mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
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a293b2bf94
Travis seems to be having issues pulling deps, so we'll have to check in the vendor directory and prevent the makefile from trying to regenerate it normally.
89 lines
2.5 KiB
Go
89 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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