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pgsql: Fix assertion failure with replication slot release in single-us
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* pgsql: Fix assertion failure with replication slot release in single-us
@ 2025-08-20 06:00 Michael Paquier <michael@paquier.xyz>
  0 siblings, 0 replies; 7+ messages in thread

From: Michael Paquier @ 2025-08-20 06:00 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Fix assertion failure with replication slot release in single-user mode

Some replication slot manipulations (logical decoding via SQL,
advancing) were failing an assertion when releasing a slot in
single-user mode, because active_pid was not set in a ReplicationSlot
when its slot is acquired.

ReplicationSlotAcquire() has some logic to be able to work with the
single-user mode.  This commit sets ReplicationSlot->active_pid to
MyProcPid, to let the slot-related logic fall-through, considering the
single process as the one holding the slot.

Some TAP tests are added for various replication slot functions with the
single-user mode, while on it, for slot creation, drop, advancing, copy
and logical decoding with multiple slot types (temporary, physical vs
logical).  These tests are skipped on Windows, as direct calls of
postgres --single would fail on permission failures.  There is no
platform-specific behavior that needs to be checked, so living with this
restriction should be fine.  The CI is OK with that, now let's see what
the buildfarm tells.

Author: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Reviewed-by: Paul A. Jungwirth <pj@illuminatedcomputing.com>
Reviewed-by: Mutaamba Maasha <maasha@gmail.com>
Discussion: https://postgr.es/m/OSCPR01MB14966ED588A0328DAEBE8CB25F5FA2@OSCPR01MB14966.jpnprd01.prod.outlook.com
Backpatch-through: 13

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/1f2e51e3c7c2042e4cb184b9a9030c1353de298e

Modified Files
--------------
src/backend/replication/slot.c                     |  2 +-
src/test/modules/test_misc/Makefile                |  3 +-
src/test/modules/test_misc/meson.build             |  1 +
.../test_misc/t/008_replslot_single_user.pl        | 95 ++++++++++++++++++++++
4 files changed, 99 insertions(+), 2 deletions(-)



^ permalink  raw  reply  [nested|flat] 7+ messages in thread

* pgsql: Fix assertion failure with replication slot release in single-us
@ 2025-08-20 06:00 Michael Paquier <michael@paquier.xyz>
  0 siblings, 0 replies; 7+ messages in thread

From: Michael Paquier @ 2025-08-20 06:00 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Fix assertion failure with replication slot release in single-user mode

Some replication slot manipulations (logical decoding via SQL,
advancing) were failing an assertion when releasing a slot in
single-user mode, because active_pid was not set in a ReplicationSlot
when its slot is acquired.

ReplicationSlotAcquire() has some logic to be able to work with the
single-user mode.  This commit sets ReplicationSlot->active_pid to
MyProcPid, to let the slot-related logic fall-through, considering the
single process as the one holding the slot.

Some TAP tests are added for various replication slot functions with the
single-user mode, while on it, for slot creation, drop, advancing, copy
and logical decoding with multiple slot types (temporary, physical vs
logical).  These tests are skipped on Windows, as direct calls of
postgres --single would fail on permission failures.  There is no
platform-specific behavior that needs to be checked, so living with this
restriction should be fine.  The CI is OK with that, now let's see what
the buildfarm tells.

Author: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Reviewed-by: Paul A. Jungwirth <pj@illuminatedcomputing.com>
Reviewed-by: Mutaamba Maasha <maasha@gmail.com>
Discussion: https://postgr.es/m/OSCPR01MB14966ED588A0328DAEBE8CB25F5FA2@OSCPR01MB14966.jpnprd01.prod.outlook.com
Backpatch-through: 13

Branch
------
REL_18_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/ea1c6b0b0aec43b1cd513945f618793ce3343347

Modified Files
--------------
src/backend/replication/slot.c                     |  2 +-
src/test/modules/test_misc/Makefile                |  3 +-
src/test/modules/test_misc/meson.build             |  1 +
.../test_misc/t/008_replslot_single_user.pl        | 95 ++++++++++++++++++++++
4 files changed, 99 insertions(+), 2 deletions(-)



^ permalink  raw  reply  [nested|flat] 7+ messages in thread

* pgsql: Fix assertion failure with replication slot release in single-us
@ 2025-08-20 06:00 Michael Paquier <michael@paquier.xyz>
  0 siblings, 0 replies; 7+ messages in thread

From: Michael Paquier @ 2025-08-20 06:00 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Fix assertion failure with replication slot release in single-user mode

Some replication slot manipulations (logical decoding via SQL,
advancing) were failing an assertion when releasing a slot in
single-user mode, because active_pid was not set in a ReplicationSlot
when its slot is acquired.

ReplicationSlotAcquire() has some logic to be able to work with the
single-user mode.  This commit sets ReplicationSlot->active_pid to
MyProcPid, to let the slot-related logic fall-through, considering the
single process as the one holding the slot.

