Bug #84729 Group Replication: Block Reads On Partitioned Nodes
Submitted: 31 Jan 2017 8:39 Modified: 31 Jan 2017 9:03
Reporter: Kenny Gryp Email Updates:
Status: Verified Impact on me:
Category:MySQL Server: Group Replication Severity:S4 (Feature request)
Version:5.7.17 OS:Any
Assigned to: CPU Architecture:Any
Triage: Needs Triage: D5 (Feature request)

[31 Jan 2017 8:39] Kenny Gryp
With group replication, when a node is partitioned, you can still read from it

(This is a feature request that is related to the bug https://bugs.mysql.com/bug.php?id=84727)

How to repeat:
- get GR cluster up and running
- do 'ifconfig eth0 down' on a node, effectively partitioning it
- do a select

Suggested fix:
add a variable to block reads from succeeding on partitioned nodes.
[31 Jan 2017 9:03] Umesh Shastry
Hello Kenny Gryp,

Thank you for the report and feature request.