3.10. Logging

3.10.1. Logging options

[log]

CouchDB logging configuration.

  • writer

    Current writers include:

    • stderr: Logs are sent to stderr.

    • file: Logs are sent to the file set in log file.

    • syslog: Logs are sent to the syslog daemon.

    • journald: Logs are sent to stderr without timestamp and log levels compatible with sd-daemon.

    You can also specify a full module name here if implement your own writer:

    1. [log]
    2. writer = stderr

  • file

    Specifies the location of file for logging output. Only used by the file writer:

    1. [log]
    2. file = /var/log/couchdb/couch.log

    This path should be readable and writable for user that runs CouchDB service (couchdb by default).

  • write_buffer

    Specifies the size of the file log write buffer in bytes, to enable delayed log writes. Only used by the file writer:

    1. [log]
    2. write_buffer = 0

  • write_delay

    Specifies the wait in milliseconds before committing logs to disk, to enable delayed log writes. Only used by the file writer:

    1. [log]
    2. write_delay = 0

  • level

    Changed in version 1.3: Added warning level.

    Logging level defines how verbose and detailed logging will be:

    1. [log]
    2. level = info

    Available levels:

    • debug: Detailed debug logging.

    • info: Informative logging. Includes HTTP requests headlines, startup of an external processes etc.

    • notice

    • warning or warn: Warning messages are alerts about edge situations that may lead to errors. For instance, compaction daemon alerts about low or insufficient disk space at this level.

    • error or err: Error level includes only things that go wrong, like crash reports and HTTP error responses (5xx codes).

    • critical or crit

    • alert

    • emergency or emerg

    • none: Disables logging any messages.

  • include_sasl

    Includes SASL information in logs:

    1. [log]
    2. include_sasl = true

  • syslog_host

    Specifies the syslog host to send logs to. Only used by the syslog writer:

    1. [log]
    2. syslog_host = localhost

  • syslog_port

    Specifies the syslog port to connect to when sending logs. Only used by the syslog writer:

    1. [log]
    2. syslog_port = 514

  • syslog_appid

    Specifies application name to the syslog writer:

    1. [log]
    2. syslog_appid = couchdb

  • syslog_facility

    Specifies the syslog facility to use with the syslog writer:

    1. [log]
    2. syslog_facility = local2