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Cisco Bug: CSCuq17062 - Device discovery hangs if delimiter is missing

Last Modified

Sep 17, 2019

Products (1)

  • Cisco Data Center Network Manager

Known Affected Releases

7.1(0.42)

Description (partial)

Symptom:
Some of the discoveries will be in running status for long time. It might lead to high CPU usage as well.

Conditions:
From the thread dumps one can see that DCNM is waiting for the Netconf response. For example:

"CdpThreadPool-8830-x.x.x.x" Id=774 RUNNABLE
                at java.lang.String.lastIndexOf(String.java:1833)
                at java.lang.StringBuffer.lastIndexOf(StringBuffer.java:548)
                at com.cisco.dcbu.dcm.connector.netconf.ssh.SshNetconfSession.checkResponse(SshNetconfSession.java:473)
                at com.cisco.dcbu.dcm.connector.netconf.ssh.SshNetconfSession.send(SshNetconfSession.java:220)
                at com.cisco.dcbu.dcm.connector.netconf.ssh.SshNetconfSession.send(SshNetconfSession.java:195)
                at com.cisco.dcbu.dcm.connector.netconf.NetconfConnectorService.send(NetconfConnectorService.java:178)
                at sun.reflect.GeneratedMethodAccessor765.invoke(Unknown Source)
                at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
...
                
"SyslogPollerThread: 37" Id=307 RUNNABLE
                at java.lang.String.lastIndexOf(String.java:1833)
                at java.lang.StringBuffer.lastIndexOf(StringBuffer.java:548)
                at com.cisco.dcbu.dcm.connector.netconf.ssh.SshNetconfSession.checkResponse(SshNetconfSession.java:473)
                at com.cisco.dcbu.dcm.connector.netconf.ssh.SshNetconfSession.send(SshNetconfSession.java:220)
                at com.cisco.dcbu.dcm.connector.netconf.ssh.SshNetconfSession.send(SshNetconfSession.java:195)
                at com.cisco.dcbu.dcm.connector.netconf.NetconfConnectorService.send(NetconfConnectorService.java:178)
                at sun.reflect.GeneratedMethodAccessor765.invoke(Unknown Source)
                at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
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