Hello, Please can you attach your app.config and vm.args files as well as a zipped up log directory from one of the nodes?
Best regards, Christian On 22 Jul 2013, at 12:40, ks <ksafo...@rutarget.ru> wrote: > Hi there, > > We're using Riak 1.3.1 cluster with 3 nodes (CentOS 64-bit, Intel® Xeon® > E3-1245 Quadcore, 16 GB DDR3 RAM ECC, 2 x 3 TB SATA 6 Gb/s HDD 7200 rpm > (Software-RAID 1)) connected to the same 10 Gb router. > > We hold lot of small key-value pairs in the database and do about 500 get > operations and about 500 put requests per second via Java client library > from different client machines. > > The problem is that 95% percentile (according to Riak statistics) often > jumps up to 50000 ms for a couple of minutes. This is something quite far > from we expected in terms of performance. > > We've tried setting the options in > http://docs.basho.com/riak/latest/cookbooks/Linux-Performance-Tuning/ > (except for noatime flag). But anyway, 50 seconds put timeout is something > outstanding and I hardly believe noatime is a remedy. > > Log files appeared to be somewhat unclear to track down the problem. > > Is there anything else we can try? > > Thanks a lot! > > > > -- > View this message in context: > http://riak-users.197444.n3.nabble.com/Performance-problem-put-operation-takes-seconds-tp4028478.html > Sent from the Riak Users mailing list archive at Nabble.com. > > _______________________________________________ > riak-users mailing list > riak-users@lists.basho.com > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com _______________________________________________ riak-users mailing list riak-users@lists.basho.com http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
