setting-rebalance

    +

    Modifies rebalance retry settings

    SYNOPSIS

    _couchbase-cli setting-rebalance [--cluster <url>] [--username <user>] [--password <password>]
        [--client-cert <path>] [--client-cert-password <password>] [--client-key <path>]
        [--client-key-password <password>] [--set] [--get] [--cancel] [--pending-info] [--enable <1|0>]
        [--wait-for <sec>] [--moves-per-node <num>] [--max-attempts <num>]
        [--rebalance-id <id>]

    DESCRIPTION

    This command allows configuring and retrieving automatic rebalance retry settings as well as canceling and retrieving information of pending rebalance retries.

    OPTIONS

    -c
    --cluster

    Specifies the hostname of a node in the cluster. See the HOST FORMATS section for more information on specifying a hostname.

    -u
    --username <username>

    Specifies the username of the user executing the command. If you do not have a user account with permission to execute the command then it will fail with an unauthorized error.

    -p
    --password <password>

    Specifies the password of the user executing the command. If you do not have a user account with permission to execute the command then it will fail with an unauthorized error. If this argument is specified, but no password is given then the command will prompt the user for a password through non-echoed stdin. You may also specify your password by using the environment variable CB_REST_PASSWORD.

    --client-cert <path>

    The path to a client certificate used to authenticate when connecting to a cluster. May be supplied with --client-key as an alternative to the --username and --password flags. See the CERTIFICATE AUTHENTICATION section for more information.

    --client-cert-password <password>

    The password for the certificate provided to the --client-cert flag, when using this flag, the certificate/key pair is expected to be in the PKCS#12 format. See the CERTIFICATE AUTHENTICATION section for more information.

    --client-key <path>

    The path to the client private key whose public key is contained in the certificate provided to the --client-cert flag. May be supplied with --client-cert as an alternative to the --username and --password flags. See the CERTIFICATE AUTHENTICATION section for more information.

    --client-key-password <password>

    The password for the key provided to the --client-key flag, when using this flag, the key is expected to be in the PKCS#8 format. See the CERTIFICATE AUTHENTICATION section for more information.

    --set

    Specify to configure the automatic rebalance retry settings.

    --get

    Specify to retrieve the automatic rebalance retry settings.

    --cancel

    Specify to cancel a pending rebalance retry, use --rebalance-id together with this option to provide the rebalance id.

    --pending-info

    Specify to retrieve information of pending rebalance retries.

    --enable <1|0>

    Enable (1) or disable (0) automatic rebalance retry. This flag is required when using --set. By default automatic rebalance retry is disabled.

    --wait-for <sec>

    Specify the amount of time to wait after a failed rebalance before retrying. Time must be a value between 5 and 3600 seconds. By default the wait time is 300 seconds.

    --max-attempts <num>

    Specify the number of times a failed rebalance will be retried. The value provided must be between 1 and 3, the default is 1.

    --moves-per-node <num>

    Specify the number of concurrent vBucket to move per a node during a rebalance. The value provided must be between 1 and 64, the default is 4. A higher setting may improve rebalance performance, at the cost of higher resource consumption; in terms of CPU, memory, disk, and bandwidth. Conversely, a lower setting may degrade rebalance performance, while freeing up such resources. Note, however, that rebalance performance can be affected by many additional factors; and that in consequence, changing this parameter may not always have the expected effects. Note also that a higher setting, due to its additional consumption of resources, may degrade the performance of other systems, including the Data Service.

    --rebalance-id <id>

    Specify the rebalance id of a failed rebalance. Use together with --cancel, to cancel a pending retry.

    HOST FORMATS

    When specifying a host for the couchbase-cli command the following formats are expected:

    • couchbase://<addr>

    • <addr>:<port>

    • http://<addr>:<port>

    It is recommended to use the couchbase://<addr> format for standard installations. The other two formats allow an option to take a port number which is needed for non-default installations where the admin port has been set up on a port other that 8091.

    CERTIFICATE AUTHENTICATION (MTLS AUTHENTICATION)

    This tool supports authenticating against a Couchbase Cluster by using certificate based authentication (mTLS authentication). To use certificate based authentication a certificate/key must be supplied, there a currently multiple ways this may be done.

