Bug #97800 lost binlog when sync-binlog=1 in single primary group replication
Submitted: 26 Nov 2019 14:21 Modified: 10 Jan 2020 13:06
Reporter: 仁刚 谭 Email Updates:
Status: No Feedback Impact on me:
None 
Category:MySQL Server: Group Replication Severity:S1 (Critical)
Version:MySQL 8.0.18 OS:Red Hat (7.4)
Assigned to: MySQL Verification Team CPU Architecture:x86
Tags: binlog, group replication

[26 Nov 2019 14:21] 仁刚 谭 
Description:
in single primary group replication innodb cluster
the primary node blackout then lost binlog when sync-binlog=1 when secondary node have these binlog

How to repeat:
1,create a single primary group replication, include MGR , MySQL router， MySQL shell
2，write data to a table through app with mulit threads
3,blackout then primary node
4,start the primary node and not mysql
5,compare then binlog between primary and secondary through mysqlbinlog
[10 Dec 2019 13:06] MySQL Verification Team 
Hi,

Can you explain what you mean by

3,blackout then primary node
4,start the primary node and not mysql
[11 Jan 2020 1:00] Bugs System 
No feedback was provided for this bug for over a month, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".