6d85d05f78
If a volume driver takes an excessively long amount of time to return volume stats info, the only indication if this is a generic "Function outlasted interval" message that doesn't really explain what is going on. Introduce a specific log message when this happens so that this situation is more clear for someone looking at cinder-volume logs. The message is set to trigger if the driver takes more than half of the stats polling interval to complete. Change-Id: Id6b27eb7b90c8a8c91fb46de69aa94b8210da18d
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