Provided by: bucardo_5.4.1-2_all bug

NAME

       bucardo - utility script for controlling the Bucardo program

VERSION

       This document describes version 5.4.1 of bucardo

USAGE

         bucardo [<options>] <command> [<action>] [<command-options>] [<command-params>]

DESCRIPTION

       The bucardo script is the main interaction to a running Bucardo instance. It can be used
       to start and stop Bucardo, add new items, kick syncs, and even install and upgrade Bucardo
       itself. For more complete documentation, please view the wiki <http://bucardo.org/>.

COMMANDS

       Run "bucardo help <command>" for additional details

       "install"
           Installs the Bucardo configuration database.

       "upgrade"
           Upgrades the Bucardo configuration database to the latest schema.

       "start [<start options>] [<reason>]"
           Starts Bucardo.

       "stop [<reason>]"
           Stops Bucardo.

       "restart [<start options>] [<reason>]"
           Stops and starts Bucardo.

       "list <type> [<regex>]"
           Lists objects managed by Bucardo.

       "add <type> <name> <parameters>"
           Adds a new object.

       "update <type> <name> <parameters>"
           Updates an object.

       "remove <type> <name> [<name>...]"
           Removes one or more objects.

       "kick <syncname> [<sync options>] [<syncname>...] [<timeout>]"
           Kicks off one or more syncs.

       "reload config"
           Sends a message to all CTL and KID processes asking them to reload the Bucardo
           configuration.

       "reopen"
           Sends a message to all Bucardo processes asking them to reopen any log files they may
           have open. Call this after you have rotated the log file(s).

       "show all|<setting> [<setting>...]"
           Shows the current Bucardo settings.

       "<set <setting=value" [<setting=value>...] >>
           Sets one or more configuration setting..

       "ping [<timeout>]"
           Sends a ping notice to the MCP process to see if it will respond.

       "status [<status options>] <syncname> [<syncname>...]"
           Shows the brief status of syncs in a tabular format.

       "activate <syncname> [<syncname>...] [<timeout>]"
           Activates one or more named syncs.

       "deactivate <syncname> [<syncname>...] [<timeout>]"
           Deactivates one or more named syncs.

       "message <body>"
           Sends a message to the running Bucardo logs.

       "reload [<syncname> [<syncname>...]]"
           Sends a message to one or more sync processes, instructing them to reload.

       "inspect <type> <name> [<name>...]"
           Inspects one or more objects of a particular type.

       "validate all|<syncname> [<syncname>...]"
           Validates one or more syncs.

       "purge all|<table> [<table>...]"
           Purges the delta and track tables for one or more tables, for one or more databases.

       "delta [<database(s)>]"
           Show the delta counts for each source target.

       "help [<command> [<action>]]"
           Shows help.

OPTIONS

         -d --db-name       NAME  Database name.
         -U --db-user       USER  Database user name.
         -P --db-pass       PASS  Database password.
         -h --db-host       HOST  Database server host name.
         -p --db-port       PORT  Database server port number.
            --bucardorc     FILE  Use specified .bucardorc file.
            --no-bucardorc        Do not use .bucardorc file.
            --quiet               Incremental quiet.
            --verbose             Incremental verbose mode.
         -? --help                Output basic help and exit.
            --version             Print the version number and exit.
            --dryrun              Do not perform any actual actions.
            --confirm             Require direct confirmation before changes.

COMMAND DETAILS

       Most of the commands take parameters. These may be passed after the command name and,
       where appropriate, an object name. Parameters take the form of key/value pairs separated
       by an equal sign ("="). For example:

         bucardo add db sea_widgets dbname=widgets host=db.example.com

       Here "dbname" and <host> are parameters.

       Many of the commands also use command-line options, which are specified in the normal way.
       For example, the "bucardo add db" command could also be written as:

         bucardo add db sea_widgets --dbname widgets --dbhost db.example.com

       However, parameters and options are not directly interchangeable in all cases.  See the
       documentation for individual commands for their supported options.

   install
         bucardo install

       Installs the Bucardo schema from the file bucardo.schema into an existing Postgres
       cluster.  The user "bucardo" and database "bucardo" will be created first as needed. This
       is an interactive installer, but you can supply the following values from the command
       line:

       "--dbuser"
           defaults to postgres

       "--dbname"
           defaults to postgres

       "--dbport"
           defaults to 5432

       "--pid-dir"
           defaults to /var/run/bucardo/

   upgrade
         bucardo upgrade

       Upgrades an existing Bucardo installation to the current version of the bucardo database
       script. Requires that bucardo and the bucardo.schema file be the same version. All changes
       should be backwards compatible, but you may need to re-validate existing scripts to make
       sure changes get propagated to all databases.

   start
         bucardo start "Reason"

       Starts Bucardo. Fails if the MCP process is running (determined if its PID file is
       present).  Otherwise, starts cleanly by first issuing the equivalent of a stop to ask any
       existing Bucardo processes to exit, and then starting a new Bucardo MCP process. A short
       reason and name should be provided - these are written to the "reason_file" file
       (./bucardo.restart.reason.txt by default) and sent in the email sent when Bucardo has been
       started up. It is also appended to the reason log, which has the same name as the the
       "reason_file" but ends in .log.

       The options for the "start" command are:

       "--sendmail"
           Tells Bucardo whether or not to send mail on interesting events: startup, shutdown,
           and errors. Default is on.

       "--extra-name string"
           A short string that will be appended to the version string as output by the Bucardo
           process names. Mostly useful for debugging.

       "--log-destination destination"
           Determines the destination for logging output. The supported values are:

           "stderr"
           "stdout"
           "syslog"
           "none"
           A file system directory.

