Date: Mon, 8 Dec 2014 15:38:29 +0100 From: Mark Schouten <mark@tuxis.nl> To: freebsd-fs@freebsd.org Subject: Mountd, why not use the '-S' flag by default Message-ID: <710130010-1872@kerio.tuxis.nl>
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[-- Attachment #1 --] Hi, I'm using a FreeBSD nfs-server as storage for my Linux KVM-based VPS-platform. The images reside on the NFS-server. I'm been noticing errors in my VPS disks when running 'zfs set sharenfs=XYZ', probably because of reloads of mountd. While trying to debug that, I ran acros this message in mountd(8): -S Tell mountd to suspend/resume execution of the nfsd threads when- ever the exports list is being reloaded. This avoids intermit- tent access errors for clients that do NFS RPCs while the exports are being reloaded, but introduces a delay in RPC response while the reload is in progress. If mountd crashes while an exports load is in progress, mountd must be restarted to get the nfsd threads running again, if this option is used. I can't think of a reason why you wouldn't want to use -S by default.. An '/etc/rc.d/mountd reload' without it causes even my running Bonnie on a normal NFS-share (not via a diskimage) to stop with 'input/output error'. Can someone enlighten me with the drawbacks of using -S ? Met vriendelijke groeten, -- Kerio Operator in de Cloud? https://www.kerioindecloud.nl/ Mark Schouten | Tuxis Internet Engineering KvK: 61527076 | http://www.tuxis.nl/ T: 0318 200208 | info@tuxis.nl [-- Attachment #2 --] 0 *H 01 0 + 0 *H 00,]~!dn=0 *H 01 0 UGB10UGreater Manchester10USalford10U COMODO CA Limited1907U0COMODO Client Authentication and Secure Email CA0 140701000000Z 150701235959Z0 1 0 *H mark@tuxis.nl0"0 *H 0 ,e1`4jEtuBeE")>ԁY 7ՀI&]KͨqkRnZÚC$jw4[ߞ? f)Sm6,M%#R 2U\?blOZǣۍq }(/nKNoovtڪmrw4Ԣ -H2R 0!0PnB_n?uW+RoqCڇvx|1B/ Lan / )` 00 U #0zN t[xcd'/[y{0 U ~tDeHO3 1M]0U 0 U 0 0 U %0+ +10 `HB 0FU ?0=0; +10+0)+ https://secure.comodo.net/CPS0WU P0N0LJHFhttp://crl.comodoca.com/COMODOClientAuthenticationandSecureEmailCA.crl0+|0z0R+0Fhttp://crt.comodoca.com/COMODOClientAuthenticationandSecureEmailCA.crt0$+0http://ocsp.comodoca.com0U 0 mark@tuxis.nl0 *H |0D7 -Ѐ1Ν {(pSiW;@Fλ2I)l`ϥ#<v.|Y;oa95z.dJ5 _[/>1I/ QSby@o@=T<cW4$?^KXkO=Uw NCdFC ӡLWk?@\˯K OdAWL{yC0zb%|{&1ӷ >g ʋlg !&600mOj3""2zq0 *H 01 0 UUS1 0 UUT10USalt Lake City1 0 U The USERTRUST Network1!0 U http://www.usertrust.com1604U-UTN-USERFirst-Client Authentication and Email0 110428000000Z 200530104838Z01 0 UGB10UGreater Manchester10USalford10U COMODO CA Limited1907U0COMODO Client Authentication and Secure Email CA0"0 *H 0 [KW^/@ȣSX_fe2N2}UxLUB'qi2@'Vbqi c^`ʢAj HmeC*.+c8w߱ڂ2jgo \5Tq 7 PSl Y1 LR@[HhJ$ :q_㬿;%qh=XF<hmz!W42~JRrd&N`ohQcB}"cөΞD\[5 K0G0 U #0g}ĝ&p KPH|=n}0 U zN t[xcd'/[y{0U 0U 0 0U 00U 0XU Q0O0MKIGhttp://crl.usertrust.com/UTN-USERFirst-ClientAuthenticationandEmail.crl0t+h0f0=+01http://crt.usertrust.com/UTNAddTrustClient_CA.crt0%+0http://ocsp.usertrust.com0 *H ־xWUm3DRB JAIZҭsn>&|L0(B<%> u=9fѡMo(l tZڱuz/y VtCr`9 G:eH<=%`I?C 3_н`j;:< I3B)93i.EMiڀ =]|Gm]W0KID~y83:]&XaU!ՙC@B0Ұun004=+'44pT0 *H 0o1 0 USE10U AddTrust AB1&0$U AddTrust External TTP Network1"0 UAddTrust External CA Root0 050607080910Z 200530104838Z01 0 UUS1 0 UUT10USalt Lake City1 0 U The USERTRUST Network1!0 U http://www.usertrust.com1604U-UTN-USERFirst-Client Authentication and Email0"0 *H 0 9}A;bF7`u9eJGHjM5BI/ |1Nd.)բdąQ5yNh{ zɤ2 O0 nFxoY^/m/묡j.g5y iF͠ v:z'[=s "HaLi.1 ,CZ qYں gT: we tbh ~GeMW(t40b0, 00 U #0z4&&T$T0 U g}ĝ&p KPH|=n}0U 0U 00U 00U 0DU =0;09753http://crl.usertrust.com/AddTrustExternalCARoot.crl05+)0'0%+0http://ocsp.usertrust.com0 *H c(1{b#1sSQ L֟/g~x3t&dp bP#4Vp4nx7 _j̉_|>Q5|`k:+߳}[| P-sxt1^˚ƹ7urDg% R%G<N 6wH\-?`q`q 6 lKuI;ٟMx&-n_ 10001 0 UGB10UGreater Manchester10USalford10U COMODO CA Limited1907U0COMODO Client Authentication and Secure Email CA,]~!dn=0 + 0 *H 1 *H 0 *H 1 141208143829Z0# *H 1 룁E0y *H 1l0j0 `He*0 `He0 `He0 *H 0*H 0 *H @0+0 *H (0 *H <-_ b6G @M |Qd4&nutMeLX[*m ?&kмp@ S< 6"=62V=P3C U̽ߌWxO C82UD7$C1 )Wex?j)xx6"Z2 rBTXRf! Ѧ HU 6EseYHZBar 2Q l-
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