    PEM ENCODED CERTIFICATE/KEY

    An unencrypted PEM encoded certificate/key may be supplied by using: - --client-cert <path> - --client-key <path>

    The file passed to --client-cert must contain the client certificate, and an optional chain required to authenticate the client certificate.

    The file passed to --client-key must contain at most one private key, the key can be in one of the following formats: - PKCS#1 - PKCS#8

    Currently, only the following key types are supported: - RSA - DSA

    PEM ENCODED CERTIFICATE/PEM OR DER ENCRYPTED PKCS#8 KEY

    An encrypted PKCS#8 formatted key may be provided using: - --client-cert <path> - --client-key <path> - --client-key-password <password>

    The file passed to --client-cert must contain the client certificate, and an optional chain required to authenticate the client certificate.

    Currently, only the following key types are supported: - RSA - DSA

    ENCRYPTED PKCS#12 CERTIFICATE/KEY

    An encrypted PKCS#12 certificate/key may be provided using: - --client-cert <path> - --client-cert-password <password>

    The file passed to --client-cert must contain the client certificate and exactly one private key. It may also contain the chain required to authenticate the client certificate.

    Currently, only the following key types are supported: - RSA - DSA

    EXAMPLES

    To retrieve the current automatic rebalance retry configuration use:

    $ couchbase-cli setting-rebalance -c 127.0.0.1:8091 -u Administrator \
     -p password --get

    To enable automatic rebalance retry use the command bellow.

    $ couchbase-cli setting-rebalance -c 127.0.0.1:8091 -u Administrator \
     -p password --set --enabled 1

    You can also set the the wait for period and the maximum number of retries. The command above enables automatic rebalance retry as well as setting the wait time before retrying to 60 seconds and the maximum number of retires to 2.

    $ couchbase-cli setting-rebalance -c 127.0.0.1:8091 -u Administrator \
     -p password --set --enabled 1 --wait-for 60 --retries 2

    To retrieve information of the pending rebalance retries run the command bellow.

    $ couchbase-cli setting-rebalance -c 127.0.0.1:8091 -u Administrator \
     -p password --pending-info

    To cancel a pending rebalance retry run the command bellow where 4198f4b1564a800223271af76edd4f98 is the rebalance id, this can be retrieved using the --pending-info flag above.

    $ couchbase-cli setting-rebalance -c 127.0.0.1:8091 -u Administrator \
     -p password --pending-info --rebalance-id 4198f4b1564a800223271af76edd4f98

    ENVIRONMENT AND CONFIGURATION VARIABLES

    CB_REST_USERNAME

    Specifies the username to use when executing the command. This environment variable allows you to specify a default argument for the -u/--username argument on the command line.

    CB_REST_PASSWORD

    Specifies the password of the user executing the command. This environment variable allows you to specify a default argument for the -p/--password argument on the command line. It also allows the user to ensure that their password are not cached in their command line history.

    CB_CLIENT_CERT

    The path to a client certificate used to authenticate when connecting to a cluster. May be supplied with CB_CLIENT_KEY as an alternative to the CB_USERNAME and CB_PASSWORD variables. See the CERTIFICATE AUTHENTICATION section for more information.

    CB_CLIENT_CERT_PASSWORD

    The password for the certificate provided to the CB_CLIENT_CERT variable, when using this variable, the certificate/key pair is expected to be in the PKCS#12 format. See the CERTIFICATE AUTHENTICATION section for more information.

    CB_CLIENT_KEY

    The path to the client private key whose public key is contained in the certificate provided to the CB_CLIENT_CERT variable. May be supplied with CB_CLIENT_CERT as an alternative to the CB_USERNAME and CB_PASSWORD variables. See the CERTIFICATE AUTHENTICATION section for more information.

    CB_CLIENT_KEY_PASSWORD

    The password for the key provided to the CB_CLIENT_KEY variable, when using this variable, the key is expected to be in the PKCS#8 format. See the CERTIFICATE AUTHENTICATION section for more information.

    COUCHBASE-CLI

    Part of the couchbase-cli suite