mirror of https://github.com/hashicorp/consul
90 lines
2.5 KiB
Go
90 lines
2.5 KiB
Go
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// 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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