Actually I was using a bash script works like semaphore in before/after_vm_start. As a result that a parallel problem occured: four vms read the same number at the same time, so I abandoned this way. Now I just add a random delay period before vm start, not very well.
2013/5/24 Itamar Heim <[email protected]> > On 05/23/2013 04:23 PM, lofyer wrote: > >> Can host hooks be used to implement the following policy to avoid "boot >> storm"? >> >> 1.count and sort VMs awaiting for boot. >> 2.If the count is less than or equal to, for example 5, then boot all >> VMs and exit the script. >> 3.Otherwise, boot and dequeue vm0 to vm4, and minus the count by 5. >> 4.Sleep some time, and go to step 2. >> ______________________________**_________________ >> Users mailing list >> [email protected] >> http://lists.ovirt.org/**mailman/listinfo/users<http://lists.ovirt.org/mailman/listinfo/users> >> > > hooks run one on vm-start one by one. would be a bit tricky to do the > above. > roy - didn't you add some mechanism to throttle boot storms in the engine? >
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