From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.sysutils.supervision.general/2814 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Guillermo Newsgroups: gmane.comp.sysutils.supervision.general Subject: Re: The "Unix Philosophy 2020" document Date: Sat, 28 Dec 2019 12:19:30 -0300 Message-ID: References: <20190831130730.ki6ma7i5curucowe@caspervector> <20190901091157.bjtfhqq6d2rg75yo@caspervector> <20190927083816.tectynx7dzlfcvb7@caspervector> <20191012173743.drzlgnrw4hib6hh4@caspervector> <20191117062644.lt6wfmqwijqqhc5w@caspervector> <20191226175258.o2nsregew6tlqlbu@caspervector> <20191227112309.3fow6vynss2ifw4t@caspervector> <20191228005407.1bf2a764@dickeberta> <20191228005654.4b24be30@dickeberta> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="218350"; mail-complaints-to="usenet@blaine.gmane.org" To: Supervision Original-X-From: supervision-return-2403-gcsg-supervision=m.gmane.org@list.skarnet.org Sat Dec 28 16:19:41 2019 Return-path: Envelope-to: gcsg-supervision@m.gmane.org Original-Received: from alyss.skarnet.org ([95.142.172.232]) by blaine.gmane.org with smtp (Exim 4.89) (envelope-from ) id 1ilDsT-000uiQ-GX for gcsg-supervision@m.gmane.org; Sat, 28 Dec 2019 16:19:41 +0100 Original-Received: (qmail 26943 invoked by uid 89); 28 Dec 2019 15:20:06 -0000 Mailing-List: contact supervision-help@list.skarnet.org; run by ezmlm Original-Sender: Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Original-Received: (qmail 26936 invoked from network); 28 Dec 2019 15:20:06 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :content-transfer-encoding; bh=QcsAtUga1VMDsh8XUlVGQsweH3dwrYHEFDEPo5evcSM=; b=C+XI0dCqk2tppLh8WKQKJL6Cga479Xcx+Hf2bSVSE90/vuT28RHyrhF3/gHJDPmAYJ +EPMq5urXFTmgcXkVwuByDg/CshRzbtVHIjid2go/8in/1oybj0bQ8EygiZGb0dz49uN K0xABjJ8utlW/zOWK3B/OYDmZyz1uUPgBsz+JA2oDdZ3OslbmBVuo1vKb7p6S10Gr2Yk ZoyWyDZe8xuN/mZAXdxBkgyaWLe+zPLQQPe/r7Imaps0G8BIDnB3GUOcA6XNGdk1+gKY LSP+oZHHdexTXF/v+5sRjXWN2u9NTkizgdVVuu3bqsANDFXdTdg5gfRtdMCWy55Py0Rm uJTw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:content-transfer-encoding; bh=QcsAtUga1VMDsh8XUlVGQsweH3dwrYHEFDEPo5evcSM=; b=SnoBUTG6Ec8rfpGDQaq3cL/JyMUZFbCVEvDeBg3vp1eG9MKYqYStnqKUdAjVJmD1PB pLfXtnMxkz4nDcECuk5gJb3EL+VVOmjJA8Y+muhjz9zkmGKG7j4eLQzCLHKOntNWVX9r tenJP66B5TS337TxR9jy/dtJsp/56q1h4Scxgh6QTl0yIu4tjREQrDklBlOCsJAcwIFr vVkXsRguqcg1jcXM6ASaM6bukv50W9+a3MzB74Kqt4lw5IzUtuwNqNX+wYr5mXGtNlha Zcn5uWUgA5+4wwZ3tfd7Dnhl6/CXkQutsXuwa67qKutmE0MUTAOAZ3iggW7JFRJD5dMD Fejw== X-Gm-Message-State: APjAAAU+u19NMgbsewTWkF81y2p6VrJjv2abjJKki02NV1taSk+0cbqe uF2sTVd15zGXzLqsLwB0NMulJz3r2LAS3VuQDCdgwg== X-Google-Smtp-Source: APXvYqxbVDoTZwrmMxK/2jai/Y/vZgKujXV1JB0nE6cl7qjmY2NXJS1gev6kolIQTyrNdlsM3BKl04y8fdZAB2Xr6RM= X-Received: by 2002:a92:d451:: with SMTP id r17mr48536598ilm.201.1577546378472; Sat, 28 Dec 2019 07:19:38 -0800 (PST) In-Reply-To: <20191228005654.4b24be30@dickeberta> Xref: news.gmane.org gmane.comp.sysutils.supervision.general:2814 Archived-At: El vie., 27 dic. 2019 a las 20:56, Oliver Schad escribi=C3=B3: > > Sorry, I have to correct that a bit: you can use the freezer cgroup as > I did, but there is no guarantee, that you can successfully kill a > freezed process. You can't? So the 'kill -9' command in your script might not work while the cgroup's state is "FROZEN"? > So you can decide: > > 1) race-condition > 2) unkillallable processes without race-condition AFAIK systemd does not (and will not?) use the freezer cgroup controller, so I guess it's 1) in that case :) * https://github.com/systemd/systemd/blob/db9c5ae73e23d816e2df2a3e10a9a2a60= b5b3ed7/docs/CGROUP_DELEGATION.md#controller-support G.