barman - Online in the Cloud

PROGRAM:

NAME

barman - Backup and Recovery Manager for PostgreSQL

SYNOPSIS

barman [OPTIONS] COMMAND

DESCRIPTION

barman is an administration tool for disaster recovery of PostgreSQL servers written in
Python. barman can perform remote backups of multiple servers in business critical
environments and helps DBAs during the recovery phase.

OPTIONS

-v, --version
Show program version number and exit.

-q, --quiet
Do not output anything. Useful for cron scripts.

-h, --help
Show a help message and exit.

-c CONFIG, --config CONFIG
Use the specified configuration file.

COMMANDS

Important: every command has a help option

archive-wal SERVER_NAME
Archive the incoming WAL files for SERVER_NAME, moving them in the archive, while
applying compression if requested.

cron Perform maintenance tasks, such as enforcing retention policies or WAL files
management.

list-server
Show all the configured servers, and their descriptions.

show-server SERVER_NAME
Show information about SERVER_NAME, including: conninfo, backup_directory,
wals_directory and many more. Specify all as SERVER_NAME to show information about
all the configured servers.

status SERVER_NAME
Show information about the status of a server, including: number of available
backups, archive_command, archive_status and many more. For example:

Server quagmire:
Description: The Giggity database
Passive node: False
PostgreSQL version: 9.3.9
pgespresso extension: Not available
PostgreSQL Data directory: /srv/postgresql/9.3/data
PostgreSQL 'archive_command' setting: rsync -a %p barman@backup:/var/lib/barman/quagmire/incoming
Last archived WAL: 0000000100003103000000AD
Current WAL segment: 0000000100003103000000AE
Retention policies: enforced (mode: auto, retention: REDUNDANCY 2, WAL retention: MAIN)
No. of available backups: 2
First available backup: 20150908T003001
Last available backup: 20150909T003001
Minimum redundancy requirements: satisfied (2/1)

check SERVER_NAME
Show diagnostic information about SERVER_NAME, including: ssh connection check,
PostgreSQL version, configuration and backup directories. Specify all as
SERVER_NAME to show diagnostic information about all the configured servers.

--nagios
Nagios plugin compatible output

diagnose
Collect diagnostic information about the server where barman is installed and all
the configured servers, including: global configuration, SSH version, Python
version, rsync version, as well as current configuration and status of all servers.

backup SERVER_NAME
Perform a backup of SERVER_NAME using parameters specified in the configuration
file. Specify all as SERVER_NAME to perform a backup of all the configured
servers.

--immediate-checkpoint
forces the initial checkpoint to be done as quickly as possible. Overrides
value of the parameter immediate_checkpoint, if present in the configuration
file.

--no-immediate-checkpoint
forces to wait for the checkpoint. Overrides value of the parameter
immediate_checkpoint, if present in the configuration file.

--reuse-backup [INCREMENTAL_TYPE]
Overrides reuse_backup option behaviour. Possible values for
INCREMENTAL_TYPE are:

· off: do not reuse the last available backup;

· copy: reuse the last available backup for a server and create a copy of
the unchanged files (reduce backup time);

· link: reuse the last available backup for a server and create a hard link
of the unchanged files (reduce backup time and space);

link is the default target if --reuse-backup is used and INCREMENTAL_TYPE is
not explicited.

--retry-times
Number of retries of base backup copy, after an error. Used during both
backup and recovery operations. Overrides value of the parameter
basebackup_retry_times, if present in the configuration file.

--no-retry
Same as --retry-times 0

--retry-sleep
Number of seconds of wait after a failed copy, before retrying. Used during
both backup and recovery operations. Overrides value of the parameter
basebackup_retry_sleep, if present in the configuration file.

list-backup SERVER_NAME
Show available backups for SERVER_NAME. This command is useful to retrieve a
backup ID. For example:

servername 20111104T102647 - Fri Nov 4 10:26:48 2011 - Size: 17.0 MiB - WAL Size: 100 B

In this case, *20111104T102647* is the backup ID.

show-backup SERVER_NAME BACKUP_ID
Show detailed information about a particular backup, identified by the server name
and the backup ID. See the Backup ID shortcuts (#shortcuts) section below for
available shortcuts. For example:

