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Agent logs having Exceptions after upgrading to 4.11.1.0


Hello everyone, 

I have started seeing a number of Exceptions entries similar to the one below: 

2018-07-09 11:28:41,582 INFO [cloud.agent.Agent] (Agent-Handler-2:null) (logid:) Connected to the host: 192.168.169.13 
2018-07-09 11:33:35,631 WARN [cloud.agent.Agent] (agentRequest-Handler-2:null) (logid:3d56b608) Caught: 
java.lang.NumberFormatException: For input string: "iptables" 
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) 
at java.lang.Long.parseLong(Long.java:589) 
at java.lang.Long.parseLong(Long.java:631) 
at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.getNetworkStats(LibvirtComputingResource.java:1926) 
at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtNetworkUsageCommandWrapper.execute(LibvirtNetworkUsageCommandWrapper.java:54) 
at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtNetworkUsageCommandWrapper.execute(LibvirtNetworkUsageCommandWrapper.java:29) 
at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtRequestWrapper.execute(LibvirtRequestWrapper.java:78) 
at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.executeRequest(LibvirtComputingResource.java:1449) 
at com.cloud.agent.Agent.processRequest(Agent.java:644) 
at com.cloud.agent.Agent$AgentRequestHandler.doTask(Agent.java:1082) 
at com.cloud.utils.nio.Task.call(Task.java:83) 
at com.cloud.utils.nio.Task.call(Task.java:29) 
at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
at java.lang.Thread.run(Thread.java:748) 


Not seen those in the agent.log before. The hosts are KVM with Ubuntu 16.04 with the latest updates. Haven't seen those prior to 4.11.1.0 upgrade. 

iptables --version 
iptables v1.6.0 

Cheers 

Andrei