feat: track channels with query context and w/rcu (#4448)

* feat: add source channel to meter recorders * feat: provide channel for query context * fix: testing and extension get for query context * chore: revert cargo toml structure changes * fix: querycontext modification for prometheus and pipeline * chore: switch git dependency to main branches * chore: remove TODO * refactor: rename other to unknown --------- Co-authored-by: shuiyisong <113876041+shuiyisong@users.noreply.github.com>
2026-05-20 15:00:40 +00:00 · 2024-07-31 15:30:50 +08:00
parent dd23d47743
commit b741a7181b
21 changed files with 193 additions and 96 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4234,7 +4234,7 @@ checksum = "d2fabcfbdc87f4758337ca535fb41a6d701b65693ce38287d856d1674551ec9b"
 [[package]]
 name = "greptime-proto"
 version = "0.1.0"
-source = "git+https://github.com/GreptimeTeam/greptime-proto.git?rev=7ca323090b3ae8faf2c15036b7f41b7c5225cf5f#7ca323090b3ae8faf2c15036b7f41b7c5225cf5f"
+source = "git+https://github.com/GreptimeTeam/greptime-proto.git?rev=c437b55725b7f5224fe9d46db21072b4a682ee4b#c437b55725b7f5224fe9d46db21072b4a682ee4b"
 dependencies = [
 "prost 0.12.6",
 "serde",
@@ -6155,7 +6155,7 @@ dependencies = [
 [[package]]
 name = "meter-core"
 version = "0.1.0"
-source = "git+https://github.com/GreptimeTeam/greptime-meter.git?rev=80b72716dcde47ec4161478416a5c6c21343364d#80b72716dcde47ec4161478416a5c6c21343364d"
+source = "git+https://github.com/GreptimeTeam/greptime-meter.git?rev=049171eb16cb4249d8099751a0c46750d1fe88e7#049171eb16cb4249d8099751a0c46750d1fe88e7"
 dependencies = [
 "anymap",
 "once_cell",
@@ -6165,7 +6165,7 @@ dependencies = [
 [[package]]
 name = "meter-macros"
 version = "0.1.0"
-source = "git+https://github.com/GreptimeTeam/greptime-meter.git?rev=80b72716dcde47ec4161478416a5c6c21343364d#80b72716dcde47ec4161478416a5c6c21343364d"
+source = "git+https://github.com/GreptimeTeam/greptime-meter.git?rev=049171eb16cb4249d8099751a0c46750d1fe88e7#049171eb16cb4249d8099751a0c46750d1fe88e7"
 dependencies = [
 "meter-core",
 ]
@@ -10326,6 +10326,7 @@ dependencies = [
 "common-telemetry",
 "common-time",
 "derive_builder 0.12.0",
+ "meter-core",
 "snafu 0.8.3",
 "sql",
 ]
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -119,12 +119,12 @@ etcd-client = { version = "0.13" }
 fst = "0.4.7"
 futures = "0.3"
 futures-util = "0.3"
-greptime-proto = { git = "https://github.com/GreptimeTeam/greptime-proto.git", rev = "7ca323090b3ae8faf2c15036b7f41b7c5225cf5f" }
+greptime-proto = { git = "https://github.com/GreptimeTeam/greptime-proto.git", rev = "c437b55725b7f5224fe9d46db21072b4a682ee4b" }
 humantime = "2.1"
 humantime-serde = "1.1"
 itertools = "0.10"
 lazy_static = "1.4"
-meter-core = { git = "https://github.com/GreptimeTeam/greptime-meter.git", rev = "80b72716dcde47ec4161478416a5c6c21343364d" }
+meter-core = { git = "https://github.com/GreptimeTeam/greptime-meter.git", rev = "049171eb16cb4249d8099751a0c46750d1fe88e7" }
 mockall = "0.11.4"
 moka = "0.12"
 notify = "6.1"
@@ -238,7 +238,7 @@ table = { path = "src/table" }

 [workspace.dependencies.meter-macros]
 git = "https://github.com/GreptimeTeam/greptime-meter.git"
-rev = "80b72716dcde47ec4161478416a5c6c21343364d"
+rev = "049171eb16cb4249d8099751a0c46750d1fe88e7"

 [profile.release]
 debug = 1
--- a/src/common/meta/src/rpc/ddl.rs
+++ b/src/common/meta/src/rpc/ddl.rs
@@ -1079,6 +1079,7 @@ pub struct QueryContext {
    current_schema: String,
    timezone: String,
    extensions: HashMap<String, String>,
+    channel: u8,
 }

