From nobody Fri Mar 17 12:03:53 2023 Return-Path: X-Original-To: nfsv4@ietfa.amsl.com Delivered-To: nfsv4@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A6B48C15153C for ; Fri, 17 Mar 2023 12:03:51 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.096 X-Spam-Level: X-Spam-Status: No, score=-6.096 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=0.999, RCVD_IN_DNSWL_HI=-5, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=desy.de Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tMnW0cWYbUCC for ; Fri, 17 Mar 2023 12:03:47 -0700 (PDT) Received: from smtp-o-3.desy.de (smtp-o-3.desy.de [IPv6:2001:638:700:1038::1:9c]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 592C6C151520 for ; Fri, 17 Mar 2023 12:03:45 -0700 (PDT) Received: from smtp-buf-3.desy.de (smtp-buf-3.desy.de [IPv6:2001:638:700:1038::1:a6]) by smtp-o-3.desy.de (Postfix) with ESMTP id 8B407608A3 for ; Fri, 17 Mar 2023 20:03:41 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp-o-3.desy.de 8B407608A3 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=desy.de; s=default; t=1679079821; bh=ud6TgldvvOdEcpK/6UKPrtjymriJIJbRBsYboifXVi4=; h=Date:From:To:Cc:In-Reply-To:References:Subject:From; b=01yEhz1E6q/VDsajvX6jM2Y1YKXezCG2ejASn0Ntxe/HXMur5qErEIKgLMuH3cecz MSXY2BpTN9DiOOvY1EF7J4caX6GPHljsic+VBArIN1Qomg1wm+5wOiOW3ZtvnS3Ek8 N1bfDjjzSb47KKNGtIL7rVntYFBFqs31SSqUO70U= Received: from smtp-m-3.desy.de (smtp-m-3.desy.de [131.169.56.131]) by smtp-buf-3.desy.de (Postfix) with ESMTP id 83823A00B3; Fri, 17 Mar 2023 20:03:41 +0100 (CET) Received: from smtp-intra-3.desy.de (smtp-intra-3.desy.de [131.169.56.69]) by smtp-m-3.desy.de (Postfix) with ESMTP id 803E160058; Fri, 17 Mar 2023 20:03:41 +0100 (CET) Received: from z-mbx-2.desy.de (z-mbx-2.desy.de [131.169.55.140]) by smtp-intra-3.desy.de (Postfix) with ESMTP id 6DDBB80067; Fri, 17 Mar 2023 20:03:41 +0100 (CET) Date: Fri, 17 Mar 2023 20:03:41 +0100 (CET) From: "Mkrtchyan, Tigran" To: Thomas Haynes Cc: NFSv4 Message-ID: <1681714268.9413960.1679079821291.JavaMail.zimbra@desy.de> In-Reply-To: <593CEF2C-EE09-4CB7-86F3-E84F3C7E35B4@hammerspace.com> References: <167690801491.19966.10073497475444708402@ietfa.amsl.com> <593CEF2C-EE09-4CB7-86F3-E84F3C7E35B4@hammerspace.com> MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="----=_Part_9413961_1242574386.1679079821392" X-Mailer: Zimbra 9.0.0_GA_4509 (ZimbraWebClient - FF110 (Linux)/9.0.0_GA_4509) Thread-Topic: New Version Notification for draft-haynes-nfsv4-layoutwcc-01.txt Thread-Index: AQHZRUKRJOPrjieQWUCEjmhk1eP+ldNTJCbS Archived-At: Subject: Re: [nfsv4] Fwd: New Version Notification for draft-haynes-nfsv4-layoutwcc-01.txt X-BeenThere: nfsv4@ietf.org X-Mailman-Version: 2.1.39 Precedence: list List-Id: NFSv4 Working Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Mar 2023 19:03:51 -0000 ------=_Part_9413961_1242574386.1679079821392 Date: Fri, 17 Mar 2023 20:03:41 +0100 (CET) From: "Mkrtchyan, Tigran" To: Thomas Haynes Cc: NFSv4 Message-ID: <1681714268.9413960.1679079821291.JavaMail.zimbra@desy.de> In-Reply-To: <593CEF2C-EE09-4CB7-86F3-E84F3C7E35B4@hammerspace.com> References: <167690801491.19966.10073497475444708402@ietfa.amsl.com> <593CEF2C-EE09-4CB7-86F3-E84F3C7E35B4@hammerspace.com> Subject: Re: [nfsv4] Fwd: New Version Notification for draft-haynes-nfsv4-layoutwcc-01.txt MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="=_821360fb-ac3b-487e-be95-87ce4bb435ae" X-Mailer: Zimbra 9.0.0_GA_4509 (ZimbraWebClient - FF110 (Linux)/9.0.0_GA_4509) Thread-Topic: New Version Notification for draft-haynes-nfsv4-layoutwcc-01.txt Thread-Index: AQHZRUKRJOPrjieQWUCEjmhk1eP+ldNTJCbS --=_821360fb-ac3b-487e-be95-87ce4bb435ae Content-Type: multipart/related; boundary="=_f4fd7007-eb32-4c35-8379-d330d5ec96e3" --=_f4fd7007-eb32-4c35-8379-d330d5ec96e3 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Hi Tom, Thanks for the update. I have two comments: 1. The introductions talk mostly about nfsv3-based flexfile layout. However, even strongly coupled v4-based implementations will benefit from such functionality, as attribute synchronization can be delegated to the client (fsync vs fdatasync). 2. the paragraph: """ Each NFSv3 operation corresponds to one round trip between the client and server. So a WRITE followed by a GETATTR would require two round trips. In that scenario, the attribute information retrieved is considered to be strict server-client consistency. For NFSv4, the WRITE and GETATTR can be issued together inside a compound, which only requires one round trip between the client and server. And this is also considered to be a strict server-client consistency. In essence, the NFSv4 READ and WRITE operations drop the post-operation attributes, allowing the client to decide if it needs that information. """ Is still wrong for nfsv4, as on the data path we can't have READ/WRITE + GETATTR. I am not saying that we should change the pnfs protocol, but the text might say that LAYOUT_WCC gives an opportunity for nfsv3 (and might be for later implementations) to make use of it. Best regards, Tigran. ----- Original Message ----- > From: "Thomas