Backup 20150828T130001:
Server Name : quagmire
Status : DONE
PostgreSQL Version : 90402
PGDATA directory : /srv/postgresql/9.4/main/data

Base backup information:
Disk usage : 12.4 TiB (12.4 TiB with WALs)
Incremental size : 4.9 TiB (-60.02%)
Timeline : 1
Begin WAL : 0000000100000CFD000000AD
End WAL : 0000000100000D0D00000008
WAL number : 3932
WAL compression ratio: 79.51%
Begin time : 2015-08-28 13:00:01.633925+00:00
End time : 2015-08-29 10:27:06.522846+00:00
Begin Offset : 1575048
End Offset : 13853016
Begin XLOG : CFD/AD180888
End XLOG : D0D/8D36158

WAL information:
No of files : 35039
Disk usage : 121.5 GiB
WAL rate : 275.50/hour
Compression ratio : 77.81%
Last available : 0000000100000D95000000E7

Catalog information:
Retention Policy : not enforced
Previous Backup : 20150821T130001
Next Backup : - (this is the latest base backup)

list-files [OPTIONS] SERVER_NAME BACKUP_ID
List all the files in a particular backup, identified by the server name and the
backup ID. See the Backup ID shortcuts (#shortcuts) section below for available
shortcuts.

--target TARGET_TYPE
Possible values for TARGET_TYPE are:

· data: lists just the data files;

· standalone: lists the base backup files, including required WAL files;

· wal: lists all the WAL files between the start of the base backup and the
end of the log / the start of the following base backup (depending on
whether the specified base backup is the most recent one available);

· full: same as data + wal.

The default value is standalone.

rebuild-xlogdb SERVER_NAME
Perform a rebuild of the WAL file metadata for SERVER_NAME (or every server, using
the all shortcut) guessing it from the disk content. The metadata of the WAL
archive is contained in the xlog.db file, and every Barman server has its own copy.

recover [OPTIONS] SERVER_NAME BACKUP_ID DESTINATION_DIRECTORY
Recover a backup in a given directory (local or remote, depending on the
--remote-ssh-command option settings). See the Backup ID shortcuts (#shortcuts)
section below for available shortcuts.

--target-tli TARGET_TLI
Recover the specified timeline.

--target-time TARGET_TIME
Recover to the specified time.

You can use any valid unambiguous representation (e.g: "YYYY-MM-DD
HH:MM:SS.mmm").

--target-xid TARGET_XID
Recover to the specified transaction ID.

--target-name TARGET_NAME
Recover to the named restore point previously created with the
pg_create_restore_point(name) (for PostgreSQL 9.1 and above users).

--exclusive
Set target xid to be non inclusive.

--tablespace NAME:LOCATION
Specify tablespace relocation rule.

--remote-ssh-command SSH_COMMAND
This options activates remote recovery, by specifying the secure shell
command to be launched on a remote host. This is the equivalent of the
"ssh_command" server option in the configuration file for remote recovery.
Example: 'ssh postgres@db2'.

--retry-times
Number of retries of data copy during base backup after an error. Overrides
value of the parameter basebackup_retry_times, if present in the
configuration file.

--no-retry
Same as --retry-times 0

--retry-sleep
Number of seconds of wait after a failed copy, before retrying. Overrides
value of the parameter basebackup_retry_sleep, if present in the
configuration file.

get-wal [OPTIONS] SERVER_NAME WAL_ID
Retrieve a WAL file from the xlog archive of a given server. By default, the
requested WAL file, if found, is returned as uncompressed content to STDOUT. The
following options allow users to change this behaviour:

-o OUTPUT_DIRECTORY
destination directory where the get-wal will deposit the requested WAL

-j output will be compressed using gzip

-x output will be compressed using bzip2

delete SERVER_NAME BACKUP_ID
Delete the specified backup. Backup ID shortcuts (#shortcuts) section below for
available shortcuts.

BACKUP ID SHORTCUTS

Rather than using the timestamp backup ID, you can use any of the following
shortcuts/aliases to identity a backup for a given server:

first Oldest available backup for that server, in chronological order.

last Latest available backup for that server, in chronological order.

latest same ast last.

oldest same ast first.

EXIT STATUS

0 Success

Not zero
Failure

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