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11 mfdbtool

The mfdbtool utility manages mailfromd databases.

11.1 Invoking mfdbtool

The following options request the operation to be performed on the database. Exactly one of them must be specified. Each of them implied the --stderr option (see --stderr).

--list

List the database. By default, ‘cache’ database is assumed. To list another database, use --format option (see --format).

See Basic Database Operations.

--delete

Delete given entries from the database (see deleting from databases). By default, ‘cache’ database is assumed. To specify another database, use --format option (see --format).

See Basic Database Operations.

--expire

Delete all expired entries from the database (see Database Maintenance). By default, ‘cache’ database is assumed. To specify another database, use --format option (see --format). Full database name can be given in the command line (see --file option below), if it differs from the one specified in the script file.

Use with the option --all (see --all) to expire all databases.

See Database Maintenance.

--compact

Compact database (see compaction). By default, ‘cache’ database is compacted. To specify another database, use --format option (see --format). Full database name can be given in the command line (see --file option below), if it differs from the one specified in the script file.

Use with the option --all (see --all) to compact all databases.

See compaction.

The following options modify the behavior of mfdbtool:

--all

When used with --compact or --expire option, applies the action to all available databases. See compact cronjob.

-d string
--debug=string

Sets debugging level. The string argument must be a valid mailfromd debug level specification, as described in debugging level specification.

-e interval
--expire-interval=interval

Set expiration intervals for all databases to the specified interval. See time interval specification, for a description of interval format. The option overrides the expire-interval configuration statement (see expire-interval-conf), which you are advised to use instead.

-f filename
--file=filename

Set the name of the database to operate upon (for --compact, --delete, --expire, and --list options). Useful if, for some reason, you need to operate on a database whose file name does not match the one mfdbtool is configured to use.

-H dbformat
--format=dbformat

Use database of the given format, instead of the default ‘cache’. See Basic Database Operations.

--ignore-failed-reads

Ignore records that cannot be retrieved while compacting the database. Without this option, mfdbtool will abort the compaction if any such error is encountered.

--predict=rate-limit

Used with --list enables printing of the estimated times of sending along with the ‘rate’ database dump. Implies --list --format=rate. See estimated time of sending.

--state-directory=dir

Sets program state directory. See Local state directory, for the description of this directory and its purposes. This option overrides the state-directory configuration statement, described in state-directory.

--time-format=format

Set format to be used for timestamps in listings, produced by --list. The format is any valid strftime format string, see Time and Date Formats, for a detailed description. The default format is ‘%c’ (see %c time format). To analyze mfdbtool --list output using text tools, such as awk or grep, the following format might be useful: ‘%s’ (see %s time format). Another format I find useful is ‘%Y-%m-%d_%H:%M:%S’.

11.2 Configuring mfdbtool

Configuration settings are read from the /etc/mailfromd.conf file (see Mailfromd Configuration). The following statements are understood:

StatementReference
databaseSee conf-database.
database-modeSee database-mode.
database-typeSee database-type.
debugSee conf-calloutd-log.
lock-retry-countSee lock-retry-count.
lock-retry-timeoutSee lock-retry-timeout.
state-directorySee state-directory.

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