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The port of vlb fails to communicate with the WI and the vlb service is abnormal

Latest reply: Dec 18, 2021 21:52:02 1280 4 2 0 0

[Fault Type]: The VLB server failed to start.

Key words: abnormal VLB

[Applicable Version]: FusionCloud Solution V100R005/ FusionCloud Solution V100R006

[Problem phenomenon]:

The VLB service is abnormal and the server's vag status is normal. The service status is quickly checked after executing service HAProxy start and the service status is stopped.

[Alarm Info]: None

【problem analysis】:

Check the memory and CPU of the vlb server and meet the specifications. And there is no merger deployment with the WI server.
Check the vlb run log. The log path is in the /var/log/haproxy directory. The discovery log shows that the wi status is down.
Vlb startup mechanism: The vlb service detects the state of the wi when it starts. If all the configured wi states are abnormal, vlb will stop its own service.
Check the location of vlb normal, configuration file path /opt/HAProxy/conf
Visiting the wi page alone is normal.
Knowing that there is a firewall between vlb and wi, it is suspected that port 443 of the WI is not open. However, the customer said it has been released.
Shut down a VLB server, add a NIC with the same port group on the ITA server as the vlb service network card, and configure it as the IP address of vlb. Disable other ita cards. Then, the 443 port of the telnet Wi server on the ITA server cannot be found.
6, At this point, the cause of the problem is determined, allowing the customer to check and reconfigure the firewall.


Reconfigure the firewall.

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Created May 30, 2018 01:39:00

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MVE Created Jun 10, 2018 05:50:01

Very informative and useful, thanks
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Admin Created Dec 17, 2019 02:21:28

Thanks for your share!
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Created Dec 18, 2021 21:52:02

Feasible solution discretion
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