I have a query out to the developer that can better respond to your follow-up questions. It might be Monday before we get a reply due to the holidays.
Do you happen to know how much data is in the leveldb dataset and/or one vnode? Not sure it will change the response, but might be nice to have that info available. Matthew P.S. Unrelated to your question: Riak 1.4.4 is available for download. It has a couple of nice bug fixes for leveldb. On Dec 27, 2013, at 2:08 PM, Edgar Veiga <edgarmve...@gmail.com> wrote: > Ok, thanks for confirming! > > Is it normal, that this action affects the overall state of the cluster? On > the 26th It started the regeneration and the the response times of the > cluster raised to never seen values. It was a day of heavy traffic but > everything was going quite ok until it started the regeneration process.. > > Have you got any advices about changing those app.config values? My cluster > is running smoothly for the past 6 months and I don't want to start all over > again :) > > Best Regards > > > On 27 December 2013 18:56, Matthew Von-Maszewski <matth...@basho.com> wrote: > 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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