feat: support persist cache task when scheduler replicates task (#953)

Signed-off-by: Gaius <[email protected]>

Cargo.toml

@@ -12,7 +12,7 @@ members = [
 ]
 
 [workspace.package]
-version = "0.2.5"
+version = "0.2.6"
 authors = ["The Dragonfly Developers"]
 homepage = "https://d7y.io/"
 repository = "https://github.com/dragonflyoss/client.git"
@@ -22,15 +22,15 @@ readme = "README.md"
 edition = "2021"
 
 [workspace.dependencies]
-dragonfly-client = { path = "dragonfly-client", version = "0.2.5" }
-dragonfly-client-core = { path = "dragonfly-client-core", version = "0.2.5" }
-dragonfly-client-config = { path = "dragonfly-client-config", version = "0.2.5" }
-dragonfly-client-storage = { path = "dragonfly-client-storage", version = "0.2.5" }
-dragonfly-client-backend = { path = "dragonfly-client-backend", version = "0.2.5" }
-dragonfly-client-util = { path = "dragonfly-client-util", version = "0.2.5" }
-dragonfly-client-init = { path = "dragonfly-client-init", version = "0.2.5" }
+dragonfly-client = { path = "dragonfly-client", version = "0.2.6" }
+dragonfly-client-core = { path = "dragonfly-client-core", version = "0.2.6" }
+dragonfly-client-config = { path = "dragonfly-client-config", version = "0.2.6" }
+dragonfly-client-storage = { path = "dragonfly-client-storage", version = "0.2.6" }
+dragonfly-client-backend = { path = "dragonfly-client-backend", version = "0.2.6" }
+dragonfly-client-util = { path = "dragonfly-client-util", version = "0.2.6" }
+dragonfly-client-init = { path = "dragonfly-client-init", version = "0.2.6" }
 thiserror = "1.0"
-dragonfly-api = "=2.1.16"
+dragonfly-api = "=2.1.23"
 reqwest = { version = "0.12.4", features = [
     "stream",
     "native-tls",
@@ -102,6 +102,7 @@ tempfile = "3.14.0"
 tokio-rustls = "0.25.0-alpha.4"
 serde_json = "1.0.137"
 lru = "0.12.5"
+fs2 = "0.4.3"
 
 [profile.release]
 opt-level = "z"

dragonfly-client-config/src/dfdaemon.rs

@@ -155,7 +155,7 @@ fn default_scheduler_announce_interval() -> Duration {
 /// default_scheduler_schedule_timeout is the default timeout for scheduling.
 #[inline]
 fn default_scheduler_schedule_timeout() -> Duration {
-    Duration::from_secs(10)
+    Duration::from_secs(180)
 }
 
 /// default_dynconfig_refresh_interval is the default interval to refresh dynamic configuration from manager.

dragonfly-client-core/src/error/mod.rs

@@ -42,6 +42,10 @@ pub enum DFError {
     #[error{"hashring {0} is failed"}]
     HashRing(String),
 
+    /// NoSpace is the error when there is no space left on device.
+    #[error("no space left on device: {0}")]
+    NoSpace(String),
+
     /// HostNotFound is the error when the host is not found.
     #[error{"host {0} not found"}]
     HostNotFound(String),

dragonfly-client-storage/Cargo.toml

@@ -25,6 +25,7 @@ tokio-util.workspace = true
 sha2.workspace = true
 crc.workspace = true
 base16ct.workspace = true
+fs2.workspace = true
 num_cpus = "1.0"
 bincode = "1.3.3"
 rayon = "1.10.0"

