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The Debezium team hangs out here as well as on Zulip (https://debezium.zulipchat.com/#narrow/stream/302529-users). Use either to ask questions, help others, share your experience, volunteer to contribute, request features or report problems (although you'll likely will be asked to file an issue at https://issues.redhat.com/projects/DBZ/issues). Check out our code repositories at https://github.com/debezium/.

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Vladislav P, Chris Cranford6

1:41 AM

Source connector optimization

We managed to get statistics on switching the log and it turned out to be sad среда, 3 декабря 2025 г

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Source connector optimization

We managed to get statistics on switching the log and it turned out to be sad среда, 3 декабря 2025 г

1:41 AM

Vinoth Kumar, Chris Cranford25

Dec 2

Offset SCN stucks and not proceeding during HIGH Transactions

Long running transactions will influence the low watermark advancing. Having multiple connectors

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Offset SCN stucks and not proceeding during HIGH Transactions

Long running transactions will influence the low watermark advancing. Having multiple connectors

Dec 2

Mukesh Kumar, Chris Cranford2

Dec 2

Running JDBC Sink connector from latest offset setting

Hi Mukesh - This isn't Debezium specific, but instead has to do with how the sink connector is

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Running JDBC Sink connector from latest offset setting

Hi Mukesh - This isn't Debezium specific, but instead has to do with how the sink connector is

Dec 2

Stephen Tyndall, Mario Fiore Vitale2

Dec 2

Long-running MySQL incremental snapshot restarting or failing to resume at last_processed_key?

Hi, could you please enable trace logs for `io.debezium.pipeline.source.snapshot.incremental` package

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Long-running MySQL incremental snapshot restarting or failing to resume at last_processed_key?

Hi, could you please enable trace logs for `io.debezium.pipeline.source.snapshot.incremental` package

Dec 2

Олександр Тупчієнко, Chris Cranford12

Dec 1

[Oracle Connector] Full Load + CDC count mismatch (Oracle 19c, Debezium 3.2.0)

Hi, That's unlikely. If these are changes that are performed in transactions that span the

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[Oracle Connector] Full Load + CDC count mismatch (Oracle 19c, Debezium 3.2.0)

Hi, That's unlikely. If these are changes that are performed in transactions that span the

Dec 1

Dec 1

Moving issue tracking to GitHub

Hi Everyone! As part of Debezium's transition to the Commonhaus Foundation, we're evolving

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Moving issue tracking to GitHub

Hi Everyone! As part of Debezium's transition to the Commonhaus Foundation, we're evolving

Dec 1

Gergely Jahn, Chris Cranford6

Nov 30

signal.data.collection separate schema

Hi Chris, Sorry for the late reply, here is the jira ticket: https://issues.redhat.com/browse/DBZ-

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signal.data.collection separate schema

Hi Chris, Sorry for the late reply, here is the jira ticket: https://issues.redhat.com/browse/DBZ-

Nov 30

Kiril Piskunof, … Chris Cranford6

Nov 28

Oracle table schema generation: PK columns marked optional

Please raise a Jira issue and a PR if you are able Andy. On 11/28/25 3:48 AM, Andrew Coates wrote: Hi

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Oracle table schema generation: PK columns marked optional

Please raise a Jira issue and a PR if you are able Andy. On 11/28/25 3:48 AM, Andrew Coates wrote: Hi

Nov 28

Nov 28

Bug in Oracle Connector: PK columns potentially marked as optional

Hi folks, I believe we've encountered a bug in the oracle connector around how it builds a

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Bug in Oracle Connector: PK columns potentially marked as optional

Hi folks, I believe we've encountered a bug in the oracle connector around how it builds a

Nov 28

Nov 28

Bug in ad hoc Oracle table schema generation: PK columns marked optional

Hi folks, I believe we've encountered a bug in the oracle connector around how it builds a

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Bug in ad hoc Oracle table schema generation: PK columns marked optional

