1.2.22. Configuration

The CouchDB Server Configuration API provide an interface to query and update the various configuration values within a running CouchDB instance.

1.2.22.1. Accessing the local node’s configuration

The literal string _local serves as an alias for the local node name, so for all configuration URLs, {node-name} may be replaced with _local, to interact with the local node’s configuration.

1.2.22.2. /_node/{node-name}/_config

GET /_node/{node-name}/_config

Returns the entire CouchDB server configuration as a JSON structure. The structure is organized by different configuration sections, with individual values.

Request

GET /_node/nonode@nohost/_config HTTP/1.1
Accept: application/json
Host: localhost:5984

Response:

HTTP/1.1 200 OK
Cache-Control: must-revalidate
Content-Length: 4148
Content-Type: application/json
Date: Sat, 10 Aug 2013 12:01:42 GMT
Server: CouchDB (Erlang/OTP)
{
    "attachments": {
        "compressible_types": "text/*, application/javascript, application/json,  application/xml",
        "compression_level": "8"
    },
    "couchdb": {
        "users_db_suffix": "_users",
        "database_dir": "/var/lib/couchdb",
        "max_attachment_chunk_size": "4294967296",
        "max_dbs_open": "100",
        "os_process_timeout": "5000",
        "uri_file": "/var/lib/couchdb/couch.uri",
        "util_driver_dir": "/usr/lib64/couchdb/erlang/lib/couch-1.5.0/priv/lib",
        "view_index_dir": "/var/lib/couchdb"
    },
    "chttpd": {
        "backlog": "512",
        "bind_address": "0.0.0.0",
        "port": "5984",
        "require_valid_user": "false",
        "socket_options": "[{sndbuf, 262144}, {nodelay, true}]",
        "server_options": "[{recbuf, undefined}]"
    },
    "httpd": {
        "allow_jsonp": "false",
        "authentication_handlers": "{couch_httpd_auth, cookie_authentication_handler}, {couch_httpd_auth, default_authentication_handler}",
        "bind_address": "192.168.0.2",
        "max_connections": "2048",
        "port": "5984",
        "secure_rewrites": "true"
    },
    "log": {
        "writer": "file",
        "file": "/var/log/couchdb/couch.log",
        "include_sasl": "true",
        "level": "info"
    },
    "query_server_config": {
        "reduce_limit": "true"
    },
    "replicator": {
        "max_http_pipeline_size": "10",
        "max_http_sessions": "10"
    },
    "stats": {
        "interval": "10"
    },
    "uuids": {
        "algorithm": "utc_random"
    }
}

1.2.22.3. /_node/{node-name}/_config/{section}

GET /_node/{node-name}/_config/{section}

Gets the configuration structure for a single section.

Request:

GET /_node/nonode@nohost/_config/httpd HTTP/1.1
Accept: application/json
Host: localhost:5984

Response:

HTTP/1.1 200 OK
Cache-Control: must-revalidate
Content-Length: 444
Content-Type: application/json
Date: Sat, 10 Aug 2013 12:10:40 GMT
Server: CouchDB (Erlang/OTP)
{
    "allow_jsonp": "false",
    "authentication_handlers": "{couch_httpd_auth, cookie_authentication_handler}, {couch_httpd_auth, default_authentication_handler}",
    "bind_address": "127.0.0.1",
    "default_handler": "{couch_httpd_db, handle_request}",
    "enable_cors": "false",
    "port": "5984",
    "secure_rewrites": "true"
}

1.2.22.4. /_node/{node-name}/_config/{section}/{key}

GET /_node/{node-name}/_config/{section}/{key}

Gets a single configuration value from within a specific configuration section.

Request:

GET /_node/nonode@nohost/_config/log/level HTTP/1.1
Accept: application/json
Host: localhost:5984

Response:

HTTP/1.1 200 OK
Cache-Control: must-revalidate
Content-Length: 8
Content-Type: application/json
Date: Sat, 10 Aug 2013 12:12:59 GMT
Server: CouchDB (Erlang/OTP)
"debug"

PUT /_node/{node-name}/_config/{section}/{key}

Updates a configuration value. The new value should be supplied in the request body in the corresponding JSON format. If you are setting a string value, you must supply a valid JSON string. In response CouchDB sends old value for target section key.

Request:

PUT /_node/nonode@nohost/_config/log/level HTTP/1.1
Accept: application/json
Content-Length: 7
Content-Type: application/json
Host: localhost:5984
"info"

Response:

HTTP/1.1 200 OK
Cache-Control: must-revalidate
Content-Length: 8
Content-Type: application/json
Date: Sat, 10 Aug 2013 12:12:59 GMT
Server: CouchDB (Erlang/OTP)
"debug"

DELETE /_node/{node-name}/_config/{section}/{key}

Deletes a configuration value. The returned JSON will be the value of the configuration parameter before it was deleted.

Request:

DELETE /_node/nonode@nohost/_config/log/level HTTP/1.1
Accept: application/json
Host: localhost:5984

Response:

HTTP/1.1 200 OK
Cache-Control: must-revalidate
Content-Length: 7
Content-Type: application/json
Date: Sat, 10 Aug 2013 12:29:03 GMT
Server: CouchDB (Erlang/OTP)
"info"

1.2.22.5. /_node/{node-name}/_config/_reload

New in version 3.0.

POST /_node/{node-name}/_config/_reload

Reloads the configuration from disk. This has a side effect of flushing any in-memory configuration changes that have not been committed to disk.

Request:

POST /_node/nonode@nohost/_config/_reload HTTP/1.1
Host: localhost:5984

Response:

HTTP/1.1 200 OK
Cache-Control: must-revalidate
Content-Length: 12
Content-Type: application/json
Date: Tues, 21 Jan 2020 11:09:35
Server: CouchDB/3.0.0 (Erlang OTP)
{"ok":true}