From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id EAB9569FC9 for ; Tue, 11 Aug 2020 10:51:02 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 65DB01B210 for ; Tue, 11 Aug 2020 10:51:02 +0200 (CEST) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [212.186.127.180]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS id 049A21B1BD for ; Tue, 11 Aug 2020 10:50:59 +0200 (CEST) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id C01984459C for ; Tue, 11 Aug 2020 10:50:58 +0200 (CEST) From: Stefan Reiter To: pbs-devel@lists.proxmox.com Date: Tue, 11 Aug 2020 10:50:35 +0200 Message-Id: <20200811085042.30686-1-s.reiter@proxmox.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL -0.067 Adjusted score from AWL reputation of From: address KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment RCVD_IN_DNSWL_MED -2.3 Sender listed at https://www.dnswl.org/, medium trust SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record URIBL_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to URIBL was blocked. See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [environment.rs, backup.rs, prune.rs, pull.rs, fs.rs, proxmox.com, proxmox-backup-proxy.rs, datastore.rs] Subject: [pbs-devel] [PATCH v2 0/7] More flocking and race elimination X-BeenThere: pbs-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox Backup Server development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Aug 2020 08:51:03 -0000 The previous series[0] already fixed some bugs, but it also introduced some new ones, e.g. incomplete but not running backups were unable to be removed. This is the next step to race-free™ backups, this time going all-in on flocks. The 6th patch introduces locking for base backups, but also re-writes the previous (unnecessarily complex) base-snapshot existance check, which is therefor reverted in patch 5. v2: * drop applied patches * add cleanup patches from dietmar and rewrite series on top [1] * use new lock_dir_noblock function * rethink prune logic w/ feedback from Fabi [0] https://lists.proxmox.com/pipermail/pbs-devel/2020-July/000233.html [1] https://lists.proxmox.com/pipermail/pbs-devel/2020-August/000311.html proxmox-backup: Dietmar Maurer (2): src/tools/fs.rs: new helper lock_dir_noblock src/backup/backup_info.rs: remove BackupGroup lock() Stefan Reiter (5): datastore: prevent in-use deletion with locks instead of heuristic backup: flock snapshot on backup start Revert "backup: ensure base snapshots are still available after backup" backup: lock base snapshot and ensure existance on finish prune: also check backup snapshot locks src/api2/admin/datastore.rs | 2 +- src/api2/backup.rs | 16 ++++++--- src/api2/backup/environment.rs | 17 +++------- src/backup/backup_info.rs | 43 +---------------------- src/backup/datastore.rs | 60 ++++++++++----------------------- src/backup/prune.rs | 50 +++++++++++++++++---------- src/bin/proxmox-backup-proxy.rs | 2 +- src/client/pull.rs | 2 +- src/tools/fs.rs | 39 +++++++++++++++++++-- tests/prune.rs | 6 ++-- 10 files changed, 110 insertions(+), 127 deletions(-) -- 2.20.1