5 December 2019: 2ndQuadrant is proud to announce the release of Barman version 2.10, a Backup and Recovery Manager for PostgreSQL.
This minor release introduces verification of the PostgreSQL instance's system identifier in the
check command, in order to prevent users from executing commands in Barman when there is an inconsistency between the situation on disk and the live information coming from the PostgreSQL connection(s). Barman will prevent users from taking a backup or archiving a WAL file on an existing folder that contains data from another instance with a different identifier.
Barman 2.10 automates recovery of
.partial WAL files coming from streaming replication, making RPO=0 easier to achieve, with
barman-cli package) and
A new server/global option called
create_slot controls automated creation of the replication slot, where required (
streaming_archiver must be enabled, and
slot_name defined). If set to
auto, Barman automatically creates the
slot_name replication slot in PostgreSQL. By default, this option is set to
manual for back-compatibility.
Barman 2.10 brings two new utilities to the
barman-cloud-wal-archive: script to be used as
archive_commandin PostgreSQL to directly ship WAL files to AWS S3 for permanent storage in the cloud;
barman-cloud-backup: script to be used to perform full base backups from the PostgreSQL server in tar format and to ship them directly to AWS S3 for permanent storage in the cloud.
Both utilities rely on the
boto3 Python library. The equivalent restore commands to these will be added in a future release. Until then, restoration is manual - for example you can make use of the AWS client to retrieve files from S3 buckets.
barman-cli package, which contains "Barman Client Utilities", is recommended on those servers where PostgreSQL instances are running.
Minor bugs have also been fixed.
For a complete list of changes, please refer to the release notes for version 2.10.
Pull .partial WAL files with
restore_commandin a recovery scenario to fetch a partial WAL file's content from the Barman server. This feature simplifies and enhances RPO=0 recovery operations.
Store the PostgreSQL system identifier in the server directory and inside the backup information file. Improve
checkcommand to verify the consistency of the system identifier with active connections (standard and replication) and data on disk.
A new script called
barman-cloud-wal-archivehas been added to the
barman-clipackage to directly ship WAL files from PostgreSQL (using
archive_command) to cloud object storage services that are compatible with AWS S3. It supports encryption and compression.
A new script called
barman-cloud-backuphas been added to the
barman-clipackage to directly ship base backups from a local PostgreSQL server to cloud object storage services that are compatible with AWS S3. It supports encryption, parallel upload, compression.
Automated creation of replication slots through the server/global option
create_slot. When set to
auto, Barman creates the replication slot, in case
streaming_archiveris enabled and
slot_nameis defined. The default value is
Add '-w/--wait' option to backup command, making Barman wait for all required WAL files to be archived before considering the backup completed. Add also the
--wait-timeoutoption (default 0, no timeout).
Redact passwords from Barman output, in particular from
Improve robustness of
receive-wal --resetcommand, by verifying that the last partial file is aligned with the current location or, if present, with replication slot's.