           May be specified more than once, which is useful for, e.g., logging both to a
           directory and to syslog. If "--log-destination" is not specified at all, the default
           is to log to files in /var/log/bucardo.

       "--log-separate"
           Forces creation of separate log files for each Bucardo process of the form
           "log.bucardo.X.Y", where X is the type of process (MCP, CTL, or KID), and Y is the
           process ID.

       "--log-extension string"
           Appends the given string to the end of the default log file name, log.bucardo. A dot
           is added before the name as well, so a log extension of "rootdb" would produce a log
           file named log.bucardo.rootdb.

       "--log-clean"
           Forces removal of all old log files before running.

       "--debug"
       "--no-debug"
           Enable or disable debugging output. Disabled by default.

       "--exit-on-nosync"
       "--no-exit-on-nosync"
           On startup, if Bucardo finds no active syncs, it normally will continue to run,
           requiring a restart once syncs are added. This is useful for startup scripts and
           whatnot.

           If, however, you want it to exit when there are no active syncs, pass the
           "--exit-on-nosync" option. You can also be explicit that it should not exit when there
           are no syncs by passing "--no-exit-on-nosync". This is the default value.

   stop
         bucardo stop "Reason"

       Forces Bucardo to quit by creating a stop file which all MCP, CTL, and KID processes
       should detect and cause them to exit. Note that active syncs will not exit right away, as
       they will not look for the stop file until they have finished their current run.
       Typically, you should scan the list of processes after running this program to make sure
       that all Bucardo processes have stopped. One should also provide a reason for issuing the
       stop - usually this is a short explanation and your name. This is written to the
       "reason_file" file (./bucardo.restart.reason.txt by default) and is also used by Bucardo
       when it exits and sends out mail about its death. It is also appended to the reason log,
       which has the same name as the the "reason_file" but ends in .log.

   restart
         bucardo restart "Reason"

       Stops bucardo, waits for the stop to complete, and then starts it again.  Supports the
       same options as <"start"/start>. Useful for start scripts. For getting just CTL and KID
       processes to recognize newly added, updated, or removed objects, use the "reload" command,
       instead.

   list
         bucardo list <type> <regex>

       Lists summary information about Bucardo objects. The supported types are:

       ·   "database"

       ·   "dbgroup"

       ·   "relgroup"

       ·   "sync"

       ·   "table"

       ·   "sequence"

       ·   "customcode"

       ·   "customname"

       ·   "customcols"

       ·   "all"

       The "all" option will list information about all object types.

       The optional "regex" option can be used to filter the list to only those matching a
       regular expression.

   add
         bucardo add <type> <name> <parameters>

       Adds a new object to Bucardo. The "type" specifies the type of object to add, while the
       "name" should be the name of the object. The supported types include:

       "db"
       "dbgroup"
       "table"
       "sequence"
       "all tables"
       "all sequences"
       "relgroup"
       "sync"
       "customname"
       "customcols"

       add db

         bucardo add db <name> dbname=actual_name port=xxx host=xxx user=xxx

       Adds one or more new databases. The "name" is the name by which the database will be known
       to Bucardo, and must be unique. This may vary from the actual database name, as multiple
       hosts might have databases with the same name. Multiple databases can be added by
       separating the names with commas. Options that differ between the databases should be
       separated by a matching commas. Example:

         bucardo add db alpha,beta dbname=sales host=aa,bb user=bucardo

       This command will attempt an immediate test connection to the added database(s).  The
       supported named parameters are:

       "dbname"
           The actual name of the database. Required unless using a service file.

       "type"
           The type of the database. Defaults to "postgres". Currently supported values are:

           ·   "postgres"

           ·   "drizzle"

           ·   "mongo"

           ·   "mysql"

           ·   "maria"

           ·   "oracle"

           ·   "redis"

           ·   "sqlite"

       "user"
           The username Bucardo should use when connecting to this database.

       "pass"
           The password Bucardo should use when connecting to this database. It is recommended
           that you use a .pgpass file rather than entering the password here.

       "host"
           The host Bucardo should use when connecting to this database. Defaults to the value of
           the $PGHOSTADDR or $PGHOST environment variables, if present.

       "port"
           The port Bucardo should use when connecting to this database. Defaults to the value of
           the $PGPORT environment variable, if present.

       "conn"
           Additional connection parameters, e.g. "sslmode=require".

       "service"
           The service name Bucardo should use when connecting to this database.

       "status"
           Initial status of this database. Defaults to "active" but can be set to "inactive".

       "dbgroup"
           Name of the database group this database should belong to.

       "addalltables"
           Automatically add all tables from this database.

       "addallsequences"
           Automatically add all sequences from this database.

       "server_side_prepares"
       "ssp"
           Set to 1 or 0 to enable or disable server-side prepares. Defaults to 1.

       "makedelta"
           Set to 1 or 0 to enable or disable makedelta. Defaults to 0.

       Additional parameters:

       "--force"
           Forces the database to be added without running a connection test.

       Note: As a convenience, if the "dbuser" value is its default value, "bucardo", in the
       event that Bucardo cannot connect to the database, it will try connecting as "postgres"
       and create a superuser named "bucardo". This is to make things easier for folks getting
       started with Bucardo, but will not work if it cannot connect as "postgres", or if it the
       connection failed due to an authentication failure.

       add dbgroup

         bucardo add dbgroup name db1:source db2:source db3:target ...

       Adds one or more databases to the named dbgroup. If the dbgroup doesn't exist, it will be
       created. The database parameters should specify their roles, either "source" or "target".

       add table

         bucardo add table [schema].table db=actual_db_name

       Adds a table object. The table information will be read from the specified database.
       Supported parameters:

       "db"
           The name of the database from which to read the table information. Should be a name
           known to Bucardo, thanks to a previous call to "add database". Required.

