[pbs-devel] [PATCH proxmox-backup 4/7] api: admin: trigger sync jobs only on datastore mount

Christian Ebner c.ebner at proxmox.com
Tue Feb 4 15:34:49 CET 2025


This patch should rather be placed as preparatory patch before patch 3 
and changes to `do_sync_jobs` directly included in the previous patch.

On 1/16/25 07:45, Hannes Laimer wrote:
> Ensure sync jobs are triggered only when the datastore is actually
> mounted. If the datastore is already mounted, we don't fail,
> but sync jobs should not be re-triggered unnecessarily. This change
> prevents redundant sync job execution.
> 
> Signed-off-by: Hannes Laimer <h.laimer at proxmox.com>
> ---
>   src/api2/admin/datastore.rs | 10 ++++++----
>   1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/src/api2/admin/datastore.rs b/src/api2/admin/datastore.rs
> index 21b58391d..e29ff9b99 100644
> --- a/src/api2/admin/datastore.rs
> +++ b/src/api2/admin/datastore.rs
> @@ -2445,14 +2445,14 @@ fn setup_mounted_device(datastore: &DataStoreConfig, tmp_mount_path: &str) -> Re
>   /// The reason for the randomized device mounting paths is to avoid two tasks trying to mount to
>   /// the same path, this is *very* unlikely since the device is only mounted really shortly, but
>   /// technically possible.
> -pub fn do_mount_device(datastore: DataStoreConfig) -> Result<(), Error> {
> +pub fn do_mount_device(datastore: DataStoreConfig) -> Result<bool, Error> {
>       if let Some(uuid) = datastore.backing_device.as_ref() {
>           if pbs_datastore::get_datastore_mount_status(&datastore) == Some(true) {
>               info!(
>                   "device is already mounted at '{}'",
>                   datastore.absolute_path()
>               );
> -            return Ok(());
> +            return Ok(false);
>           }
>           let tmp_mount_path = format!(
>               "{}/{:x}",
> @@ -2497,7 +2497,7 @@ pub fn do_mount_device(datastore: DataStoreConfig) -> Result<(), Error> {
>               datastore.name
>           )
>       }
> -    Ok(())
> +    Ok(true)
>   }
>   
>   async fn do_sync_jobs(
> @@ -2582,7 +2582,9 @@ pub fn mount(store: String, rpcenv: &mut dyn RpcEnvironment) -> Result<Value, Er
>           auth_id.to_string(),
>           to_stdout,
>           move |_worker| async move {
> -            do_mount_device(datastore.clone())?;
> +            if !do_mount_device(datastore.clone())? {
> +                return Ok(());
> +            }
>               let Ok((sync_config, _digest)) = pbs_config::sync::config() else {
>                   warn!("unable to read sync job config, won't run any sync jobs");
>                   return Ok(());





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