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Posted to user@flink.apache.org by Sachin Mittal <sj...@gmail.com> on 2026/05/25 14:57:04 UTC
What version of Debezium does Flink CDC uses ?
Hi,
I was checking the Flink CDC release 3.6 and I see that it is using the
debezium core version on 1.9.
However when I check the debezium release, it has a stable release version
of 3.5.
Why is there such a huge gap?
The problem I am facing is that for Oracle CDC I am getting PGA limit
exceeded exception many times and some analysis has suggested moving to a
latest debezium release as they had fixed on how logminer is read in their
later versions.
Can someone from the Flink CDC team or developer comment on the same ?
Thanks
Sachin
Re: What version of Debezium does Flink CDC uses ?
Posted by Venkata Raman Tondepu <ve...@gmail.com>.
+1 (my use case is to use latest postgres cdc debezium jar )
Thanks
Raman
On Mon, May 25, 2026, 7:57 AM Sachin Mittal <sj...@gmail.com> wrote:
> Hi,
> I was checking the Flink CDC release 3.6 and I see that it is using the
> debezium core version on 1.9.
> However when I check the debezium release, it has a stable release version
> of 3.5.
> Why is there such a huge gap?
>
> The problem I am facing is that for Oracle CDC I am getting PGA limit
> exceeded exception many times and some analysis has suggested moving to a
> latest debezium release as they had fixed on how logminer is read in their
> later versions.
>
> Can someone from the Flink CDC team or developer comment on the same ?
>
> Thanks
> Sachin
>
>
Re: What version of Debezium does Flink CDC uses ?
Posted by Sachin Mittal <sj...@gmail.com>.
Hi Xiqian,
So what does this change entail? Does it just involve changing the debezium
version in our POM xml?
Thanks
Sachin
On Tue, May 26, 2026 at 9:46 AM Xiqian YU <ko...@outlook.com> wrote:
> Hi Sachin,
>
> Currently, Flink CDC still uses Debezium 1.9.8.Final with various
> backported patches, most of them are monkey-patched files located in the
> `io.debezium` package. We were stuck at 1.x for a long time because
> Debezium 2.0+ requires at least Java 11.
>
> There is an open JIRA ticket, FLINK-36605 [1], aiming to upgrade Debezium
> to 2.7. As FLINK-38730 [2] has dropped Flink CDC's Java 8 support, this
> ticket seems doable now.
>
> Best Regards,
> Xiqian
>
> [1] https://issues.apache.org/jira/browse/FLINK-36605
> [2] https://issues.apache.org/jira/browse/FLINK-38730
>
> > Sachin Mittal <sj...@gmail.com> 於 2026年5月25日 22:57 寫道：
> >
> > Hi,
> > I was checking the Flink CDC release 3.6 and I see that it is using the
> debezium core version on 1.9.
> > However when I check the debezium release, it has a stable release
> version of 3.5.
> > Why is there such a huge gap?
> >
> > The problem I am facing is that for Oracle CDC I am getting PGA limit
> exceeded exception many times and some analysis has suggested moving to a
> latest debezium release as they had fixed on how logminer is read in their
> later versions.
> >
> > Can someone from the Flink CDC team or developer comment on the same ?
> >
> > Thanks
> > Sachin
> >
>
>
Re: What version of Debezium does Flink CDC uses ?
Posted by Xiqian YU <ko...@outlook.com>.
Hi Sachin,
Currently, Flink CDC still uses Debezium 1.9.8.Final with various backported patches, most of them are monkey-patched files located in the `io.debezium` package. We were stuck at 1.x for a long time because Debezium 2.0+ requires at least Java 11.
There is an open JIRA ticket, FLINK-36605 [1], aiming to upgrade Debezium to 2.7. As FLINK-38730 [2] has dropped Flink CDC's Java 8 support, this ticket seems doable now.
Best Regards,
Xiqian
[1] https://issues.apache.org/jira/browse/FLINK-36605
[2] https://issues.apache.org/jira/browse/FLINK-38730
> Sachin Mittal <sj...@gmail.com> 於 2026年5月25日 22:57 寫道：
>
> Hi,
> I was checking the Flink CDC release 3.6 and I see that it is using the debezium core version on 1.9.
> However when I check the debezium release, it has a stable release version of 3.5.
> Why is there such a huge gap?
>
> The problem I am facing is that for Oracle CDC I am getting PGA limit exceeded exception many times and some analysis has suggested moving to a latest debezium release as they had fixed on how logminer is read in their later versions.
>
> Can someone from the Flink CDC team or developer comment on the same ?
>
> Thanks
> Sachin
>