Haynes" > To: "NFSv4" > Sent: Monday, 20 February, 2023 16:48:45 > Subject: [nfsv4] Fwd: New Version Notification for draft-haynes-nfsv4-layoutwcc-01.txt > This version addresses the issue that the draft is NFSv3 Flex Files only. > > Thanks, > Tom > > Begin forwarded message: > > From: internet-drafts@ietf.org > Subject: New Version Notification for draft-haynes-nfsv4-layoutwcc-01.txt > Date: February 20, 2023 at 7:46:54 AM PST > To: "Thomas Haynes" , "Trond Myklebust" > > > > A new version of I-D, draft-haynes-nfsv4-layoutwcc-01.txt > has been successfully submitted by Thomas Haynes and posted to the > IETF repository. > > Name: draft-haynes-nfsv4-layoutwcc > Revision: 01 > Title: Add LAYOUT_WCC to NFSv4.2 > Document date: 2023-02-20 > Group: Individual Submission > Pages: 9 > URL: > https://www.ietf.org/archive/id/draft-haynes-nfsv4-layoutwcc-01.txt > Status: https://datatracker.ietf.org/doc/draft-haynes-nfsv4-layoutwcc/ > Html: > https://www.ietf.org/archive/id/draft-haynes-nfsv4-layoutwcc-01.html > Htmlized: > https://datatracker.ietf.org/doc/html/draft-haynes-nfsv4-layoutwcc > Diff: > https://author-tools.ietf.org/iddiff?url2=draft-haynes-nfsv4-layoutwcc-01 > > Abstract: > The Parallel Network File System (pNFS) Flexible File Layout allows > for a file's metadata (MDS) and data (DS) to be on different servers. > It does not provide a mechanism for the data server to update the > metadata server of changes to the data part of the file. The client > has knowledge of such updates, but lacks the ability to update the > metadata server. This document presents a refinement to RFC8434 to > allow the client to update the metadata server to changes on the data > server. > > > > > The IETF Secretariat > > > > > _______________________________________________ > nfsv4 mailing list > nfsv4@ietf.org > https://www.ietf.org/mailman/listinfo/nfsv4 --=_f4fd7007-eb32-4c35-8379-d330d5ec96e3-- --=_821360fb-ac3b-487e-be95-87ce4bb435ae-- ------=_Part_9413961_1242574386.1679079821392 Content-Type: application/pkcs7-signature; name=smime.p7s; smime-type=signed-data Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCAMIIF vzCCBKegAwIBAgIMJENPm+MXSsxZAQzUMA0GCSqGSIb3DQEBCwUAMIGNMQswCQYDVQQGEwJERTFF MEMGA1UECgw8VmVyZWluIHp1ciBGb2VyZGVydW5nIGVpbmVzIERldXRzY2hlbiBGb3JzY2h1bmdz bmV0emVzIGUuIFYuMRAwDgYDVQQLDAdERk4tUEtJMSUwIwYDVQQDDBxERk4tVmVyZWluIEdsb2Jh bCBJc3N1aW5nIENBMB4XDTIxMDIxMDEyMzEwOVoXDTI0MDIxMDEyMzEwOVowWDELMAkGA1UEBhMC REUxLjAsBgNVBAoMJURldXRzY2hlcyBFbGVrdHJvbmVuLVN5bmNocm90cm9uIERFU1kxGTAXBgNV