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From: Robert Obkircher <r.obkircher@proxmox.com>
To: pbs-devel@lists.proxmox.com
Subject: [pbs-devel] [PATCH proxmox-backup] Avoid lost updates to configuration during datastore deletion
Date: Thu, 30 Oct 2025 11:48:50 +0100	[thread overview]
Message-ID: <20251030105034.45964-1-r.obkircher@proxmox.com> (raw)

Previously, the following steps created files in /srv/test2 but
removed test2 from the configuration:

  proxmox-backup-manager datastore create test1 /srv/test1
  proxmox-backup-manager datastore remove test1 --destroy-data &
  sleep 0.1
  proxmox-backup-manager datastore create test2 /srv/test2

Reported-by: https://forum.proxmox.com/threads/possible-bug-when-deleting-a-datastore.174715/
Signed-off-by: Robert Obkircher <r.obkircher@proxmox.com>
---
 pbs-datastore/src/datastore.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pbs-datastore/src/datastore.rs b/pbs-datastore/src/datastore.rs
index 03830616..14dad93a 100644
--- a/pbs-datastore/src/datastore.rs
+++ b/pbs-datastore/src/datastore.rs
@@ -2154,6 +2154,8 @@ impl DataStore {
         if ok {
             info!("Removing datastore from config...");
             let _lock = pbs_config::datastore::lock_config()?;
+            // read again to avoid loosing concurrent modifications
+            let (mut config, _digest) = pbs_config::datastore::config()?;
             let _ = config.sections.remove(name);
             pbs_config::datastore::save_config(&config)?;
         }
-- 
2.47.3



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             reply	other threads:[~2025-10-30 10:50 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-30 10:48 Robert Obkircher [this message]
2025-10-30 12:05 ` Fiona Ebner

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