 impl From<QueryContextRef> for QueryContext {
@@ -1088,6 +1089,7 @@ impl From<QueryContextRef> for QueryContext {
            current_schema: query_context.current_schema().to_string(),
            timezone: query_context.timezone().to_string(),
            extensions: query_context.extensions(),
+            channel: query_context.channel() as u8,
        }
    }
 }
@@ -1099,6 +1101,7 @@ impl From<QueryContext> for PbQueryContext {
            current_schema,
            timezone,
            extensions,
+            channel,
        }: QueryContext,
    ) -> Self {
        PbQueryContext {
@@ -1106,6 +1109,7 @@ impl From<QueryContext> for PbQueryContext {
            current_schema,
            timezone,
            extensions,
+            channel: channel as u32,
        }
    }
 }
--- a/src/operator/src/insert.rs
+++ b/src/operator/src/insert.rs
@@ -270,7 +270,12 @@ impl Inserter {
        requests: RegionInsertRequests,
        ctx: &QueryContextRef,
    ) -> Result<Output> {
-        let write_cost = write_meter!(ctx.current_catalog(), ctx.current_schema(), requests);
+        let write_cost = write_meter!(
+            ctx.current_catalog(),
+            ctx.current_schema(),
+            requests,
+            ctx.channel() as u8
+        );
        let request_factory = RegionRequestFactory::new(RegionRequestHeader {
            tracing_context: TracingContext::from_current_span().to_w3c(),
            dbname: ctx.get_db_string(),
--- a/src/query/src/dist_plan/merge_scan.rs
+++ b/src/query/src/dist_plan/merge_scan.rs
@@ -194,6 +194,7 @@ impl MergeScanExec {
        let tracing_context = TracingContext::from_json(context.session_id().as_str());
        let current_catalog = self.query_ctx.current_catalog().to_string();
        let current_schema = self.query_ctx.current_schema().to_string();
+        let current_channel = self.query_ctx.channel();
        let timezone = self.query_ctx.timezone().to_string();
        let extensions = self.query_ctx.extensions();
        let target_partition = self.target_partition;
@@ -221,6 +222,7 @@ impl MergeScanExec {
                            current_schema: current_schema.clone(),
                            timezone: timezone.clone(),
                            extensions: extensions.clone(),
+                            channel: current_channel as u32,
                        }),
                    }),
                    region_id,
@@ -271,7 +273,8 @@ impl MergeScanExec {
                        ReadItem {
                            cpu_time: metrics.elapsed_compute as u64,
                            table_scan: metrics.memory_usage as u64
-                        }
+                        },
+                        current_channel as u8
                    );
                    metric.record_greptime_exec_cost(value as usize);

--- a/src/servers/src/grpc/authorize.rs
+++ b/src/servers/src/grpc/authorize.rs
@@ -14,12 +14,11 @@

 use std::pin::Pin;
 use std::result::Result as StdResult;
-use std::sync::Arc;
 use std::task::{Context, Poll};

 use auth::UserProviderRef;
 use hyper::Body;
-use session::context::QueryContext;
+use session::context::{Channel, QueryContext};
 use tonic::body::BoxBody;
 use tonic::server::NamedService;
 use tower::{Layer, Service};
@@ -105,7 +104,7 @@ async fn do_auth<T>(
 ) -> Result<(), tonic::Status> {
    let (catalog, schema) = extract_catalog_and_schema(req);

-    let query_ctx = Arc::new(QueryContext::with(&catalog, &schema));
+    let query_ctx = QueryContext::with_channel(&catalog, &schema, Channel::Grpc);

    let Some(user_provider) = user_provider else {
        query_ctx.set_current_user(auth::userinfo_by_name(None));
@@ -139,7 +138,7 @@ mod tests {
    use base64::Engine;
    use headers::Header;
    use hyper::{Body, Request};
-    use session::context::QueryContextRef;
+    use session::context::QueryContext;

    use crate::grpc::authorize::do_auth;
    use crate::http::header::GreptimeDbName;
@@ -197,7 +196,7 @@ mod tests {
        expected_schema: &str,
        expected_user_name: &str,
    ) {
-        let ctx = req.extensions().get::<QueryContextRef>().unwrap();
+        let ctx = req.extensions().get::<QueryContext>().unwrap();
        assert_eq!(expected_catalog, ctx.current_catalog());
        assert_eq!(expected_schema, ctx.current_schema());

--- a/src/servers/src/grpc/otlp.rs
+++ b/src/servers/src/grpc/otlp.rs
@@ -13,6 +13,7 @@
 // limitations under the License.

 use std::result::Result as StdResult;
+use std::sync::Arc;

 use opentelemetry_proto::tonic::collector::metrics::v1::metrics_service_server::MetricsService;
 use opentelemetry_proto::tonic::collector::metrics::v1::{
@@ -22,7 +23,7 @@ use opentelemetry_proto::tonic::collector::trace::v1::trace_service_server::Trac
 use opentelemetry_proto::tonic::collector::trace::v1::{
    ExportTraceServiceRequest, ExportTraceServiceResponse,
 };
-use session::context::QueryContextRef;
+use session::context::{Channel, QueryContext};
 use snafu::OptionExt;
 use tonic::{Request, Response, Status};

@@ -47,10 +48,12 @@ impl TraceService for OtlpService {
    ) -> StdResult<Response<ExportTraceServiceResponse>, Status> {
        let (_headers, extensions, req) = request.into_parts();

-        let ctx = extensions
-            .get::<QueryContextRef>()
+        let mut ctx = extensions
+            .get::<QueryContext>()
            .cloned()
            .context(error::MissingQueryContextSnafu)?;
+        ctx.set_channel(Channel::Otlp);
+        let ctx = Arc::new(ctx);

        let _ = self.handler.traces(req, ctx).await?;

@@ -68,10 +71,12 @@ impl MetricsService for OtlpService {
    ) -> StdResult<Response<ExportMetricsServiceResponse>, Status> {
        let (_headers, extensions, req) = request.into_parts();

-        let ctx = extensions
-            .get::<QueryContextRef>()
+        let mut ctx = extensions
+            .get::<QueryContext>()
            .cloned()
            .context(error::MissingQueryContextSnafu)?;
+        ctx.set_channel(Channel::Otlp);
+        let ctx = Arc::new(ctx);

        let _ = self.handler.metrics(req, ctx).await?;

--- a/src/servers/src/http/authorize.rs
+++ b/src/servers/src/http/authorize.rs
@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

