 19 and 20, and now it has started again on the 26... > > I'm suspecting that this may be caused by the aae hash trees being > regenerated, as you say in your documentation: > For added protection, Riak periodically (default: once a week) clears and > regenerates all hash trees from the on-disk K/V data. > Can you confirm me that this may be the root of the "problem" and if it's > normal for the action to last for two days? > > I'm using riak 1.4.2 on 6 machines, with centOS. The backend is levelDB. > > Best Regards, > Edgar Veiga > _______________________________________________ > riak-users mailing list > riak-users@lists.basho.com > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
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