Tunnels Missing for SDN Device

Products

• CA Virtual Network Assurance
• DX NetOps

Issue/Introduction

Everything appears good with VNA but we are not able to see tunnels on a new device

Environment

All supported releases of VNA < 21.2.1

Cause

There is likely a connectivity issue between Wildfly and MySQL, either currently or recently.  The following exception may be present in the VNA server.log:

2021-06-07 10:55:14,579 WARN  [org.infinispan.persistence.manager.PersistenceManagerImpl] (expiration-thread--p11-t1) IVQN000026: Caught exception purging data container!: org.infinispan.persistence.spi.StoreUnavailableException: Store o[email protected]2f9281e5 is unavailable

 at org.infinispan.persistence.manager.PersistenceManagerImpl.pollStoreAvailability(PersistenceManagerImpl.java:204)
 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
 at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
 at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 at java.lang.Thread.run(Thread.java:748)

Currently, if something causes VNA to lose its connection to MySQL, it will not reconnect without process restarts.  Once 21.2.1 is released, there is a feature within it to have VNA attempt to automatically reconnect which in this case would have alleviated these issues.

Resolution

Restart MySQL and Wildfly

1. systemctl stop wildfly mysql

2. systemctl start mysql

3. systemctl start wildfly

Await for an inventory poll to happen which should update the inventory with the missing items.  If it still does not, you may also need to set the VNA Gateway in the NetOps Portal to admin down then flip it back to admin up.