-use std::sync::Arc;
-
 use ::auth::UserProviderRef;
 use axum::extract::State;
 use axum::http::{self, Request, StatusCode};
@@ -68,7 +66,7 @@ pub async fn inner_auth<B>(
        .current_schema(schema.clone())
        .timezone(timezone);

-    let query_ctx = Arc::new(query_ctx_builder.build());
+    let query_ctx = query_ctx_builder.build();
    let need_auth = need_auth(&req);

    // 2. check if auth is needed
--- a/src/servers/src/http/event.rs
+++ b/src/servers/src/http/event.rs
@@ -32,7 +32,7 @@ use pipeline::{PipelineVersion, Value as PipelineValue};
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 use serde_json::{Deserializer, Value};
-use session::context::QueryContextRef;
+use session::context::{Channel, QueryContext, QueryContextRef};
 use snafu::{ensure, OptionExt, ResultExt};

 use crate::error::{
@@ -107,7 +107,7 @@ where
 pub async fn add_pipeline(
    State(state): State<LogState>,
    Path(pipeline_name): Path<String>,
-    Extension(query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
    PipelineContent(payload): PipelineContent,
 ) -> Result<GreptimedbManageResponse> {
    let start = Instant::now();
@@ -126,6 +126,9 @@ pub async fn add_pipeline(
        .build());
    }

+    query_ctx.set_channel(Channel::Http);
+    let query_ctx = Arc::new(query_ctx);
+
    let content_type = "yaml";
    let result = handler
        .insert_pipeline(&pipeline_name, content_type, &payload, query_ctx)
@@ -148,7 +151,7 @@ pub async fn add_pipeline(
 #[axum_macros::debug_handler]
 pub async fn delete_pipeline(
    State(state): State<LogState>,
-    Extension(query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
    Query(query_params): Query<LogIngesterQueryParams>,
    Path(pipeline_name): Path<String>,
 ) -> Result<GreptimedbManageResponse> {
@@ -167,6 +170,9 @@ pub async fn delete_pipeline(

    let version = to_pipeline_version(Some(version_str.clone())).context(PipelineSnafu)?;

+    query_ctx.set_channel(Channel::Http);
+    let query_ctx = Arc::new(query_ctx);
+
    handler
        .delete_pipeline(&pipeline_name, version, query_ctx)
        .await
@@ -231,7 +237,7 @@ fn transform_ndjson_array_factory(
 pub async fn log_ingester(
    State(log_state): State<LogState>,
    Query(query_params): Query<LogIngesterQueryParams>,
-    Extension(query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
    TypedHeader(content_type): TypedHeader<ContentType>,
    payload: String,
 ) -> Result<HttpResponse> {
@@ -256,6 +262,9 @@ pub async fn log_ingester(

    let value = extract_pipeline_value_by_content_type(content_type, payload, ignore_errors)?;

+    query_ctx.set_channel(Channel::Http);
+    let query_ctx = Arc::new(query_ctx);
+
    ingest_logs_inner(
        handler,
        pipeline_name,
--- a/src/servers/src/http/handler.rs
+++ b/src/servers/src/http/handler.rs
@@ -13,6 +13,7 @@
 // limitations under the License.

 use std::collections::HashMap;
+use std::sync::Arc;
 use std::time::Instant;

 use aide::transform::TransformOperation;
@@ -29,7 +30,7 @@ use query::parser::{PromQuery, DEFAULT_LOOKBACK_STRING};
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
-use session::context::QueryContextRef;
+use session::context::{Channel, QueryContext, QueryContextRef};

 use super::header::collect_plan_metrics;
 use crate::http::arrow_result::ArrowResponse;
@@ -70,13 +71,16 @@ pub struct SqlQuery {
 pub async fn sql(
    State(state): State<ApiState>,
    Query(query_params): Query<SqlQuery>,
-    Extension(query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
    Form(form_params): Form<SqlQuery>,
 ) -> HttpResponse {
    let start = Instant::now();
    let sql_handler = &state.sql_handler;
    let db = query_ctx.get_db_string();

+    query_ctx.set_channel(Channel::Http);
+    let query_ctx = Arc::new(query_ctx);
+
    let _timer = crate::metrics::METRIC_HTTP_SQL_ELAPSED
        .with_label_values(&[db.as_str()])
        .start_timer();
@@ -232,12 +236,15 @@ impl From<PromqlQuery> for PromQuery {
 pub async fn promql(
    State(state): State<ApiState>,
    Query(params): Query<PromqlQuery>,
-    Extension(query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
 ) -> Response {
    let sql_handler = &state.sql_handler;
    let exec_start = Instant::now();
    let db = query_ctx.get_db_string();

+    query_ctx.set_channel(Channel::Http);
+    let query_ctx = Arc::new(query_ctx);
+
    let _timer = crate::metrics::METRIC_HTTP_PROMQL_ELAPSED
        .with_label_values(&[db.as_str()])
        .start_timer();
--- a/src/servers/src/http/influxdb.rs
+++ b/src/servers/src/http/influxdb.rs
@@ -13,6 +13,7 @@
 // limitations under the License.