       "autokick"
           Boolean indicating whether or not the table should automatically send kick messages
           when it's modified. Overrides the "autokick" parameter of any syncs of which the table
           is a part.

       "rebuild_index"
           Boolean indicating whether or not to rebuild indexes after every sync. Off by default.
           Optional.

       "analyze_after_copy"
           Boolean indicating whether or not to analyze the table after every sync. Off by
           default. Optional.

       "vacuum_after_copy"
           Boolean indicating whether or not to vacuum the table after every sync. Off by
           default. Optional.

       "relgroup"
           Adds the table to the named relgroup. If the relgroup does not exist, it will be
           created. Optional.

       "makedelta"
           Turns makedelta magic on or off. Value is a list of databases which need makedelta for
           this table. Value can also be "on" to enable makedelta for all databases.  Defaults to
           "off".

       "strict_check"
           Boolean indicating whether or not to be strict when comparing the table between syncs.
           If the columns have different names or data types, the validation will fail. But
           perhaps the columns are allowed to have different names or data types. If so, disable
           "strict_check" and column differences will result in warnings rather than failing the
           validation. Defaults to true.

       add sequence

         bucardo add sequence [schema].sequence relgroup=xxx

       "db"
           The name of the database from which to read the sequence information. Should be a name
           known to Bucardo, thanks to a previous call to "add database".  Required.

       "relgroup"
           Adds the sequence to the named relgroup. If the relgroup does not exist, it will be
           created. Optional.

       add all tables

         bucardo add all tables [relgroup=xxx] [pkonly]

       Adds all the tables in all known databases or in a specified database.  Excludes tables in
       the "pg_catalog", "information_schema", and "bucardo" schemas. (Yes, this means that you
       cannot replicate the Bucardo configuration database using Bucardo. Sorry about that.)
       Supported options and parameters:

       "db"
       "--db"
           Name of the database from which to find all the tables to add. If not provided, tables
           will be added from all known databases.

       "schema"
       "--schema"
       "-n"
           Limit to the tables in the specified comma-delimited list of schemas. The options may
           be specified more than once.

       "exclude-schema"
       "--exclude-schema"
       "-N"
           Exclude tables in the specified comma-delimited list of schemas. The options may be
           specified more than once.

       "table"
       "--table"
       "-t"
           Limit to the specified tables. The options may be specified more than once.

       "exclude-table"
       "--exclude-table"
       "-T"
           Exclude the specified tables. The options may be specified more than once.

       "relgroup"
       "--relgroup"
           Name of the relgroup to which to add new tables.

       "pkonly"
           Exclude tables without primary keys.

       add all sequences

         bucardo add all sequences relgroup=xxx

       Adds all the sequences in all known databases or in a specified database.  Excludes
       sequences in the "pg_catalog", "information_schema", and "bucardo" schemas. (Yes, this
       means that you cannot replicate the Bucardo configuration database using Bucardo. Sorry
       about that.) Supported options and parameters:

       "db"
       "--db"
           Name of the database from which to find all the sequences to add. If not provided,
           sequences will be added from all known databases.

       "schema"
       "--schema"
       "-n"
           Limit to the sequences in the specified comma-delimited list of schemas. The options
           may be specified more than once.

       "exclude-schema"
       "--exclude-schema"
       "-N"
           Exclude sequences in the specified comma-delimited list of schemas. The options may be
           specified more than once.

       "relgroup"
       "--relgroup"
           Name of the relgroup to which to add new tables or sequences.

       add relgroup

         bucardo add relgroup name
         bucardo add relgroup name table, sequence, ...

       Adds a relgroup. After the name, pass in an optional list of tables and/or sequences and
       they will be added to the group.

       add sync

         bucardo add sync name relgroup=xxx dbs=xxx

       Adds a sync, which is a named replication event containing information about what to
       replicate from where to where. The supported parameters are:

       "dbs"
           The name of a dbgroup or comma-delimited list of databases. All of the specified
           databases will be synchronized. Required.

       "dbgroup"
           The name of a dbgroup. All of the databases within this group will be part of the
           sync. If the dbgroup does not exists and a separate list of databases is given, the
           group will be created and populated.

       "relgroup"
           The name of a relgroup to synchronize. All of the tables and/or sequences in the
           relgroup will be synchronized. Required unless "tables" is specified.

       "tables"
           List of tables to add to the sync. This implicitly creates a relgroup with the same
           name as the sync. Required unless "relgroup" is specified.

       "status"
           Indicates whether or not the sync is active. Must be either "active" or "inactive".
           Defaults to "active".

       "rebuild_index"
           Boolean indicating whether or not to rebuild indexes after every sync.  Defaults to
           off.

       "lifetime"
           Number of seconds a KID can live before being reaped. No limit by default.

       "maxkicks"
           Number of times a KID may be kicked before being reaped. No limit by default.

       "conflict_strategy"
           The conflict resolution strategy to use in the sync. Supported values:

           "bucardo_source"
               The rows on the "source" database always "win". In other words, in a conflict,
               Bucardo copies rows from source to target.

           "bucardo_target"
               The rows on the "target" database always win.

           "bucardo_skip"
               Any conflicting rows are simply not replicated. Not recommended for most cases.

           "bucardo_random"
               Each database has an equal chance of winning each time. This is the default.

           "bucardo_latest"
               The row that was most recently changed wins.

           "bucardo_abort"
               The sync is aborted on a conflict.

       "onetimecopy"
           Determines whether or not a sync should switch to a full copy mode for a single run.
           Supported values are:

           0: off
           1: always full copy
           2: only copy tables that are empty on the target
       "stayalive"
           Boolean indicating whether or not the sync processes (CTL) should be persistent.
           Defaults to false.

