Vagrant Riak Cluster

This is a Vagrant project powered by Chef to bring up a local Riak cluster. Each node can run either Ubuntu 12.04 or CentOS 6.5 64-bit with 1024MB of RAM by default. If you want to change the operating system or tune VM resources, you'll have to edit the Vagrantfile directly.

Configuration

Install Vagrant

Download and install Vagrant via the Vagrant installer.

Install Vagrant plugins

$ vagrant plugin install vagrant-berkshelf
$ vagrant plugin install vagrant-omnibus
$ vagrant plugin install vagrant-cachier

Running

Clone project repository

$ git clone https://github.com/hectcastro/vagrant-riak-cluster.git
$ cd vagrant-riak-cluster

Launch cluster

$ export RIAK_NODES=3
$ export RIAK_CACHE=1 # Makes use of vagrant-cachier plugin
$ vagrant up

Environmental variables

RIAK_NODES – The number of node you want to spin up (default: 3)
RIAK_OS – The operating system you want to use (CENTOS or UBUNTU, default: CENTOS)
RIAK_CACHE – Whether you want to allow Vagrant to use the vagrant-cachier plugin or not (default: false)

Testing

Hit the HTTP statistics endpoint:

$ curl -s http://33.33.33.10.xip.io:8098/stats | python -mjson.tool
{
    "basho_stats_version": "1.0.3",
    "bitcask_version": "1.6.5-0-ga99f2f0",
    "cluster_info_version": "1.2.4",
    "compiler_version": "4.8.1",
    "connected_nodes": [
        "riak@33.33.33.20.xip.io",
        "riak@33.33.33.30.xip.io"
    ],
    "converge_delay_last": 53105,
    "converge_delay_max": 0,
    "converge_delay_mean": 0,
    "converge_delay_min": 0,
    "coord_redirs_total": 0,
    "cpu_avg1": 0,
    "cpu_avg15": 0,
    "cpu_avg5": 0,
    "cpu_nprocs": 316,
    "crypto_version": "2.1",
    "dropped_vnode_requests_total": 0,
    "erlang_js_version": "1.2.2",
    "erlydtl_version": "0.7.0",
    "executing_mappers": 0,
    "goldrush_version": "0.1.5",
    "gossip_received": 5,
    "handoff_timeouts": 0,
    "ignored_gossip_total": 0,
    "index_fsm_active": 0,
    "index_fsm_create": 0,
    "index_fsm_create_error": 0,
    "inets_version": "5.9",
    "kernel_version": "2.15.1",
    "lager_version": "2.0.1",
    "leveldb_read_block_error": "undefined",
    "list_fsm_active": 0,
    "list_fsm_create": 0,
    "list_fsm_create_error": 0,
    "mem_allocated": 467865600,
    "mem_total": 1044668416,
    "memory_atom": 504409,
    "memory_atom_used": 480485,
    "memory_binary": 57896,
    "memory_code": 10707652,
    "memory_ets": 5401760,
    "memory_processes": 2517815,
    "memory_processes_used": 2516982,
    "memory_system": 49784361,
    "memory_total": 52302176,
    "merge_index_version": "1.3.2-0-gcb38ee7",
    "mochiweb_version": "1.5.1p6",
    "node_get_fsm_active": 0,
    "node_get_fsm_active_60s": 0,
    "node_get_fsm_in_rate": 0,
    "node_get_fsm_objsize_100": 0,
    "node_get_fsm_objsize_95": 0,
    "node_get_fsm_objsize_99": 0,
    "node_get_fsm_objsize_mean": 0,
    "node_get_fsm_objsize_median": 0,
    "node_get_fsm_out_rate": 0,
    "node_get_fsm_rejected": 0,
    "node_get_fsm_rejected_60s": 0,
    "node_get_fsm_rejected_total": 0,
    "node_get_fsm_siblings_100": 0,
    "node_get_fsm_siblings_95": 0,
    "node_get_fsm_siblings_99": 0,
    "node_get_fsm_siblings_mean": 0,
    "node_get_fsm_siblings_median": 0,
    "node_get_fsm_time_100": 0,
    "node_get_fsm_time_95": 0,
    "node_get_fsm_time_99": 0,
    "node_get_fsm_time_mean": 0,
    "node_get_fsm_time_median": 0,
    "node_gets": 0,
    "node_gets_total": 0,
    "node_put_fsm_active": 0,
    "node_put_fsm_active_60s": 0,
    "node_put_fsm_in_rate": 0,
    "node_put_fsm_out_rate": 0,
    "node_put_fsm_rejected": 0,
    "node_put_fsm_rejected_60s": 0,
    "node_put_fsm_rejected_total": 0,
    "node_put_fsm_time_100": 0,
    "node_put_fsm_time_95": 0,
    "node_put_fsm_time_99": 0,
    "node_put_fsm_time_mean": 0,
    "node_put_fsm_time_median": 0,
    "node_puts": 0,