 use std::collections::HashMap;
+use std::sync::Arc;

 use axum::extract::{Query, State};
 use axum::http::StatusCode;
@@ -21,7 +22,7 @@ use axum::Extension;
 use common_catalog::consts::DEFAULT_SCHEMA_NAME;
 use common_grpc::precision::Precision;
 use common_telemetry::tracing;
-use session::context::QueryContextRef;
+use session::context::{Channel, QueryContext, QueryContextRef};

 use super::header::write_cost_header_map;
 use crate::error::{Result, TimePrecisionSnafu};
@@ -45,12 +46,14 @@ pub async fn influxdb_health() -> Result<impl IntoResponse> {
 pub async fn influxdb_write_v1(
    State(handler): State<InfluxdbLineProtocolHandlerRef>,
    Query(mut params): Query<HashMap<String, String>>,
-    Extension(query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
    lines: String,
 ) -> Result<impl IntoResponse> {
    let db = params
        .remove("db")
        .unwrap_or_else(|| DEFAULT_SCHEMA_NAME.to_string());
+    query_ctx.set_channel(Channel::Influx);
+    let query_ctx = Arc::new(query_ctx);

    let precision = params
        .get("precision")
@@ -65,7 +68,7 @@ pub async fn influxdb_write_v1(
 pub async fn influxdb_write_v2(
    State(handler): State<InfluxdbLineProtocolHandlerRef>,
    Query(mut params): Query<HashMap<String, String>>,
-    Extension(query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
    lines: String,
 ) -> Result<impl IntoResponse> {
    let db = match (params.remove("db"), params.remove("bucket")) {
@@ -73,6 +76,8 @@ pub async fn influxdb_write_v2(
        (Some(db), None) => db.clone(),
        _ => DEFAULT_SCHEMA_NAME.to_string(),
    };
+    query_ctx.set_channel(Channel::Influx);
+    let query_ctx = Arc::new(query_ctx);

    let precision = params
        .get("precision")
--- a/src/servers/src/http/opentsdb.rs
+++ b/src/servers/src/http/opentsdb.rs
@@ -13,6 +13,7 @@
 // limitations under the License.

 use std::collections::HashMap;
+use std::sync::Arc;

 use axum::extract::{Query, RawBody, State};
 use axum::http::StatusCode as HttpStatusCode;
@@ -20,7 +21,7 @@ use axum::{Extension, Json};
 use common_error::ext::ErrorExt;
 use hyper::Body;
 use serde::{Deserialize, Serialize};
-use session::context::QueryContextRef;
+use session::context::{Channel, QueryContext};
 use snafu::ResultExt;

 use crate::error::{self, Result};
@@ -74,7 +75,7 @@ pub enum OpentsdbPutResponse {
 pub async fn put(
    State(opentsdb_handler): State<OpentsdbProtocolHandlerRef>,
    Query(params): Query<HashMap<String, String>>,
-    Extension(ctx): Extension<QueryContextRef>,
+    Extension(mut ctx): Extension<QueryContext>,
    RawBody(body): RawBody,
 ) -> Result<(HttpStatusCode, Json<OpentsdbPutResponse>)> {
    let summary = params.contains_key("summary");
@@ -86,6 +87,9 @@ pub async fn put(
        .map(|point| point.clone().into())
        .collect::<Vec<_>>();

+    ctx.set_channel(Channel::Opentsdb);
+    let ctx = Arc::new(ctx);
+
    let response = if !summary && !details {
        if let Err(e) = opentsdb_handler.exec(data_points, ctx.clone()).await {
            // Not debugging purpose, failed fast.
--- a/src/servers/src/http/otlp.rs
+++ b/src/servers/src/http/otlp.rs
@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

+use std::sync::Arc;
+
 use axum::extract::{RawBody, State};
 use axum::http::header;
 use axum::response::IntoResponse;
@@ -25,7 +27,7 @@ use opentelemetry_proto::tonic::collector::trace::v1::{
    ExportTraceServiceRequest, ExportTraceServiceResponse,
 };
 use prost::Message;
-use session::context::QueryContextRef;
+use session::context::{Channel, QueryContext};
 use snafu::prelude::*;

 use super::header::{write_cost_header_map, CONTENT_TYPE_PROTOBUF};
@@ -36,10 +38,12 @@ use crate::query_handler::OpenTelemetryProtocolHandlerRef;
 #[tracing::instrument(skip_all, fields(protocol = "otlp", request_type = "metrics"))]
 pub async fn metrics(
    State(handler): State<OpenTelemetryProtocolHandlerRef>,
-    Extension(query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
    RawBody(body): RawBody,
 ) -> Result<OtlpMetricsResponse> {
    let db = query_ctx.get_db_string();
+    query_ctx.set_channel(Channel::Otlp);
+    let query_ctx = Arc::new(query_ctx);
    let _timer = crate::metrics::METRIC_HTTP_OPENTELEMETRY_METRICS_ELAPSED
        .with_label_values(&[db.as_str()])
        .start_timer();
@@ -83,10 +87,12 @@ impl IntoResponse for OtlpMetricsResponse {
 #[tracing::instrument(skip_all, fields(protocol = "otlp", request_type = "traces"))]
 pub async fn traces(
    State(handler): State<OpenTelemetryProtocolHandlerRef>,
-    Extension(query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
    RawBody(body): RawBody,
 ) -> Result<OtlpTracesResponse> {
    let db = query_ctx.get_db_string();
+    query_ctx.set_channel(Channel::Otlp);
+    let query_ctx = Arc::new(query_ctx);
    let _timer = crate::metrics::METRIC_HTTP_OPENTELEMETRY_TRACES_ELAPSED
        .with_label_values(&[db.as_str()])
        .start_timer();
--- a/src/servers/src/http/prom_store.rs
+++ b/src/servers/src/http/prom_store.rs
@@ -30,7 +30,7 @@ use object_pool::Pool;
 use prost::Message;
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
-use session::context::QueryContextRef;
+use session::context::{Channel, QueryContext};
 use snafu::prelude::*;

