Topology Links are Gone

My fellow OpenNMSers,


I have had my 20.0.2 system running for two weeks and the topology map was
working fine.

Yesterday the map started getting weird, my switches seemed to have lost
their CDP info and only showed L2 bridge links into a cloud icon. This only
got worse and now no nodes have any links showing at all.

"Node Link Detailed View" shows plenty of bridged and CDP connections.

I poked around the logs and didn't see anything terrible until I went into
enlinkd.log:

 WARN [EnhancedLinkd-Thread-5-of-5] o.o.n.e.NodeDiscoveryBridgeTopology:
calculate: node: [20], cannot found simple connection for bridges: [19,20]

 WARN [EnhancedLinkd-Thread-5-of-5] o.o.n.e.NodeDiscoveryBridgeTopology:
simple connection: [15, port null] <--> [22, port null]. Not found. exiting

WARN [EnhancedLinkd-Thread-5-of-5] o.o.n.e.NodeDiscoveryBridgeTopology:
calculate: node: [22]: level 1: bridge [22]. Topology mismatch.
Clearing...topology

Can anyone help troubleshoot and resolve this?

The only addition I have made from a vanilla install is adding the
opennms-plugin-provisioning-snmp-hardware-inventory and that was 5 days ago.

System info is here:

Version: 20.0.2

Server Time: Fri Sep 01 12:46:44 EDT 2017

Client Time: Fri Sep 01 2017 12:46:44 GMT-0400 (Eastern Standard Time)

Java Version: 1.8.0_112 (Oracle Corporation)

Java Runtime: Java(TM) SE Runtime Environment (1.8.0_112-b15)

Java Specification: Java Platform API Specification (Oracle Corporation,
1.8)

Java Virtual Machine: Java HotSpot(TM) 64-Bit Server VM (Oracle
Corporation, 25.112-b15)

Java Virtual Machine Specification: Java Virtual Machine Specification
(Oracle Corporation, 1.8)

Operating System: Linux 3.10.0-514.26.2.el7.x86_64 (amd64)

Servlet Container: jetty/9.4.0.v20161208 (Servlet Spec 3.1)

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:54.0)
Gecko/20100101 Firefox/54.0.1 Waterfox/54.0.1

Database Type: PostgreSQL

Database Version: 9.2.18

Time-Series Strategy: RRDTool or JRobin


and here:

opennms> info

Karaf

  Karaf version               2.4.3

  Karaf home                  /opt/opennms

  Karaf base                  /opt/opennms

  OSGi Framework              org.apache.felix.framework - 4.4.1


JVM

  Java Virtual Machine        Java HotSpot(TM) 64-Bit Server VM version
25.112-b15

  Version                     1.8.0_112

  Vendor                      Oracle Corporation

  Pid                         4406

  Uptime                      5 hours 8 minutes

  Total compile time          5 minutes

Threads

  Live threads                433

  Daemon threads              93

  Peak                        599

  Total started               124475

Memory

  Current heap size           482,184 kbytes

  Maximum heap size           991,744 kbytes

  Committed heap size         991,744 kbytes

  Pending objects             0

  Garbage collector           Name = 'PS Scavenge', Collections = 1157,
Time = 38.134 seconds

  Garbage collector           Name = 'PS MarkSweep', Collections = 25, Time
= 9.770 seconds

Classes

  Current classes loaded      29,700

  Total classes loaded        30,226

  Total classes unloaded      526

Operating system

  Name                        Linux version 3.10.0-514.26.2.el7.x86_64

  Architecture                amd64

  Processors                  8


Any help will be greatly appreciated.

Thanks,
Ken

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