[MDEV-21862] SHOW BINLOG EVENTS completely locks down writes to binlog, hence transactions Created: 2020-03-03  Updated: 2023-04-27

Status: Confirmed
Project: MariaDB Server
Component/s: Replication
Affects Version/s: 10.1, 10.2, 10.3, 10.4
Fix Version/s: 10.4

Type: Bug Priority: Major
Reporter: Sujatha Sivakumar (Inactive) Assignee: Andrei Elkin
Resolution: Unresolved Votes: 0
Labels: None


 Description   

While a `SHOW BINLOG EVENTS IN 'logfile' LIMIT X,Y` is executing, any write statement is blocked.

Implement upstream changes.

commit 739ac25439176f309cd2132ce16fe49d918127c7
Author: Venkatesh Duggirala <venkatesh.duggirala@oracle.com>
Date: Tue Aug 18 17:29:02 2015 +0530
BUG#20928790 SHOW BINLOG EVENTS COMPLETELY LOCKS DOWN WRITES TO BINLOG, HENCE TRANSACTIONS.
Problem: While a `SHOW BINLOG EVENTS` is executing, any parallel transaction
is blocked.
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