From 05d846c5723c5122faf5c0ec3768bc3d64591a3e Mon Sep 17 00:00:00 2001
From: xxchan <xxchan22f@gmail.com>
Date: Fri, 15 Mar 2024 14:32:27 +0800
Subject: [PATCH] rm metrics.rs

---
 src/common/src/metrics.rs | 103 --------------------------------------
 1 file changed, 103 deletions(-)
 delete mode 100644 src/common/src/metrics.rs

diff --git a/src/common/src/metrics.rs b/src/common/src/metrics.rs
deleted file mode 100644
index 32129732159ef..0000000000000
--- a/src/common/src/metrics.rs
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright 2024 RisingWave Labs
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-use std::ops::Deref;
-use std::sync::LazyLock;
-
-use hytra::TrAdder;
-use prometheus::core::{Atomic, AtomicU64, GenericCounter, GenericGauge};
-use prometheus::register_int_counter_with_registry;
-use tracing::Subscriber;
-use tracing_subscriber::layer::Context;
-use tracing_subscriber::registry::LookupSpan;
-use tracing_subscriber::Layer;
-
-use crate::monitor::GLOBAL_METRICS_REGISTRY;
-
-mod error_metrics;
-mod guarded_metrics;
-mod relabeled_metric;
-
-pub use error_metrics::*;
-pub use guarded_metrics::*;
-pub use relabeled_metric::*;
-
-#[derive(Debug)]
-pub struct TrAdderAtomic(TrAdder<i64>);
-
-impl Atomic for TrAdderAtomic {
-    type T = i64;
-
-    fn new(val: i64) -> Self {
-        let v = TrAdderAtomic(TrAdder::new());
-        v.0.inc(val);
-        v
-    }
-
-    fn set(&self, _val: i64) {
-        panic!("TrAdderAtomic doesn't support set operation.")
-    }
-
-    fn get(&self) -> i64 {
-        self.0.get()
-    }
-
-    fn inc_by(&self, delta: i64) {
-        self.0.inc(delta)
-    }
-
-    fn dec_by(&self, delta: i64) {
-        self.0.inc(-delta)
-    }
-}
-
-pub type TrAdderGauge = GenericGauge<TrAdderAtomic>;
-
-/// [`MetricsLayer`] is a struct used for monitoring the frequency of certain specific logs and
-/// counting them using Prometheus metrics. Currently, it is used to monitor the frequency of retry
-/// occurrences of aws sdk.
-pub struct MetricsLayer {
-    pub aws_sdk_retry_counts: GenericCounter<AtomicU64>,
-}
-
-impl<S> Layer<S> for MetricsLayer
-where
-    S: Subscriber + for<'a> LookupSpan<'a>,
-{
-    fn on_event(&self, _event: &tracing::Event<'_>, _ctx: Context<'_, S>) {
-        // Currently one retry will only generate one debug log,
-        // so we can monitor the number of retry only through the metadata target.
-        // Refer to <https://docs.rs/aws-smithy-client/0.55.3/src/aws_smithy_client/retry.rs.html>
-        self.aws_sdk_retry_counts.inc();
-    }
-}
-
-impl MetricsLayer {
-    #[allow(clippy::new_without_default)]
-    pub fn new() -> Self {
-        static AWS_SDK_RETRY_COUNTS: LazyLock<GenericCounter<AtomicU64>> = LazyLock::new(|| {
-            let registry = GLOBAL_METRICS_REGISTRY.deref();
-            register_int_counter_with_registry!(
-                "aws_sdk_retry_counts",
-                "Total number of aws sdk retry happens",
-                registry
-            )
-            .unwrap()
-        });
-
-        Self {
-            aws_sdk_retry_counts: AWS_SDK_RETRY_COUNTS.deref().clone(),
-        }
-    }
-}