Guillaume - Some colleagues had me carefully re-read those stats. You'll notice that those "put" stats are only for consistent or write_once operations, so they don't apply to you.
Your read stats show objects well within Riak's recommended object size: node_get_fsm_objsize_100 : 10916 node_get_fsm_objsize_95 : 7393 node_get_fsm_objsize_99 : 8845 node_get_fsm_objsize_mean : 4098 node_get_fsm_objsize_median : 3891 So that is not the issue. Are you using Bitcask? If so, please apply these sysctl settings: http://docs.basho.com/riak/kv/2.1.4/using/performance/#optional-i-o-settings If you are using the default "vm.dirty_*" settings Linux will appear to pause as it flushes disk buffers to the underlying device. The settings in the document change this so that flushes happen more often and asynchronously. -- Luke Bakken Engineer lbak...@basho.com On Mon, May 2, 2016 at 8:43 AM, Guillaume Boddaert <guilla...@lighthouse-analytics.co> wrote: > Here we go for a complete round of my hosts, all are objsize : 0 > > Here is a sample answer (headers only, that are followed by the full set of > JSON content) from the RIAK5 host > > HTTP/1.1 200 OK > X-Riak-Vclock: a85hYGBgzGDKBVI8xTxKnGbpn7QYuPafyWBKZMxjZXjyYfYFviwA > Vary: Accept-Encoding > Server: MochiWeb/1.1 WebMachine/1.10.8 (that head fake, tho) > Link: </buckets/twitter>; rel="up" > Last-Modified: Mon, 02 May 2016 15:40:20 GMT > ETag: "2l2QODpewyBZQFqDnyEy3F" > Date: Mon, 02 May 2016 15:40:20 GMT > Content-Type: application/json > Content-Length: 10722 > > Below the riak-admin status output. > > > admin@riak1:~$ sudo riak-admin status | grep -e 'objsize' | grep 'put' > consistent_put_objsize_100 : 0 > consistent_put_objsize_95 : 0 > consistent_put_objsize_99 : 0 > consistent_put_objsize_mean : 0 > consistent_put_objsize_median : 0 > write_once_put_objsize_100 : 0 > write_once_put_objsize_95 : 0 > write_once_put_objsize_99 : 0 > write_once_put_objsize_mean : 0 > write_once_put_objsize_median : 0 > > admin@riak2:~$ sudo riak-admin status | grep -e 'objsize' | grep 'put' > consistent_put_objsize_100 : 0 > consistent_put_objsize_95 : 0 > consistent_put_objsize_99 : 0 > consistent_put_objsize_mean : 0 > consistent_put_objsize_median : 0 > write_once_put_objsize_100 : 0 > write_once_put_objsize_95 : 0 > write_once_put_objsize_99 : 0 > write_once_put_objsize_mean : 0 > write_once_put_objsize_median : 0 > > admin@riak3:~$ sudo riak-admin status | grep -e 'objsize' | grep 'put' > consistent_put_objsize_100 : 0 > consistent_put_objsize_95 : 0 > consistent_put_objsize_99 : 0 > consistent_put_objsize_mean : 0 > consistent_put_objsize_median : 0 > write_once_put_objsize_100 : 0 > write_once_put_objsize_95 : 0 > write_once_put_objsize_99 : 0 > write_once_put_objsize_mean : 0 > write_once_put_objsize_median : 0 > > admin@riak4:~$ sudo riak-admin status | grep -e 'objsize' | grep 'put' > > consistent_put_objsize_100 : 0 > consistent_put_objsize_95 : 0 > consistent_put_objsize_99 : 0 > consistent_put_objsize_mean : 0 > consistent_put_objsize_median : 0 > write_once_put_objsize_100 : 0 > write_once_put_objsize_95 : 0 > write_once_put_objsize_99 : 0 > write_once_put_objsize_mean : 0 > write_once_put_objsize_median : 0 > > admin@riak5:~$ sudo riak-admin status | grep -e 'objsize' | grep 'put' > > consistent_put_objsize_100 : 0 > consistent_put_objsize_95 : 0 > consistent_put_objsize_99 : 0 > consistent_put_objsize_mean : 0 > consistent_put_objsize_median : 0 > write_once_put_objsize_100 : 0 > write_once_put_objsize_95 : 0 > write_once_put_objsize_99 : 0 > write_once_put_objsize_mean : 0 > write_once_put_objsize_median : 0 > > On 02/05/2016 17:32, Luke Bakken wrote: >> >> Could you please check the objsize stats on every Riak node? If they >> are all zero then ... ???? >> -- >> Luke Bakken >> Engineer >> lbak...@basho.com _______________________________________________ riak-users mailing list riak-users@lists.basho.com http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
