From debbugs-submit-bounces@debbugs.gnu.org Sat Nov 09 10:00:25 2024 Received: (at submit) by debbugs.gnu.org; 9 Nov 2024 15:00:25 +0000 Received: from localhost ([127.0.0.1]:54015 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1t9mwq-0008Jk-Q7 for submit@debbugs.gnu.org; Sat, 09 Nov 2024 10:00:25 -0500 Received: from lists.gnu.org ([209.51.188.17]:39920) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <~@wolfsden.cz>) id 1t9mwm-0008JZ-C4 for submit@debbugs.gnu.org; Sat, 09 Nov 2024 10:00:23 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <~@wolfsden.cz>) id 1t9mud-000303-Rl for bug-guix@gnu.org; Sat, 09 Nov 2024 09:58:08 -0500 Received: from wolfsden.cz ([37.205.8.62]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <~@wolfsden.cz>) id 1t9mub-0007mw-Pq for bug-guix@gnu.org; Sat, 09 Nov 2024 09:58:07 -0500 Received: by wolfsden.cz (Postfix, from userid 104) id C07C93121C8; Sat, 9 Nov 2024 14:58:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=wolfsden.cz; s=mail; t=1731164282; bh=WBgAjrSm2BeYRXy3kMqhTRskAFFoupuREnCySrBZDXA=; h=From:To:Subject:Date; b=x1I69aTlviq4az5tP0d/+Ykk3bX0pW7i2ugCWSsOvAKcMGexfiLCZsFUUgNBQuDPS Dk7cwt89xSTByTN7Il6c1xByzayZez9X/xrVlNNrHIDMg9zV4o/SEMiXYYFMOCafMd 6JRAsBkFGvzMM7J137XFo4lJp1vQn+NZf26Yz2QpZ6i2hSSGkVQd7E4thrh4EWpUg3 IAKfq5STalQMwD13YFQ1hV0+UotQaXAshDUdHiig3uRH+8sXvVi8U3RLutsPhxdl3e 78YSPvibbgS7j5Tn0Rp3ab8Nfd9KCxmREF0UpFbM7sV8+91PBwITpas8mwoJZzjwm8 HjiWhE3eDlMMyB++IL2vmzwjJLxQSnAdzk7uPnCH+TNwz142EGAS30/mgIx8EI4MVp Q4ruTtqCoUJco70cRxxbt2HZf2oMHvJ6UVePbnrECtARkEMSatEH6eC2H1EEZXx2sJ jhuhFMcTfYPx3hrCNB+guimlgKAL+00aEwxk4EJ981Ir3MmROsiCOO6oTAJKefb0sK YYSrO2V6vMSia6zfLPJFWI3vZyZje6ZADhkeYWPWfS4G1RUJMJ4Ub1UaEI3mM3pmwj 8QuG8mefTUWCWyIqgAQ6KlZPtqWkRhCZSWJPER9DZgPcywMX2gzkfswHSvCMRLBshh Mpr9vKhyMDJrSipC53TP/uLE= X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on wolfsden X-Spam-Level: X-Spam-Status: No, score=-3.1 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 Received: from localhost (unknown [128.0.188.242]) by wolfsden.cz (Postfix) with ESMTPSA id 4B022312378 for ; Sat, 9 Nov 2024 14:58:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=wolfsden.cz; s=mail; t=1731164282; bh=WBgAjrSm2BeYRXy3kMqhTRskAFFoupuREnCySrBZDXA=; h=From:To:Subject:Date; b=x1I69aTlviq4az5tP0d/+Ykk3bX0pW7i2ugCWSsOvAKcMGexfiLCZsFUUgNBQuDPS Dk7cwt89xSTByTN7Il6c1xByzayZez9X/xrVlNNrHIDMg9zV4o/SEMiXYYFMOCafMd 6JRAsBkFGvzMM7J137XFo4lJp1vQn+NZf26Yz2QpZ6i2hSSGkVQd7E4thrh4EWpUg3 IAKfq5STalQMwD13YFQ1hV0+UotQaXAshDUdHiig3uRH+8sXvVi8U3RLutsPhxdl3e 78YSPvibbgS7j5Tn0Rp3ab8Nfd9KCxmREF0UpFbM7sV8+91PBwITpas8mwoJZzjwm8 HjiWhE3eDlMMyB++IL2vmzwjJLxQSnAdzk7uPnCH+TNwz142EGAS30/mgIx8EI4MVp Q4ruTtqCoUJco70cRxxbt2HZf2oMHvJ6UVePbnrECtARkEMSatEH6eC2H1EEZXx2sJ jhuhFMcTfYPx3hrCNB+guimlgKAL+00aEwxk4EJ981Ir3MmROsiCOO6oTAJKefb0sK YYSrO2V6vMSia6zfLPJFWI3vZyZje6ZADhkeYWPWfS4G1RUJMJ4Ub1UaEI3mM3pmwj 8QuG8mefTUWCWyIqgAQ6KlZPtqWkRhCZSWJPER9DZgPcywMX2gzkfswHSvCMRLBshh Mpr9vKhyMDJrSipC53TP/uLE= From: Tomas Volf <~@wolfsden.cz> To: bug-guix@gnu.org Subject: Shepherd service is not getting respawned. Mail-Followup-To: bug-guix@gnu.org Date: Sat, 09 Nov 2024 15:58:02 +0100 Message-ID: <87bjyo8net.fsf@wolfsden.cz> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=37.205.8.62; envelope-from=~@wolfsden.cz; helo=wolfsden.cz X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.3 (-) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.3 (--) Hi, I wrote a shepherd service to function