Re: BUG #15744: Replication slot peak query throwing error for wrongsequence entry for toast chunk - Mailing list pgsql-bugs

On 2019-04-09 22:09, PG Bug reporting form wrote:
> PostgreSQL version: 9.6.3

This is very old.  9.6.12 is current.

> Behavior reported (Bug)
>   We have a replication slot running for successfully but recently we
> encountered following error: 
> 
> error: got sequence entry 2 for toast chunk 30954054 instead of seq 0

> Temporary resolution
>     After running the query 2-3 times, the error went away. But this causes
> the whole process to shut down. 
> 
> Is there any permanent resolution for the issue or is it resolved in the
> higher version of postgres? 

I've not seen this particular error, but there are a number of fixes
related to possible TOAST corruption, so this might be related to that.
Upgrading would certainly be the first step before investigating further.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services