[ClusterLabs] Bug pacemaker with multiple IP

[Thomas CAS]

Hello Clusterlabs,

I would like to report a bug on Pacemaker with the "IPaddr2" resource:

OS: Debian 10
Kernel: Linux wd-websqlng01 4.19.0-18-amd64 #1 SMP Debian 4.19.208-1 (2021-09-29) x86_64 GNU/Linux
Pacemaker version: 2.0.1-5+deb10u2

You will find the configuration of our cluster with 2 nodes attached.

Bug :

We have several IP configured in the cluster configuration (12)
Sometimes the cluster is unstable with the following errors in the pacemaker logs:

Dec 18 21:07:51 **SENSITIVEDATA** pacemaker-execd     [5079] (operation_finished)   notice: NGINX-VIP-232_monitor_10000:28835:stderr [ /usr/lib/ocf/resource.d/heartbeat/IPaddr2: 1: /usr/lib/ocf/resource.d/heartbeat/IPaddr2: ip: Text file busy ]
Dec 18 21:07:51 **SENSITIVEDATA** pacemaker-execd     [5079] (operation_finished)   notice: NGINX-VIP-239_monitor_10000:28877:stderr [ /usr/lib/ocf/resource.d/heartbeat/IPaddr2: 709: /usr/lib/ocf/resource.d/heartbeat/IPaddr2: ip: Text file busy ]
Dec 18 21:07:51 **SENSITIVEDATA** pacemaker-execd     [5079] (operation_finished)   notice: NGINX-VIP-239_monitor_10000:28877:stderr [ /usr/lib/ocf/resource.d/heartbeat/IPaddr2: 1: /usr/lib/ocf/resource.d/heartbeat/IPaddr2: ip: Text file busy ]
Dec 18 21:07:51 **SENSITIVEDATA** pacemaker-execd     [5079] (operation_finished)   notice: NGINX-VIP-234_monitor_10000:28830:stderr [ /usr/lib/ocf/resource.d/heartbeat/IPaddr2: 1: /usr/lib/ocf/resource.d/heartbeat/IPaddr2: ip: Text file busy ]
Dec 18 21:07:51 **SENSITIVEDATA** pacemaker-execd     [5079] (operation_finished)   notice: NGINX-VIP-231_monitor_10000:28900:stderr [ /usr/lib/ocf/resource.d/heartbeat/IPaddr2: 709: /usr/lib/ocf/resource.d/heartbeat/IPaddr2: ip: Text file busy ]
Dec 18 21:07:51 **SENSITIVEDATA** pacemaker-execd     [5079] (operation_finished)   notice: NGINX-VIP-231_monitor_10000:28900:stderr [ /usr/lib/ocf/resource.d/heartbeat/IPaddr2: 1: /usr/lib/ocf/resource.d/heartbeat/IPaddr2: ip: Text file busy ]
Dec 18 21:07:51 **SENSITIVEDATA** pacemaker-execd     [5079] (operation_finished)   notice: NGINX-VIP-235_monitor_10000:28905:stderr [ /usr/lib/ocf/resource.d/heartbeat/IPaddr2: 709: /usr/lib/ocf/resource.d/heartbeat/IPaddr2: ip: Text file busy ]
Dec 18 21:07:51 **SENSITIVEDATA** pacemaker-execd     [5079] (operation_finished)   notice: NGINX-VIP-235_monitor_10000:28905:stderr [ /usr/lib/ocf/resource.d/heartbeat/IPaddr2: 1: /usr/lib/ocf/resource.d/heartbeat/IPaddr2: ip: Text file busy ]
Dec 18 21:07:51 **SENSITIVEDATA** pacemaker-execd     [5079] (operation_finished)   notice: NGINX-VIP-237_monitor_10000:28890:stderr [ /usr/lib/ocf/resource.d/heartbeat/IPaddr2: 709: /usr/lib/ocf/resource.d/heartbeat/IPaddr2: ip: Text file busy ]
Dec 18 21:07:51 **SENSITIVEDATA** pacemaker-execd     [5079] (operation_finished)   notice: NGINX-VIP-237_monitor_10000:28890:stderr [ /usr/lib/ocf/resource.d/heartbeat/IPaddr2: 1: /usr/lib/ocf/resource.d/heartbeat/IPaddr2: ip: Text file busy ]
Dec 18 21:07:51 **SENSITIVEDATA** pacemaker-execd     [5079] (operation_finished)   notice: NGINX-VIP-238_monitor_10000:28876:stderr [ /usr/lib/ocf/resource.d/heartbeat/IPaddr2: 709: /usr/lib/ocf/resource.d/heartbeat/IPaddr2: ip: Text file busy ]
Dec 18 21:07:51 **SENSITIVEDATA** pacemaker-execd     [5079] (operation_finished)   notice: NGINX-VIP-238_monitor_10000:28876:stderr [ /usr/lib/ocf/resource.d/heartbeat/IPaddr2: 1: /usr/lib/ocf/resource.d/heartbeat/IPaddr2: ip: Text file busy ]
Dec 18 21:07:51 **SENSITIVEDATA** pacemaker-execd     [5079] (operation_finished)   notice: NGINX-VIP_monitor_10000:28880:stderr [ /usr/lib/ocf/resource.d/heartbeat/IPaddr2: 709: /usr/lib/ocf/resource.d/heartbeat/IPaddr2: ip: Text file busy ]
Dec 18 21:07:51 **SENSITIVEDATA** pacemaker-execd     [5079] (operation_finished)   notice: NGINX-VIP_monitor_10000:28880:stderr [ /usr/lib/ocf/resource.d/heartbeat/IPaddr2: 1: /usr/lib/ocf/resource.d/heartbeat/IPaddr2: ip: Text file busy ]

The reason is that there are a lot of IPs configured and if the monitors take place at the same time it causes this type of error.

Best regards,

Thomas Cas  |  Technicien du support infogérance
PHONE : +33 3 51 25 23 26       WEB : www.ikoula.com/en<https://www.ikoula.com/en>
IKOULA Data Center 34 rue Pont Assy - 51100 Reims - FRANCE
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