       "kidsalive"
           Boolean indicating whether or not the sync child processes (KID) should be persistent.
           Defaults to false.

       "autokick"
           Boolean indicating whether or not tables in the sync should automatically send kick
           messages when they're modified. May be overridden by the "autokick" parameter of
           individual tables.

       "checktime"
           An interval specifying the maximum time a sync should go before being kicked. Useful
           for busy systems where you don't want the overhead of notify triggers.

       "priority"
           An integer indicating the priority of the sync. Lower numbers are higher priority.
           Currently used only for display purposes.

       "analyze_after_copy"
           Boolean indicating whether or not to analyze tables after every sync. Off by default.
           Optional.

       "overdue"
           An interval specifying the amount of time after which the sync has not run that it
           should be considered overdue. "check_bucardo_sync" issues a warning when a sync has
           not been run in this amount of time.

       "expired"
           An interval specifying the amount of time after which the sync has not run that it
           should be considered expired. "check_bucardo_sync" issues a critical message when a
           sync has not been run in this amount of time.

       "track_rates"
           Boolean indicating whether or not to track synchronization rates.

       "rebuild_index"
           Boolean indicating whether or not to rebuild indexes after every sync. Off by default.
           Optional.

       "strict_check"
           Boolean indicating whether or not to be strict when comparing tables in the sync. If
           the columns have different names or data types, the validation will fail. But perhaps
           the columns are allowed to have different names or data types. If so, disable
           "strict_check" and column differences will result in warnings rather than failing the
           validation. Defaults to true.

       add customname

         bucardo add customname oldname newname [db=name] [sync=name]

       Creates a new Bucardo custom name mapping. This allows the tables involved in replication
       to have different names on different databases. The "oldname" must contain the schema as
       well as the table name (if the source database supports schemas). The optional parameters
       limit it to one or more databases, and/or to one or more syncs. Supported parameters:

       "sync"
           A sync to which to add the customname. May be specified multiple times.

       "database"
       "db"
           A database for which to add the customname. May be specified multiple times.

       add customcols

         bucardo add customcols tablename select_clause [sync=x db=x]

       Specify the list of columns to select from when syncing. Rather than the default "SELECT
       *" behavior, you can specify any columns you want, including the use of function call
       return values and things not in the source column list. The optional parameters limit it
       to one or more databases, and/or to one or more syncs. Some examples:

         bucardo add customcols public.foobar "select a, b, c"
         bucardo add customcols public.foobar "select a, upper(b) AS b, c" db=foo
         bucardo add customcols public.foobar "select a, b, c" db=foo sync=abc

       Supported parameters:

       "sync"
           A sync to which to add the customcols. May be specified multiple times.

       "database"
       "db"
           A database for which to add the customcols. May be specified multiple times.

       add customcode

         bucardo add customcode <name> <whenrun=value> <src_code=filename> [optional information]

       Adds a customcode, which is a Perl subroutine that can be run at certain points in the
       sync process. It might handle exceptions, handle conflicts, or just run at certain times
       with no expectation of functionality (e.g., before Bucardo drops triggers). Metadata about
       that point will be passed to the subroutine as a hash reference.

       Supported parameters:

       "name"
           The name of the custom code object.

       "about"
           A short description of the custom code.

       "whenrun"
       "when_run"
           A string indicating when the custom code should be run. Supported values include:

           "before_txn"
           "before_check_rows"
           "before_trigger_drop"
           "after_trigger_drop"
           "after_table_sync"
           "exception"
           "conflict"
           "before_trigger_enable"
           "after_trigger_enable"
           "after_txn"
           "before_sync"
           "after_sync"
       "getdbh"
           Boolean indicating whether or not Perl DBI database handles should be provided to the
           custom code subroutine. If true, database handles will be provided under the "dbh" key
           of the hash reference passed to the subroutine.  The value under this key will be a
           hash reference mapping database names to their respective handles.

       "sync"
           Name of the sync with which to associate the custom code.

       "relation"
           Name of the table or sequence with which to associate the custom code.

       "status"
           The current status of this customcode. Anything other than "active" means the code is
           not run.

       "priority"
           Number indicating the priority in which order to execute custom codes. Lower numbers
           are higher priority. Useful for subroutines that set "lastcode" in order to cancel the
           execution of subsequent custom codes for the same "when_run".

       "src_code"
           File from which to read the custom code Perl source.

       The body of the Perl subroutine should be implemented in the "src_code" file, and not
       inside a "sub" declaration. When called, it will be passed a single hash reference with
       the following keys:

       "syncname"
           The name of the currently-executing sync.

       "version"
           The version of Bucardo executing the sync.

       "sourcename"
           The name of the source database.

       "targetname"
           The name of the target database.

       "sendmail"
           A code reference that can be used to send email messages.

       "sourcedbh"
           A DBI database handle to the sync source database. Provided only to custom code
           executed by the controller.

       "rellist"
           An array reference of hash references, each representing a relation in the sync.
           Provided only to custom code executed by the controller. The keys in the hash are the
           same as the parameters supported by "add table" and "add sequence", as appropriate.

       "schemaname"
           The schema for the table that triggered the exception. Provided only to "exception"
           custom codes.

       "tablename"
           The name of the table that triggered the exception. Provided only to "exception"
           custom codes.

       "error_string"
           The string containing the actual error message. Provided only to "exception" custom
           codes.

       "deltabin"
           A hash reference with the name of each source database as a key and a list of all
           primary keys joined together with "\0". Provided only to "exception" custom codes.

       "attempts"
           The number of times the sync has been attempted. Provided only to "exception" custom
           codes.

