APM is not receiving data from the Probe
Information
| Summary: |
Possible causes of missing data for Application performance monitoring (APM) from the Flowmon Probe. |
| Environment: |
Product: APM Version: Any Platform: Any |
| Question/Problem Description: |
Why there is no data for APM? The green icon for the Probe (APM -> Settings -> Probes) is green, however from Probe statistics is obvious that Probe is not sending any data. |
| Steps to Reproduce: | |
| Error Message: | /data/bf/log/BlueFerret.log WARN SnifferTcpHandler - TCPHandler::ProcessPacket - HalfOpen - 172.30.29.73:1521-172.30.191.57:43498[530809][SV]: HalfOpen|Closed|Open : data from Server but missing SYN from Client WARN SnifferTcpHandler - TCPHandler::ProcessPacket - HalfOpen - 172.30.191.58:59312-172.30.29.72:1521[530815][CL]: HalfOpen|Open|Closed : data from Client but missing SYN from Server |
| Defect Number: | |
| Enhancement Number: | |
| Cause: | Missing SYN packets from client or server. |
| Resolution: |
1. Verify that Flowmon has full visibility of the traffic from application servers. 2. Check the configuration of mirror ports of a VMware Distributed vSwitch (DSwitch). |
| Workaround: | |
| Notes: |
Deployment guide for VMware: https://support.kemptechnologies.com/hc/en-us/sections/4403921029645-Flowmon Choose your version -> Deployment Guide for Virtual Appliances -> Chapter 4.10 |
Was this article helpful?
0 out of 0 found this helpful