This is the default app.config created by rebar for the 0.14 release of Riak.
```erlang
% * tab-width: 4;erlang-indent-level: 4;indent-tabs-mode: nil *
% ex: ts=4 sw=4 et
[
% Riak Core config
{riak_core, [
% Default location of ringstate
{ring_state_dir, “data/ring”},
%% http is a list of IP addresses and TCP ports that the Riak
%% HTTP interface will bind.
{http, [ {"127.0.0.1", 8098 } ]},
%% https is a list of IP addresses and TCP ports that the Riak
%% HTTPS interface will bind.
%{https, [{ “127.0.0.1”, 8098 }]},
%% default cert and key locations for https can be overridden
%% with the ssl config variable
%{ssl, [
% {certfile, “etc/cert.pem”},
% {keyfile, “etc/key.pem”}
% ]},
%% riak_handoff_port is the TCP port that Riak uses for
%% intra-cluster data handoff.
{handoff_port, 8099 }
]},
%% Riak KV config
{riak_kv, [
%% Storage_backend specifies the Erlang module defining the storage
%% mechanism that will be used on this node.
{storage_backend, riak_kv_bitcask_backend},
%% pb_ip is the IP address that the Riak Protocol Buffers interface
%% will bind to. If this is undefined, the interface will not run.
{pb_ip, “127.0.0.1” },
%% pb_port is the TCP port that the Riak Protocol Buffers interface
%% will bind to
{pb_port, 8087 },
%% raw_name is the first part of all URLS used by the Riak raw HTTP
%% interface. See riak_web.erl and raw_http_resource.erl for
%% details.
%{raw_name, "riak"},
%% mapred_name is URL used to submit map/reduce requests to Riak.
{mapred_name, "mapred"},
%% directory used to store a transient queue for pending
%% map tasks
{mapred_queue_dir, “data/mr_queue” },
%% Each of the following entries control how many Javascript
%% virtual machines are available for executing map, reduce,
%% pre- and post-commit hook functions.
{map_js_vm_count, 8 },
{reduce_js_vm_count, 6 },
{hook_js_vm_count, 2 },
%% Number of items the mapper will fetch in one request.
%% Larger values can impact read/write performance for
%% non-MapReduce requests.
{mapper_batch_size, 5},
%% js_max_vm_mem is the maximum amount of memory, in megabytes,
%% allocated to the Javascript VMs. If unset, the default is
%% 8MB.
{js_max_vm_mem, 8},
%% js_thread_stack is the maximum amount of thread stack, in megabyes,
%% allocate to the Javascript VMs. If unset, the default is 16MB.
%% NOTE: This is not the same as the C thread stack.
{js_thread_stack, 16},
%% Number of objects held in the MapReduce cache. These will be
%% ejected when the cache runs out of room or the bucket/key
%% pair for that entry changes
{map_cache_size, 10000},
%% js_source_dir should point to a directory containing Javascript
%% source files which will be loaded by Riak when it initializes
%% Javascript VMs.
%{js_source_dir, “/tmp/js_source”},
%% riak_stat enables the use of the “riak-admin status” command to
%% retrieve information the Riak node for performance and debugging needs
{riak_kv_stat, true}
]},
%% Bitcask Config
{bitcask, [
{data_root, “data/bitcask”}
]},
%% Luwak Config
{luwak, [
{enabled, false}
]},
% Riak_err Config
{riak_err, [
% Info/error/warning reports larger than this will be considered
% too big to be formatted safely with the user-supplied format
% string.
{term_max_size, 65536},
%% Limit the total size of formatted info/error/warning reports.
{fmt_max_bytes, 65536}
]},
%% SASL config
{sasl, [
{sasl_error_logger, {file, “log/sasl-error.log”}},
{errlog_type, error},
{error_logger_mf_dir, “log/sasl”}, % Log directory
{error_logger_mf_maxbytes, 10485760}, % 10 MB max file size
{error_logger_mf_maxfiles, 5} % 5 files max
]}
].
```