fix: remove path label for cache store (#4336)

* fix: remove path label for cache store

* fix: ignore path label for intermediatemanager

* refactor: remove unused object store

src/common/datasource/src/object_store/fs.rs

@@ -31,7 +31,7 @@ pub fn build_fs_backend(root: &str) -> Result<ObjectStore> {
                 .expect("input error level must be valid"),
         )
         .layer(object_store::layers::TracingLayer)
-        .layer(object_store::layers::PrometheusMetricsLayer)
+        .layer(object_store::layers::PrometheusMetricsLayer::new(true))
         .finish();
     Ok(object_store)
 }

src/common/datasource/src/object_store/s3.rs

@@ -94,7 +94,7 @@ pub fn build_s3_backend(
                 .expect("input error level must be valid"),
         )
         .layer(object_store::layers::TracingLayer)
-        .layer(object_store::layers::PrometheusMetricsLayer)
+        .layer(object_store::layers::PrometheusMetricsLayer::new(true))
         .finish())
 }
 

src/datanode/src/store.rs

@@ -60,7 +60,7 @@ pub(crate) async fn new_object_store(
         object_store
     };
 
-    let store = with_instrument_layers(object_store);
+    let store = with_instrument_layers(object_store, true);
     Ok(store)
 }
 

src/mito2/src/access_layer.rs

@@ -208,18 +208,15 @@ pub(crate) struct SstWriteRequest {
     pub(crate) fulltext_index_config: FulltextIndexConfig,
 }
 
-/// Creates a fs object store with atomic write dir.
-pub(crate) async fn new_fs_object_store(root: &str) -> Result<ObjectStore> {
+pub(crate) async fn new_fs_cache_store(root: &str) -> Result<ObjectStore> {
     let atomic_write_dir = join_dir(root, ".tmp/");
     clean_dir(&atomic_write_dir).await?;
 
     let mut builder = Fs::default();
     builder.root(root).atomic_write_dir(&atomic_write_dir);
-    let object_store = ObjectStore::new(builder).context(OpenDalSnafu)?.finish();
+    let store = ObjectStore::new(builder).context(OpenDalSnafu)?.finish();
 
-    // Add layers.
-    let object_store = with_instrument_layers(object_store);
-    Ok(object_store)
+    Ok(with_instrument_layers(store, false))
 }
 
 /// Clean the directory.

src/mito2/src/cache/write_cache.rs

@@ -24,7 +24,7 @@ use object_store::manager::ObjectStoreManagerRef;
 use object_store::ObjectStore;
 use snafu::ResultExt;
 
-use crate::access_layer::{new_fs_object_store, SstWriteRequest};
+use crate::access_layer::{new_fs_cache_store, SstWriteRequest};
 use crate::cache::file_cache::{FileCache, FileCacheRef, FileType, IndexKey, IndexValue};
 use crate::error::{self, Result};
 use crate::metrics::{FLUSH_ELAPSED, UPLOAD_BYTES_TOTAL};
@@ -86,7 +86,7 @@ impl WriteCache {
     ) -> Result<Self> {
         info!("Init write cache on {cache_dir}, capacity: {cache_capacity}");
 
-        let local_store = new_fs_object_store(cache_dir).await?;
+        let local_store = new_fs_cache_store(cache_dir).await?;
         Self::new(
             local_store,
             object_store_manager,

src/mito2/src/sst/index/intermediate.rs

@@ -19,7 +19,7 @@ use object_store::util::{self, normalize_dir};
 use store_api::storage::{ColumnId, RegionId};
 use uuid::Uuid;
 
-use crate::access_layer::new_fs_object_store;
+use crate::access_layer::new_fs_cache_store;
 use crate::error::Result;
 use crate::sst::file::FileId;
 use crate::sst::index::store::InstrumentedStore;
@@ -37,7 +37,7 @@ impl IntermediateManager {
     /// Create a new `IntermediateManager` with the given root path.
     /// It will clean up all garbage intermediate files from previous runs.
     pub async fn init_fs(aux_path: impl AsRef<str>) -> Result<Self> {
-        let store = new_fs_object_store(&normalize_dir(aux_path.as_ref())).await?;
+        let store = new_fs_cache_store(&normalize_dir(aux_path.as_ref())).await?;
         let store = InstrumentedStore::new(store);
 