       "conflicts"
           A hash reference of conflicting rows. The keys are the primary key values, and the
           values are hash references with the names of the databases containing the conflicting
           rows and true values. Provided only to "conflict" custom codes.

       The custom code subroutine may set any of these keys in the hash reference to change the
       behavior of the sync:

       "message"
           Message to send to the logs.

       "warning"
           A warning to emit after the subroutine has returned.

       "error"
           An error to be thrown after the subroutine has returned.

       "nextcode"
           Set to send execution to the next custom code of the same type. Mainly useful to
           exception custom codes, and supported only by custom codes executed by the controller.

       "lastcode"
           Set to true to have any subsequent custom codes of the same type to be skipped.

       "endsync"
           Cancels the sync altogether.

       An example:

         use strict;
         use warnings;
         use Data::Dumper;

         my $info = shift;

         # Let's open a file.
         my $file = '/tmp/bucardo_dump.txt';
         open my $fh, '>:encoding(UTF-8)', $file or do {
             $info->{warning} = "Cannot open $file: $!\n";
             return;
         };

         # Inspect $info for fun.
         print $fh Dumper $info;
         close $fh or $info->{warning} = "Error closing $file: $!\n";

         # Log a message and return.
         $info->{message} = 'IN UR DATABASEZ NORMALIZIN UR RELAYSHUNS';
         return;

   update
         bucardo update <type> <name> <parameters>

       Updates a Bucardo object. The "type" specifies the type of object to update, while the
       "name" should be the name of the object. The supported parameters for each type are the
       same as those for "add". The supported types are:

       "customcode"
       "db"
       "sync"
       "table"
       "sequence"

       update customcode

         bucardo update customcode <name> setting=value

       Updates an existing customcode. Items that can be changed are:

       "about"
           A short description of the custom code.

       "getdbh"
           Boolean indicating whether or not Perl DBI database handles should be provided to the
           custom code subroutine. If true, database handles will be provided under the "dbh" key
           of the hash reference passed to the subroutine.  The value under this key will be a
           hash reference mapping database names to their respective handles.

       "name"
           The name of the custom code object.

       "priority"
           Number indicating the priority in which order to execute custom codes. Lower numbers
           are higher priority. Useful for subroutines that set "lastcode" in order to cancel the
           execution of subsequent custom codes for the same "when_run".

       "status"
           The current status of this customcode. Anything other than "active" means the code is
           not run.

       "whenrun"
           A string indicating when the custom code should be run. Supported values include:

           "before_txn"
           "before_check_rows"
           "before_trigger_drop"
           "after_trigger_drop"
           "after_table_sync"
           "exception"
           "conflict"
           "before_trigger_enable"
           "after_trigger_enable"
           "after_txn"
           "before_sync"
           "after_sync"

       update db

         bucardo udpate db <name> port=xxx host=xxx user=xxx pass=xxx

       Updates a database. The "name" is the name by which the database is known to Bucardo. This
       may vary from the actual database name, as multiple hosts might have databases with the
       same name.

       The supported named parameters are:

       "dbname"
       "db"
           The actual name of the database.

       "type"
       "dbtype"
           The type of the database. Currently supported values are:

           ·   "postgres"

           ·   "drizzle"

           ·   "mongo"

           ·   "mysql"

           ·   "maria"

           ·   "oracle"

           ·   "redis"

           ·   "sqlite"

       "username"
       "dbuser"
       "user"
           The username Bucardo should use to connect to the database.

       "password"
       "dbpass"
       "pass"
           The password Bucardo should use when connecting to the database.

       "dbhost"
       "pghost"
       "host"
           The host name to which to connect.

       "dbport"
       "pgport"
       "port"
           The port to which to connect.

       "dbconn"
       "pgconn"
       "conn"
           Additional connection parameters, e.g., "sslmode=require". Optional.

       "status"
           Status of the database in Bucardo. Must be either "active" or "inactive".

       "dbgroup"
       "server_side_prepares"
       "ssp"
           Enable or disable server-side prepares. Pass 1 to enable them or 0 to disable them.

       "makedelta"
           Enable or disable makedelta for this database.

       "dbservice"
       "service"
           The service name to use for a Postgres database.

       "dbgroup"
           A comma-separated list of dbgroups to which to add the database. The database will be
           removed from any other dbgroups of which it was previously a member.

       update sync

         bucardo update sync syncname relgroup=xxx dbs=xxx

       Updates a sync, which is a named replication event containing information about what to
       replicate from where to where. The supported parameters are:

       "name"
           The name of the sync. Required.

       "dbs"
           The name of a dbgroup or comma-delimited list of databases.

       "relgroup"
           The name of a relgroup to synchronize.

       "status"
           Indicates whether or not the sync is active. Must be either "active" or "inactive".
           Note that this will not change the current run status of the sync, just mark whether
           it should be active or inactive on the next reload. Use the "activate sync" and
           <deactivate sync> commands to actually activate or deactivate a sync.

       "rebuild_index"
           Boolean indicating whether or not to rebuild indexes after every sync.

       "lifetime"
           Number of seconds a KID can live before being reaped.

       "maxkicks"
           Number of times a KID may be kicked before being reaped.

       "isolation_level"
           The transaction isolation level this sync should use.  Only choices are "serializable"
           and "repeatable read"

       "conflict_strategy"
           The conflict resolution strategy to use in the sync. Supported values:

           "bucardo_source"
               The rows on the "source" database always "win". In other words, in a conflict,
               Bucardo copies rows from source to target.

           "bucardo_target"
               The rows on the "target" database always win.

           "bucardo_skip"
               Any conflicting rows are simply not replicated. Not recommended for most cases.

           "bucardo_random"
               Each database has an equal chance of winning each time.