dragonfly-client-storage/src/content.rs

@@ -84,6 +84,33 @@ impl Content {
         Ok(Content { config, dir })
     }
 
+    /// available_space returns the available space of the disk.
+    pub fn available_space(&self) -> Result<u64> {
+        let stat = fs2::statvfs(&self.dir)?;
+        Ok(stat.available_space())
+    }
+
+    /// total_space returns the total space of the disk.
+    pub fn total_space(&self) -> Result<u64> {
+        let stat = fs2::statvfs(&self.dir)?;
+        Ok(stat.total_space())
+    }
+
+    /// has_enough_space checks if the storage has enough space to store the content.
+    pub fn has_enough_space(&self, content_length: u64) -> Result<bool> {
+        let available_space = self.available_space()?;
+        if available_space < content_length {
+            warn!(
+                "not enough space to store the persistent cache task: available_space={}, content_length={}",
+                available_space, content_length
+            );
+
+            return Ok(false);
+        }
+
+        Ok(true)
+    }
+
     /// hard_link_or_copy_task hard links or copies the task content to the destination.
     #[instrument(skip_all)]
     pub async fn hard_link_or_copy_task(

dragonfly-client-storage/src/lib.rs

@@ -24,7 +24,7 @@ use std::path::PathBuf;
 use std::sync::Arc;
 use std::time::Duration;
 use tokio::io::AsyncRead;
-use tracing::{debug, error, instrument};
+use tracing::{debug, error, instrument, warn};
 
 pub mod content;
 pub mod metadata;
@@ -59,6 +59,21 @@ impl Storage {
         })
     }
 
+    /// total_space returns the total space of the disk.
+    pub fn total_space(&self) -> Result<u64> {
+        self.content.total_space()
+    }
+
+    /// available_space returns the available space of the disk.
+    pub fn available_space(&self) -> Result<u64> {
+        self.content.available_space()
+    }
+
+    /// has_enough_space checks if the storage has enough space to store the content.
+    pub fn has_enough_space(&self, content_length: u64) -> Result<bool> {
+        self.content.has_enough_space(content_length)
+    }
+
     /// hard_link_or_copy_task hard links or copies the task content to the destination.
     #[instrument(skip_all)]
     pub async fn hard_link_or_copy_task(
@@ -245,6 +260,12 @@ impl Storage {
         self.metadata.get_persistent_cache_task(id)
     }
 
+    /// persist_persistent_cache_task persists the persistent cache task metadata.
+    #[instrument(skip_all)]
+    pub fn persist_persistent_cache_task(&self, id: &str) -> Result<metadata::PersistentCacheTask> {
+        self.metadata.persist_persistent_cache_task(id)
+    }
+
     /// is_persistent_cache_task_exists returns whether the persistent cache task exists.
     #[instrument(skip_all)]
     pub fn is_persistent_cache_task_exists(&self, id: &str) -> Result<bool> {

dragonfly-client-storage/src/metadata.rs

@@ -700,6 +700,22 @@ impl<E: StorageEngineOwned> Metadata<E> {
         Ok(task)
     }
 
+    /// persist_persistent_cache_task persists the persistent cache task metadata.
+    #[instrument(skip_all)]
+    pub fn persist_persistent_cache_task(&self, id: &str) -> Result<PersistentCacheTask> {
+        let task = match self.db.get::<PersistentCacheTask>(id.as_bytes())? {
+            Some(mut task) => {
+                task.persistent = true;
+                task.updated_at = Utc::now().naive_utc();
+                task
+            }
+            None => return Err(Error::TaskNotFound(id.to_string())),
+        };
+
+        self.db.put(id.as_bytes(), &task)?;
+        Ok(task)
+    }
+
     /// get_persistent_cache_task gets the persistent cache task metadata.
     #[instrument(skip_all)]
     pub fn get_persistent_cache_task(&self, id: &str) -> Result<Option<PersistentCacheTask>> {

