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file-restore: increase lock timeout on QEMU map 

This lock is held during VM startup, so that multiple calls will not
start VMs twice. But this means that the timeout needs to incorporate
the time it might take a VM to boot, so increase it quite a bit.

This could previously lead to "interrupted system call" errors when
accessing backups with many disks.

Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
This commit is contained in:
Stefan Reiter 2021-07-13 11:23:20 +02:00 committed by Dietmar Maurer
parent 2072dede4a
commit 66501529a2
1 changed files with 1 additions and 1 deletions
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2
src/bin/proxmox_file_restore/block_driver_qemu.rs
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@ -50,7 +50,7 @@ impl VMStateMap {
/// Acquire a lock on the state map and retrieve a deserialized version /// Acquire a lock on the state map and retrieve a deserialized version
fn load() -> Result<Self, Error> { fn load() -> Result<Self, Error> {
let mut file = Self::open_file_raw(true)?; let mut file = Self::open_file_raw(true)?;
lock_file(&mut file, true, Some(std::time::Duration::from_secs(5)))?; lock_file(&mut file, true, Some(std::time::Duration::from_secs(120)))?;
let map = serde_json::from_reader(&file).unwrap_or_default(); let map = serde_json::from_reader(&file).unwrap_or_default();
Ok(Self { map, file }) Ok(Self { map, file })
} }