           "bucardo_latest"
               The row that was most recently changed wins.

           "bucardo_abort"
               The sync is aborted on a conflict.

       "onetimecopy"
           Determines whether or not a sync should switch to a full copy mode for a single run.
           Supported values are:

           0: off
           1: always full copy
           2: only copy tables that are empty on the target
       "stayalive"
           Boolean indicating whether or not the sync processes (CTL) should be persistent.

       "kidsalive"
           Boolean indicating whether or not the sync child processes (KID) should be persistent.

       "autokick"
           Boolean indicating whether or not tables in the sync should automatically send kick
           messages when they're modified. May be overridden by the "autokick" parameter of
           individual tables.

       "checktime"
           An interval specifying the maximum time a sync should go before being kicked. Useful
           for busy systems where you don't want the overhead of notify triggers.

       "priority"
           An integer indicating the priority of the sync. Lower numbers are higher priority.
           Currently used only for display purposes.

       "analyze_after_copy"
           Boolean indicating whether or not to analyze tables after every sync. Off by default.

       "overdue"
           An interval specifying the amount of time after which the sync has not run that it
           should be considered overdue. "check_bucardo_sync" issues a warning when a sync has
           not been run in this amount of time.

       "expired"
           An interval specifying the amount of time after which the sync has not run that it
           should be considered expired. "check_bucardo_sync" issues a critical message when a
           sync has not been run in this amount of time.

       "track_rates"
           Boolean indicating whether or not to track synchronization rates.

       "rebuild_index"
           Boolean indicating whether or not to rebuild indexes after every sync.

       "strict_check"
           Boolean indicating whether or not to be strict when comparing tables in the sync. If
           the columns have different names or data types, the validation will fail. But perhaps
           the columns are allowed to have different names or data types. If so, disable
           "strict_check" and column differences will result in warnings rather than failing the
           validation. Defaults to true.

       update table

         bucardo update table [schema].table db=actual_db_name

       Updates a table object. The table information will be read from the specified database.
       Supported parameters:

       "db"
           The name of the database from which to read the table information. Should be a name
           known to Bucardo.

       "schemaname"
           The name of the schema in which the table is found.

       "tablename"
           The actual name of the table.

       "autokick"
           Boolean indicating whether or not the table should automatically send kick messages
           when it's modified. Overrides the "autokick" parameter of any syncs of which the table
           is a part.

       "rebuild_index"
           Boolean indicating whether or not to rebuild indexes after every sync.

       "analyze_after_copy"
           Boolean indicating whether or not to analyze the table after every sync.

       "vacuum_after_copy"
           Boolean indicating whether or not to vacuum the table after every sync.

       "relgroup"
           Adds the table to the named relgroup. May be specified more than once.  The table will
           be removed from any other relgroups.

       "makedelta"
           Specifies which databases need makedelta enabled for this table.

       "strict_check"
           Boolean indicating whether or not to be strict when comparing the table between syncs.
           If the columns have different names or data types, the validation will fail. But
           perhaps the columns are allowed to have different names or data types. If so, disable
           "strict_check" and column differences will result in warnings rather than failing the
           validation. Defaults to true.

       update sequence

         bucardo update sequence [schema].sequence relgroup=xxx

       "db"
           The name of the database where the sequence lives.

       "schemaname"
           The name of the schema in which the sequence is found.

       "relgroup"
           Adds the sequence to the named relgroup. May be speci<fied more than once. The
           sequence will be removed from any other relgroups.

   remove
         bucardo remove <item_type> <item_name>

       Removes one or more objects from Bucardo. Valid item types are;

       ·   "db" or "database"

           Use the "--force" option to clear out related tables and groups instead of erroring
           out.

       ·   "dbgroup"

       ·   "relgroup"

       ·   "sync"

       ·   "table"

       ·   "sequence"

       ·   "customcols"

       ·   "customname"

       ·   "customcode"

   kick
         bucardo kick <syncname(s)> [timeout]

       Tells one or more named syncs to fire as soon as possible. Note that this simply sends a
       request that the sync fire: it may not start right away if the same sync is already
       running, or if the source or target database has exceeded the number of allowed Bucardo
       connections. If the final argument is a number, it is treated as a timeout. If this number
       is zero, the bucardo command will not return until the sync has finished. For any other
       number, the sync will wait at most that number of seconds.  If any sync has not finished
       before the timeout, an exit value of 1 will be returned. Errors will cause exit values of
       2 or 3. In all other cases, an exit value of 0 will be returned.

       If a timeout is given, the total completion time in seconds is also displayed. If the sync
       is going to multiple targets, the time that each target takes from the start of the kick
       is also shown as each target finishes. Options:

       "--retry"
           The number of times to retry a sync if it fails. Defaults to 0.

       "--retry-sleep"
           How long to sleep, in seconds, between each retry attempt.

       "--notimer"
           By default, kicks with a timeout argument give a running real-time summary of time
           elapsed by using the backspace character. This may not be wanted if running a kick,
           for example, via a cronjob, so turning --notimer on will simply print the entire
           message without backspaces.

   pause
         bucardo pause <syncname(s)>
         bucardo pause all
         bucardo resume <syncname(s)>
         bucardo resume all

       Tells one or more named syncs to temporarily pause, or to resume from a previous pause.
       This only applies to active syncs and only takes effect if Bucardo is currently running.
       The keyword 'all' can be used as well to pause or resume all known active syncs.

   reload config
         bucardo reload config
         bucardo reload config 30

       Sends a message to all CTL and KID processes asking them to reload the Bucardo
       configuration. This configuration is a series of key/value pairs that configure Bucardo's
       behavior, and not any of the objects managed by the "add", "remove", or "update" commands.

