On 06/18/2014 02:17 AM, Merla, ShivaKrishna wrote:
Sometimes whenever a path is added, scsi_id call during udev rule processing
can fail and ID_SERIAL attribute will not be set. This causes multipathd to add
the path as orphan. We have seen several instances of this happening during
testing.
Jun 17 10:14:43 ictm-vader multipathd[474]: sda: uid_attribute = ID_SERIAL (config file default)
Jun 17 10:14:43 ictm-vader multipathd[474]: sda: no ID_SERIAL attribute
Jun 17 10:14:43 ictm-vader multipathd[474]: sda: uid = <empty> (udev)
Jun 17 10:14:43 ictm-vader multipathd[474]: sda: no ID_SERIAL attribute
Jun 17 10:14:43 ictm-vader multipathd[474]: sda: uid = <empty> (udev)
Jun 17 10:14:43 ictm-vader multipathd[474]: sda: failed to get path uid
Jun 17 10:14:43 ictm-vader multipathd[474]: sda: orphan path, failed to add path
This patch handles this case by allowing to fall back to explict getuid_callout
incase if ID_SERIAL attribute is not set. This way support for deprecated
getuid_callout is not lost for older versions where ID_SERIAL attribute is not
present but also serves good purpose in the scenario mentioned above.
Signed-off-by: Shiva Krishna Merla<shivakrishna.merla@xxxxxxxxxx>
Hmm. I have a similar patch in my tree. Will be checking.
Cheers,
Hannes
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