prometheusmetricshost-metricsmachine-metricsnode-metricsprocfsprometheus-exportersystem-informationsystem-metrics
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176 lines
5.4 KiB
176 lines
5.4 KiB
// Copyright 2016 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 collector |
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import ( |
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"errors" |
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"io/ioutil" |
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"os" |
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"regexp" |
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"strconv" |
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"strings" |
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"github.com/prometheus/client_golang/prometheus" |
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"github.com/prometheus/common/log" |
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) |
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var ( |
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netLineRE = regexp.MustCompile(`^net \d+ (\d+) (\d+) (\d+)$`) |
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rpcLineRE = regexp.MustCompile(`^rpc (\d+) (\d+) (\d+)$`) |
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procLineRE = regexp.MustCompile(`^proc(\d+) \d+ (\d+( \d+)*)$`) |
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nfsProcedures = map[string][]string{ |
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"2": []string{ |
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"null", "getattr", "setattr", "root", "lookup", |
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"readlink", "read", "writecache", "write", "create", |
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"remove", "rename", "link", "symlink", "mkdir", |
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"rmdir", "readdir", "statfs", |
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}, |
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"3": []string{ |
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"null", "getattr", "setattr", "lookup", "access", |
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"readlink", "read", "write", "create", "mkdir", |
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"symlink", "mknod", "remove", "rmdir", "rename", |
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"link", "readdir", "readdirplus", "fsstat", "fsinfo", |
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"pathconf", "commit", |
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}, |
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"4": []string{ |
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"null", "read", "write", "commit", "open", |
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"open_confirm", "open_noattr", "open_downgrade", |
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"close", "setattr", "fsinfo", "renew", "setclientid", |
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"setclientid_confirm", "lock", "lockt", "locku", |
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"access", "getattr", "lookup", "lookup_root", "remove", |
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"rename", "link", "symlink", "create", "pathconf", |
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"statfs", "readlink", "readdir", "server_caps", |
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"delegreturn", "getacl", "setacl", "fs_locations", |
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"release_lockowner", "secinfo", "fsid_present", |
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"exchange_id", "create_session", "destroy_session", |
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"sequence", "get_lease_time", "reclaim_complete", |
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"layoutget", "getdeviceinfo", "layoutcommit", |
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"layoutreturn", "secinfo_no_name", "test_stateid", |
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"free_stateid", "getdevicelist", |
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"bind_conn_to_session", "destroy_clientid", "seek", |
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"allocate", "deallocate", "layoutstats", "clone", |
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"copy", |
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}, |
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} |
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nfsNetReadsDesc = prometheus.NewDesc( |
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prometheus.BuildFQName(Namespace, "nfs", "net_reads"), |
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"Number of reads at the network layer.", |
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[]string{"protocol"}, |
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nil, |
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) |
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nfsNetConnectionsDesc = prometheus.NewDesc( |
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prometheus.BuildFQName(Namespace, "nfs", "net_connections"), |
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"Number of connections at the network layer.", |
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[]string{"protocol"}, |
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nil, |
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) |
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nfsRpcOperationsDesc = prometheus.NewDesc( |
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prometheus.BuildFQName(Namespace, "nfs", "rpc_operations"), |
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"Number of RPCs performed.", |
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nil, |
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nil, |
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) |
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nfsRpcRetransmissionsDesc = prometheus.NewDesc( |
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prometheus.BuildFQName(Namespace, "nfs", "rpc_retransmissions"), |
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"Number of RPC transmissions performed.", |
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nil, |
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nil, |
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) |
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nfsRpcAuthenticationRefreshesDesc = prometheus.NewDesc( |
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prometheus.BuildFQName(Namespace, "nfs", "rpc_authentication_refreshes"), |
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"Number of RPC authentication refreshes performed.", |
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nil, |
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nil, |
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) |
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nfsProceduresDesc = prometheus.NewDesc( |
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prometheus.BuildFQName(Namespace, "nfs", "procedures"), |
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"Number of NFS procedures invoked.", |
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[]string{"version", "procedure"}, |
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nil, |
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) |
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) |
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type nfsCollector struct{} |
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func init() { |
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Factories["nfs"] = NewNfsCollector |
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} |
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func NewNfsCollector() (Collector, error) { |
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return &nfsCollector{}, nil |
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} |
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func (c *nfsCollector) Update(ch chan<- prometheus.Metric) (err error) { |
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statsFile := procFilePath("net/rpc/nfs") |
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content, err := ioutil.ReadFile(statsFile) |
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if err != nil { |
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if os.IsNotExist(err) { |
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log.Debugf("Not collecting NFS statistics, as %s does not exist: %s", statsFile) |
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return nil |
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} |
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return err |
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} |
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for _, line := range strings.Split(string(content), "\n") { |
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if fields := netLineRE.FindStringSubmatch(line); fields != nil { |
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value, _ := strconv.ParseFloat(fields[1], 64) |
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ch <- prometheus.MustNewConstMetric( |
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nfsNetReadsDesc, prometheus.CounterValue, |
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value, "udp") |
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value, _ = strconv.ParseFloat(fields[2], 64) |
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ch <- prometheus.MustNewConstMetric( |
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nfsNetReadsDesc, prometheus.CounterValue, |
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value, "tcp") |
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value, _ = strconv.ParseFloat(fields[3], 64) |
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ch <- prometheus.MustNewConstMetric( |
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nfsNetConnectionsDesc, prometheus.CounterValue, |
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value, "tcp") |
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} else if fields := rpcLineRE.FindStringSubmatch(line); fields != nil { |
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value, _ := strconv.ParseFloat(fields[1], 64) |
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ch <- prometheus.MustNewConstMetric( |
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nfsRpcOperationsDesc, |
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prometheus.CounterValue, value) |
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value, _ = strconv.ParseFloat(fields[2], 64) |
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ch <- prometheus.MustNewConstMetric( |
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nfsRpcRetransmissionsDesc, |
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prometheus.CounterValue, value) |
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value, _ = strconv.ParseFloat(fields[3], 64) |
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ch <- prometheus.MustNewConstMetric( |
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nfsRpcAuthenticationRefreshesDesc, |
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prometheus.CounterValue, value) |
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} else if fields := procLineRE.FindStringSubmatch(line); fields != nil { |
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version := fields[1] |
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for procedure, count := range strings.Split(fields[2], " ") { |
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value, _ := strconv.ParseFloat(count, 64) |
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ch <- prometheus.MustNewConstMetric( |
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nfsProceduresDesc, |
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prometheus.CounterValue, |
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value, |
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version, |
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nfsProcedures[version][procedure]) |
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} |
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} else if line != "" { |
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return errors.New("Failed to parse line: " + line) |
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} |
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} |
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return nil |
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}
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