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https://gitee.com/milvus-io/milvus.git
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c3fe6473b8
issue: #45640 - log may be dropped if the underlying file system is busy. - use async write syncer to avoid the log operation block the milvus major system. - remove some log dependency from the until function to avoid dependency-loop. --------- Signed-off-by: chyezh <chyezh@outlook.com>
86 lines
2.9 KiB
Go
86 lines
2.9 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package metrics
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import (
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"sync"
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"github.com/prometheus/client_golang/prometheus"
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)
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const (
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loggingMetricSubsystem = "logging"
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)
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var (
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LoggingMetricsRegisterOnce sync.Once
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LoggingPendingWriteLength = prometheus.NewGauge(prometheus.GaugeOpts{
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Namespace: milvusNamespace,
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Subsystem: loggingMetricSubsystem,
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Name: "pending_write_length",
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Help: "The length of pending writes in the logging buffer",
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})
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LoggingPendingWriteBytes = prometheus.NewGauge(prometheus.GaugeOpts{
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Namespace: milvusNamespace,
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Subsystem: loggingMetricSubsystem,
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Name: "pending_write_bytes",
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Help: "The total bytes of pending writes in the logging buffer",
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})
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LoggingTruncatedWrites = prometheus.NewGauge(prometheus.GaugeOpts{
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Namespace: milvusNamespace,
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Subsystem: loggingMetricSubsystem,
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Name: "truncated_writes",
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Help: "The number of truncated writes due to exceeding the max bytes per log",
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})
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LoggingTruncatedWriteBytes = prometheus.NewGauge(prometheus.GaugeOpts{
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Namespace: milvusNamespace,
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Subsystem: loggingMetricSubsystem,
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Name: "truncated_write_bytes",
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Help: "The total bytes of truncated writes due to exceeding the max bytes per log",
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})
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LoggingDroppedWrites = prometheus.NewGauge(prometheus.GaugeOpts{
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Namespace: milvusNamespace,
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Subsystem: loggingMetricSubsystem,
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Name: "dropped_writes",
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Help: "The number of dropped writes due to buffer full or write timeout",
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})
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LoggingIOFailure = prometheus.NewGauge(prometheus.GaugeOpts{
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Namespace: milvusNamespace,
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Subsystem: loggingMetricSubsystem,
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Name: "io_failures",
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Help: "The number of IO failures due to underlying write syncer is blocked or write timeout",
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})
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)
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// RegisterLoggingMetrics registers logging metrics
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func RegisterLoggingMetrics(registry *prometheus.Registry) {
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LoggingMetricsRegisterOnce.Do(func() {
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registry.MustRegister(LoggingPendingWriteLength)
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registry.MustRegister(LoggingPendingWriteBytes)
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registry.MustRegister(LoggingTruncatedWrites)
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registry.MustRegister(LoggingTruncatedWriteBytes)
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registry.MustRegister(LoggingDroppedWrites)
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registry.MustRegister(LoggingIOFailure)
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})
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}
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