Queue for probeDiscovery keeps getting backlogged and will never drain

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

 

Looking at the discovery_server log we are seeing many of the following entries:

01 Feb 2022 09:36:44,630 [robotWorker-4] ERROR com.nimsoft.discovery.server.nimbus.scan.RobotUpdater - Cannot process incomplete robot data:com.nimsoft.discovery.common.nimbus.scan.RobotInfoWithInterfaces@19ce4329[robotId=0,deviceId=DA#EDC####EF###D90AC9046F0AAAA2A,address=/THIS_domain/THE_PRIMARY/robot,origin=,robotIp=##.###.##.##,hubIp=##.###.###.###,osMajor=Windows,osMinor=Windows Server 2016 Standard, 64-bit,osDescription=Service Pack 0 Build 14393,osVersion=10.0.14393,flags=1,license=1,offline=0,robotPort=48000,sslMode=0,status=0,userTag1=,userTag2=,version=9.30 [Build 9.30.1264, Mar 10 2020]] 

Environment

Release : 20.3

Component : UIM - DISCOVERY_SERVER

Resolution

All robots that are displaying the above error are not running correctly and they are causing the discovery server to be bogged down. After fixing these robots, via removing all items in their ..nimsoft/niscache directory, and restarting, the discovery_server was able to process them correctly, and able to keep up with the incoming data in the probediscovery queue.