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feat(otlp)!: support raw delta exponential histograms (#9754)

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* feat(otlp): support raw delta exponential histograms

Signed-off-by: shuiyisong <xixing.sys@gmail.com>

* fix(otlp): guard point accounting and benchmark metrics ingestion

Signed-off-by: shuiyisong <xixing.sys@gmail.com>

* fix: remove otlp_metric_compat logic

Signed-off-by: shuiyisong <xixing.sys@gmail.com>

* perf(otlp): cache physical schema lookups during metric preflight

Signed-off-by: shuiyisong <xixing.sys@gmail.com>

* chore: minor rename

Signed-off-by: shuiyisong <xixing.sys@gmail.com>

* perf(otlp): batch metric rows and reuse schema validation

Signed-off-by: shuiyisong <xixing.sys@gmail.com>

* chore: comments

Signed-off-by: shuiyisong <xixing.sys@gmail.com>

* fix: replace super in import path

Signed-off-by: shuiyisong <xixing.sys@gmail.com>

---------

Signed-off-by: shuiyisong <xixing.sys@gmail.com>
This commit is contained in:
shuiyisong
2026-10-22 13:36:30 +00:00
committed by GitHub
parent bb3f07b482
commit 2eff52c757
45 changed files with 5051 additions and 1014 deletions
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src/common/frontend/src/metrics.rs
+4 -5
View File
@@ -14,12 +14,12 @@
//! Cache lookup counters shared by frontend, pipeline, and protocol handlers.
//!
//! The `type` label identifies `otlp_trace_aux`, `otlp_metrics_legacy`,
//! The `type` label identifies `otlp_trace_aux`,
//! `pipeline_table`, `pipeline`, `pipeline_original`, `pipeline_failover`, or
//! `mysql_prepared_stmt`. Counters aggregate across catalogs and connections.
//! Trace lookups count distinct service/operation keys once per request, excluding
//! rechecks; legacy metric lookups count each requested metric name. Pipeline
//! loaders count successful coalesced waiters as hits and failed loads as misses.
//! rechecks. Pipeline loaders count successful coalesced waiters as hits and
//! failed loads as misses.
//! Failover counts one outcome after resolving all candidate schemas; an ambiguous
//! result is a miss. Table and prepared-statement caches count each lookup.
//! Both outcomes for all known caches are exported from the first metric update.
@@ -27,9 +27,8 @@
use lazy_static::lazy_static;
use prometheus::{IntCounterVec, register_int_counter_vec};
const CACHE_TYPES: [&str; 7] = [
const CACHE_TYPES: [&str; 6] = [
"otlp_trace_aux",
"otlp_metrics_legacy",
"pipeline_table",
"pipeline",
"pipeline_original",
src/common/query/src/prelude.rs
-2
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@@ -91,8 +91,6 @@ pub fn greptime_native_histogram() -> &'static str {
const GREPTIME_TIMESTAMP: &str = "greptime_timestamp";
/// Default value column name constant for backward compatibility.
const GREPTIME_VALUE: &str = "greptime_value";
/// Default counter column name for OTLP metrics (legacy mode).
pub const GREPTIME_COUNT: &str = "greptime_count";
/// Stored series label that opts ordinary float samples into raw-delta math.
pub const OTLP_AGGREGATION_TEMPORALITY_LABEL: &str = "otlp_aggregation_temporality";
/// Authoritative raw-delta value for [`OTLP_AGGREGATION_TEMPORALITY_LABEL`].