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NEWS
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Barman News - History of user-visible changes
Copyright (C) 2011-2016 2ndQuadrant Italia Srl
Version 1.6.1 - 23 May 2016
- Add --peek option to get-wal command to discover existing WAL files
from the Barman's archive
- Add replication-status command for monitoring the status of any
streaming replication clients connected to the PostgreSQL server.
The --target option allows users to limit the request to only hot
standby servers or WAL streaming clients
- Add the switch-xlog command to request a switch of a WAL file to the
PostgreSQL server. Through the '--force' it issues a CHECKPOINT
beforehand
- Add streaming_archiver_name option, which sets a proper
application_name to pg_receivexlog when streaming_archiver is
enabled (only for PostgreSQL 9.3 and above)
- Check for _superuser_ privileges with PostgreSQL's standard
connections (#30)
- Check the WAL archive is never empty
- Check for 'backup_label' on the master when server is down
- Improve barman-wal-restore contrib script
- Bug fixes:
- Treat the "failed backups" check as non-fatal
- Rename '-x' option for get-wal as '-z'
- Add archive_mode=always support for PostgreSQL 9.5 (#32)
- Properly close PostgreSQL connections when necessary
- Fix receive-wal for pg_receive_xlog version 9.2
Version 1.6.0 - 29 Feb 2016
- Support for streaming replication connection through the
streaming_conninfo server option
- Support for the streaming_archiver option that allows Barman to
receive WAL files through PostgreSQL's native streaming protocol.
When set to 'on', it relies on pg_receivexlog to receive WAL data,
reducing Recovery Point Objective. Currently, WAL streaming is an
additional feature (standard log archiving is still required)
- Implement the receive-wal command that, when streaming_archiver is
on, wraps pg_receivexlog for WAL streaming. Add --stop option to
stop receiving WAL files via streaming protocol. Add --reset option
to reset the streaming status and restart from the current xlog
in Postgres.
- Automatic management (startup and stop) of receive-wal command via
cron command
- Support for the path_prefix configuration option
- Introduction of the archiver option (currently fixed to on) which
enables continuous WAL archiving for a specific server, through log
shipping via PostgreSQL's archive_command
- Support for streaming_wals_directory and errors_directory options
- Management of WAL duplicates in archive-wal command and integration
with check command
- Verify if pg_receivexlog is running in check command when
streaming_archiver is enabled
- Verify if failed backups are present in check command
- Accept compressed WAL files in incoming directory
- Add support for the pigz compressor (thanks to Stefano Zacchiroli
zack@upsilon.cc)
- Implement pygzip and pybzip2 compressors (based on an initial idea
of Christoph Moench-Tegeder christoph@2ndquadrant.de)
- Creation of an implicit restore point at the end of a backup
- Current size of the PostgreSQL data files in barman status
- Permit archive_mode=always for PostgreSQL 9.5 servers (thanks to
Christoph Moench-Tegeder christoph@2ndquadrant.de)
- Complete refactoring of the code responsible for connecting to
PostgreSQL
- Improve messaging of cron command regarding sub-processes
- Native support for Python >= 3.3
- Changes of behaviour:
- Stop trashing WAL files during archive-wal (commit:e3a1d16)
- Bug fixes:
- Atomic WAL file archiving (#9 and #12)
- Propagate "-c" option to any Barman subprocess (#19)
- Fix management of backup ID during backup deletion (#22)
- Improve archive-wal robustness and log messages (#24)
- Improve error handling in case of missing parameters
Version 1.5.1 - 16 Nov 2015
- Add support for the 'archive-wal' command which performs WAL
maintenance operations on a given server
- Add support for "per-server" concurrency of the 'cron' command
- Improved management of xlog.db errors
- Add support for mixed compression types in WAL files (SF.net#61)
- Bug fixes:
- Avoid retention policy checks during the recovery
- Avoid 'wal_level' check on PostgreSQL version < 9.0 (#3)
- Fix backup size calculation (#5)
Version 1.5.0 - 28 Sep 2015
- Add support for the get-wal command which allows users to fetch any
WAL file from the archive of a specific server
- Add support for retry hook scripts, a special kind of hook scripts
that Barman tries to run until they succeed
- Add active configuration option for a server to temporarily disable
the server by setting it to False
- Add barman_lock_directory global option to change the location of
lock files (by default: 'barman_home')
- Execute the full suite of checks before starting a backup, and skip
it in case one or more checks fail
- Forbid to delete a running backup
- Analyse include directives of a PostgreSQL server during backup and
recover operations
- Add check for conflicting paths in the configuration of Barman, both
intra (by temporarily disabling a server) and inter-server (by
refusing any command, to any server).