 use super::header::{write_cost_header_map, GREPTIME_DB_HEADER_METRICS};
@@ -74,7 +74,7 @@ impl Default for RemoteWriteQuery {
 pub async fn route_write_without_metric_engine(
    handler: State<PromStoreProtocolHandlerRef>,
    query: Query<RemoteWriteQuery>,
-    extension: Extension<QueryContextRef>,
+    extension: Extension<QueryContext>,
    content_encoding: TypedHeader<headers::ContentEncoding>,
    raw_body: RawBody,
 ) -> Result<impl IntoResponse> {
@@ -96,7 +96,7 @@ pub async fn route_write_without_metric_engine(
 pub async fn route_write_without_metric_engine_and_strict_mode(
    handler: State<PromStoreProtocolHandlerRef>,
    query: Query<RemoteWriteQuery>,
-    extension: Extension<QueryContextRef>,
+    extension: Extension<QueryContext>,
    content_encoding: TypedHeader<headers::ContentEncoding>,
    raw_body: RawBody,
 ) -> Result<impl IntoResponse> {
@@ -120,7 +120,7 @@ pub async fn route_write_without_metric_engine_and_strict_mode(
 pub async fn remote_write(
    handler: State<PromStoreProtocolHandlerRef>,
    query: Query<RemoteWriteQuery>,
-    extension: Extension<QueryContextRef>,
+    extension: Extension<QueryContext>,
    content_encoding: TypedHeader<headers::ContentEncoding>,
    raw_body: RawBody,
 ) -> Result<impl IntoResponse> {
@@ -144,7 +144,7 @@ pub async fn remote_write(
 pub async fn remote_write_without_strict_mode(
    handler: State<PromStoreProtocolHandlerRef>,
    query: Query<RemoteWriteQuery>,
-    extension: Extension<QueryContextRef>,
+    extension: Extension<QueryContext>,
    content_encoding: TypedHeader<headers::ContentEncoding>,
    raw_body: RawBody,
 ) -> Result<impl IntoResponse> {
@@ -163,7 +163,7 @@ pub async fn remote_write_without_strict_mode(
 async fn remote_write_impl(
    State(handler): State<PromStoreProtocolHandlerRef>,
    Query(params): Query<RemoteWriteQuery>,
-    Extension(mut query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
    content_encoding: TypedHeader<headers::ContentEncoding>,
    RawBody(body): RawBody,
    is_strict_mode: bool,
@@ -175,6 +175,7 @@ async fn remote_write_impl(
    }

    let db = params.db.clone().unwrap_or_default();
+    query_ctx.set_channel(Channel::Prometheus);
    let _timer = crate::metrics::METRIC_HTTP_PROM_STORE_WRITE_ELAPSED
        .with_label_values(&[db.as_str()])
        .start_timer();
@@ -183,10 +184,9 @@ async fn remote_write_impl(
    let (request, samples) = decode_remote_write_request(is_zstd, body, is_strict_mode).await?;

    if let Some(physical_table) = params.physical_table {
-        let mut new_query_ctx = query_ctx.as_ref().clone();
-        new_query_ctx.set_extension(PHYSICAL_TABLE_PARAM, physical_table);
-        query_ctx = Arc::new(new_query_ctx);
+        query_ctx.set_extension(PHYSICAL_TABLE_PARAM, physical_table);
    }
+    let query_ctx = Arc::new(query_ctx);

    let output = handler.write(request, query_ctx, is_metric_engine).await?;
    crate::metrics::PROM_STORE_REMOTE_WRITE_SAMPLES.inc_by(samples as u64);
@@ -224,10 +224,12 @@ impl IntoResponse for PromStoreResponse {
 pub async fn remote_read(
    State(handler): State<PromStoreProtocolHandlerRef>,
    Query(params): Query<RemoteWriteQuery>,
-    Extension(query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
    RawBody(body): RawBody,
 ) -> Result<PromStoreResponse> {
    let db = params.db.clone().unwrap_or_default();
+    query_ctx.set_channel(Channel::Prometheus);
+    let query_ctx = Arc::new(query_ctx);
    let _timer = crate::metrics::METRIC_HTTP_PROM_STORE_READ_ELAPSED
        .with_label_values(&[db.as_str()])
        .start_timer();
--- a/src/servers/src/http/prometheus.rs
+++ b/src/servers/src/http/prometheus.rs
@@ -42,7 +42,7 @@ use schemars::JsonSchema;
 use serde::de::{self, MapAccess, Visitor};
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
-use session::context::{QueryContext, QueryContextBuilder, QueryContextRef};
+use session::context::QueryContext;
 use snafu::{Location, OptionExt, ResultExt};

 pub use super::prometheus_resp::PrometheusJsonResponse;
@@ -122,7 +122,7 @@ pub struct FormatQuery {
 pub async fn format_query(
    State(_handler): State<PrometheusHandlerRef>,
    Query(params): Query<InstantQuery>,
-    Extension(_query_ctx): Extension<QueryContextRef>,
+    Extension(_query_ctx): Extension<QueryContext>,
    Form(form_params): Form<InstantQuery>,
 ) -> PrometheusJsonResponse {
    let query = params.query.or(form_params.query).unwrap_or_default();
@@ -168,7 +168,7 @@ pub struct InstantQuery {
 pub async fn instant_query(
    State(handler): State<PrometheusHandlerRef>,
    Query(params): Query<InstantQuery>,
-    Extension(mut query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
    Form(form_params): Form<InstantQuery>,
 ) -> PrometheusJsonResponse {
    // Extract time from query string, or use current server time if not specified.
@@ -190,8 +190,9 @@ pub async fn instant_query(
    // update catalog and schema in query context if necessary
    if let Some(db) = &params.db {
        let (catalog, schema) = parse_catalog_and_schema_from_db_string(db);
-        query_ctx = try_update_catalog_schema(query_ctx, &catalog, &schema);
+        try_update_catalog_schema(&mut query_ctx, &catalog, &schema);
    }
+    let query_ctx = Arc::new(query_ctx);