BAMMEFRpZ3JhbiBNa3J0Y2h5YW4wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQClVKHU er1OiIaoo2MFDgCSzcqRCB8qVjjLJyJwzHWkhKniE6dwY8xHciG0HZFpSQqiRsoakD+BzqINXsqI CkVck5n7cUJ6cHBOM1r4pzEBcuuozPrT2tAfnHkFFGTZffOXgjmEITfSh6SD+DYeZH4Dt8kPZmnD mzWMDFDyB67WWcWApVC1nPh29yGgJk18UZ+Ut9a+woaovMZlutMbuvLVt/x5rpycMw0z+J1qeK7J 8F3bKb0o2gg+Mnz9LzpLtJp7E9qJUKOTkZGDua9w9xrlo4XGX9Vn72K5wodu6woahdgNG+sXRcJM RH3aWgfdznoi1ORLJCfTbdfjSBpclvt/AgMBAAGjggJRMIICTTA+BgNVHSAENzA1MA8GDSsGAQQB ga0hgiwBAQQwEAYOKwYBBAGBrSGCLAEBBAgwEAYOKwYBBAGBrSGCLAIBBAgwCQYDVR0TBAIwADAO BgNVHQ8BAf8EBAMCBeAwHQYDVR0lBBYwFAYIKwYBBQUHAwIGCCsGAQUFBwMEMB0GA1UdDgQWBBQG 1+t/IHSjHSbbu11uU5Iw7JW92zAfBgNVHSMEGDAWgBRrOpiL+fJTidrgrbIyHgkf6Ko7dDAjBgNV HREEHDAagRh0aWdyYW4ubWtydGNoeWFuQGRlc3kuZGUwgY0GA1UdHwSBhTCBgjA/oD2gO4Y5aHR0 cDovL2NkcDEucGNhLmRmbi5kZS9kZm4tY2EtZ2xvYmFsLWcyL3B1Yi9jcmwvY2FjcmwuY3JsMD+g PaA7hjlodHRwOi8vY2RwMi5wY2EuZGZuLmRlL2Rmbi1jYS1nbG9iYWwtZzIvcHViL2NybC9jYWNy bC5jcmwwgdsGCCsGAQUFBwEBBIHOMIHLMDMGCCsGAQUFBzABhidodHRwOi8vb2NzcC5wY2EuZGZu LmRlL09DU1AtU2VydmVyL09DU1AwSQYIKwYBBQUHMAKGPWh0dHA6Ly9jZHAxLnBjYS5kZm4uZGUv ZGZuLWNhLWdsb2JhbC1nMi9wdWIvY2FjZXJ0L2NhY2VydC5jcnQwSQYIKwYBBQUHMAKGPWh0dHA6 Ly9jZHAyLnBjYS5kZm4uZGUvZGZuLWNhLWdsb2JhbC1nMi9wdWIvY2FjZXJ0L2NhY2VydC5jcnQw DQYJKoZIhvcNAQELBQADggEBADaFbcKsjBPbw6aRf5vxlJdehkafMy4JIdduMEGB+IjpBRZGmu0Z R2FRWNyq0lNRz03holZ8Rew0Ldx58REJmvAEzbwox4LT1wG8gRLEehyasSROajZBFrIHadDja0y4 1JrfqP2umZFE2XWap8pDFpQk4sZOXW1mEamLzFtlgXtCfalmYmbnrq5DnSVKX8LOt5BZvDWin3r4 m5v313d5/l0Qz2IrN6v7qNIyqT4peW90DUJHB1MGN60W2qe+VimWIuLJkQXMOpaUQJUlhkHOnhw8 82g+jWG6kpKBMzIQMMGP0urFlPAia2Iuu2VtCkT7Wr43xyhiVzkZcT6uzR23PLsAADGCApswggKX AgEBMIGeMIGNMQswCQYDVQQGEwJERTFFMEMGA1UECgw8VmVyZWluIHp1ciBGb2VyZGVydW5nIGVp bmVzIERldXRzY2hlbiBGb3JzY2h1bmdzbmV0emVzIGUuIFYuMRAwDgYDVQQLDAdERk4tUEtJMSUw IwYDVQQDDBxERk4tVmVyZWluIEdsb2JhbCBJc3N1aW5nIENBAgwkQ0+b4xdKzFkBDNQwDQYJYIZI AWUDBAIBBQCggc4wGAYJKoZIhvcNAQkDMQsGCSqGSIb3DQEHATAcBgkqhkiG9w0BCQUxDxcNMjMw MzE3MTkwMzQxWjAtBgkqhkiG9w0BCTQxIDAeMA0GCWCGSAFlAwQCAQUAoQ0GCSqGSIb3DQEBCwUA MC8GCSqGSIb3DQEJBDEiBCBL2XaYDdH+DCcnep7lBhqUhbam9gXYByB7oWi93sMr/TA0BgkqhkiG 9w0BCQ8xJzAlMAoGCCqGSIb3DQMHMA4GCCqGSIb3DQMCAgIAgDAHBgUrDgMCBzANBgkqhkiG9w0B AQsFAASCAQCSNx+LkDxovfH2ChHW4EtaNa/8ggBewEsBJNSfjUkGwnpFb/M7w57YF6h6+allZp/S KbJaMEKuujdgwKhqrayCQlAgmbRdG3utH18GeVDLuJVMNiVMZfFMLutXRTI8YrzGQvlwcDlC6XDJ NrLNQsK0s6kNt1GxUeWZRgflW62h4Nm3Ck49Pg14D/kZmrPKVEk7Wb7crqtr9rkZNr0qNTW30ExS +71DWPmak0CYzRlmyr/FWxiRCAUfxbA27TEoG/3MseNACgTCZ1fuyzxIz4HDxGbYXLZy24qdcAOi juEi43sagfBLitaPBGjGbNp2vI5xuYMhnCqRzWefklj2HLTbAAAAAAAA ------=_Part_9413961_1242574386.1679079821392--