as a check for networking being actually up, but it does not get respawned when it fails and I do not understand why. This is the service in my operating-system: --8<---------------cut here---------------start------------->8--- (simple-service 'network-online shepherd-root-service-type (list (shepherd-service (requirement '(networking)) (provision '(network-online)) (documentation "Wait for the network to come up.") (start #~(lambda _ (let* ((cmd "/run/privileged/bin/ping -qc1 -W1 1.1.1.1") (status (system cmd))) (= 0 (status:exit-val status))))) (one-shot? #t) ;; Try every second. (respawn-delay 1) ;; Retry forever. Double-quoting is intentional. (respawn-limit ''(5 . 5))))) --8<---------------cut here---------------end--------------->8--- Now, when I reboot the machine, I see in the log that the service did start: --8<---------------cut here---------------start------------->8--- Nov 7 00:18:20 localhost shepherd[1]: Starting service network-online... [..] Nov 7 00:18:20 localhost shepherd[1]: [sh] PING 192.168.0.110 (192.168.0.110): 56 data bytes Nov 7 00:18:20 localhost shepherd[1]: [sh] /run/privileged/bin/ping: sending packet: Network is unreachable Nov 7 00:18:20 localhost shepherd[1]: Service network-online could not be started. Nov 7 00:18:20 localhost shepherd[1]: Service network-online failed to start. --8<---------------cut here---------------end--------------->8--- The fail on first run is expected, however the problem is it starts exactly once. I do not see any attempts to respawn it in the /var/log/messages, but based on the documentation the service *should* get respawned, since it failed. What am I doing wrong? Would anyone have any suggestions, either what is wrong with the code above or how to approach it in another way? Have a nice day, Tomas -- There are only two hard things in Computer Science: cache invalidation, naming things and off-by-one errors. From debbugs-submit-bounces@debbugs.gnu.org Sun Nov 10 06:32:59 2024 Received: (at 74279) by debbugs.gnu.org; 10 Nov 2024 11:32:59 +0000 Received: from localhost ([127.0.0.1]:55950 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1tA6Bf-0005Bc-Dz for submit@debbugs.gnu.org; Sun, 10 Nov 2024 06:32:59 -0500 Received: from eggs.gnu.org ([209.51.188.92]:43302) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1tA6Bd-0005BN-Hr for 74279@debbugs.gnu.org; Sun, 10 Nov 2024 06:32:58 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tA6BX-0007w1-OF for 74279@debbugs.gnu.org; Sun, 10 Nov 2024 06:32:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:Date:References:In-Reply-To:Subject:To: From; bh=g/VMnFZ2K4fPOyJZKpQjhw+KTsr8lvXX7+/+n+/OYqM=; b=o8Fhe48BHrQ8eKdq1xO7 RwdUKC1WUhpBFQ4pqOcmwk5QRPuitQtdCnYM69XSMzDJXhwogO2gFoBIwejniSzUlnnjDaDn+xT3u pKxE7YzXHkvjaWnrCP187PZ96sB5n7xSGs2fduhOXqFM9YC3Z3xik8h3Uj0kwfzkGcjOMfOW+aY/x p58S9PYpA5TiGxiC3Bm7JrID6eJGtbsBHuK3C9PKB9mgJMCAWjBBJXMIVV9nUDY1embPeB7rBZEzi 141B1eP0v3v8+J1vhH7SKOs66UW/DwXbtcMqZbj/JXQFLpIus7fAU5Q/SH8AZ9Cpk73Onhfkt8FJK FkZ5EbGco9VXOQ==; From: =?utf-8?Q?Ludovic_Court=C3=A8s?= To: 74279@debbugs.gnu.org Subject: Re: bug#74279: Shepherd service is not getting respawned. In-Reply-To: <87bjyo8net.fsf@wolfsden.cz> (Tomas Volf's message of "Sat, 09 Nov 2024 15:58:02 +0100") References: <87bjyo8net.fsf@wolfsden.cz> Date: Sun, 10 Nov 2024 12:32:48 +0100 Message-ID: <87zfm7wcgv.