[Question] IPaddr2 DOWN/LOWERLAYERDOWN error detection function.

[HideoYamauchi]

Hi Oyvind,
Hi All,

The following modification to IPaddr2 added a DOWN/LOWERLAYERDOWN error detection function, but when this error is detected by the monitor, it is treated as ERR_INSTALLED.

• 4a228f3

For this reason, even if the user is controlling the failure migration-threshold (0, number, INFINITY), if the monitor error is controlled by ERR_INSTALLED, an FO will occur immediately.

Some users may want to ignore the monitor failure for the IPaddr2 resource (by setting the migration-threshold to 0) and prevent the resource from FO.

Rather than ERR_INSTALLED, shouldn't NOT_RUNNING be returned and the fail-count control be left to Pacemaker's migration-thresholds (0, number, INFINITY)?

(snip)
ip_monitor() {
        # TODO: Implement more elaborate monitoring like checking for
        # interface health maybe via a daemon like FailSafe etc...
        local ip_status=`ip_served`
        ocf_log debug "monitor:  $ip_status"
        case $ip_status in
        ok)
                run_arp_sender refresh
                return $OCF_SUCCESS
                ;;
        no|down)  # or DOWN
                exit $OCF_NOT_RUNNING
                ;;
(snip)

Best Regards,
Hideo Yamauchi.