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On Fri, Aug 07, 2015 at 12:10:56PM -0400, Ian Stakenvicius wrote: |
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> -----BEGIN PGP SIGNED MESSAGE----- |
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> Hash: SHA256 |
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> |
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> On 07/08/15 11:30 AM, William Hubbs wrote: |
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> > On Thu, Aug 06, 2015 at 08:07:44PM -0400, Ian Stakenvicius wrote: |
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> >> |
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> >> Can we get "nofail" immediately in the mount -a variants of |
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> >> localmount/netmount and expand that in netmount to make the |
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> >> nfsclient dep be a "use" or a "need" depending on if it's set or |
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> >> not?? That would imo kill the existing bug that started all of |
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> >> this too. |
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> > |
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> > Sure, I can get the nofail support in pretty quick, and I think |
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> > that is a feature we should have. |
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> > |
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> > Right now, netmount is using the use dependency to make sure |
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> > network file system utilities are started before us. Because of |
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> > the all-or-nothing nature of netmount, we can't switch those |
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> > dependencies to need. It would cause netmount to fail if one of |
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> > those utilities fails to start. The use dependency is the best one |
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> > we can use at this time, and a migration path was specifically laid |
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> > out in the news item. |
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> > |
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> |
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> My thinking here is that, unless network mounts in fstab are listed as |
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> 'nofail', that netmount failing due to the dependent services not |
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> being able to start would be a valid case. Sysadmins that don't want |
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> netmount to fail no matter what would be able to use 'nofail' to |
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> ensure that happens. |
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> |
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> This is of course predicated on (1) it being a good idea, and (2) |
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> fstabinfo or whatever the check currently is that would add nfsclient |
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> to depend() could easily swap 'use' for 'need' based on the (lack of) |
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> existence of the nofail attribute in fstab. |
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|
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The issue with using the need dependency is that netmount is not |
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granular enough. It mounts all types of network file systems, so if we |
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fail because nfs is a need dependency and doesn't start, no other types |
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of network file systems that use daemons will be mounted. That's what I |
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meant by all-or-nothing. |
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|
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William |
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