There is a race upon reload, where it can happen that:
1. systemd forks off /bin/kill -HUP $MAINPID
2. Current instance forks off new one and notifies systemd with the
new MAINPID.
3. systemd sets new MAINPID.
4. systemd receives SIGCHLD for the kill process (which is the current
control process for the service) and reads the PID of the old
instance from the PID file, resetting MAINPID to the PID of the old
instance.
5. Old instance exits.
6. systemd receives SIGCHLD for the old instance, reads the PID of the
old instance from the PID file once more. systemd sees that the
MAINPID matches the child PID and considers the service exited.
7. systemd receivese notification from the new PID and is confused.
The service won't get active, because the notification wasn't
handled.
To fix it, update the PID file before sending the MAINPID
notification, similar to what a comment in systemd's
src/core/service.c suggests:
> /* Forking services may occasionally move to a new PID.
> * As long as they update the PID file before exiting the old
> * PID, they're fine. */
but for our Type=notify "before sending the notification" rather than
"before exiting", because otherwise, the mix-up in 4. could still
happen (although it might not actually be problematic without the
mix-up in 6., it still seems better to avoid).
Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
namely 'StreamingSync' and 'StreamingAsync'
in rest-server by using the new formatter function,
and in the debug binary by using 'to_value'
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
that takes the data in form of a `Box<dyn SerializableReturn + Send>`
instead of a Value.
Implement it in json and extjs formatter, by starting a thread and
stream the serialized data via a `BufWriter<SenderWriter>` and use
the Receiver side as a stream for the response body.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
The entries in a file go from oldest end-time in the first time to
newest end-time in the last line. So, just because the first line is
older than the cut-off time, the remaining one doesn't necessarily
have to be old enough too. What we can know for sure that older than
the current checked rotations of the task archive are definitively up
for deletion.
Another possibility would be to check the last line, but as scanning
backwards is more expensive/complex to do while only being an actual
improvement in a very specific edge case (it's more likely to have a
mixed time-cutoff vs. task-log-file boundary than that those are
aligned)
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
by not bubbling up most errors, and continuing on. this avoids that we
stop cleaning up because e.g. one directory was missing.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
and move the comment from the local io_bail in pbs-client/src/pxar/fuse.rs
to the only use
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
the compression utilities live there now
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
- imported pbs-api-types/src/common_regex.rs from old proxmox crate
- use hex crate to generate/parse hex digest
- remove all reference to proxmox crate (use proxmox-sys and
proxmox-serde instead)
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
our ui expects a map here with 'field: "error"'. This way it can mark
the relevant field as invalid and correctly shows the complete error
message
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
this is a helper that removes task log files that are not referenced
by the task archive anymore
it gets the oldest task archive file, gets the first endtime (the
oldest) and removes all files in the taskdir where the mtime is older
than that
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
else it's rather to subtle and not a nice interface considering that
we only want to have a thin wrapper for sd_notify_barrier..
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
until now, we manually polled the systemd service state during a reload
so that the sd_notify messages get processed in the correct order
(RELOAD(old) -> MAINPID(old) -> READY(new))
with systemd >= 246 there is now 'sd_notify_barrier' which
blocks until systemd processed all prior messages
with that change, the daemon does not need to know the service name anymore
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