       By default, Bucardo will send the message and then exit. Pass an optional number and
       Bucardo will instead wait up to that length of time for all child processes to report
       completion.

   set
         bucardo set setting1=value [setting2=value]

       Sets one or more configuration setting table. Setting names are case-insensitive. The
       available settings are:

       "autosync_ddl"
           Which DDL changing conditions do we try to remedy automatically? Default: "newcol".

       "bucardo_version"
           Current version of Bucardo. Default: 5.4.1.

       "bucardo_vac"
           Do we want the automatic VAC daemon to run? Default: 1.

       "bucardo_initial_version"
           Bucardo version this schema was created with. Default: 5.4.1.

       "ctl_checkonkids_time"
           How often does the controller check on the kids health? Default: 10.

       "ctl_createkid_time"
           How long do we sleep to allow kids-on-demand to get on their feet? Default: 0.5.

       "ctl_sleep"
           How long does the controller loop sleep? Default: 0.2.

       "default_conflict_strategy"
           Default conflict strategy for all syncs. Default: "bucardo_latest".

       "default_email_from"
           Who the alert emails are sent as. Default: "nobody@example.com".

       "default_email_host"
           Which host to send email through. Default: "localhost".

       "default_email_to"
           Who to send alert emails to. Default: "nobody@example.com".

       "email_debug_file"
           File to save a copy of all outgoing emails to. Default: None.

       "endsync_sleep"
           How long do we sleep when custom code requests an endsync? Default: 1.0.

       "flatfile_dir"
           Directory to store the flatfile output inside of. Default: ".".

       "host_safety_check"
           Regex to make sure we don't accidentally run where we should not. Default: None.

       "isolation_level"
           The transaction isolation level all sync should use. Defaults to 'serializable'.  The
           only other valid option is 'repeatable read'

       "kid_deadlock_sleep"
           How long to sleep in seconds if we hit a deadlock error. Default: 0.5.  Set to -1 to
           prevent the kid from retrying.

       "kid_nodeltarows_sleep"
           How long do kids sleep if no delta rows are found? Default: 0.5.

       "kid_pingtime"
           How often do we ping check the KID? Default: 60.

       "kid_restart_sleep"
           How long to sleep in seconds when restarting a kid? Default: 1.

       "kid_serial_sleep"
           How long to sleep in seconds if we hit a serialization error. Default: 0.5.  Set to -1
           to prevent the kid from retrying.

       "kid_sleep"
           How long does a kid loop sleep? Default: 0.5.

       "log_conflict_file"
           Name of the conflict detail log file. Default: "bucardo_conflict.log".

       "log_level"
           How verbose to make the logging. Higher is more verbose. Default: "normal".

       "log_microsecond"
           Show microsecond output in the timestamps? Default: 0.

       "log_showlevel"
           Show log level in the log output? Default: 0.

       "log_showline"
           Show line number in the log output? Default: 0.

       "log_showpid"
           Show PID in the log output? Default: 1.

       "log_showtime"
           Show timestamp in the log output?  0=off  1=seconds since epoch  2=scalar gmtime
           3=scalar localtime. Default: 3.

       "mcp_dbproblem_sleep"
           How many seconds to sleep before trying to respawn. Default: 15.

       "mcp_loop_sleep"
           How long does the main MCP daemon sleep between loops? Default: 0.2.

       "mcp_pingtime"
           How often do we ping check the MCP? Default: 60.

       "mcp_vactime"
           How often in seconds do we check that a VAC is still running? Default: 60.

       "piddir"
           Directory holding Bucardo PID files. Default: "/var/run/bucardo".

       "reason_file"
           File to hold reasons for stopping and starting. Default: "bucardo.restart.reason.txt".

       "reload_config_timeout"
           Number of seconds the "reload_config" command should wait for the reload to complete.
           Default: 30.

       "semaphore_table"
           Table to let apps know a sync is ongoing. Default: "bucardo_status".

       "statement_chunk_size"
           How many primary keys to shove into a single statement. Default: 10000.

       "stats_script_url"
           Location of the stats script. Default: "http://www.bucardo.org/".

       "stopfile"
           Name of the semaphore file used to stop Bucardo processes. Default: "fullstopbucardo".

       "syslog_facility"
           Which syslog facility level to use. Default: "log_local1".

       "tcp_keepalives_count"
           How many probes to send. 0 indicates sticking with system defaults. Default: 0.

       "tcp_keepalives_idle"
           How long to wait between each keepalive probe. Default: 0.

       "tcp_keepalives_interval"
           How long to wait for a response to a keepalive probe. Default: 0.

       "vac_run"
           How often does the VAC process run? Default: 30.

       "vac_sleep"
           How long does VAC process sleep between runs? Default: 120.

       "warning_file"
           File containing all log lines starting with "Warning". Default: "bucardo.warning.log".

   show
         bucardo show all|<setting> [<setting>...]

       Shows the current Bucardo settings. Use the keyword "all" to see all the settings, or
       specify one or more search terms. See "set" for complete details on the configuration
       settings.

   config
         bucardo config show all|<setting> [<setting>...]
         bucardo config set <setting=value> [<setting=value>...]

       Deprecated interface for showing and setting configuration settings. Use the "show" and
       "set" commands, instead.

   ping
         bucardo ping
         bucardo ping 60
         bucardo ping 0

       Sends a ping notice to the MCP process to see if it will respond. By default, it will wait
       15 seconds. A numeric argument will change this timeout. Using a 0 as the timeout
       indicates waiting forever. If a response was returned, the program will exit with a value
       of 0. If it times out, the value will be 1.  Returns a Nagios like message starting with
       "OK" or "CRITICAL" for success or failure.

   status
         bucardo status [syncname(s)] [--sort=#] [--show-days] [--compress]

       Shows the brief status of all known syncs in a tabular format. If given one or more sync
       names, shows detailed information for each one. To see detailed information for all syncs,
       simply use "status all"

       When showing brief information, the columns are:

       1. Name
           The name of the sync

       2. State
           The state of the sync. Can be 'Good', 'Bad', 'Empty', 'No records found', 'Unknown',
           or the run state for a currently-running sync.

