From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) by lore.proxmox.com (Postfix) with ESMTPS id 6B3D21FF398 for ; Mon, 27 May 2024 16:34:26 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 4BAF65AD2; Mon, 27 May 2024 16:34:30 +0200 (CEST) From: Christian Ebner To: pbs-devel@lists.proxmox.com Date: Mon, 27 May 2024 16:32:34 +0200 Message-Id: <20240527143323.456002-21-c.ebner@proxmox.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240527143323.456002-1-c.ebner@proxmox.com> References: <20240527143323.456002-1-c.ebner@proxmox.com> MIME-Version: 1.0 X-SPAM-LEVEL: Spam detection results: 0 AWL 0.030 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record T_SCC_BODY_TEXT_LINE -0.01 - Subject: [pbs-devel] [PATCH v7 proxmox-backup 20/69] client: pxar: optionally split metadata and payload streams X-BeenThere: pbs-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox Backup Server development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Proxmox Backup Server development discussion Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: pbs-devel-bounces@lists.proxmox.com Sender: "pbs-devel" ... and attach the split payload writer variant to the pxar archive creation. By this, metadata and payload data will create different dynamic indexes, allowing to lookup and reuse payload chunks without the additional overhead of the pxar archive's metadata. For now this functionality remains disabled and will be enabled in a later patch once the logic for reusing the payload chunks is in place. Signed-off-by: Christian Ebner --- changes since version 6: - adapt to new PxarVariant pxar interface type pbs-client/src/pxar_backup_stream.rs | 51 ++++++++++++++----- proxmox-backup-client/src/main.rs | 75 +++++++++++++++++++++++++--- 2 files changed, 105 insertions(+), 21 deletions(-) diff --git a/pbs-client/src/pxar_backup_stream.rs b/pbs-client/src/pxar_backup_stream.rs index 8dc3fd088..3541eddb5 100644 --- a/pbs-client/src/pxar_backup_stream.rs +++ b/pbs-client/src/pxar_backup_stream.rs @@ -42,21 +42,37 @@ impl PxarBackupStream { dir: Dir, catalog: Arc>>, options: crate::pxar::PxarCreateOptions, - ) -> Result { - let (tx, rx) = std::sync::mpsc::sync_channel(10); - + separate_payload_stream: bool, + ) -> Result<(Self, Option), Error> { let buffer_size = 256 * 1024; - let error = Arc::new(Mutex::new(None)); - let error2 = Arc::clone(&error); - let handler = async move { - let writer = TokioWriterAdapter::new(std::io::BufWriter::with_capacity( + let (tx, rx) = std::sync::mpsc::sync_channel(10); + let writer = TokioWriterAdapter::new(std::io::BufWriter::with_capacity( + buffer_size, + StdChannelWriter::new(tx), + )); + let writer = pxar::encoder::sync::StandardWriter::new(writer); + + let (writer, payload_rx) = if separate_payload_stream { + let (tx, rx) = std::sync::mpsc::sync_channel(10); + let payload_writer = TokioWriterAdapter::new(std::io::BufWriter::with_capacity( buffer_size, StdChannelWriter::new(tx), )); + ( + pxar::PxarVariant::Split( + writer, + pxar::encoder::sync::StandardWriter::new(payload_writer), + ), + Some(rx), + ) + } else { + (pxar::PxarVariant::Unified(writer), None) + }; - let writer = - pxar::PxarVariant::Unified(pxar::encoder::sync::StandardWriter::new(writer)); + let error = Arc::new(Mutex::new(None)); + let error2 = Arc::clone(&error); + let handler = async move { if let Err(err) = crate::pxar::create_archive( dir, PxarWriters::new(writer, Some(catalog)), @@ -78,21 +94,30 @@ impl PxarBackupStream { let future = Abortable::new(handler, registration); tokio::spawn(future); - Ok(Self { + let backup_stream = Self { + rx: Some(rx), + handle: Some(handle.clone()), + error: Arc::clone(&error), + }; + + let backup_payload_stream = payload_rx.map(|rx| Self { rx: Some(rx), handle: Some(handle), error, - }) + }); + + Ok((backup_stream, backup_payload_stream)) } pub fn open( dirname: &Path, catalog: Arc>>, options: crate::pxar::PxarCreateOptions, - ) -> Result { + separate_payload_stream: bool, + ) -> Result<(Self, Option), Error> { let dir = nix::dir::Dir::open(dirname, OFlag::O_DIRECTORY, Mode::empty())?; - Self::new(dir, catalog, options) + Self::new(dir, catalog, options, separate_payload_stream) } } diff --git a/proxmox-backup-client/src/main.rs b/proxmox-backup-client/src/main.rs index ad2bc5a66..25556d672 100644 --- a/proxmox-backup-client/src/main.rs +++ b/proxmox-backup-client/src/main.rs @@ -187,18 +187,24 @@ async fn backup_directory>( client: &BackupWriter, dir_path: P, archive_name: &str, + payload_target: Option<&str>, chunk_size: Option, catalog: Arc>>>>, pxar_create_options: pbs_client::pxar::PxarCreateOptions, upload_options: UploadOptions, -) -> Result { +) -> Result<(BackupStats, Option), Error> { if upload_options.fixed_size.is_some() { bail!("cannot backup directory with fixed chunk size!"); } - let pxar_stream = PxarBackupStream::open(dir_path.as_ref(), catalog, pxar_create_options)?; - let mut chunk_stream = ChunkStream::new(pxar_stream, chunk_size); + let (pxar_stream, payload_stream) = PxarBackupStream::open( + dir_path.as_ref(), + catalog, + pxar_create_options, + payload_target.is_some(), + )?; + let mut chunk_stream = ChunkStream::new(pxar_stream, chunk_size); let (tx, rx) = mpsc::channel(10); // allow to buffer 10 chunks let stream = ReceiverStream::new(rx).map_err(Error::from); @@ -210,11 +216,36 @@ async fn backup_directory>( } }); - let stats = client - .upload_stream(archive_name, stream, upload_options) - .await?; + let stats = client.upload_stream(archive_name, stream, upload_options.clone()); - Ok(stats) + if let Some(payload_stream) = payload_stream { + let payload_target = payload_target + .ok_or_else(|| format_err!("got payload stream, but no target archive name"))?; + + let mut payload_chunk_stream = ChunkStream::new(payload_stream, chunk_size); + let (payload_tx, payload_rx) = mpsc::channel(10); // allow to buffer 10 chunks + let stream = ReceiverStream::new(payload_rx).map_err(Error::from); + + // spawn payload chunker inside a separate task so that it can run parallel + tokio::spawn(async move { + while let Some(v) = payload_chunk_stream.next().await { + let _ = payload_tx.send(v).await; + } + }); + + let payload_stats = client.upload_stream(&payload_target, stream, upload_options); + + match futures::join!(stats, payload_stats) { + (Ok(stats), Ok(payload_stats)) => Ok((stats, Some(payload_stats))), + (Err(err), Ok(_)) => Err(format_err!("upload failed: {err}")), + (Ok(_), Err(err)) => Err(format_err!("upload failed: {err}")), + (Err(err), Err(payload_err)) => { + Err(format_err!("upload failed: {err} - {payload_err}")) + } + } + } else { + Ok((stats.await?, None)) + } } async fn backup_image>( @@ -985,6 +1016,23 @@ async fn create_backup( manifest.add_file(target, stats.size, stats.csum, crypto.mode)?; } (BackupSpecificationType::PXAR, false) => { + let metadata_mode = false; // Until enabled via param + + let target_base = if let Some(base) = target_base.strip_suffix(".pxar") { + base.to_string() + } else { + bail!("unexpected suffix in target: {target_base}"); + }; + + let (target, payload_target) = if metadata_mode { + ( + format!("{target_base}.mpxar.{extension}"), + Some(format!("{target_base}.ppxar.{extension}")), + ) + } else { + (target, None) + }; + // start catalog upload on first use if catalog.is_none() { let catalog_upload_res = @@ -1015,16 +1063,27 @@ async fn create_backup( ..UploadOptions::default() }; - let stats = backup_directory( + let (stats, payload_stats) = backup_directory( &client, &filename, &target, + payload_target.as_deref(), chunk_size_opt, catalog.clone(), pxar_options, upload_options, ) .await?; + + if let Some(payload_stats) = payload_stats { + manifest.add_file( + payload_target + .ok_or_else(|| format_err!("missing payload target archive"))?, + payload_stats.size, + payload_stats.csum, + crypto.mode, + )?; + } manifest.add_file(target, stats.size, stats.csum, crypto.mode)?; catalog.lock().unwrap().end_directory()?; } -- 2.39.2 _______________________________________________ pbs-devel mailing list pbs-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pbs-devel