From unknown Wed Apr 29 13:07:15 2026 X-Loop: owner@bugs.x2go.org Subject: Bug#523: Move the complete session dir (NX_ROOT) to local file space Reply-To: Mike Gabriel , 523@bugs.x2go.org Resent-From: Mike Gabriel Resent-To: x2go-dev@lists.x2go.org Resent-CC: X2Go Developers X-Loop: owner@bugs.x2go.org Resent-Date: Thu, 26 Jun 2014 23:15:01 +0000 Resent-Message-ID: Resent-Sender: owner@bugs.x2go.org X-X2Go-PR-Message: report 523 X-X2Go-PR-Package: x2goserver X-X2Go-PR-Keywords: Received: via spool by submit@bugs.x2go.org id=B.140382447128507 (code B); Thu, 26 Jun 2014 23:15:01 +0000 Received: (at submit) by bugs.x2go.org; 26 Jun 2014 23:14:31 +0000 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on ymir.das-netzwerkteam.de X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.3.2 Received: from freya.das-netzwerkteam.de (freya.das-netzwerkteam.de [88.198.48.199]) by ymir.das-netzwerkteam.de (Postfix) with ESMTPS id 706CB5DB1B for ; Fri, 27 Jun 2014 01:14:30 +0200 (CEST) Received: from grimnir.das-netzwerkteam.de (grimnir.das-netzwerkteam.de [78.46.204.98]) by freya.das-netzwerkteam.de (Postfix) with ESMTPS id 29BCA3CF0; Fri, 27 Jun 2014 01:14:30 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by grimnir.das-netzwerkteam.de (Postfix) with ESMTP id 194AC3B8F0; Fri, 27 Jun 2014 01:14:30 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at grimnir.das-netzwerkteam.de Received: from grimnir.das-netzwerkteam.de ([127.0.0.1]) by localhost (grimnir.das-netzwerkteam.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vLCiUKRMEb4E; Fri, 27 Jun 2014 01:14:29 +0200 (CEST) Received: from grimnir.das-netzwerkteam.de (localhost [127.0.0.1]) by grimnir.das-netzwerkteam.de (Postfix) with ESMTPS id D87853B894; Fri, 27 Jun 2014 01:14:29 +0200 (CEST) Received: from pD9E9F59B.dip0.t-ipconnect.de (pD9E9F59B.dip0.t-ipconnect.de [217.233.245.155]) by mail.das-netzwerkteam.de (Horde Framework) with HTTP; Thu, 26 Jun 2014 23:14:29 +0000 Date: Thu, 26 Jun 2014 23:14:29 +0000 Message-ID: <20140626231429.Horde.KCJd_S--KJN8YlIi_hnK9w5@mail.das-netzwerkteam.de> From: Mike Gabriel To: submit@bugs.x2go.org Cc: o.schneyder@phoca-gmbh.de User-Agent: Internet Messaging Program (IMP) H5 (6.1.7) Accept-Language: en,de Organization: DAS-NETZWERKTEAM X-Originating-IP: 217.233.245.155 X-Remote-Browser: Mozilla/5.0 (X11; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0 Iceweasel/30.0 Content-Type: multipart/signed; boundary="=_stvyfnKFdaE9ugmglWkRhA6"; protocol="application/pgp-signature"; micalg=pgp-sha1 MIME-Version: 1.0 This message is in MIME format and has been PGP signed. --=_stvyfnKFdaE9ugmglWkRhA6 Content-Type: text/plain; charset=utf-8; format=flowed; DelSp=Yes Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Package: x2goserver Severity: important Hi all, hi Alex, we got feedback about NX and NFS that makes me think we should move=20=20 the=20server-side session dir completely to local file space, e.g. /tmp/.x2go-$USER/C- and only leave a symlink behind at its current location:=20=20 ~/.x2go/C-=20---> /tmp/.x2go-$USER/C- Read about deftjack's experience with NX below (thanks to "deftjack"=20=20 for=20allowing me quoting the discussion). Mike """ [discussion on #x2go at irc.freenode.net (2014-06-26)] 23:06 < deftjack> So I have a full blown desktop on the system and it=20=20 still=20crashes. [...] 23:36 < deftjack> well its something to do with the nfs home directories. 23:48 < deftjack> In NX you could tell it to use an alternate home=20=20 directory=20for users. Can you do that with x2go? 23:49 < deftjack> One reason I did that with NX was to get the session=20= =20 info=20off nfs and on the local box. 23:49 < deftjack> It made things far more stable. 23:49 < deftjack> And faster. [...] 23:58 < deftjack> It was "UserNXDirectoryPath" in the node.cfg on NX. 23:58 < deftjack> Basically it told it where it should put the users .nx di= r. 23:59 < deftjack> at the nxserver/nxnode level. 23:59 < deftjack> I should be able to work around this by simply=20=20 making=20the system not use nfs homes and they will just need to be made when people are given ssh access. 23:59 < deftjack> but still use ldap auth. [...] 00:27 <@sunweaver> deftjack: are you playing with X2GO Server from the=20= =20 nightly=20builds? [...] 00:28 <@sunweaver> the nightly builds are currently broken due to a=20=20 90%-baked=20commit of another developer... 00:28 <@sunweaver> feedback mails have been sent, no reaction, yet. [...] 00:38 <@sunweaver> deftjack: the NX_ROOT is ~/.x2go/C-/ on=20=20 the=20server. 00:39 <@sunweaver> deftjack: define "more stable" and define "and faster"..= . [...] 00:51 < deftjack> sunweaver: If there was ever a disruption or even=20=20 significant=20slow down in nfs NX would timeout on access to its session info and peoples NX sessions would simply d= ie. [...] 00:51 < deftjack> sunweaver: Faster in that writing locally to the=20=20 machine=20was faster than nfs even on a good day. [...] 00:52 <@sunweaver> we actually should then consider moving NX_ROOT to=20=20 /tmp/.x2go-$user/=20completely... 00:52 < deftjack> Note we dont have crappy nfs here. Netapps but=20=20 sometimes=20the servers would get hit hard and three would just be this threshold that would cause NX issue. 00:52 <@sunweaver> ok.... 00:52 < deftjack> sunweaver: So in NX they just allowed you to specify=20= =20 a=20different location for .nx on the nxnode(server side). 00:52 < deftjack> It worked perfectly. 00:53 < deftjack> I just put them all in /var/nxhome so user foo would=20= =20 have=20/var/nxhome/foo/.nx 00:53 <@sunweaver> this is very interesting information... [...] 00:53 < deftjack> But still have access to their nfs mounted /home/foo [...] 00:54 < deftjack> Ive also run into some selinux issues with their=20=20 homes=20on nfs etc. Easily fixed but a pain. [...] 00:55 <@sunweaver> deftjack: may I quote your information in a post on=20= =20 x2go-dev=20mailing list ? 00:55 <@sunweaver> because we have to get the NX_ROOT issue fixed for=20=20 at=20least one file now, anyway... [...] 01:07 < deftjack> sunweaver: absolutely. 01:07 <@sunweaver> thanks! 01:07 < deftjack> sunweaver: sorry at work, disruptions... 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