Thread

1. Patroni basebackup server compression not working in 4.1.1

   Radu Radutiu <rradutiu@gmail.com> — 2026-04-22T07:30:16Z

   Hi,
   
   I am not able to enable basebackup server compression feature, which is new
   in patroni 4.1.1.
   OS: OEL 9.7
   Patroni version: patroni-4.1.1-1PGDG.rhel9.7.noarch
   Postgres: postgresql18-server-18.3-1PGDG.rhel9.7.x86_64
   The following setting has been added to DCS under postgresql:
   basebackup:
     - compress: server-zstd
   I still get the following error in the patroni.log:
   2026-04-22 02:51:44,693 ERROR: compress option for basebackup is not allowed
   2026-04-22 02:51:44,693 ERROR: Error when parsing basebackup key-value
   option server-zstd: only one key-value is allowed and value should be a
   string
   
   Has anyone been able to confirm that the feature is working?
   
   Best regards,
   Radu
   

2. Re: Patroni basebackup server compression not working in 4.1.1

   Adrian Klaver <adrian.klaver@aklaver.com> — 2026-04-22T14:47:34Z

   On 4/22/26 12:30 AM, Radu Radutiu wrote:
   > Hi,
   > 
   > I am not able to enable basebackup server compression feature, which is 
   > new in patroni 4.1.1.
   > OS: OEL 9.7
   > Patroni version: patroni-4.1.1-1PGDG.rhel9.7.noarch
   > Postgres: postgresql18-server-18.3-1PGDG.rhel9.7.x86_64
   > The following setting has been added to DCS under postgresql:
   > basebackup:
   >    - compress: server-zstd
   > I still get the following error in the patroni.log:
   > 2026-04-22 02:51:44,693 ERROR: compress option for basebackup is not allowed
   > 2026-04-22 02:51:44,693 ERROR: Error when parsing basebackup key-value 
   > option server-zstd: only one key-value is allowed and value should be a 
   > string
   
   Have you tried with?:
   
   - compress: 'server-zstd'
   
   Per:
   
   "ERROR: Error when parsing basebackup key-value option server-zstd: only 
   one key-value is allowed and value should be a string"
   
   > 
   > Has anyone been able to confirm that the feature is working?
   > 
   > Best regards,
   > Radu
   
   
   -- 
   Adrian Klaver
   adrian.klaver@aklaver.com
   
   
   
   

3. Re: Patroni basebackup server compression not working in 4.1.1

   Alexander Kukushkin <cyberdemn@gmail.com> — 2026-04-22T15:15:27Z

   It looks like a bug, it fails to correctly resolve the Postgres version
   when $PGDATA is empty :(
   
   On Wed, 22 Apr 2026 at 16:47, Adrian Klaver <adrian.klaver@aklaver.com>
   wrote:
   
   > On 4/22/26 12:30 AM, Radu Radutiu wrote:
   > > Hi,
   > >
   > > I am not able to enable basebackup server compression feature, which is
   > > new in patroni 4.1.1.
   > > OS: OEL 9.7
   > > Patroni version: patroni-4.1.1-1PGDG.rhel9.7.noarch
   > > Postgres: postgresql18-server-18.3-1PGDG.rhel9.7.x86_64
   > > The following setting has been added to DCS under postgresql:
   > > basebackup:
   > >    - compress: server-zstd
   > > I still get the following error in the patroni.log:
   > > 2026-04-22 02:51:44,693 ERROR: compress option for basebackup is not
   > allowed
   > > 2026-04-22 02:51:44,693 ERROR: Error when parsing basebackup key-value
   > > option server-zstd: only one key-value is allowed and value should be a
   > > string
   >
   > Have you tried with?:
   >
   > - compress: 'server-zstd'
   >
   > Per:
   >
   > "ERROR: Error when parsing basebackup key-value option server-zstd: only
   > one key-value is allowed and value should be a string"
   >
   > >
   > > Has anyone been able to confirm that the feature is working?
   > >
   > > Best regards,
   > > Radu
   >
   >
   > --
   > Adrian Klaver
   > adrian.klaver@aklaver.com
   >
   >
   >
   
   -- 
   Regards,
   --
   Alexander Kukushkin
   

4. Re: Patroni basebackup server compression not working in 4.1.1

   Radu Radutiu <rradutiu@gmail.com> — 2026-04-23T11:39:34Z

   >
   > Empty PGDATA is the main usecase for basebackup with patroni, should I
   > open a ticket? The documentation is also not updated for this feature.
   >
   
   Rest regards,
   Radu