Add wait loop for multipath devices to appear #67140
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It takes a variable amount of time for the multipath daemon to create /dev/dm-XX in response to new LUNs being discovered. The old iscsi_util code only discovered the multipath device if it was created quickly enough, but in a significant number of cases, kubelet would grab one of the individual paths and put a filesystem it on before multipathd could construct a multipath device. This change waits for the multipath device to get created for up to 10 seconds, but only if the PV actually had more than one portal.
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: bswartz, jsafrane The full list of commands accepted by this bot can be found here. The pull request process is described here
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Automatic merge from submit-queue (batch tested with PRs 67017, 67190, 67110, 67140, 66873). If you want to cherry-pick this change to another branch, please follow the instructions here. |
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It takes a variable amount of time for the multipath daemon
to create /dev/dm-XX in response to new LUNs being discovered.
The old iscsi_util code only discovered the multipath device
if it was created quickly enough, but in a significant number
of cases, kubelet would grab one of the individual paths and
put a filesystem it on before multipathd could construct a
multipath device.
This change waits for the multipath device to get created for
up to 10 seconds, but only if the PV actually had more than
one portal.
fixes #60894