Some TAP tests are added for various replication slot functions with the
single-user mode, while on it, for slot creation, drop, advancing, copy
and logical decoding with multiple slot types (temporary, physical vs
logical).  These tests are skipped on Windows, as direct calls of
postgres --single would fail on permission failures.  There is no
platform-specific behavior that needs to be checked, so living with this
restriction should be fine.  The CI is OK with that, now let's see what
the buildfarm tells.

Author: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Reviewed-by: Paul A. Jungwirth <pj@illuminatedcomputing.com>
Reviewed-by: Mutaamba Maasha <maasha@gmail.com>
Discussion: https://postgr.es/m/OSCPR01MB14966ED588A0328DAEBE8CB25F5FA2@OSCPR01MB14966.jpnprd01.prod.outlook.com
Backpatch-through: 13

Branch
------
REL_17_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/07a302387176e2107aa09c598091a8eb73a7d70f

Modified Files
--------------
src/backend/replication/slot.c                     |  2 +-
src/test/modules/test_misc/Makefile                |  3 +-
src/test/modules/test_misc/meson.build             |  1 +
.../test_misc/t/008_replslot_single_user.pl        | 95 ++++++++++++++++++++++
4 files changed, 99 insertions(+), 2 deletions(-)



^ permalink  raw  reply  [nested|flat] 7+ messages in thread

* pgsql: Fix assertion failure with replication slot release in single-us
@ 2025-08-20 06:00 Michael Paquier <michael@paquier.xyz>
  0 siblings, 0 replies; 7+ messages in thread

From: Michael Paquier @ 2025-08-20 06:00 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Fix assertion failure with replication slot release in single-user mode

Some replication slot manipulations (logical decoding via SQL,
advancing) were failing an assertion when releasing a slot in
single-user mode, because active_pid was not set in a ReplicationSlot
when its slot is acquired.

ReplicationSlotAcquire() has some logic to be able to work with the
single-user mode.  This commit sets ReplicationSlot->active_pid to
MyProcPid, to let the slot-related logic fall-through, considering the
single process as the one holding the slot.

Some TAP tests are added for various replication slot functions with the
single-user mode, while on it, for slot creation, drop, advancing, copy
and logical decoding with multiple slot types (temporary, physical vs
logical).  These tests are skipped on Windows, as direct calls of
postgres --single would fail on permission failures.  There is no
platform-specific behavior that needs to be checked, so living with this
restriction should be fine.  The CI is OK with that, now let's see what
the buildfarm tells.

Author: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Reviewed-by: Paul A. Jungwirth <pj@illuminatedcomputing.com>
Reviewed-by: Mutaamba Maasha <maasha@gmail.com>
Discussion: https://postgr.es/m/OSCPR01MB14966ED588A0328DAEBE8CB25F5FA2@OSCPR01MB14966.jpnprd01.prod.outlook.com
Backpatch-through: 13

Branch
------
REL_16_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/fea1cc3f75ff6376e27ceb43a655c403f2fe31ef

Modified Files
--------------
src/backend/replication/slot.c                     |  2 +-
src/test/modules/test_misc/Makefile                |  2 +
src/test/modules/test_misc/meson.build             |  1 +
.../test_misc/t/008_replslot_single_user.pl        | 95 ++++++++++++++++++++++
4 files changed, 99 insertions(+), 1 deletion(-)



^ permalink  raw  reply  [nested|flat] 7+ messages in thread

* pgsql: Fix assertion failure with replication slot release in single-us
@ 2025-08-20 06:00 Michael Paquier <michael@paquier.xyz>
  0 siblings, 0 replies; 7+ messages in thread

From: Michael Paquier @ 2025-08-20 06:00 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Fix assertion failure with replication slot release in single-user mode

Some replication slot manipulations (logical decoding via SQL,
advancing) were failing an assertion when releasing a slot in
single-user mode, because active_pid was not set in a ReplicationSlot
when its slot is acquired.

ReplicationSlotAcquire() has some logic to be able to work with the
single-user mode.  This commit sets ReplicationSlot->active_pid to
MyProcPid, to let the slot-related logic fall-through, considering the
single process as the one holding the slot.

Some TAP tests are added for various replication slot functions with the
single-user mode, while on it, for slot creation, drop, advancing, copy
and logical decoding with multiple slot types (temporary, physical vs
logical).  These tests are skipped on Windows, as direct calls of
postgres --single would fail on permission failures.  There is no
platform-specific behavior that needs to be checked, so living with this
restriction should be fine.  The CI is OK with that, now let's see what
the buildfarm tells.

