NSX-T Load Balancer stop working.
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NSX-T Load Balancer stop working.


Article ID: 318370


Updated On:


VMware NSX Networking


  • Traffic going through NSX-T Load Balancer stop working.
  • In the NSX-T Edge logs you can see:
<5>1 2020-06-04T07:48:29.299510+00:00 <Edge-TN-Name> kernel - - - [17530602.434999] grsec: From Segmentation fault occurred at 0000000000000008 in /opt/vmware/nsx-edge/bin/nginx[nginx:30892] uid/euid:134/134 gid/egid:140/140, parent /opt/vmware/nsx-edge/bin/nginx[nginx:11821] uid/euid:134/134 gid/egid:140/140
<180>1 2020-06-04T07:48:29.358Z <Edge-TN-Name> NSX 3886 - [nsx@6876 comp="nsx-edge" subcomp="node-mgmt" username="root" level="WARNING"] Core file generated: /var/log/core/core.nginx.1599034158.30892.134.11.gz
<29>1 2020-06-04T07:48:29.842439+00:00 <Edge-TN-Name> NSX 11821 LB [nsx@6876 comp="nsx-edge" subcomp="nsx-edge-lb.lb" level="INFO"] [d38a6943-ffb4-45e1-8cbc-b4438bd78945] signal 17 (SIGCHLD) received from 30892
<25>1 2020-09-02T07:50:30.842782+00:00 <Edge-TN-Name> NSX 11821 LB [nsx@6876 comp="nsx-edge" subcomp="nsx-edge-lb.lb" level="FATAL"] [d38a6943-ffb4-45e1-8cbc-b4438bd78945] worker process 30892 exited on signal 11 (core dumped)
  • One or more Load Balancer Core files are present in the Edge directory: /var/log/core
Note: The preceding log excerpts are only examples. Date, time, and environmental variables may vary depending on your environment


VMware NSX-T Data Center 2.5.x
VMware NSX-T Data Center


This issue is resolved in NSX-T 2.5.2 and 3.0.2

As temporary workaround, put the Edge TN in Maintenance mode to failover the traffic to the non impact Edge in the cluster and reboot the impacted Edge TN.

Additional Information

The NSX-T VIPs hosted by NSX-T Load Balancer will not respond to traffic anymore. Resulting in a service impact.