mirror of
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346 lines
15 KiB
Erlang
346 lines
15 KiB
Erlang
%% -*- mode: erlang;erlang-indent-level: 4;indent-tabs-mode: nil -*-
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%% ex: ft=erlang ts=4 sw=4 et
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[
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%% Riak Client APIs config
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{riak_api, [
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%% pb_backlog is the maximum length to which the queue of pending
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%% connections may grow. If set, it must be an integer >= 0.
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%% By default the value is 5. If you anticipate a huge number of
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%% connections being initialised *simultaneously*, set this number
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%% higher.
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%% {pb_backlog, 64},
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%% pb is a list of IP addresses and TCP ports that the Riak
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%% Protocol Buffers interface will bind.
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{pb, [ {"127.0.0.1", 10017 } ]}
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]},
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%% Riak Core config
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{riak_core, [
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%% Default location of ringstate
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{ring_state_dir, "./data/ring"},
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%% Default ring creation size. Make sure it is a power of 2,
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%% e.g. 16, 32, 64, 128, 256, 512 etc
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%{ring_creation_size, 64},
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%% http is a list of IP addresses and TCP ports that the Riak
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%% HTTP interface will bind.
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{http, [ {"127.0.0.1", 10018 } ]},
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%% https is a list of IP addresses and TCP ports that the Riak
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%% HTTPS interface will bind.
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%{https, [{ "127.0.0.1", 10018 }]},
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%% Default cert and key locations for https can be overridden
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%% with the ssl config variable, for example:
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%{ssl, [
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% {certfile, "./etc/cert.pem"},
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% {keyfile, "./etc/key.pem"}
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% ]},
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%% riak_handoff_port is the TCP port that Riak uses for
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%% intra-cluster data handoff.
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{handoff_port, 10019 },
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%% To encrypt riak_core intra-cluster data handoff traffic,
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%% uncomment the following line and edit its path to an
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%% appropriate certfile and keyfile. (This example uses a
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%% single file with both items concatenated together.)
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%{handoff_ssl_options, [{certfile, "/tmp/erlserver.pem"}]},
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%% DTrace support
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%% Do not enable 'dtrace_support' unless your Erlang/OTP
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%% runtime is compiled to support DTrace. DTrace is
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%% available in R15B01 (supported by the Erlang/OTP
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%% official source package) and in R14B04 via a custom
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%% source repository & branch.
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{dtrace_support, false},
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%% Health Checks
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%% If disabled, health checks registered by an application will
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%% be ignored. NOTE: this option cannot be changed at runtime.
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%% To re-enable, the setting must be changed and the node restarted.
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%% NOTE: As of Riak 1.3.2, health checks are deprecated as they
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%% may interfere with the new overload protection mechanisms.
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%% If there is a good reason to re-enable them, you must uncomment
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%% this line and also add an entry in the riak_kv section:
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%% {riak_kv, [ ..., {enable_health_checks, true}, ...]}
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%% {enable_health_checks, true},
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%% Platform-specific installation paths (substituted by rebar)
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{platform_bin_dir, "./bin"},
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{platform_data_dir, "./data"},
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{platform_etc_dir, "./etc"},
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{platform_lib_dir, "./lib"},
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{platform_log_dir, "./log"}
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]},
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%% Riak KV config
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{riak_kv, [
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%% Storage_backend specifies the Erlang module defining the storage
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%% mechanism that will be used on this node.
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{storage_backend, riak_kv_bitcask_backend},
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%% raw_name is the first part of all URLS used by the Riak raw HTTP
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%% interface. See riak_web.erl and raw_http_resource.erl for
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%% details.
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%{raw_name, "riak"},
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%% Enable active anti-entropy subsystem + optional debug messages:
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%% {anti_entropy, {on|off, []}},
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%% {anti_entropy, {on|off, [debug]}},
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{anti_entropy, {on, []}},
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%% Restrict how fast AAE can build hash trees. Building the tree
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%% for a given partition requires a full scan over that partition's
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%% data. Once built, trees stay built until they are expired.
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%% Config is of the form:
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%% {num-builds, per-timespan-in-milliseconds}
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%% Default is 1 build per hour.
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{anti_entropy_build_limit, {1, 3600000}},
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%% Determine how often hash trees are expired after being built.