- Add check for wal_level
- Add barman-wal-restore script to be used as restore_command on a
standby server, in conjunction with barman get-wal
- Implement a standard and consistent policy for error management
- Improved cache management of backups
- Improved management of configuration in unit tests
- Tutorial and man page sources have been converted to Markdown format
- Add code documentation through Sphinx
- Complete refactor of the code responsible for managing the backup
and the recover commands
- Changed internal directory structure of a backup
- Introduce copy_method option (currently fixed to rsync)
- Bug fixes:
- Manage options without '=' in PostgreSQL configuration files
- Preserve Timeline history files (Fixes: #70)
- Workaround for rsync on SUSE Linux (Closes: #13 and #26)
- Disables dangerous settings in postgresql.auto.conf
(Closes: #68)
Version 1.4.1 - 05 May 2015
* Fix for WAL archival stop working if first backup is EMPTY
(Closes: #64)
* Fix exception during error handling in Barman recovery
(Closes: #65)
* After a backup, limit cron activity to WAL archiving only
(Closes: #62)
* Improved robustness and error reporting of the backup delete
command (Closes: #63)
* Fix computation of WAL production ratio as reported in the
show-backup command
* Improved management of xlogb file, which is now correctly fsynced
when updated. Also, the rebuild-xlogdb command now operates on a
temporary new file, which overwrites the main one when finished.
* Add unit tests for dateutil module compatibility
* Modified Barman version following PEP 440 rules and added support
of tests in Python 3.4
Version 1.4.0 - 26 Jan 2015
* Incremental base backup implementation through the reuse_backup
global/server option. Possible values are off (disabled,
default), copy (preventing unmodified files from being
transferred) and link (allowing for deduplication through hard
links).
* Store and show deduplication effects when using reuse_backup=
link.
* Added transparent support of pg_stat_archiver (PostgreSQL 9.4) in
check, show-server and status commands.
* Improved administration by invoking WAL maintenance at the end of
a successful backup.
* Changed the way unused WAL files are trashed, by differentiating
between concurrent and exclusive backup cases.
* Improved performance of WAL statistics calculation.
* Treat a missing pg_ident.conf as a WARNING rather than an error.
* Refactored output layer by removing remaining yield calls.
* Check that rsync is in the system path.
* Include history files in WAL management.
* Improved robustness through more unit tests.
* Fixed bug #55: Ignore fsync EINVAL errors on directories.
* Fixed bug #58: retention policies delete.
