mirror of
https://github.com/rancher/norman.git
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90a67b5678
To enhance operatability for the service using norman framework, It's better to expose internal state as detail as possible. This is the just starting point but at least which handler is executed often and which handler with which key's execution is often failed metrics is very useful to spot the place operator have to dig in when something happened. So this commit added 2 metrics. 1: handler execution total count 2: handler execution failure total count
90 lines
2.5 KiB
Go
90 lines
2.5 KiB
Go
// Copyright 2018 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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 nfs
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import (
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"bufio"
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"fmt"
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"io"
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"strings"
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"github.com/prometheus/procfs/internal/util"
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)
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// ParseServerRPCStats returns stats read from /proc/net/rpc/nfsd
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func ParseServerRPCStats(r io.Reader) (*ServerRPCStats, error) {
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stats := &ServerRPCStats{}
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scanner := bufio.NewScanner(r)
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for scanner.Scan() {
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line := scanner.Text()
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parts := strings.Fields(scanner.Text())
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// require at least <key> <value>
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if len(parts) < 2 {
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return nil, fmt.Errorf("invalid NFSd metric line %q", line)
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}
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label := parts[0]
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var values []uint64
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var err error
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if label == "th" {
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if len(parts) < 3 {
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return nil, fmt.Errorf("invalid NFSd th metric line %q", line)
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}
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values, err = util.ParseUint64s(parts[1:3])
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} else {
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values, err = util.ParseUint64s(parts[1:])
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}
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if err != nil {
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return nil, fmt.Errorf("error parsing NFSd metric line: %s", err)
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}
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switch metricLine := parts[0]; metricLine {
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case "rc":
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stats.ReplyCache, err = parseReplyCache(values)
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case "fh":
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stats.FileHandles, err = parseFileHandles(values)
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case "io":
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stats.InputOutput, err = parseInputOutput(values)
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case "th":
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stats.Threads, err = parseThreads(values)
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case "ra":
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stats.ReadAheadCache, err = parseReadAheadCache(values)
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case "net":
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stats.Network, err = parseNetwork(values)
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case "rpc":
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stats.ServerRPC, err = parseServerRPC(values)
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case "proc2":
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stats.V2Stats, err = parseV2Stats(values)
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case "proc3":
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stats.V3Stats, err = parseV3Stats(values)
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case "proc4":
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stats.ServerV4Stats, err = parseServerV4Stats(values)
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case "proc4ops":
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stats.V4Ops, err = parseV4Ops(values)
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default:
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return nil, fmt.Errorf("unknown NFSd metric line %q", metricLine)
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}
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if err != nil {
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return nil, fmt.Errorf("errors parsing NFSd metric line: %s", err)
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}
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}
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if err := scanner.Err(); err != nil {
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return nil, fmt.Errorf("error scanning NFSd file: %s", err)
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}
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return stats, nil
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}
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