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%% Periodically expiring a hash tree ensures the on-disk hash tree
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%% data stays consistent with the actual k/v backend data. It also
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%% helps Riak identify silent disk failures and bit rot. However,
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%% expiration is not needed for normal AAE operation and should be
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%% infrequent for performance reasons. The time is specified in
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%% milliseconds. The default is 1 week.
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{anti_entropy_expire, 604800000},
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%% Limit how many AAE exchanges/builds can happen concurrently.
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{anti_entropy_concurrency, 2},
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%% The tick determines how often the AAE manager looks for work
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%% to do (building/expiring trees, triggering exchanges, etc).
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%% The default is every 15 seconds. Lowering this value will
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%% speedup the rate that all replicas are synced across the cluster.
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%% Increasing the value is not recommended.
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{anti_entropy_tick, 15000},
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%% The directory where AAE hash trees are stored.
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{anti_entropy_data_dir, "./data/anti_entropy"},
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%% The LevelDB options used by AAE to generate the LevelDB-backed
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%% on-disk hashtrees.
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{anti_entropy_leveldb_opts, [{write_buffer_size, 4194304},
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{max_open_files, 20}]},
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%% mapred_name is URL used to submit map/reduce requests to Riak.
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{mapred_name, "mapred"},
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%% mapred_2i_pipe indicates whether secondary-index
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%% MapReduce inputs are queued in parallel via their own
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%% pipe ('true'), or serially via a helper process
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%% ('false' or undefined). Set to 'false' or leave
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%% undefined during a rolling upgrade from 1.0.
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{mapred_2i_pipe, true},
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%% Each of the following entries control how many Javascript
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%% virtual machines are available for executing map, reduce,
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%% pre- and post-commit hook functions.
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{map_js_vm_count, 8 },
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{reduce_js_vm_count, 6 },
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{hook_js_vm_count, 2 },
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%% js_max_vm_mem is the maximum amount of memory, in megabytes,
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%% allocated to the Javascript VMs. If unset, the default is
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%% 8MB.
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{js_max_vm_mem, 8},
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%% js_thread_stack is the maximum amount of thread stack, in megabyes,
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%% allocate to the Javascript VMs. If unset, the default is 16MB.
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%% NOTE: This is not the same as the C thread stack.
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{js_thread_stack, 16},
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%% js_source_dir should point to a directory containing Javascript
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%% source files which will be loaded by Riak when it initializes
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%% Javascript VMs.
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%{js_source_dir, "/tmp/js_source"},
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%% http_url_encoding determines how Riak treats URL encoded
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%% buckets, keys, and links over the REST API. When set to 'on'
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%% Riak always decodes encoded values sent as URLs and Headers.
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%% Otherwise, Riak defaults to compatibility mode where links
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%% are decoded, but buckets and keys are not. The compatibility
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%% mode will be removed in a future release.
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{http_url_encoding, on},
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%% Switch to vnode-based vclocks rather than client ids. This
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%% significantly reduces the number of vclock entries.
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%% Only set true if *all* nodes in the cluster are upgraded to 1.0
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{vnode_vclocks, true},
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%% This option toggles compatibility of keylisting with 1.0
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%% and earlier versions. Once a rolling upgrade to a version
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%% > 1.0 is completed for a cluster, this should be set to
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%% true for better control of memory usage during key listing
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%% operations
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{listkeys_backpressure, true},
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%% This option specifies how many of each type of fsm may exist
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%% concurrently. This is for overload protection and is a new
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%% mechanism that obsoletes 1.3's health checks. Note that this number
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%% represents two potential processes, so +P in vm.args should be at
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%% least 3X the fsm_limit.
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{fsm_limit, 50000},
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%% Uncomment to make non-paginated results be sorted the
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%% same way paginated results are: by term, then key.
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%% In Riak 1.4.* before 1.4.4, all results were sorted this way
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%% by default, which can adversely affect performance in some cases.
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%% Setting this to true emulates that behavior.
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%% {secondary_index_sort_default, true},
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%% object_format controls which binary representation of a riak_object
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%% is stored on disk.
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%% Current options are: v0, v1.
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%% v0: Original erlang:term_to_binary format. Higher space overhead.
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%% v1: New format for more compact storage of small values.
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{object_format, v1}
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]},
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%% Riak Search Config
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{riak_search, [
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%% To enable Search functionality set this 'true'.