Version 1.3.3 - 21 Aug 2014
* Added "last_backup_max_age", a new global/server option that
allows administrators to set the max age of the last backup in a
catalogue, making it easier to detect any issues with periodical
backup execution
* Improved robustness of "barman backup" by introducing two global/
server options: "basebackup_retry_times" and
"basebackup_retry_sleep". These options allow an administrator to
specify, respectively, the number of attempts for a copy
operation after a failure, and the number of seconds of wait
before retrying
* Improved the recovery process via rsync on an existing directory
(incremental recovery), by splitting the previous rsync call into
several ones - invoking checksum control only when necessary
* Added support for PostgreSQL 8.3
* Minor changes:
+ Support for comma separated list values configuration options
+ Improved backup durability by calling fsync() on backup and
WAL files during "barman backup" and "barman cron"
+ Improved Nagios output for "barman check --nagios"
+ Display compression ratio for WALs in "barman show-backup"
+ Correctly handled keyboard interruption (CTRL-C) while
performing barman backup
+ Improved error messages of failures regarding the stop of a
backup
+ Wider coverage of unit tests
* Bug fixes:
+ Copies "recovery.conf" on the remote server during "barman
recover" (#45)
+ Correctly detect pre/post archive hook scripts (#41)
Version 1.3.2 - 15 Apr 2014
* Fixed incompatibility with PostgreSQL 8.4 (Closes #40, bug
introduced in version 1.3.1)
Version 1.3.1 - 14 Apr 2014
* Added support for concurrent backup of PostgreSQL 9.2 and 9.3
servers that use the "pgespresso" extension. This feature is
controlled by the "backup_options" configuration option (global/
server) and activated when set to "concurrent_backup". Concurrent
backup allows DBAs to perform full backup operations from a
streaming replicated standby.
* Added the "barman diagnose" command which prints important
information about the Barman system (extremely useful for support
and problem solving)
* Improved error messages and exception handling interface
* Fixed bug in recovery of tablespaces that are created inside the
PGDATA directory (bug introduced in version 1.3.0)
* Fixed minor bug of unhandled -q option, for quiet mode of
commands to be used in cron jobs (bug introduced in version
1.3.0)
* Minor bug fixes and code refactoring
Version 1.3.0 - 3 Feb 2014
* Refactored BackupInfo class for backup metadata to use the new
FieldListFile class (infofile module)
* Refactored output layer to use a dedicated module, in order to
facilitate integration with Nagios (NagiosOutputWriter class)
* Refactored subprocess handling in order to isolate stdin/stderr/
stdout channels (command_wrappers module)
* Refactored hook scripts management
* Extracted logging configuration and userid enforcement from the
configuration class.
* Support for hook scripts to be executed before and after a WAL
file is archived, through the 'pre_archive_script' and
'post_archive_script' configuration options.
* Implemented immediate checkpoint capability with
--immediate-checkpoint command option and 'immediate_checkpoint'
configuration option
* Implemented network compression for remote backup and recovery
through the 'network_compression' configuration option (#19)
* Implemented the 'rebuild-xlogdb' command (Closes #27 and #28)
* Added deduplication of tablespaces located inside the PGDATA
directory
* Refactored remote recovery code to work the same way local
recovery does, by performing remote directory preparation
(assuming the remote user has the right permissions on the remote
server)
* 'barman backup' now tries and create server directories before
attempting to execute a full backup (#14)
* Fixed bug #22: improved documentation for tablespaces relocation
* Fixed bug #31: 'barman cron' checks directory permissions for
lock file
* Fixed bug #32: xlog.db read access during cron activities
Version 1.2.3 - 5 September 2013
* Added support for PostgreSQL 9.3
* Added support for the "--target-name" recovery option, which allows to
restore to a named point previously specified with pg_create_restore_point
(only for PostgreSQL 9.1 and above users)
* Fixed bug #27 about flock() usage with barman.lockfile (many thanks to
Damon Snyder <damonsnyder at users.sf.net>)
* Introduced Python 3 compatibility
Version 1.2.2 - 24 June 2013
* Fix python 2.6 compatibility
Version 1.2.1 - 17 June 2013
* Added the "bandwidth_limit" global/server option which allows
to limit the I/O bandwidth (in KBPS) for backup and recovery operations
* Added the "tablespace_bandwidth_limit" global/server option which allows
to limit the I/O bandwidth (in KBPS) for backup and recovery operations
on a per tablespace basis
* Added /etc/barman/barman.conf as default location
* Bug fix: avoid triggering the minimum_redundancy check
on FAILED backups (thanks to Jérôme Vanandruel)
Version 1.2.0 - 31 Jan 2013
* Added the "retention_policy_mode" global/server option which defines
the method for enforcing retention policies (currently only "auto")
* Added the "minimum_redundancy" global/server option which defines
the minimum number of backups to be kept for a server
* Added the "retention_policy" global/server option which defines
retention policies management based on redunancy (e.g. REDUNDANCY 4)
or recovery window (e.g. RECOVERY WINDOW OF 3 MONTHS)
* Added retention policy support to the logging infrastructure, the
"check" and the "status" commands
* The "check" command now integrates minimum redundancy control
* Added retention policy states (valid, obsolete and potentially obsolete)
to "show-backup" and "list-backup" commands
* The 'all' keyword is now forbidden as server name
* Added basic support for Nagios plugin output to the 'check'
command through the --nagios option
* Barman now requires argh => 0.21.2 and argcomplete-
* Minor bug fixes
Version 1.1.2 - 29 Nov 2012
* Added "configuration_files_directory" option that allows
to include multiple server configuration files from a directory
* Support for special backup IDs: latest, last, oldest, first
* Management of multiple servers to the 'list-backup' command.
