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Wed, 8 Jul 2020 19:15:55 +0000 From: Vladimir Sementsov-Ogievskiy To: qemu-devel@nongnu.org Subject: [PATCH 0/2] keepalive default Date: Wed, 8 Jul 2020 22:15:37 +0300 Message-Id: <20200708191540.28455-1-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.21.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: AM0PR04CA0123.eurprd04.prod.outlook.com (2603:10a6:208:55::28) To AM7PR08MB5494.eurprd08.prod.outlook.com (2603:10a6:20b:dc::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (185.215.60.17) by AM0PR04CA0123.eurprd04.prod.outlook.com (2603:10a6:208:55::28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3174.21 via Frontend Transport; Wed, 8 Jul 2020 19:15:54 +0000 X-Mailer: git-send-email 2.21.0 X-Originating-IP: [185.215.60.17] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 92c05d76-2256-4350-2624-08d82373569a X-MS-TrafficTypeDiagnostic: AM6PR08MB4070: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:6430; 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envelope-from=vsementsov@virtuozzo.com; helo=EUR04-HE1-obe.outbound.protection.outlook.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/08 15:31:05 X-ACL-Warn: Detected OS = Windows NT kernel [generic] [fuzzy] X-Spam_score_int: -37 X-Spam_score: -3.8 X-Spam_bar: --- X-Spam_report: (-3.8 / 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, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: vsementsov@virtuozzo.com, berrange@redhat.com, armbru@redhat.com, kraxel@redhat.com, den@openvz.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi all! We understood, that keepalive is almost superfluous with default 2 hours in /proc/tcp_keepalive_time. Forcing user to setup keepalive for the whole system doesn't seem right, better setup it per-socket. These series suggests to set some defaults for keepalive settings as well as set keepalive itself by default. keepalive helps to not hang on io other side is down. Vladimir Sementsov-Ogievskiy (2): sockets: keep-alive settings util/qemu-sockets: make keep-alive enabled by default qapi/sockets.json | 33 +++++++++++++++++- util/qemu-sockets.c | 81 +++++++++++++++++++++++++++++++++++++++------ 2 files changed, 102 insertions(+), 12 deletions(-) -- 2.21.0