[CASSANDRA-3238] Issue with multi region ec2 and replication updates

• Type: Bug
• Status: Resolved
• Priority: Low
• Resolution: Not A Problem
• Fix Version/s: 1.0.0
• Severity: Low
• Assignee: Vijay
• Reporter: Nick Bailey

Authors

Vijay

• Created: 21/Sep/11 21:14
• Updated: 16/Apr/19 09:32
• Resolved: 07/Oct/11 16:05

Description

Using the Ec2MultiRegionSnitch and updating replication settings for a keyspace seems to cause some issues that require a rolling restart to fix. The following was observed when updating a keyspace from SimpleStrategy to NTS in a multi region environment:

• All repairs would hang. Even repairs only against a keyspace that was not updated.
• Reads at CL.ONE would start to go across region

After a rolling restart of the cluster, repairs started working correctly again and reads stayed local to the region.