Author: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Reviewed-by: Paul A. Jungwirth <pj@illuminatedcomputing.com>
Reviewed-by: Mutaamba Maasha <maasha@gmail.com>
Discussion: https://postgr.es/m/OSCPR01MB14966ED588A0328DAEBE8CB25F5FA2@OSCPR01MB14966.jpnprd01.prod.outlook.com
Backpatch-through: 13

Branch
------
REL_15_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/818be9b73c945e480805fff7e24101da161f71d1

Modified Files
--------------
src/backend/replication/slot.c                     |  2 +-
src/test/modules/test_misc/Makefile                |  2 +
.../test_misc/t/008_replslot_single_user.pl        | 95 ++++++++++++++++++++++
3 files changed, 98 insertions(+), 1 deletion(-)



^ permalink  raw  reply  [nested|flat] 7+ messages in thread

* pgsql: Fix assertion failure with replication slot release in single-us
@ 2025-08-20 06:00 Michael Paquier <michael@paquier.xyz>
  0 siblings, 0 replies; 7+ messages in thread

From: Michael Paquier @ 2025-08-20 06:00 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Fix assertion failure with replication slot release in single-user mode

Some replication slot manipulations (logical decoding via SQL,
advancing) were failing an assertion when releasing a slot in
single-user mode, because active_pid was not set in a ReplicationSlot
when its slot is acquired.

ReplicationSlotAcquire() has some logic to be able to work with the
single-user mode.  This commit sets ReplicationSlot->active_pid to
MyProcPid, to let the slot-related logic fall-through, considering the
single process as the one holding the slot.

Some TAP tests are added for various replication slot functions with the
single-user mode, while on it, for slot creation, drop, advancing, copy
and logical decoding with multiple slot types (temporary, physical vs
logical).  These tests are skipped on Windows, as direct calls of
postgres --single would fail on permission failures.  There is no
platform-specific behavior that needs to be checked, so living with this
restriction should be fine.  The CI is OK with that, now let's see what
the buildfarm tells.

Author: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Reviewed-by: Paul A. Jungwirth <pj@illuminatedcomputing.com>
Reviewed-by: Mutaamba Maasha <maasha@gmail.com>
Discussion: https://postgr.es/m/OSCPR01MB14966ED588A0328DAEBE8CB25F5FA2@OSCPR01MB14966.jpnprd01.prod.outlook.com
Backpatch-through: 13

Branch
------
REL_14_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/32d388d00f9f8c0873ad02ec4be2d88caaa3a359

Modified Files
--------------
src/backend/replication/slot.c                     |  2 +-
src/test/modules/test_misc/Makefile                |  2 +
.../test_misc/t/008_replslot_single_user.pl        | 95 ++++++++++++++++++++++
3 files changed, 98 insertions(+), 1 deletion(-)



^ permalink  raw  reply  [nested|flat] 7+ messages in thread

* pgsql: Fix assertion failure with replication slot release in single-us
@ 2025-08-20 06:00 Michael Paquier <michael@paquier.xyz>
  0 siblings, 0 replies; 7+ messages in thread

From: Michael Paquier @ 2025-08-20 06:00 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

Fix assertion failure with replication slot release in single-user mode

Some replication slot manipulations (logical decoding via SQL,
advancing) were failing an assertion when releasing a slot in
single-user mode, because active_pid was not set in a ReplicationSlot
when its slot is acquired.

ReplicationSlotAcquire() has some logic to be able to work with the
single-user mode.  This commit sets ReplicationSlot->active_pid to
MyProcPid, to let the slot-related logic fall-through, considering the
single process as the one holding the slot.

Some TAP tests are added for various replication slot functions with the
single-user mode, while on it, for slot creation, drop, advancing, copy
and logical decoding with multiple slot types (temporary, physical vs
logical).  These tests are skipped on Windows, as direct calls of
postgres --single would fail on permission failures.  There is no
platform-specific behavior that needs to be checked, so living with this
restriction should be fine.  The CI is OK with that, now let's see what
the buildfarm tells.

Author: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Reviewed-by: Paul A. Jungwirth <pj@illuminatedcomputing.com>
Reviewed-by: Mutaamba Maasha <maasha@gmail.com>
Discussion: https://postgr.es/m/OSCPR01MB14966ED588A0328DAEBE8CB25F5FA2@OSCPR01MB14966.jpnprd01.prod.outlook.com
Backpatch-through: 13

Branch
------
REL_13_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/8ed079cad8241ae8ba6bf8ffd1212d0ca487cb19

Modified Files
--------------
src/backend/replication/slot.c                     |  2 +-
src/test/modules/test_misc/Makefile                |  2 +
.../test_misc/t/008_replslot_single_user.pl        | 95 ++++++++++++++++++++++
3 files changed, 98 insertions(+), 1 deletion(-)



^ permalink  raw  reply  [nested|flat] 7+ messages in thread


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Thread overview: 7+ messages (download: mbox mbox.gz follow: Atom feed)
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2025-08-20 06:00 pgsql: Fix assertion failure with replication slot release in single-us Michael Paquier <michael@paquier.xyz>
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2025-08-20 06:00 pgsql: Fix assertion failure with replication slot release in single-us Michael Paquier <michael@paquier.xyz>
2025-08-20 06:00 pgsql: Fix assertion failure with replication slot release in single-us Michael Paquier <michael@paquier.xyz>
2025-08-20 06:00 pgsql: Fix assertion failure with replication slot release in single-us Michael Paquier <michael@paquier.xyz>

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