Threshold Profiles in CA Performance Management not generating any events

Products

• Network Observability
• CA Performance Management

Issue/Introduction

Threshold profiles have been created for bandwidth utilization and groups have been associated  however, when there is a threshold breach there is no event or alert getting created.

Environment

DX NetOps CAPM all currently supported releases

Cause

Network issues preventing communications on all necessary ports between the Data Aggregator (DA) and Portal. When checking in the DA karaf.log, the following error is continuously being generated:

WARN  | EventPush        | 2025-12-10T12:11:02,682 | PhaseInterceptorChain | ache.cxf.common.logging.LogUtils  465 | org.apache.cxf.cxf-core |       | Interceptor for {http://netqos.com/nqevents/EventManager}IEventManagerWSService#{http://netqos.com/nqevents/EventManager}Push has thrown exception, unwinding now org.apache.cxf.interceptor.Fault: Could not send Message.

        at org.apache.cxf.transport.http.HttpClientHTTPConduit$HttpClientWrappedOutputStream.isConnectionAttemptCompleted(HttpClientHTTPConduit.java:770) ~[bundleFile:3.6.4]

        at org.apache.cxf.transport.http.HttpClientHTTPConduit$HttpClientPipedOutputStream.canWrite(HttpClientHTTPConduit.java:530) ~[bundleFile:3.6.4]

        at org.apache.cxf.transport.http.HttpClientHTTPConduit$HttpClientPipedOutputStream.write(HttpClientHTTPConduit.java:540) ~[bundleFile:3.6.4]

        at org.apache.cxf.io.AbstractWrappedOutputStream.write(AbstractWrappedOutputStream.java:51) ~[bundleFile:3.6.4]

        at org.apache.cxf.io.AbstractThresholdOutputStream.unBuffer(AbstractThresholdOutputStream.java:89) ~[bundleFile:3.6.4]

        at org.apache.cxf.io.AbstractThresholdOutputStream.write(AbstractThresholdOutputStream.java:63) ~[bundleFile:3.6.4]
...
...

        at java.lang.Thread.run(Unknown Source) [?:?]

Caused by: java.net.ConnectException

        at jdk.internal.net.http.common.Utils.toConnectException(Unknown Source) ~[?:?]
...
...

        ... 1 more

Caused by: java.nio.channels.UnresolvedAddressException

 

The java.nio.channels.UnresolvedAddressException is an unchecked Java exception that is thrown when an application attempts a network operation using a socket address that cannot be resolved to a valid IP address. 

 

The above shows that the DA cannot reach the Event Manager service on Portal, so no events are sent when Threshold Profiles violation criteria are breached.

Resolution

Check the connectivity between DA & Portal and that the Event Manager port (and all other ports) are open to the DA in any Firewall: HTTP 8281/HTTPS 8282

As per:

TechDocs : DX NetOps 25.4 : DX NetOps Performance Management Connectivity

Check DNS can correctly resolve the hostnames from DA -> Portal and back, DA <- Portal (for example, using ping or nslookup)

Update /etc/hosts with IP address/hostnames if necessary on both DA & Portal to ensure their respective hostnames resolve correctly.