         // Remove all garbage intermediate files from previous runs.

src/object-store/src/layers/prometheus.rs

@@ -84,7 +84,15 @@ fn increment_errors_total(op: Operation, kind: ErrorKind) {
 ///
 /// The metric buckets for these histograms are automatically generated based on the `exponential_buckets(0.01, 2.0, 16)` configuration.
 #[derive(Default, Debug, Clone)]
-pub struct PrometheusMetricsLayer;
+pub struct PrometheusMetricsLayer {
+    pub path_label: bool,
+}
+
+impl PrometheusMetricsLayer {
+    pub fn new(path_label: bool) -> Self {
+        Self { path_label }
+    }
+}
 
 impl<A: Access> Layer<A> for PrometheusMetricsLayer {
     type LayeredAccess = PrometheusAccess<A>;
@@ -96,6 +104,7 @@ impl<A: Access> Layer<A> for PrometheusMetricsLayer {
         PrometheusAccess {
             inner,
             scheme: scheme.to_string(),
+            path_label: self.path_label,
         }
     }
 }
@@ -104,6 +113,17 @@ impl<A: Access> Layer<A> for PrometheusMetricsLayer {
 pub struct PrometheusAccess<A: Access> {
     inner: A,
     scheme: String,
+    path_label: bool,
+}
+
+impl<A: Access> PrometheusAccess<A> {
+    fn get_path_label<'a>(&self, path: &'a str) -> &'a str {
+        if self.path_label {
+            extract_parent_path(path)
+        } else {
+            ""
+        }
+    }
 }
 
 impl<A: Access> Debug for PrometheusAccess<A> {
@@ -128,7 +148,7 @@ impl<A: Access> LayeredAccess for PrometheusAccess<A> {
     }
 
     async fn create_dir(&self, path: &str, args: OpCreateDir) -> Result<RpCreateDir> {
-        let path_label = extract_parent_path(path);
+        let path_label = self.get_path_label(path);
         REQUESTS_TOTAL
             .with_label_values(&[&self.scheme, Operation::CreateDir.into_static(), path_label])
             .inc();
@@ -146,7 +166,7 @@ impl<A: Access> LayeredAccess for PrometheusAccess<A> {
     }
 
     async fn read(&self, path: &str, args: OpRead) -> Result<(RpRead, Self::Reader)> {
-        let path_label = extract_parent_path(path);
+        let path_label = self.get_path_label(path);
         REQUESTS_TOTAL
             .with_label_values(&[&self.scheme, Operation::Read.into_static(), path_label])
             .inc();
@@ -176,7 +196,7 @@ impl<A: Access> LayeredAccess for PrometheusAccess<A> {
     }
 
     async fn write(&self, path: &str, args: OpWrite) -> Result<(RpWrite, Self::Writer)> {
-        let path_label = extract_parent_path(path);
+        let path_label = self.get_path_label(path);
         REQUESTS_TOTAL
             .with_label_values(&[&self.scheme, Operation::Write.into_static(), path_label])
             .inc();
@@ -206,7 +226,7 @@ impl<A: Access> LayeredAccess for PrometheusAccess<A> {
     }
 
     async fn stat(&self, path: &str, args: OpStat) -> Result<RpStat> {
-        let path_label = extract_parent_path(path);
+        let path_label = self.get_path_label(path);
         REQUESTS_TOTAL
             .with_label_values(&[&self.scheme, Operation::Stat.into_static(), path_label])
             .inc();
@@ -223,7 +243,7 @@ impl<A: Access> LayeredAccess for PrometheusAccess<A> {
     }
 
     async fn delete(&self, path: &str, args: OpDelete) -> Result<RpDelete> {
-        let path_label = extract_parent_path(path);
+        let path_label = self.get_path_label(path);
         REQUESTS_TOTAL
             .with_label_values(&[&self.scheme, Operation::Delete.into_static(), path_label])
             .inc();
@@ -241,7 +261,7 @@ impl<A: Access> LayeredAccess for PrometheusAccess<A> {
     }
 