dragonfly-client-storage/src/storage_engine/rocksdb.rs

@@ -117,9 +117,7 @@ impl RocksdbStorageEngine {
 
         // If the storage is kept, open the db and drop the unused column families.
         // Otherwise, destroy the db.
-        if keep {
-            drop_unused_cfs(&dir);
-        } else {
+        if !keep {
             rocksdb::DB::destroy(&options, &dir).unwrap_or_else(|err| {
                 warn!("destroy {:?} failed: {}", dir, err);
             });
@@ -259,24 +257,3 @@ where
     db.cf_handle(cf_name)
         .ok_or_else(|| Error::ColumnFamilyNotFound(cf_name.to_string()))
 }
-
-/// drop_unused_cfs drops the unused column families.
-fn drop_unused_cfs(dir: &Path) {
-    let old_cf_names = vec!["task", "piece", "cache_task"];
-    let unused_cf_names = vec!["cache_task"];
-
-    let mut db = match rocksdb::DB::open_cf(&rocksdb::Options::default(), dir, old_cf_names) {
-        Ok(db) => db,
-        Err(err) => {
-            warn!("open cf failed: {}", err);
-            return;
-        }
-    };
-
-    for cf_name in unused_cf_names {
-        match db.drop_cf(cf_name) {
-            Ok(_) => info!("drop cf [{}] success", cf_name),
-            Err(err) => warn!("drop cf [{}] failed: {}", cf_name, err),
-        }
-    }
-}

dragonfly-client/Cargo.toml

@@ -64,6 +64,7 @@ percent-encoding.workspace = true
 tokio-rustls.workspace = true
 serde_json.workspace = true
 lru.workspace = true
+fs2.workspace = true
 lazy_static = "1.5"
 tracing-log = "0.2"
 tracing-subscriber = { version = "0.3", features = ["env-filter", "time", "chrono"] }
@@ -81,7 +82,6 @@ sysinfo = "0.32.1"
 tower = "0.4.13"
 indicatif = "0.17.9"
 dashmap = "6.1.0"
-fs2 = "0.4.3"
 hashring = "0.3.6"
 fslock = "0.2.1"
 leaky-bucket = "1.1.2"

dragonfly-client/src/bin/dfcache/import.rs

@@ -37,6 +37,13 @@ pub struct ImportCommand {
     #[arg(help = "Specify the path of the file to import")]
     path: PathBuf,
 
+    #[arg(
+        long = "id",
+        required = false,
+        help = "Specify the id of the persistent cache task, its length must be 64 bytes. If id is none, dfdaemon will generate the new task id based on the file content, tag and application by wyhash algorithm."
+    )]
+    id: Option<String>,
+
     #[arg(
         long = "persistent-replica-count",
         default_value_t = default_dfcache_persistent_replica_count(),
@@ -321,6 +328,7 @@ impl ImportCommand {
 
         let persistent_cache_task = dfdaemon_download_client
             .upload_persistent_cache_task(UploadPersistentCacheTaskRequest {
+                task_id: self.id.clone(),
                 path: self.path.clone().into_os_string().into_string().unwrap(),
                 persistent_replica_count: self.persistent_replica_count,
                 tag: self.tag.clone(),
@@ -341,6 +349,15 @@ impl ImportCommand {
 
     /// validate_args validates the command line arguments.
     fn validate_args(&self) -> Result<()> {
+        if let Some(id) = self.id.as_ref() {
+            if id.len() != 64 {
+                return Err(Error::ValidationError(format!(
+                    "id length must be 64 bytes, but got {}",
+                    id.len()
+                )));
+            }
+        }
+
         if self.path.is_dir() {
             return Err(Error::ValidationError(format!(
                 "path {} is a directory",

dragonfly-client/src/bin/dfcache/main.rs

@@ -26,7 +26,6 @@ use tracing::Level;
 
 pub mod export;
 pub mod import;
-pub mod remove;
 pub mod stat;
 
 #[derive(Debug, Parser)]
@@ -83,15 +82,6 @@ pub enum Command {
         long_about = "Stat a file in Dragonfly P2P network by task ID. If stat successfully, it will return the file information."
     )]
     Stat(stat::StatCommand),
-
-    #[command(
-        name = "rm",
-        author,
-        version,
-        about = "Remove a file from Dragonfly P2P network",
-        long_about = "Remove the P2P cache in Dragonfly P2P network by task ID."
-    )]
-    Remove(remove::RemoveCommand),
 }
 
 /// Implement the execute for Command.
@@ -102,7 +92,6 @@ impl Command {
             Self::Import(cmd) => cmd.execute().await,
             Self::Export(cmd) => cmd.execute().await,
             Self::Stat(cmd) => cmd.execute().await,
-            Self::Remove(cmd) => cmd.execute().await,
         }
     }
 }