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 74279 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) Hi Tomas, Tomas Volf <~@wolfsden.cz> skribis: > (start #~(lambda _ > (let* ((cmd "/run/privileged/bin/ping -qc1 -W1 1.1.1.1= ") > (status (system cmd))) > (=3D 0 (status:exit-val status))))) > (one-shot? #t) > ;; Try every second. > (respawn-delay 1) > ;; Retry forever. Double-quoting is intentional. > (respawn-limit ''(5 . 5))))) [...] > Nov 7 00:18:20 localhost shepherd[1]: Starting service network-online... > [..] > Nov 7 00:18:20 localhost shepherd[1]: [sh] PING 192.168.0.110 (192.168.0= .110): 56 data bytes > Nov 7 00:18:20 localhost shepherd[1]: [sh] /run/privileged/bin/ping: sen= ding packet: Network is unreachable > Nov 7 00:18:20 localhost shepherd[1]: Service network-online could not b= e started. > Nov 7 00:18:20 localhost shepherd[1]: Service network-online failed to s= tart. I think there=E2=80=99s a misunderstanding here: =E2=80=98respawn?=E2=80=99= is about respawning a service that, once it is running, terminates prematurely. In your case, the service does not start (its =E2=80=98start=E2=80=99 metho= d returns #f). Now, it would probably make sense to have a mechanism to retry starting services. In the specific case of =E2=80=98network-online=E2=80=99 though, you could = use a different approach: the =E2=80=98start=E2=80=99 method could itself try ret= ry pinging the network several times and fail only if it failed to reach the network after, say, 10s. (Remember that =E2=80=98start=E2=80=99 and =E2=80= =98stop=E2=80=99 must complete in a timely fashion.) HTH, Ludo=E2=80=99. From debbugs-submit-bounces@debbugs.gnu.org Wed Nov 20 16:48:44 2024 Received: (at control) by debbugs.gnu.org; 20 Nov 2024 21:48:44 +0000 Received: from localhost ([127.0.0.1]:48028 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1tDsZ2-0001ub-Dc for submit@debbugs.gnu.org; Wed, 20 Nov 2024 16:48:44 -0500 Received: from eggs.gnu.org ([209.51.188.92]:42646) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1tDsZ1-0001uM-3C for control@debbugs.gnu.org; Wed, 20 Nov 2024 16:48:43 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tDsYv-0004pc-6p for control@debbugs.gnu.org; Wed, 20 Nov 2024 16:48:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:Subject:From:To:Date:in-reply-to: references; bh=RuF0zfl183RMemvB0RwhUqawhzPlvdeeT/3Rz59oP+k=; b=rUcBhqNivS54+v 7dTZ2W22VMLPFYshLnLNrd3J0utnPvBi2GLH/oYVFkJUeMpMLyNAQeZQDSnJUiNOUWvaFxF3Xz83A oQf+ehrM5QFuNY6lDITXOfBQ5oP83IeajoNGDcA6MGCuQZYOMkdeIZZ+u7ScMjfi5V6g9gZ/Y0kjr tzfqczNhC2ZqyIlwoaN4cxBrNzPpPgOroy61QgBgFacU5B4W57R5F6wU5oc7pS3dIWtPXIcxMaWLW xxoRPAaezYkSVSQnSehN/ddYQkbLeUG/dvlbuJGmA0EsPPLXJCfEgAp6VrVwPe0j3SIay5CGTjKMG K5jlgq3cCIjJ8YndhrIg==; Date: Wed, 20 Nov 2024 22:48:33 +0100 Message-Id: <87zfltvaoe.fsf@gnu.org> To: control@debbugs.gnu.org From: =?utf-8?Q?Ludovic_Court=C3=A8s?= Subject: control message for bug #74279 MIME-version: 1.0 Content-type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: control X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) tags 74279 notabug close 74279 quit From unknown Sun Jun 22 00:49:59 2025 Received: (at fakecontrol) by fakecontrolmessage; To: internal_control@debbugs.gnu.org From: Debbugs Internal Request Subject: Internal Control Message-Id: bug archived. Date: Thu, 19 Dec 2024 12:24:08 +0000 User-Agent: Fakemail v42.6.9 # This is a fake control message. # # The action: # bug archived. thanks # This fakemail brought to you by your local debbugs # administrator