     async fn list(&self, path: &str, args: OpList) -> Result<(RpList, Self::Lister)> {
-        let path_label = extract_parent_path(path);
+        let path_label = self.get_path_label(path);
         REQUESTS_TOTAL
             .with_label_values(&[&self.scheme, Operation::List.into_static(), path_label])
             .inc();
@@ -277,7 +297,7 @@ impl<A: Access> LayeredAccess for PrometheusAccess<A> {
     }
 
     async fn presign(&self, path: &str, args: OpPresign) -> Result<RpPresign> {
-        let path_label = extract_parent_path(path);
+        let path_label = self.get_path_label(path);
         REQUESTS_TOTAL
             .with_label_values(&[&self.scheme, Operation::Presign.into_static(), path_label])
             .inc();
@@ -295,7 +315,7 @@ impl<A: Access> LayeredAccess for PrometheusAccess<A> {
     }
 
     fn blocking_create_dir(&self, path: &str, args: OpCreateDir) -> Result<RpCreateDir> {
-        let path_label = extract_parent_path(path);
+        let path_label = self.get_path_label(path);
         REQUESTS_TOTAL
             .with_label_values(&[
                 &self.scheme,
@@ -322,7 +342,7 @@ impl<A: Access> LayeredAccess for PrometheusAccess<A> {
     }
 
     fn blocking_read(&self, path: &str, args: OpRead) -> Result<(RpRead, Self::BlockingReader)> {
-        let path_label = extract_parent_path(path);
+        let path_label = self.get_path_label(path);
         REQUESTS_TOTAL
             .with_label_values(&[
                 &self.scheme,
@@ -363,7 +383,7 @@ impl<A: Access> LayeredAccess for PrometheusAccess<A> {
     }
 
     fn blocking_write(&self, path: &str, args: OpWrite) -> Result<(RpWrite, Self::BlockingWriter)> {
-        let path_label = extract_parent_path(path);
+        let path_label = self.get_path_label(path);
         REQUESTS_TOTAL
             .with_label_values(&[
                 &self.scheme,
@@ -404,7 +424,7 @@ impl<A: Access> LayeredAccess for PrometheusAccess<A> {
     }
 
     fn blocking_stat(&self, path: &str, args: OpStat) -> Result<RpStat> {
-        let path_label = extract_parent_path(path);
+        let path_label = self.get_path_label(path);
         REQUESTS_TOTAL
             .with_label_values(&[
                 &self.scheme,
@@ -429,7 +449,7 @@ impl<A: Access> LayeredAccess for PrometheusAccess<A> {
     }
 
     fn blocking_delete(&self, path: &str, args: OpDelete) -> Result<RpDelete> {
-        let path_label = extract_parent_path(path);
+        let path_label = self.get_path_label(path);
         REQUESTS_TOTAL
             .with_label_values(&[
                 &self.scheme,
@@ -455,7 +475,7 @@ impl<A: Access> LayeredAccess for PrometheusAccess<A> {
     }
 
     fn blocking_list(&self, path: &str, args: OpList) -> Result<(RpList, Self::BlockingLister)> {
-        let path_label = extract_parent_path(path);
+        let path_label = self.get_path_label(path);
         REQUESTS_TOTAL
             .with_label_values(&[
                 &self.scheme,

src/object-store/src/util.rs

@@ -138,7 +138,7 @@ pub(crate) fn extract_parent_path(path: &str) -> &str {
 }
 
 /// Attaches instrument layers to the object store.
-pub fn with_instrument_layers(object_store: ObjectStore) -> ObjectStore {
+pub fn with_instrument_layers(object_store: ObjectStore, path_label: bool) -> ObjectStore {
     object_store
         .layer(
             LoggingLayer::default()
@@ -148,7 +148,7 @@ pub fn with_instrument_layers(object_store: ObjectStore) -> ObjectStore {
                 .expect("input error level must be valid"),
         )
         .layer(TracingLayer)
-        .layer(PrometheusMetricsLayer)
+        .layer(PrometheusMetricsLayer::new(path_label))
 }
 
 #[cfg(test)]