    let _timer = crate::metrics::METRIC_HTTP_PROMETHEUS_PROMQL_ELAPSED
        .with_label_values(&[query_ctx.get_db_string().as_str(), "instant_query"])
@@ -226,7 +227,7 @@ pub struct RangeQuery {
 pub async fn range_query(
    State(handler): State<PrometheusHandlerRef>,
    Query(params): Query<RangeQuery>,
-    Extension(mut query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
    Form(form_params): Form<RangeQuery>,
 ) -> PrometheusJsonResponse {
    let prom_query = PromQuery {
@@ -243,8 +244,9 @@ pub async fn range_query(
    // update catalog and schema in query context if necessary
    if let Some(db) = &params.db {
        let (catalog, schema) = parse_catalog_and_schema_from_db_string(db);
-        query_ctx = try_update_catalog_schema(query_ctx, &catalog, &schema);
+        try_update_catalog_schema(&mut query_ctx, &catalog, &schema);
    }
+    let query_ctx = Arc::new(query_ctx);

    let _timer = crate::metrics::METRIC_HTTP_PROMETHEUS_PROMQL_ELAPSED
        .with_label_values(&[query_ctx.get_db_string().as_str(), "range_query"])
@@ -313,11 +315,12 @@ impl<'de> Deserialize<'de> for Matches {
 pub async fn labels_query(
    State(handler): State<PrometheusHandlerRef>,
    Query(params): Query<LabelsQuery>,
-    Extension(query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
    Form(form_params): Form<LabelsQuery>,
 ) -> PrometheusJsonResponse {
    let (catalog, schema) = get_catalog_schema(&params.db, &query_ctx);
-    let query_ctx = try_update_catalog_schema(query_ctx, &catalog, &schema);
+    try_update_catalog_schema(&mut query_ctx, &catalog, &schema);
+    let query_ctx = Arc::new(query_ctx);

    let mut queries = params.matches.0;
    if queries.is_empty() {
@@ -625,20 +628,10 @@ pub(crate) fn get_catalog_schema(db: &Option<String>, ctx: &QueryContext) -> (St
 }

 /// Update catalog and schema in [QueryContext] if necessary.
-pub(crate) fn try_update_catalog_schema(
-    ctx: QueryContextRef,
-    catalog: &str,
-    schema: &str,
-) -> QueryContextRef {
+pub(crate) fn try_update_catalog_schema(ctx: &mut QueryContext, catalog: &str, schema: &str) {
    if ctx.current_catalog() != catalog || ctx.current_schema() != schema {
-        Arc::new(
-            QueryContextBuilder::from_existing(&ctx)
-                .current_catalog(catalog.to_string())
-                .current_schema(schema.to_string())
-                .build(),
-        )
-    } else {
-        ctx
+        ctx.set_current_catalog(catalog);
+        ctx.set_current_schema(schema);
    }
 }

@@ -693,11 +686,12 @@ pub struct LabelValueQuery {
 pub async fn label_values_query(
    State(handler): State<PrometheusHandlerRef>,
    Path(label_name): Path<String>,
-    Extension(query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
    Query(params): Query<LabelValueQuery>,
 ) -> PrometheusJsonResponse {
    let (catalog, schema) = get_catalog_schema(&params.db, &query_ctx);
-    let query_ctx = try_update_catalog_schema(query_ctx, &catalog, &schema);
+    try_update_catalog_schema(&mut query_ctx, &catalog, &schema);
+    let query_ctx = Arc::new(query_ctx);

    let _timer = crate::metrics::METRIC_HTTP_PROMETHEUS_PROMQL_ELAPSED
        .with_label_values(&[query_ctx.get_db_string().as_str(), "label_values_query"])
@@ -955,7 +949,7 @@ pub struct SeriesQuery {
 pub async fn series_query(
    State(handler): State<PrometheusHandlerRef>,
    Query(params): Query<SeriesQuery>,
-    Extension(mut query_ctx): Extension<QueryContextRef>,
+    Extension(mut query_ctx): Extension<QueryContext>,
    Form(form_params): Form<SeriesQuery>,
 ) -> PrometheusJsonResponse {
    let mut queries: Vec<String> = params.matches.0;
@@ -981,8 +975,9 @@ pub async fn series_query(
    // update catalog and schema in query context if necessary
    if let Some(db) = &params.db {
        let (catalog, schema) = parse_catalog_and_schema_from_db_string(db);
-        query_ctx = try_update_catalog_schema(query_ctx, &catalog, &schema);
+        try_update_catalog_schema(&mut query_ctx, &catalog, &schema);
    }
+    let query_ctx = Arc::new(query_ctx);

    let _timer = crate::metrics::METRIC_HTTP_PROMETHEUS_PROMQL_ELAPSED
        .with_label_values(&[query_ctx.get_db_string().as_str(), "series_query"])
--- a/src/servers/tests/http/authorize.rs
+++ b/src/servers/tests/http/authorize.rs
@@ -20,14 +20,14 @@ use axum::http;
 use http_body::Body;
 use hyper::{Request, StatusCode};
 use servers::http::authorize::inner_auth;
-use session::context::QueryContextRef;
+use session::context::QueryContext;