'barman list-backup all' now list backups for all the configured servers.
* Added "application_name" management for PostgreSQL >= 9.0
* Fixed bug #18: ignore missing WAL files if not found during delete
Version 1.1.1 - 16 Oct 2012
* Fix regressions in recover command.
Version 1.1.0 - 12 Oct 2012
* Support for hook scripts to be executed before and after
a 'backup' command through the 'pre_backup_script' and 'post_backup_script'
configuration options.
* Management of multiple servers to the 'backup' command.
'barman backup all' now iteratively backs up all the configured servers.
* Fixed bug #9: "9.2 issue with pg_tablespace_location()"
* Add warning in recovery when file location options have been defined
in the postgresql.conf file (issue #10)
* Fail fast on recover command if the destination directory contains
the ':' character (Closes: #4) or if an invalid tablespace
relocation rule is passed
* Report an informative message when pg_start_backup() invocation
fails because an exclusive backup is already running (Closes: #8)
Version 1.0.0 - 6 July 2012
* Backup of multiple PostgreSQL servers, with different versions. Versions
from PostgreSQL 8.4+ are supported.
* Support for secure remote backup (through SSH)
* Management of a catalog of backups for every server, allowing users
to easily create new backups, delete old ones or restore them
* Compression of WAL files that can be configured on a per server
basis using compression/decompression filters, both predefined (gzip
and bzip2) or custom
* Support for INI configuration file with global and per-server directives.
Default location for configuration files are /etc/barman.conf or
~/.barman.conf. The '-c' option allows users to specify a different one
* Simple indexing of base backups and WAL segments that does not require
a local database
* Maintenance mode (invoked through the 'cron' command) which performs
ordinary operations such as WAL archival and compression, catalog
updates, etc.
* Added the 'backup' command which takes a full physical base backup
of the given PostgreSQL server configured in Barman
* Added the 'recover' command which performs local recovery of a given
backup, allowing DBAs to specify a point in time. The 'recover' command
supports relocation of both the PGDATA directory and, where applicable,
the tablespaces
* Added the '--remote-ssh-command' option to the 'recover' command for
remote recovery of a backup. Remote recovery does not currently support
relocation of tablespaces
* Added the 'list-server' command that lists all the active servers
that have been configured in barman
* Added the 'show-server' command that shows the relevant information
for a given server, including all configuration options
* Added the 'status' command which shows information about the current
state of a server, including Postgres version, current transaction ID,
archive command, etc.
* Added the 'check' command which returns 0 if everything Barman needs
is functioning correctly
* Added the 'list-backup' command that lists all the available backups
for a given server, including size of the base backup and total size
of the related WAL segments
* Added the 'show-backup' command that shows the relevant information
for a given backup, including time of start, size, number of related
WAL segments and their size, etc.
* Added the 'delete' command which removes a backup from the catalog
* Added the 'list-files' command which lists all the files for a
single backup
* RPM Package for RHEL 5/6