High Availability
113 TopicsMaking Service Broker Application Highly Available With AlwaysOn
First published on MSDN on Jan 26, 2017 If you have a Service Broker (SSB) application connecting to SQL Server using an AlwaysOn availability group listener, in the event of an unexpected failover, some messages may be lost or stuck in the transmission queue on the old primary (new secondary) after the failover.2.7KViews1like0CommentsConnection Timeouts in Multi-subnet Availability Group
First published on MSDN on Jun 03, 2014 THE DEFINITION One of the issues that generates a lot of call volume we see on the AlwaysOn team is dealing with connectivity issues to the availability group listener in multi-subnet environments.58KViews0likes2CommentsImproved AlwaysOn Availability Group Lease Timeout Diagnostics
First published on MSDN on Feb 23, 2016 When your AlwaysOn availability group is configured for automatic failover, you may find your availability group failed over, or if configured for manual failover, you may observe your availability group transition from the PRIMARY role to the RESOLVING role, during which users cannot access the availability group databases.21KViews0likes0CommentsTroubleshooting REDO queue build-up (data latency issues) on AlwaysOn Readable Secondary Replicas using the WAIT_INFO Extended Event
First published on MSDN on Jan 06, 2015 PROBLEM You have confirmed excessive build up of REDO queue on an AlwaysOn Availability Group secondary replica by one of the following methods: Querying sys.53KViews1like5Comments