Hi folks, I believe we've encountered a bug in the oracle connector around how it builds a

Nov 28

Vladislav P, Chris Cranford2

Nov 27

Using transformations

Hi - Of course you can; however if you are not flattening the source event from the source connector,

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Using transformations

Hi - Of course you can; however if you are not flattening the source event from the source connector,

Nov 27

Nelson de Menezes Neto (Meneizs), Chris Cranford4

Nov 27

SOS - AWS RDS Oracle connection

I'm afraid we're potentially mixing terminology here and I want to be very clear. Please

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SOS - AWS RDS Oracle connection

I'm afraid we're potentially mixing terminology here and I want to be very clear. Please

Nov 27

Sokunrithy Tiv, Chris Cranford5

Nov 25

Debezium connector set up issue

Thanks Chris. I thought those parameters not required On Sunday, November 23, 2025 at 1:14:06 AM UTC+

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Debezium connector set up issue

Thanks Chris. I thought those parameters not required On Sunday, November 23, 2025 at 1:14:06 AM UTC+

Nov 25

Vladislav P, Chris Cranford8

Nov 25

Increase the capacity of sink-connectors

Hi - I believe you misunderstand how "log.mining.transaction.retention.ms" works. This isn

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Increase the capacity of sink-connectors

Hi - I believe you misunderstand how "log.mining.transaction.retention.ms" works. This isn

Nov 25

Vitor Pereira, Chris Cranford2

Nov 25

[ORACLE] Ad-hoc snapshot - Incremental

Hi Vitor - I suspect that the chunk size of 5000 is not very efficient. When a table is large, like

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[ORACLE] Ad-hoc snapshot - Incremental

Hi Vitor - I suspect that the chunk size of 5000 is not very efficient. When a table is large, like

Nov 25

Pavan Manda, … Prabhatika Vij9

Nov 23

Connector getting Inactive due to replication slot PID already exists ERROR

Hey Chris, Thank you so much for your reply. We will configure the timeout for WalSender. Thank you

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Connector getting Inactive due to replication slot PID already exists ERROR

Hey Chris, Thank you so much for your reply. We will configure the timeout for WalSender. Thank you

Nov 23

Joseph Aliase, Chris Cranford4

Nov 21

Debezium Embedded Engine.

Thank you Chris. On Fri, Nov 21, 2025 at 3:09 PM Chris Cranford <cran...@gmail.com> wrote: Hi,

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Debezium Embedded Engine.

Thank you Chris. On Fri, Nov 21, 2025 at 3:09 PM Chris Cranford <cran...@gmail.com> wrote: Hi,

Nov 21

Quan Le Anh, Chris Cranford2

Nov 21

Debezium 2.5 for Mongodb 4.4 - CDC stops working after a few days and incremental snapshot can no longer work

Hi I'm afraid Debezium 2.5 and MongoDB 4 are quite old at this point in time and no longer

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Debezium 2.5 for Mongodb 4.4 - CDC stops working after a few days and incremental snapshot can no longer work

Hi I'm afraid Debezium 2.5 and MongoDB 4 are quite old at this point in time and no longer

Nov 21

marcellov, Chris Cranford2

Nov 21

Subject: Inquiry Regarding Archive Log Directory Structure for Oracle RAC + ASM with Debezium CDC

Hi - Debezium does not care about the physical location on disk where the logs are stored, but rather

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Subject: Inquiry Regarding Archive Log Directory Structure for Oracle RAC + ASM with Debezium CDC

Hi - Debezium does not care about the physical location on disk where the logs are stored, but rather

Nov 21

Bin Hu, Alvar Viana2

Nov 21

Supported Debezium version on OCP 4.20

Hello Bin! I am Alvar a QE in Debezium team and I am leading the testing efforts to verify everything

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Supported Debezium version on OCP 4.20

Hello Bin! I am Alvar a QE in Debezium team and I am leading the testing efforts to verify everything

Nov 21

Vinoth Kumar, Chris Cranford5

Nov 20

Incremental snapshot - Connection closed for BIG tables via SIGNAL

Hi, The driver.oracle.net.keepAlive or similar are to be set in the connector configuration. As to

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Incremental snapshot - Connection closed for BIG tables via SIGNAL

Hi, The driver.oracle.net.keepAlive or similar are to be set in the connector configuration. As to

Nov 20

Vladislav P, Chris Cranford6

Nov 20

Long data reading. Error deleting logs.

