From: Thomas Lamprecht <t.lamprecht@proxmox.com>
To: Proxmox Backup Server development discussion
<pbs-devel@lists.proxmox.com>,
Stefan Reiter <s.reiter@proxmox.com>
Subject: Re: [pbs-devel] [PATCH proxmox-backup 5/9] file-restore-daemon: work around tokio DuplexStream bug
Date: Thu, 6 May 2021 20:12:58 +0200 [thread overview]
Message-ID: <07c15982-0adb-d3b6-02c3-560969df1779@proxmox.com> (raw)
In-Reply-To: <20210506152624.12605-6-s.reiter@proxmox.com>
On 06.05.21 17:26, Stefan Reiter wrote:
> See this PR for more info: https://github.com/tokio-rs/tokio/pull/3756
>
> As a workaround use a pair of connected unix sockets - this obviously
> incurs some overhead, albeit not measureable on my machine. Once tokio
> includes the fix we can go back to a DuplexStream for performance and
> simplicity.
>
now that it got merged, do we want to cherry-pick this or await inclusion
in stable instead of applying this workaround?
CC'ing Fabian as our tokio (or better said rust) packaging wizard
> Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
> ---
>
> Thanks to @Wolfgang for helping debug this!
>
> src/bin/proxmox_restore_daemon/api.rs | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/src/bin/proxmox_restore_daemon/api.rs b/src/bin/proxmox_restore_daemon/api.rs
> index f1d601ce..5aeb69f3 100644
> --- a/src/bin/proxmox_restore_daemon/api.rs
> +++ b/src/bin/proxmox_restore_daemon/api.rs
> @@ -275,7 +275,11 @@ fn extract(
> bail!("file or directory {:?} does not exist", path);
> }
>
> - let (mut writer, reader) = tokio::io::duplex(1024 * 64);
> + // FIXME: DuplexStream is currently broken and doesn't wake pending writers on close, i.e.
> + // this doesn't drop the WatchdogInhibitor if we encounter an error (client aborts, etc...)
> + // see: https://github.com/tokio-rs/tokio/pull/3756
> + // let (mut writer, reader) = tokio::io::duplex(1024 * 64);
> + let (mut writer, reader) = tokio::net::UnixStream::pair()?;
>
> if pxar {
> tokio::spawn(async move {
>
next prev parent reply other threads:[~2021-05-06 18:13 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-06 15:26 [pbs-devel] [PATCH 0/9] Debug mode and smaller fixes for single file restore Stefan Reiter
2021-05-06 15:26 ` [pbs-devel] [PATCH proxmox-backup 1/9] file-restore: add debug mode with serial access Stefan Reiter
2021-05-06 15:26 ` [pbs-devel] [PATCH proxmox-backup 2/9] file-restore: try to kill VM when stale Stefan Reiter
2021-05-07 7:04 ` [pbs-devel] applied: " Thomas Lamprecht
2021-05-06 15:26 ` [pbs-devel] [PATCH proxmox-backup 3/9] file-restore: add more RAM for VMs with many drives or debug Stefan Reiter
2021-05-07 7:04 ` [pbs-devel] applied: " Thomas Lamprecht
2021-05-06 15:26 ` [pbs-devel] [PATCH proxmox-backup 4/9] file-restore: support more drives Stefan Reiter
2021-05-07 7:04 ` [pbs-devel] applied: " Thomas Lamprecht
2021-05-06 15:26 ` [pbs-devel] [PATCH proxmox-backup 5/9] file-restore-daemon: work around tokio DuplexStream bug Stefan Reiter
2021-05-06 18:12 ` Thomas Lamprecht [this message]
2021-05-07 7:26 ` Fabian Grünbichler
2021-05-06 15:26 ` [pbs-devel] [PATCH proxmox-backup 6/9] file-restore-daemon: watchdog: add inhibit for long downloads Stefan Reiter
2021-05-06 15:26 ` [pbs-devel] [PATCH proxmox-backup 7/9] file-restore-daemon: limit concurrent download calls Stefan Reiter
2021-05-06 15:26 ` [pbs-devel] [PATCH proxmox-backup-restore-image 8/9] kernel: power off on panic Stefan Reiter
2021-05-06 15:26 ` [pbs-devel] [PATCH proxmox-backup-restore-image 9/9] add debug initramfs as seperate package Stefan Reiter
2021-05-06 18:07 ` Thomas Lamprecht
2021-05-25 11:50 ` [pbs-devel] applied-series: [PATCH 0/9] Debug mode and smaller fixes for single file restore Thomas Lamprecht
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