multipath devices failing with error - 'blk_cloned_rq_check_limits: over max size limit.'
Issue
-
Every day
multipathdloses many paths withblk_cloned_rq_check_limitserrors 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.[...]
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We have already configured
4096max_sectors_kbvalue in/etc/multipath.conffile, added a udev rule as well to tune themax_sectors_kbvalue as shown in article 3014361 but still the same issue persists.
Environment
- Red Hat Enterprise Linux 6.9
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