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Using the Command Line

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    Description — Start a Sync Gateway instance using command line options and securely sync enterprise data from cloud to edge
    Abstract — Introduces the options available when running Sync Gateway from the command line
    Related Content — Deploy | REST API Access | Configuration File

    Overview

    You can configure some Sync Gateway features by specifying command-line options when you start it.

    For more comprehensive configuration, use a JSON configuration file - see: Configuration File.

    Configuration

    Configuration determines the runtime behavior of Sync Gateway, including server configuration and the database or set of databases with which a Sync Gateway instance can interact.

    Command-line options can only specify a sub-set of the available configuration properties, and cannot be used to configure multiple databases.

    Two command-line options do not have corresponding configuration properties: -help and -verbose.

    Option Format

    When specifying command-line options use the format shown in Example 1

    • Command-line options are case-insensitive.

    • You can prefix command-line options with one hyphen (-) or with two hyphens (--).

    • For command-line options that take an argument, you specify the argument after an equal sign (=).
      For example, -bucket=db, or as a following item on the command line, for example, -bucket db.

    Example 1. Command line option format
    sync_gateway [command-line options]

    Available Options

    The following command-line options can be used when starting Sync Gateway see Table 1

    Deprecation Notice
    The -bucket command line option is deprecated at Release 2.7 and will be removed following release 2.8.
    Use the JSON configuration file option bucket — see this_db_bucket.
    Table 1. Available command-line options
    Option Default Description

    ‑adminInterface

    127.0.0.1:4985

    Port or TCP network address (IP address and the port) that the Admin REST API listens on.

    -bucket

    sync_gateway

    Deprecated Name of the Couchbase Server bucket.

    -dbname

    sync_gateway

    Name of the Couchbase Server database to serve through the Public REST API.

    -defaultLogFilePath

    none

    Path to log files, as a fallback default value when logFilePath is not specified. This option is generally used in service scripts.

    -help

    none

    Lists the available options and exits.

    -interface

    :4984

    Port or TCP network address (IP address and the port) that the Public REST API listens on.

    -log

    HTTP

    Comma-separated list of log keywords to enable. The log keyword HTTP is enabled by default, which means that HTTP requests and error responses are always logged. Omitting HTTP from your list does not disable HTTP logging. HTTP logging can be disabled through the Admin API.

    -logFilePath

    none

    Path to log files.

    -pool

    default

    Name of the Couchbase Server pool in which to find buckets.

    -pretty

    false

    Pretty-print JSON responses to improve readability. This is useful for debugging, but reduces performance.

    -url

    walrus:

    URL of the database server. (Deprecated) An HTTP URL implies Couchbase Server. A walrus: URL implies the built-in Walrus database. A combination of a Walrus URL and a file-style URI (for example, walrus:///tmp/walrus) implies the built-in Walrus database and persisting the database to a file.

    -verbose

    Non-verbose logging

    Logs more information about requests.

    Examples

    The following command does not include any parameters and just uses the default values. It connects to the bucket named sync_gateway in the pool named default of the built-in Walrus database. It is served from port 4984, with the Admin interface on port 4985.

    $ sync_gateway

    The following command creates an ephemeral, in-memory Walrus database, served as db, and specifies use of pretty-printed JSON responses. Because Walrus is the default database, the option -url could be omitted.

    $ sync_gateway -url=walrus: -bucket=db -pretty

    The following command starts Sync Gateway and specifies the address of a Couchbase Server instance (instead of using the default database server, which is Walrus):

    $ ./sync_gateway -url http://cbserver:8091

    The following command accomplishes the same things as the prior command, persists the Walrus database to a file named /tmp/walrus/db.walrus, and turns on additional logging for the log keys HTTP+ and CRUD.

    $ sync_gateway -url=walrus:///tmp/walrus -bucket=db -log=HTTP+,CRUD

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