Date: Tue, 19 Jun 2018 11:11:08 +0000 From: Rick Macklem <rmacklem@uoguelph.ca> To: Steve Wills <swills@FreeBSD.org>, "freebsd-current@freebsd.org" <freebsd-current@freebsd.org> Cc: "andreas.nagy@frequentis.com" <andreas.nagy@frequentis.com> Subject: Re: ESXi NFSv4.1 client id is nasty Message-ID: <YTOPR0101MB095381400B6BE6DF1E9604BDDD700@YTOPR0101MB0953.CANPRD01.PROD.OUTLOOK.COM> In-Reply-To: <8ceea008-f827-580b-8ca6-4a5fcb028e83@FreeBSD.org> References: <YTOPR0101MB0953E687D013E2E97873061ADD720@YTOPR0101MB0953.CANPRD01.PROD.OUTLOOK.COM> <d5f86680-6bd3-8513-b293-3fbab5b1277b@FreeBSD.org> <YTOPR0101MB0953070582B97A0B62B7A4FFDD710@YTOPR0101MB0953.CANPRD01.PROD.OUTLOOK.COM>, <8ceea008-f827-580b-8ca6-4a5fcb028e83@FreeBSD.org>
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Steve Wills wrote: On 06/18/18 17:42, Rick Macklem wrote: >> Steve Wills wrote: >>> Would it be possible or reasonable to use the client ID to log a messag= e >>> telling the admin to enable a sysctl to enable the hacks? >> Yes. However, this client implementation id is only seen by the server >> when the client makes a mount attempt. >> >> I suppose it could log the message and fail the mount, if the "hack" sys= ctl isn't >> set? > >I hadn't thought of failing the mount, just defaulting not enabling the >hacks unless the admin chooses to enable them. But at the same time >being proactive about telling the admin to enable them. > >I.E. keep the implementation RFC compliant since we wouldn't be changing >the behavior based on the implementation ID, only based upon the admin >setting the sysctl, which we told them to do based on the implementation I= D. Well, without one of the hacks (as head currently is) the mounts always fai= l, so ESXi mounts failing is a feature of the "unhacked" server. (The ReclaimComplete failure fails the mount.) >Just an idea, maybe Warner's suggestion is a better one. Yes, I think Warner has the right idea, although logging a message w.r.t. t= he ReclaimComplete failure (which fails these mounts) when the hacks are turne= d off sounds like a good one to me. >Steve rick
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