cbcluster

    1.5.1 • Public • Published
         |         |              |
    ,---.|---.,---.|    .   .,---.|--- ,---.,---.
    |    |   ||    |    |   |`---.|    |---'|
    `---'`---'`---'`---'`---'`---'`---'`---'`
    

    cbcluster is a small immersive command line utility for interacting with Couchbase Server clusters.

    Development is ongoing to mirror some of the examples shown in the REST API Reference documentation. The primary focus of this tool is compact commands for quick cluster interaction.

    Installation

    With NPM:

    npm install -g cbcluster
    

    From this repository:

    git clone https://github.com/brianshumate/cbcluster.git
    cd cbcluster
    npm install
    npm link
    

    Usage

    Start cbcluster:

    cbcluster
    

    Get help:

    cbcluster> help
    
      Commands:
    
        addn [options]   Add node to existing cluster
        bckt [options]   Create bucket
        ejct [options]   Eject node from cluster
        flvr [options]   Fail over node
        info [options]   Get Couchbase Server information
        init [options]   Initialize node
        name [options]   Specify node name
        rebl [options]   Rebalance cluster
        svcs [options]   Specify node services
        user [options]   Specify administrator username and password
        help [command]   Provides help for a given command
        exit [options]   Exits this instance of cbcluster
    

    You can also get help for individual commands with help <command>.

    A note about defaults

    For the sake of convenience, cbcluster includes some sensible defaults and the defaults (for e.g. bucket creation) which you will find in the Couchbase Server web console user interface:

    Default setting Value Notes
    Administrator username Administrator [string] can be overridden with -u
    Administrator password couchbase [string] can be overridden with -p
    Node data path /opt/couchbase/var/lib/couchbase/data [string] can be overridden with -d
    Node index path /opt/couchbase/var/lib/couchbase/index [string] can be overridden with -i
    Node port 8091 [int] can be overridden with -x 18091
    Bucket type membase [string] can be overridden with -t memcached note that membase is the name for a couchbase style bucket; the other option is memcached
    Per Node RAM Quota 128 [int] RAM quota per node for bucket (in megabytes)
    Cache metadata valueOnly [string] can be overridden with -e fullEviction
    Access control sasl [string] can be overridden with -a none
    Bucket port None Set a bucket auth port number with -d 11242
    Replicas 1 [int] can be overridden with (2,3) -r 3
    Index replicas 0 [0 or 1] can be overridden with -i
    Auto compaction 0 [0 or 1] can be overridden with -c
    Flush 0 [0 or 1] can be overridden with -f

    All the above defaults can of course be overridden by command options.

    Usage Examples

    This example follows the Creating a new cluster documentation and covers most of the current abilities available in cbcluster.

    Couchbase Server Version

    Determine the Couchbase Server version on a given cluster node:

    cbcluster> vers -h cb1.local
    SUCCESS: Couchbase Server node cb1.local version: 3.1.1-1807-rel-enterprise
    

    Initialize Node

    The first step in building a cluster is to initialize the node:

    cbcluster> init -h cb3.local
    SUCCESS: Initialized node: cb3.local
    

    Specify Node Name

    cbcluster> name -h cb3.local -n cb3.local
    SUCCESS: Named node: cb3.local
    

    Specify Node Services

    cbcluster> svcs -h cb3.local -s kv,n1ql
    SUCCESS: Specified services on node cb3.local: kv,n1ql
    

    Specify Administrator Username and Password

    user -h cb3.local -u Administrator -p tacotown
    SUCCESS: Set administrator on node cb3.local: Administrator
    

    Create Bucket

    cbcluster> bckt -h cb3.local -p tacotown -n tacos -m 128 -s secretsalsa
    SUCCESS: Created tacos bucket on node cb3.local
    

    Fail Node Over and Rebalance Out

    This example shows how to fail a node over, eject it from the cluster, and then perform a rebalance; this makes the failed over node no longer a cluster member.

    cbcluster> flvr -h cb1.local -t cb2.local
    SUCCESS: Node cb2.local failed over
    cbcluster> ejct -h cb1.local -t cb2.local
    SUCCESS: Node cb2.local ejected from cluster
    cbcluster> rebl -h cb1.local -k cb1.local,cb3.local
    SUCCESS: Cluster rebalancing
    

    Notes

    This project works with the following software:

    • Couchbase Server 3.x-4.x
    • Node.js 4.2.2

    References

    1. Creating a new cluster
    2. Adding nodes to clusters
    3. Buckets API
    4. Removing nodes from clusters
    5. Failing over nodes
    6. Rebalancing nodes

    Install

    npm i cbcluster

    DownloadsWeekly Downloads

    2

    Version

    1.5.1

    License

    BSD-2-Clause

    Last publish

    Collaborators

    • brianshumate