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When IP_VS schedulers do not find a destination, they output a terse
"WLC: no destination available" message through kernel syslog, which I
can not only make sense of because syslog puts them in a logfile
together with keepalived checker results.
This patch makes the output a bit more informative, by telling you which
virtual service failed to find a destination.
Example output:
kernel: [1539214.552233] IPVS: wlc: TCP 192.168.8.30:22 - no destination
available
kernel: [1539299.674418] IPVS: wlc: FWM 22 0x00000016 - no destination
available
I have tested the code for IPv4 and FWM services, as you can see from
the example; I do not have an IPv6 setup to test the third code path
with.
To avoid code duplication, I put a new function ip_vs_scheduler_err()
into ip_vs_sched.c, and use that from the schedulers instead of calling
IP_VS_ERR_RL directly.
The patch is against 2.6.36.2, as that's what I have running. It still
applies with two hunks shifted to 2.6.38-rc4, and builds there without
warnings.
Please review and consider for inclusion in upcoming kernels.
best regards
Patrick
ip_vs_scheduler_err.patch
Description: Text Data
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