fix(log-query): panic on prometheus (#5429)

* fix(log-query): panic on prometheus

Signed-off-by: Ruihang Xia <waynestxia@gmail.com>

* fix test environment setup

Signed-off-by: Ruihang Xia <waynestxia@gmail.com>

---------

Signed-off-by: Ruihang Xia <waynestxia@gmail.com>

Cargo.lock

@@ -12373,6 +12373,7 @@ dependencies = [
  "futures-util",
  "hex",
  "itertools 0.10.5",
+ "log-query",
  "loki-api",
  "meta-client",
  "meta-srv",

src/servers/src/http/logs.rs

@@ -38,7 +38,7 @@ pub async fn logs(
     query_ctx.set_channel(Channel::Http);
     let query_ctx = Arc::new(query_ctx);
 
-    let _timer = crate::metrics::METRIC_HTTP_LOGS_INGESTION_ELAPSED
+    let _timer = crate::metrics::METRIC_HTTP_LOGS_ELAPSED
         .with_label_values(&[db.as_str()])
         .start_timer();
 

tests-integration/Cargo.toml

@@ -45,6 +45,7 @@ flow.workspace = true
 frontend = { workspace = true, features = ["testing"] }
 futures.workspace = true
 futures-util.workspace = true
+log-query = { workspace = true }
 loki-api = "0.1"
 meta-client.workspace = true
 meta-srv = { workspace = true, features = ["mock"] }

tests-integration/src/test_util.rs

@@ -394,6 +394,7 @@ pub async fn setup_test_http_app(store_type: StorageType, name: &str) -> (Router
             ServerSqlQueryHandlerAdapter::arc(instance.instance.clone()),
             None,
         )
+        .with_logs_handler(instance.instance.clone())
         .with_metrics_handler(MetricsHandler)
         .with_greptime_config_options(instance.opts.datanode_options().to_toml().unwrap())
         .build();
@@ -429,6 +430,7 @@ pub async fn setup_test_http_app_with_frontend_and_user_provider(
             Some(instance.instance.clone()),
         )
         .with_log_ingest_handler(instance.instance.clone(), None, None)
+        .with_logs_handler(instance.instance.clone())
         .with_otlp_handler(instance.instance.clone())
         .with_greptime_config_options(instance.opts.to_toml().unwrap());
 
@@ -467,6 +469,7 @@ pub async fn setup_test_prom_app_with_frontend(
             ServerSqlQueryHandlerAdapter::arc(frontend_ref.clone()),
             Some(frontend_ref.clone()),
         )
+        .with_logs_handler(instance.instance.clone())
         .with_prom_handler(frontend_ref.clone(), true, is_strict_mode)
         .with_prometheus_handler(frontend_ref)
         .with_greptime_config_options(instance.opts.datanode_options().to_toml().unwrap())

tests-integration/tests/http.rs

@@ -22,6 +22,7 @@ use axum::http::{HeaderName, HeaderValue, StatusCode};
 use common_error::status_code::StatusCode as ErrorCode;
 use flate2::write::GzEncoder;
 use flate2::Compression;
+use log_query::{ColumnFilters, Context, Limit, LogQuery, TimeFilter};
 use loki_api::logproto::{EntryAdapter, PushRequest, StreamAdapter};
 use loki_api::prost_types::Timestamp;
 use opentelemetry_proto::tonic::collector::logs::v1::ExportLogsServiceRequest;
@@ -40,6 +41,7 @@ use servers::http::result::influxdb_result_v1::{InfluxdbOutput, InfluxdbV1Respon
 use servers::http::test_helpers::{TestClient, TestResponse};
 use servers::http::GreptimeQueryOutput;
 use servers::prom_store;
+use table::table_name::TableName;
 use tests_integration::test_util::{
     setup_test_http_app, setup_test_http_app_with_frontend,
     setup_test_http_app_with_frontend_and_user_provider, setup_test_prom_app_with_frontend,
@@ -97,6 +99,7 @@ macro_rules! http_tests {
                 test_otlp_traces,
                 test_otlp_logs,
                 test_loki_logs,
+                test_log_query,
             );
         )*
     };
@@ -1882,6 +1885,68 @@ pub async fn test_loki_logs(store_type: StorageType) {
     guard.remove_all().await;
 }
 
+pub async fn test_log_query(store_type: StorageType) {
+    common_telemetry::init_default_ut_logging();
+    let (app, mut guard) = setup_test_http_app_with_frontend(store_type, "test_log_query").await;
+
+    let client = TestClient::new(app);
+
+    // prepare data with SQL API
+    let res = client
+        .get("/v1/sql?sql=create table logs (`ts` timestamp time index, message string);")
+        .send()
+        .await;
+    assert_eq!(res.status(), StatusCode::OK, "{:?}", res.text().await);
+    let res = client
+        .post("/v1/sql?sql=insert into logs values ('2024-11-07 10:53:50', 'hello');")
+        .header("Content-Type", "application/x-www-form-urlencoded")
+        .send()
+        .await;
+    assert_eq!(res.status(), StatusCode::OK, "{:?}", res.text().await);
+
+    // test log query
+    let log_query = LogQuery {
+        table: TableName {
+            catalog_name: "greptime".to_string(),
+            schema_name: "public".to_string(),
+            table_name: "logs".to_string(),
+        },
+        time_filter: TimeFilter {
+            start: Some("2024-11-07".to_string()),
+            end: None,
+            span: None,
+        },
+        limit: Limit {
+            skip: None,
+            fetch: Some(1),
+        },
+        columns: vec![
+            ColumnFilters {
+                column_name: "ts".to_string(),
+                filters: vec![],
+            },
+            ColumnFilters {
+                column_name: "message".to_string(),
+                filters: vec![],
+            },
+        ],
+        context: Context::None,
+    };
+    let res = client
+        .post("/v1/logs")
+        .header("Content-Type", "application/json")
+        .body(serde_json::to_string(&log_query).unwrap())
+        .send()
+        .await;
+
+    assert_eq!(res.status(), StatusCode::OK, "{:?}", res.text().await);
+    let resp = res.text().await;
+    let v = get_rows_from_output(&resp);
+    assert_eq!(v, "[[1730976830000,\"hello\"]]");
+
+    guard.remove_all().await;
+}
+
 async fn validate_data(test_name: &str, client: &TestClient, sql: &str, expected: &str) {
     let res = client
         .get(format!("/v1/sql?sql={sql}").as_str())