Re: [BUG] "FailedAssertion" reported when streaming in logical replication - Mailing list pgsql-hackers

From Dilip Kumar
Subject Re: [BUG] "FailedAssertion" reported when streaming in logical replication
Date
Msg-id CAFiTN-uPZYcMVJuaHkVJ0xMwiXFgRrYXR6jSLxY3H_MqYGeO_w@mail.gmail.com
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In response to [BUG] "FailedAssertion" reported when streaming in logical replication  ("tanghy.fnst@fujitsu.com" <tanghy.fnst@fujitsu.com>)
Responses Re: [BUG] "FailedAssertion" reported when streaming in logical replication  (Dilip Kumar <dilipbalaut@gmail.com>)
List pgsql-hackers
On Mon, 26 Apr 2021 at 12:45 PM, tanghy.fnst@fujitsu.com <tanghy.fnst@fujitsu.com> wrote:
Hi

I think I may found a bug when using streaming in logical replication. Could anyone please take a look at this?

Here's what I did to produce the problem.
I set logical_decoding_work_mem and created multiple publications at publisher, created multiple subscriptions with "streaming = on" at subscriber.
However, an assertion failed at publisher when I COMMIT and ROLLBACK multiple transactions at the same time.

The log reported a FailedAssertion:
TRAP: FailedAssertion("txn->size == 0", File: "reorderbuffer.c", Line: 3465, PID: 911730)

The problem happens both in synchronous mode and asynchronous mode. When there are only one or two publications, It doesn't seem to happen. (In my case, there are 8 publications and the failure always happened).

The scripts and the log are attached. It took me about 4 minutes to run the script on my machine.
Please contact me if you need more specific info for the problem.


Thanks for reporting. I will look into it.
--
Regards,
Dilip Kumar
EnterpriseDB: http://www.enterprisedb.com

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