 #[tokio::test]
 async fn test_http_auth() {
    // base64encode("username:password") == "dXNlcm5hbWU6cGFzc3dvcmQ="
    let req = mock_http_request(Some("Basic dXNlcm5hbWU6cGFzc3dvcmQ="), None).unwrap();
    let req = inner_auth(None, req).await.unwrap();
-    let ctx: &QueryContextRef = req.extensions().get().unwrap();
+    let ctx: &QueryContext = req.extensions().get().unwrap();
    let user_info = ctx.current_user();
    let default = auth::userinfo_by_name(None);
    assert_eq!(default.username(), user_info.username());
@@ -38,7 +38,7 @@ async fn test_http_auth() {
    // base64encode("greptime:greptime") == "Z3JlcHRpbWU6Z3JlcHRpbWU="
    let req = mock_http_request(Some("Basic Z3JlcHRpbWU6Z3JlcHRpbWU="), None).unwrap();
    let req = inner_auth(mock_user_provider.clone(), req).await.unwrap();
-    let ctx: &QueryContextRef = req.extensions().get().unwrap();
+    let ctx: &QueryContext = req.extensions().get().unwrap();
    let user_info = ctx.current_user();
    let default = auth::userinfo_by_name(None);
    assert_eq!(default.username(), user_info.username());
@@ -79,7 +79,7 @@ async fn test_schema_validating() {
    )
    .unwrap();
    let req = inner_auth(mock_user_provider.clone(), req).await.unwrap();
-    let ctx: &QueryContextRef = req.extensions().get().unwrap();
+    let ctx: &QueryContext = req.extensions().get().unwrap();
    let user_info = ctx.current_user();
    let default = auth::userinfo_by_name(None);
    assert_eq!(default.username(), user_info.username());
--- a/src/servers/tests/http/http_handler_test.rs
+++ b/src/servers/tests/http/http_handler_test.rs
@@ -40,7 +40,7 @@ use crate::{
 #[tokio::test]
 async fn test_sql_not_provided() {
    let sql_handler = create_testing_sql_query_handler(MemTable::default_numbers_table());
-    let ctx = QueryContext::arc();
+    let ctx = QueryContext::with_db_name(None);
    ctx.set_current_user(auth::userinfo_by_name(None));
    let api_state = ApiState {
        sql_handler,
@@ -74,7 +74,7 @@ async fn test_sql_output_rows() {

    let sql_handler = create_testing_sql_query_handler(MemTable::default_numbers_table());

-    let ctx = QueryContext::arc();
+    let ctx = QueryContext::with_db_name(None);
    ctx.set_current_user(auth::userinfo_by_name(None));
    let api_state = ApiState {
        sql_handler,
@@ -180,7 +180,7 @@ async fn test_sql_output_rows() {
 #[tokio::test]
 async fn test_dashboard_sql_limit() {
    let sql_handler = create_testing_sql_query_handler(MemTable::specified_numbers_table(2000));
-    let ctx = QueryContext::arc();
+    let ctx = QueryContext::with_db_name(None);
    ctx.set_current_user(auth::userinfo_by_name(None));
    let api_state = ApiState {
        sql_handler,
@@ -226,7 +226,7 @@ async fn test_sql_form() {

    let sql_handler = create_testing_sql_query_handler(MemTable::default_numbers_table());

-    let ctx = QueryContext::arc();
+    let ctx = QueryContext::with_db_name(None);
    ctx.set_current_user(auth::userinfo_by_name(None));
    let api_state = ApiState {
        sql_handler,
--- a/src/session/Cargo.toml
+++ b/src/session/Cargo.toml
@@ -20,5 +20,6 @@ common-macro.workspace = true
 common-telemetry.workspace = true
 common-time.workspace = true
 derive_builder.workspace = true
+meter-core.workspace = true
 snafu.workspace = true
 sql.workspace = true
--- a/src/session/src/context.rs
+++ b/src/session/src/context.rs
@@ -25,7 +25,7 @@ use common_catalog::{build_db_string, parse_catalog_and_schema_from_db_string};
 use common_time::timezone::parse_timezone;
 use common_time::Timezone;
 use derive_builder::Builder;
-use sql::dialect::{Dialect, GreptimeDbDialect, MySqlDialect, PostgreSqlDialect};
+use sql::dialect::{Dialect, GenericDialect, GreptimeDbDialect, MySqlDialect, PostgreSqlDialect};

 use crate::session_config::{PGByteaOutputValue, PGDateOrder, PGDateTimeStyle};
 use crate::MutableInner;
@@ -47,6 +47,9 @@ pub struct QueryContext {
    // The configuration parameter are used to store the parameters that are set by the user
    #[builder(default)]
    configuration_parameter: Arc<ConfigurationVariables>,
+    // Track which protocol the query comes from.
+    #[builder(default)]
+    channel: Channel,
 }

 impl Display for QueryContext {
@@ -94,7 +97,8 @@ impl From<&RegionRequestHeader> for QueryContext {
                .current_catalog(ctx.current_catalog.clone())
                .current_schema(ctx.current_schema.clone())
                .timezone(parse_timezone(Some(&ctx.timezone)))
-                .extensions(ctx.extensions.clone());
+                .extensions(ctx.extensions.clone())
+                .channel(ctx.channel.into());
        }
        builder.build()
    }
@@ -107,6 +111,7 @@ impl From<api::v1::QueryContext> for QueryContext {
            .current_schema(ctx.current_schema)
            .timezone(parse_timezone(Some(&ctx.timezone)))
            .extensions(ctx.extensions)
+            .channel(ctx.channel.into())
            .build()
    }
 }
@@ -117,6 +122,7 @@ impl From<QueryContext> for api::v1::QueryContext {
            current_catalog,
            mutable_inner,
            extensions,
+            channel,
            ..
        }: QueryContext,
    ) -> Self {
@@ -126,6 +132,7 @@ impl From<QueryContext> for api::v1::QueryContext {
            current_schema: mutable_inner.schema.clone(),
            timezone: mutable_inner.timezone.to_string(),
            extensions,
+            channel: channel as u32,
        }
    }
 }
@@ -142,6 +149,14 @@ impl QueryContext {
            .build()
    }

