Hi Todd, Thanks for putting this together. After quickly reading through this email, it looks like we are going to want to incorporate a lot these suggestions/examples. I just opened a new issue on the wiki repo* to make sure this content gets incorporated in a timely manner. Pull requests are encouraged, btw. :)
Thanks for taking the time to put this together and keep the suggestions coming. Mark * https://github.com/basho/riak_wiki/issues/97 On Sun, May 8, 2011 at 2:38 PM, Todd <t.greenwoodg...@gmail.com> wrote: > --------------------------- > 1. Minor doc suggestion > --------------------------- > > http://wiki.basho.com/Configuration-Files.html > > """ > # riak_kv_fs_backend > Data is stored in binary files on the filesystem > > * riak_kv_fs_backendroot > Root directory where the files are stored (ex: /var/lib/riak/data) > """ > > "riak_kv_fs_backendroot" should be "riak_kv_fs_backend_root" > > > Note: these docs correctly point that out: > http://doc.erlagner.org/riak_kv/riak_kv_fs_backend.html > > ----------------------------------- > 2. Working example of multi backend > ----------------------------------- > > Following the previous thread on this, I was able to noodle out how to make > this work: > > a) edit the app.config > ++++++++++++++++++++++ > > user@erlang32:~/projects/riak/riak/rel/riak$ vim etc/app.config > > 42 %% Riak KV config > 43 {riak_kv, [ > 44 %% Storage_backend specifies the Erlang module defining the > storage > 45 %% mechanism that will be used on this node. > 46 {storage_backend, riak_kv_multi_backend}, > 47 {multi_backend_default, <<"cache">>}, > 48 {multi_backend, [ > 49 {<<"bitcask">>, riak_kv_bitcask_backend, [ > 50 {data_root, "/var/riak/data/bitcask"} > 51 ]}, > 52 {<<"filesystem">>, riak_kv_fs_backend, [ > 53 {riak_kv_fs_backend_root, "/var/riak/data/filesystem"} > 54 ]}, > 55 {<<"cache">>, riak_kv_cache_backend, [ > 56 {riak_kv_cache_backend_memory, 1024}, > 57 {riak_kv_cache_backend_ttl, 600}, > 58 {riak_kv_cache_backend_max_ttl, 3600} > 59 ]} > 60 ]}, > > > b) try to persist data into the filestore backend > +++++++++++++++++++++++++++++++++++++++++++++++++ > > user@erlang32:~/projects/riak/riak/rel/riak$ ./erts-5.8.3/bin/erl -name > 'riaktest@127.0.0.1' -setcookie riak > > Erlang R14B02 (erts-5.8.3) [source] [rq:1] [async-threads:0] > [kernel-poll:false] > > Eshell V5.8.3 (abort with ^G) > > (riaktest@127.0.0.1)1> RiakNode = 'riak@127.0.0.1'. > 'riak@127.0.0.1' > (riaktest@127.0.0.1)2> net_adm:ping(RiakNode). > pong > (riaktest@127.0.0.1)3> {ok, C} = riak:client_connect(RiakNode). > {ok,{riak_client,'riak@127.0.0.1',<<3,169,233,111>>}} > (riaktest@127.0.0.1)4> C:set_bucket(<<"Blobs">>, [{backend, > <<"filesystem">>}]). > ok > (riaktest@127.0.0.1)5> Blob=riak_object:new(<<"Blobs">>, <<"file1">>, > [<<"data blob 1">>]). > {r_object,<<"Blobs">>,<<"file1">>, > [{r_content,{dict,0,16,16,8,80,48, > > {[],[],[],[],[],[],[],[],[],[],[],[],[],[],...}, > {{[],[],[],[],[],[],[],[],[],[],[],[],...}}}, > [<<"data blob 1">>]}], > [], > {dict,1,16,16,8,80,48, > {[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],...}, > {{[],[],[],[],[],[],[],[],[],[],[],[],[],...}}}, > undefined} > (riaktest@127.0.0.1)6> C:put(Blob, 1). > ok > > c) retrieve the persisted data > ++++++++++++++++++++++++++++++ > > > (riaktest@127.0.0.1)7> {ok, Retrieved} = C:get(<<"Blobs">>, <<"file1">>, 1). > {ok,{r_object,<<"Blobs">>,<<"file1">>, > [{r_content,{dict,2,16,16,8,80,48, > {[],[],[],[],[],[],[],[],[],[],[],[],...}, > {{[],[],[],[],[],[],[],[],[],[],...}}}, > [<<"data blob 1">>]}], > [{<<3,169,233,111>>,{1,63472109206}}], > {dict,1,16,16,8,80,48, > {[],[],[],[],[],[],[],[],[],[],[],[],[],...}, > {{[],[],[],[],[],[],[],[],[],[],[],...}}}, > undefined}} > (riaktest@127.0.0.1)9> riak_object:get_value(Retrieved). > [<<"data blob 1">>] > > Hope that helps. > > -Todd > > _______________________________________________ > 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