Hi - For (1), that's mostly correct, but there is a small caveat. Yes, you have the historical

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Long data reading. Error deleting logs.

Hi - For (1), that's mostly correct, but there is a small caveat. Yes, you have the historical

Nov 20

Sokunrithy Tiv, Chris Cranford3

Nov 17

SOS : Setting up Debezium SQL server Source Connector

Hello Chris, Thank you so much for the detail's explanation of each parameters as well as the

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SOS : Setting up Debezium SQL server Source Connector

Hello Chris, Thank you so much for the detail's explanation of each parameters as well as the

Nov 17

Vladislav P, … jiri.p...@gmail.com19

Nov 13

__debezium.newkey

Great, it worked! Thank you very much. четверг, 13 ноября 2025 г. в 20:46:02 UTC+4, jiri.p...@gmail.

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__debezium.newkey

Great, it worked! Thank you very much. четверг, 13 ноября 2025 г. в 20:46:02 UTC+4, jiri.p...@gmail.

Nov 13

Sumit Jha, jiri.p...@gmail.com2

Nov 13

MongoDB SMT for BSON unwrapping

Hi, could you please try using Debezium 3.3.1.Final? Also could you please share the complete log,

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MongoDB SMT for BSON unwrapping

Hi, could you please try using Debezium 3.3.1.Final? Also could you please share the complete log,

Nov 13

Antonio Bardazzi, … jiri.p...@gmail.com5

Nov 13

PostgreSQL source connector "Last recorded offset is no longer available on the server."

Hi, as you can see in the linked issue an Chris' explanation - there was a bug that on the

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PostgreSQL source connector "Last recorded offset is no longer available on the server."

Hi, as you can see in the linked issue an Chris' explanation - there was a bug that on the

Nov 13

Vladislav P, Chris Cranford16

Nov 13

incremental snapshot prod

There we go, so DEST_ID=1 in your V$ARCHIVED_LOG table shows the NAME is NULL and the STATUS as D --

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incremental snapshot prod

There we go, so DEST_ID=1 in your V$ARCHIVED_LOG table shows the NAME is NULL and the STATUS as D --

Nov 13

Stefan Viteza, … Chris Cranford6

Nov 12

Oracle connector intermittent ORA-00942 after ~1h (common user, Oracle 19c, Debezium 3.0.3.Final, Java 17)

Hi Stefan - Looking at the stack trace, this would indicate that the user has no ability to query V$

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Oracle connector intermittent ORA-00942 after ~1h (common user, Oracle 19c, Debezium 3.0.3.Final, Java 17)

Hi Stefan - Looking at the stack trace, this would indicate that the user has no ability to query V$

Nov 12

Caio Ignatz Martins, Chris Cranford3

Nov 12

Unable to use Signal with Debezium + Postgres + Pub/Sub

Hello, Chris Thank you very much for the help. I managed to get it working by following your

unread,

Unable to use Signal with Debezium + Postgres + Pub/Sub

Hello, Chris Thank you very much for the help. I managed to get it working by following your

Nov 12

Ramesh K, … Vladislav P13

Nov 7

ORA-00308 – Debezium oracle Connector Crash (Missing Archived Log 1618)

Hi Ramesh! Did Chris's advice help you solve the problem? (Chris: "If the script runs every

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ORA-00308 – Debezium oracle Connector Crash (Missing Archived Log 1618)

Hi Ramesh! Did Chris's advice help you solve the problem? (Chris: "If the script runs every

Nov 7

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