+    pub fn with_channel(catalog: &str, schema: &str, channel: Channel) -> QueryContext {
+        QueryContextBuilder::default()
+            .current_catalog(catalog.to_string())
+            .current_schema(schema.to_string())
+            .channel(channel)
+            .build()
+    }
+
    pub fn with_db_name(db_name: Option<&str>) -> QueryContext {
        let (catalog, schema) = db_name
            .map(|db| {
@@ -172,6 +187,10 @@ impl QueryContext {
        &self.current_catalog
    }

+    pub fn set_current_catalog(&mut self, new_catalog: &str) {
+        self.current_catalog = new_catalog.to_string();
+    }
+
    pub fn sql_dialect(&self) -> &(dyn Dialect + Send + Sync) {
        &*self.sql_dialect
    }
@@ -224,6 +243,14 @@ impl QueryContext {
    pub fn configuration_parameter(&self) -> &ConfigurationVariables {
        &self.configuration_parameter
    }
+
+    pub fn channel(&self) -> Channel {
+        self.channel
+    }
+
+    pub fn set_channel(&mut self, channel: Channel) {
+        self.channel = channel;
+    }
 }

 impl QueryContextBuilder {
@@ -238,6 +265,7 @@ impl QueryContextBuilder {
                .unwrap_or_else(|| Arc::new(GreptimeDbDialect {})),
            extensions: self.extensions.unwrap_or_default(),
            configuration_parameter: self.configuration_parameter.unwrap_or_default(),
+            channel: self.channel.unwrap_or_default(),
        }
    }

@@ -247,17 +275,6 @@ impl QueryContextBuilder {
            .insert(key, value);
        self
    }
-
-    pub fn from_existing(context: &QueryContext) -> QueryContextBuilder {
-        QueryContextBuilder {
-            current_catalog: Some(context.current_catalog.clone()),
-            // note that this is a shallow copy
-            mutable_inner: Some(context.mutable_inner.clone()),
-            sql_dialect: Some(context.sql_dialect.clone()),
-            extensions: Some(context.extensions.clone()),
-            configuration_parameter: Some(context.configuration_parameter.clone()),
-        }
-    }
 }

 #[derive(Debug)]
@@ -289,10 +306,37 @@ impl ConnInfo {
    }
 }

-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Default, Clone, Copy)]
+#[repr(u8)]
 pub enum Channel {
-    Mysql,
-    Postgres,
+    #[default]
+    Unknown = 0,
+
+    Mysql = 1,
+    Postgres = 2,
+    Http = 3,
+    Prometheus = 4,
+    Otlp = 5,
+    Grpc = 6,
+    Influx = 7,
+    Opentsdb = 8,
+}
+
+impl From<u32> for Channel {
+    fn from(value: u32) -> Self {
+        match value {
+            1 => Self::Mysql,
+            2 => Self::Postgres,
+            3 => Self::Http,
+            4 => Self::Prometheus,
+            5 => Self::Otlp,
+            6 => Self::Grpc,
+            7 => Self::Influx,
+            8 => Self::Opentsdb,
+
+            _ => Self::Unknown,
+        }
+    }
 }

 impl Channel {
@@ -300,6 +344,7 @@ impl Channel {
        match self {
            Channel::Mysql => Arc::new(MySqlDialect {}),
            Channel::Postgres => Arc::new(PostgreSqlDialect {}),
+            _ => Arc::new(GenericDialect {}),
        }
    }
 }
@@ -309,6 +354,13 @@ impl Display for Channel {
        match self {
            Channel::Mysql => write!(f, "mysql"),
            Channel::Postgres => write!(f, "postgres"),
+            Channel::Http => write!(f, "http"),
+            Channel::Prometheus => write!(f, "prometheus"),
+            Channel::Otlp => write!(f, "otlp"),
+            Channel::Grpc => write!(f, "grpc"),
+            Channel::Influx => write!(f, "influx"),
+            Channel::Opentsdb => write!(f, "opentsdb"),
+            Channel::Unknown => write!(f, "unknown"),
        }
    }
 }
--- a/src/session/src/lib.rs
+++ b/src/session/src/lib.rs
@@ -79,6 +79,7 @@ impl Session {
            .mutable_inner(self.mutable_inner.clone())
            .sql_dialect(self.conn_info.channel.dialect())
            .configuration_parameter(self.configuration_variables.clone())
+            .channel(self.conn_info.channel)
            .build()
            .into()
    }
--- a/src/sql/src/dialect.rs
+++ b/src/sql/src/dialect.rs
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

-pub use sqlparser::dialect::{Dialect, MySqlDialect, PostgreSqlDialect};
+pub use sqlparser::dialect::{Dialect, GenericDialect, MySqlDialect, PostgreSqlDialect};

 /// GreptimeDb dialect
 #[derive(Debug, Clone)]