    "node_puts_total": 0,
    "nodename": "riak@33.33.33.10.xip.io",
    "os_mon_version": "2.2.9",
    "pbc_active": 0,
    "pbc_connects": 0,
    "pbc_connects_total": 0,
    "pipeline_active": 0,
    "pipeline_create_count": 0,
    "pipeline_create_error_count": 0,
    "pipeline_create_error_one": 0,
    "pipeline_create_one": 0,
    "postcommit_fail": 0,
    "precommit_fail": 0,
    "public_key_version": "0.15",
    "read_repairs": 0,
    "read_repairs_total": 0,
    "rebalance_delay_last": 0,
    "rebalance_delay_max": 0,
    "rebalance_delay_mean": 0,
    "rebalance_delay_min": 0,
    "rejected_handoffs": 0,
    "riak_api_version": "1.4.4-0-g395e6fd",
    "riak_control_version": "1.4.4-0-g9a74e57",
    "riak_core_stat_ts": 1389717990,
    "riak_core_version": "1.4.4",
    "riak_kv_stat_ts": 1389717990,
    "riak_kv_version": "1.4.7-0-g5daeedd",
    "riak_kv_vnodeq_max": 0,
    "riak_kv_vnodeq_mean": 0,
    "riak_kv_vnodeq_median": 0,
    "riak_kv_vnodeq_min": 0,
    "riak_kv_vnodeq_total": 0,
    "riak_kv_vnodes_running": 4,
    "riak_pipe_stat_ts": 1389717989,
    "riak_pipe_version": "1.4.4-0-g7f390f3",
    "riak_pipe_vnodeq_max": 0,
    "riak_pipe_vnodeq_mean": 0,
    "riak_pipe_vnodeq_median": 0,
    "riak_pipe_vnodeq_min": 0,
    "riak_pipe_vnodeq_total": 0,
    "riak_pipe_vnodes_running": 4,
    "riak_search_version": "1.4.7-0-g2a44e2f",
    "riak_sysmon_version": "1.1.3",
    "ring_creation_size": 8,
    "ring_members": [
        "riak@33.33.33.10.xip.io",
        "riak@33.33.33.20.xip.io",
        "riak@33.33.33.30.xip.io"
    ],
    "ring_num_partitions": 8,
    "ring_ownership": "[{'riak@33.33.33.30.xip.io',2},\n {'riak@33.33.33.20.xip.io',2},\n {'riak@33.33.33.10.xip.io',4}]",
    "rings_reconciled": 0,
    "rings_reconciled_total": 12,
    "runtime_tools_version": "1.8.8",
    "sasl_version": "2.2.1",
    "sidejob_version": "0.2.0",
    "ssl_version": "5.0.1",
    "stdlib_version": "1.18.1",
    "storage_backend": "riak_kv_bitcask_backend",
    "syntax_tools_version": "1.6.8",
    "sys_driver_version": "2.0",
    "sys_global_heaps_size": 0,
    "sys_heap_type": "private",
    "sys_logical_processors": 2,
    "sys_otp_release": "R15B01",
    "sys_process_count": 353,
    "sys_smp_support": true,
    "sys_system_architecture": "x86_64-unknown-linux-gnu",
    "sys_system_version": "Erlang R15B01 (erts-5.9.1) [source] [64-bit] [smp:2:2] [async-threads:64] [kernel-poll:true]",
    "sys_thread_pool_size": 64,
    "sys_threads_enabled": true,
    "sys_wordsize": 8,
    "vnode_gets": 0,
    "vnode_gets_total": 0,
    "vnode_index_deletes": 0,
    "vnode_index_deletes_postings": 0,
    "vnode_index_deletes_postings_total": 0,
    "vnode_index_deletes_total": 0,
    "vnode_index_reads": 0,
    "vnode_index_reads_total": 0,
    "vnode_index_refreshes": 0,
    "vnode_index_refreshes_total": 0,
    "vnode_index_writes": 0,
    "vnode_index_writes_postings": 0,
    "vnode_index_writes_postings_total": 0,
    "vnode_index_writes_total": 0,
    "vnode_puts": 0,
    "vnode_puts_total": 0,
    "webmachine_version": "1.10.4-0-gfcff795"
}

Note: xip.io is a service that provides wildcard DNS for any (public or private) IP address.

How is this better than `make devrel`?

Standing up a local Riak cluster within Vagrant is better than make devrel because:

It installs Riak on the operating system you intend to deploy on in production
It uses the actual packages you'll deploy with in production
It allows you to test failure scenarios that include the machine (failed disks, network partitions, etc.)

How is this worse than `make devrel`?

Standing up a local Riak cluster within Vagrant is worse than make devrel because:

It takes longer (minutes) to stand up a cluster
It uses more resources on your local machine
It involves VirtualBox

basho-labs/vagrant-riak-cluster

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