       3. Last good
           When the sync last successfully ran.

       4. Time
           How long it has been since the last sync success

       5. Last I/U
           The number of insert and deletes performed by the last successful sync. May also show
           the number of rows truncated (T) or conflicted (C), if applicable.

       6. Last bad
           When the sync last failed.

       7. Time
           How long it has been since the last sync failure

       The options for "status" are:

       "--show-days"
           Specifies whether or not do list the time interval with days, or simply show the
           hours. For example, "3d 12h 6m 3s" vs. "48h 6m 3s"

       "--compress"
           Specifies whether or not to compress the time interval by removing spaces.  Mostly
           used to limit the width of the 'status' display.

       "--sort=#"
           Requests sorting of the 'status' output by one of the nine columns. Use a negative
           number to reverse the sort order.

   activate
         bucardo activate syncname [syncname2 syncname3 ...] [timeout]

       Activates one or more named syncs. If given a timeout argument, it will wait until it has
       received confirmation from Bucardo that each sync has been successfully activated.

   deactivate
         bucardo deactivate syncname [syncname2 syncname3 ...] [timeout]

       Deactivates one or more named syncs. If given a timeout argument, it will wait until it
       has received confirmation from Bucardo that the sync has been successfully deactivated.

   message
         bucardo message 'I WAS HERE'

       Sends a message to the running Bucardo logs. This message will appear prefixed with
       "MESSAGE: ". If Bucardo is not running, the message will go to the logs the next time
       Bucardo runs and someone adds another message.

   reload
         bucardo reload [syncname2 syncname3 ...]

       Sends a message to one or more sync processes, instructing them to reload.  Waits for each
       to reload before going on to the next. Reloading consists of deactivating a sync,
       reloading its information from the database, and activating it again.

   inspect
         bucardo inspect <type> <name> [<name2>...]

       Inspects one or more objects of a particular type. The results are sent to "STDOUT". The
       supported types include:

       "table"
       "sync"
       "relgroup"

   validate
         bucardo validate all|<sync> [<sync>...]

       Validates one or more syncs. Use the keyword "all" to validate all syncs, or specify one
       or more syncs to validate.

       Note that this command executes a subset of all the validation done when a sync is started
       or activated.

   purge
         bucardo purge all|<table> [<table>...]

       Purges the delta and track tables for one or more tables, for one or more databases. Use
       the keyword "all" to validate all tables, or specify one or more tables to validate.

   delta
         bucardo delta [total] [<database>...]

       Show the current delta count for each source target. Provide a list of databases to limit
       it to just the given ones. Wildcards are allowed. Use the special name "totals" to show
       only the grand total.

   help
         bucardo help
         bucardo help <command>
         bucardo help <command> <action>

       Get help. General help can be returned, as well as help for a single command or a command
       and its action. Some examples:

         bucard help list
         bucard help add table

OPTIONS DETAILS

       It is usually easier to set most of these options at the top of the script, or make an
       alias for them, as they will not change very often if at all.

       "-d"
       "--db-name"
             bucardo --db-name widgets
             bucardo -d bricolage

           Name of the Bucardo database to which to connect.

       "-U"
       "--db-user"
             bucardo --db-user postgres
             bucardo -U Mom

           User name to use when connecting to the Bucardo database.

       "-P"
       "--db-pass"
             bucardo --db-pass s3cr1t
             bucardo -P lolz

           Password to use when connecting to the Bucardo database.

       "-h"
       "--db-host"
             bucardo --db-host db.example.com
             bucardo -h db2.example.net

           Host name to use when connecting to the Bucardo database.

       "-p"
       "--db-port"
             bucardo --db-port 7654

           Port number to connect to when connecting to the Bucardo database.

       "--bucardorc"
             bucardo --bucardorc myrcfile

           Use the specified file for configuration instead of the default ./.bucardorc.

       "--no-bucardorc"
           Do not use the ./.bucardorc configuration file.

       "--verbose"
           Makes bucardo run verbosely. Default is off.

       "--quiet"
           Tells bucardo to be as quiet as possible. Default is off.

       "--help"
           Shows a brief summary of usage for bucardo.

FILES

       In addition to command-line configurations, you can put any options inside of a file. The
       file .bucardorc in the current directory will be used if found. If not found, then the
       file ~/.bucardorc will be used. Finally, the file /etc/bucardorc will be used if
       available. The format of the file is option = value, one per line. Any line starting with
       a '#' will be skipped. Any values loaded from a bucardorc file will be overwritten by
       command-line options. All bucardorc files can be ignored by supplying a "--no-bucardorc"
       argument. A specific file can be forced with the "--bucardorc=file" option; if this option
       is set, bucardo will refuse to run unless that file can be read.

ENVIRONMENT VARIABLES

       The bucardo script uses $ENV{HOME} to look for a .bucardorc file.

BUGS

       Bug reports and feature requests are always welcome, please visit bucardo.org
       <http://bucardo.org>, file GitHub Issues <http://github.com/bucardo/bucardo/issues>, or
       post to our email list <https://mail.endcrypt.com/mailman/listinfo/bucardo-general>.

SEE ALSO

       Bucardo

COPYRIGHT

       Copyright 2006-2015 Greg Sabino Mullane <greg@endpoint.com>

       This program is free to use, subject to the limitations in the LICENSE file.