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{enabled, false}
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]},
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%% Merge Index Config
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{merge_index, [
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%% The root dir to store search merge_index data
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{data_root, "./data/merge_index"},
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%% Size, in bytes, of the in-memory buffer. When this
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%% threshold has been reached the data is transformed
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%% into a segment file which resides on disk.
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{buffer_rollover_size, 1048576},
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%% Overtime the segment files need to be compacted.
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%% This is the maximum number of segments that will be
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%% compacted at once. A lower value will lead to
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%% quicker but more frequent compactions.
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{max_compact_segments, 20}
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]},
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%% Bitcask Config
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{bitcask, [
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%% Configure how Bitcask writes data to disk.
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%% erlang: Erlang's built-in file API
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%% nif: Direct calls to the POSIX C API
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%%
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%% The NIF mode provides higher throughput for certain
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%% workloads, but has the potential to negatively impact
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%% the Erlang VM, leading to higher worst-case latencies
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%% and possible throughput collapse.
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{io_mode, erlang},
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{data_root, "./data/bitcask"}
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]},
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%% eLevelDB Config
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{eleveldb, [
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{data_root, "./data/leveldb"}
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]},
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%% Lager Config
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{lager, [
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%% What handlers to install with what arguments
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%% The defaults for the logfiles are to rotate the files when
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%% they reach 10Mb or at midnight, whichever comes first, and keep
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%% the last 5 rotations. See the lager README for a description of
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%% the time rotation format:
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%% https://github.com/basho/lager/blob/master/README.org
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%%
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%% If you wish to disable rotation, you can either set the size to 0
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%% and the rotation time to "", or instead specify a 2-tuple that only
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%% consists of {Logfile, Level}.
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%%
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%% If you wish to have riak log messages to syslog, you can use a handler
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%% like this:
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%% {lager_syslog_backend, ["riak", daemon, info]},
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%%
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{handlers, [
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{lager_console_backend, info},
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{lager_file_backend, [
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{"./log/error.log", error, 10485760, "$D0", 5},
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{"./log/console.log", info, 10485760, "$D0", 5}
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]}
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] },
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%% Whether to write a crash log, and where.
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%% Commented/omitted/undefined means no crash logger.
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{crash_log, "./log/crash.log"},
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%% Maximum size in bytes of events in the crash log - defaults to 65536
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{crash_log_msg_size, 65536},
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%% Maximum size of the crash log in bytes, before its rotated, set
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%% to 0 to disable rotation - default is 0
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{crash_log_size, 10485760},
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%% What time to rotate the crash log - default is no time
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%% rotation. See the lager README for a description of this format:
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%% https://github.com/basho/lager/blob/master/README.org
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{crash_log_date, "$D0"},
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%% Number of rotated crash logs to keep, 0 means keep only the
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%% current one - default is 0
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{crash_log_count, 5},
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%% Whether to redirect error_logger messages into lager - defaults to true
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{error_logger_redirect, true},
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%% maximum number of error_logger messages to handle in a second
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%% lager 2.0.0 shipped with a limit of 50, which is a little low for riak's startup
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{error_logger_hwm, 100}
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]},
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%% riak_sysmon config
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{riak_sysmon, [
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%% To disable forwarding events of a particular type, use a
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%% limit of 0.
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{process_limit, 30},
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{port_limit, 2},
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%% Finding reasonable limits for a given workload is a matter
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%% of experimentation.
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%% NOTE: Enabling the 'gc_ms_limit' monitor (by setting non-zero)
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%% can cause performance problems on multi-CPU systems.
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{gc_ms_limit, 0},
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{heap_word_limit, 40111000},
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%% Configure the following items to 'false' to disable logging
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%% of that event type.
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{busy_port, true},
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{busy_dist_port, true}
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]},
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%% SASL config
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{sasl, [
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{sasl_error_logger, false}
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]},
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%% riak_control config
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{riak_control, [
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%% Set to false to disable the admin panel.
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{enabled, false},
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%% Authentication style used for access to the admin
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%% panel. Valid styles are 'userlist' <TODO>.
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{auth, userlist},
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%% If auth is set to 'userlist' then this is the
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%% list of usernames and passwords for access to the
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%% admin panel.
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{userlist, [{"user", "pass"}
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]},
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%% The admin panel is broken up into multiple
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%% components, each of which is enabled or disabled
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%% by one of these settings.
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{admin, true}
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]}
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].
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