multipath devices failing with error - 'blk_cloned_rq_check_limits: over max size limit.'
Issue
-
Every day
multipathd
loses many paths withblk_cloned_rq_check_limits
errors as shown below:Jan 11 13:15:09 testhost kernel: blk_cloned_rq_check_limits: over max size limit. Jan 11 13:15:09 testhost kernel: device-mapper: multipath: Failing path 130:0. Jan 11 13:15:09 testhost multipathd: 130:0: mark as failed Jan 11 13:15:09 testhost multipathd: mpathag: remaining active paths: 3 Jan 11 13:15:09 testhost kernel: blk_cloned_rq_check_limits: over max size limit. Jan 11 13:15:09 testhost kernel: device-mapper: multipath: Failing path 129:160. Jan 11 13:15:09 testhost multipathd: 129:160: mark as failed Jan 11 13:15:09 testhost multipathd: mpathy: remaining active paths: 3 Jan 11 13:15:09 testhost kernel: blk_cloned_rq_check_limits: over max size limit.
[...]
-
We have already configured
4096
max_sectors_kb
value in/etc/multipath.conf
file, added a udev rule as well to tune themax_sectors_kb
value as shown in "How to set custom 'max_sectors_kb' option for devices under multipathd control?" but still the same issue persists.
Environment
- Red Hat Enterprise Linux 6.9
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