From d877bff7dc2ff037d69b4e19b0d072c05baccd78 Mon Sep 17 00:00:00 2001 From: Adrian Todorov Date: Tue, 10 May 2016 17:33:08 +0200 Subject: [PATCH] initial commit --- LICENSE.txt | 674 +++++++++++++++++++++++++++++++++++++++ README.md | 72 +++++ vsphere-influxdb-go.go | 586 ++++++++++++++++++++++++++++++++++ vsphere-influxdb-go.json | 69 ++++ 4 files changed, 1401 insertions(+) create mode 100644 LICENSE.txt create mode 100644 README.md create mode 100644 vsphere-influxdb-go.go create mode 100644 vsphere-influxdb-go.json diff --git a/LICENSE.txt b/LICENSE.txt new file mode 100644 index 0000000..94a9ed0 --- /dev/null +++ b/LICENSE.txt @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..a1ed8ea --- /dev/null +++ b/README.md @@ -0,0 +1,72 @@ +# Collect VMware vSphere, vCenter and ESXi performance metrics and send them to InfluxDB + +# Extenal dependencies + +* [govmomi](https://github.com/vmware/govmomi) +* [influxDB go client](https://github.com/influxdata/influxdb/tree/master/client/v2) + +You'll need to go get them both for the script to work: +``` +go get github.com/vmware/govmomi +go get github.com/influxdata/influxdb/tree/master/client/v2 + +``` + +# Run + + +``` + +go get github.com/oxalide/vsphere-influxdb-go + +``` +This will install the project in your $GOBIN($GOPATH/bin). If you have appended $GOBIN to your $PATH, you will be able to call it directly. Otherwise, you'll have to call it with its full path. +Example: +``` +vsphere-influxdb-go +``` +or : +``` +$GOBIN/vsphere-influxdb-go +``` + + +# Configure + +You'll need a JSON file with all your vCenters/ESXi to connect to, the InfluxDB connection details(url, username/password, database to use), and the metrics to collect. + +If you set a domain, it will be automaticaly removed from the names of the found objects. + +Metrics collected are defined by associating ObjectType groups with Metric groups. +To see all available metrics, check out [this](http://www.virten.net/2015/05/vsphere-6-0-performance-counter-description/) page. + +Note: Not all metrics are available directly, you might need to change your metric collection level. +A table with the level needed for each metric is availble [here](http://www.virten.net/2015/05/which-performance-counters-are-available-in-each-statistic-level/), and you can find a PowerCLI script that changes the collect level [here](http://www.valcolabs.com/2012/02/06/modify-historical-statistics-level-using-powercli/) + +An example of configuration file is [here](./vsphere-influxdb-go.json). + +You need to place it at /etc/*binaryname*.json (/etc/vsphere-influxdb-go.json by default) + + +# Run as a service + +Create a crontab to run it every X minutes(one minute is fine - in our case, ~30 vCenters, ~100 ESXi and ~1400 VMs take approximately 25s to collect all metrics - rather impressive, i might add). +``` +* * * * * $HOME/work/go/bin/vsphere-influxdb-go +``` + + +# TODO +* Add service discovery(or probably something like [Viper](https://github.com/spf13/viper) for easier and more flexible configuration with multiple backends) +* Add extra tags(cluster for the hosts, etc.) + +# Contributing +You are welcome to contribute! + +# License + +The original project, upon which this one is based, is written by cblomart, sends the data to Graphite, and is available [here](https://github.com/cblomart/vsphere-graphite). + +This one is licensed under GPLv3. You can find a copy of the license in [LICENSE.txt](./LICENSE.txt) + + diff --git a/vsphere-influxdb-go.go b/vsphere-influxdb-go.go new file mode 100644 index 0000000..c9a6cf8 --- /dev/null +++ b/vsphere-influxdb-go.go @@ -0,0 +1,586 @@ +/* Copyright 2016 Adrian Todorov, Oxalide ato@oxalide.com + Original project author: https://github.com/cblomart + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . + +*/ + +package main + +import ( + "encoding/json" + "fmt" + "log" + "math" + "net/url" + "os" + "path" + "strings" + "time" + + "golang.org/x/net/context" + + "github.com/vmware/govmomi" + "github.com/vmware/govmomi/vim25/methods" + "github.com/vmware/govmomi/vim25/mo" + "github.com/vmware/govmomi/vim25/types" + "github.com/vmware/govmomi/property" + + influxclient "github.com/influxdata/influxdb/client/v2" +) + +const ( + // name of the service + name = "vsphere-influxdb" + description = "send vsphere stats to influxdb" +) + +// Configuration +type Configuration struct { + VCenters []*VCenter + Metrics []Metric + Interval int + Domain string + InfluxDB InfluxDB +} + +// InfluxDB description +type InfluxDB struct { + Hostname string + Username string + Password string + Database string +} + +// VCenter description +type VCenter struct { + Hostname string + Username string + Password string + MetricGroups []*MetricGroup +} + +// Metric Definition +type MetricDef struct { + Metric string + Instances string + Key int32 +} + +// Metrics description in config + var vm_refs []types.ManagedObjectReference +type Metric struct { + ObjectType []string + Definition []MetricDef +} + +// Metric Grouping for retrieval +type MetricGroup struct { + ObjectType string + Metrics []MetricDef + Mor []types.ManagedObjectReference +} + +// Informations to query about an entity +type EntityQuery struct { + Name string + Entity types.ManagedObjectReference + Metrics []int32 +} + + +// A few global variables +var dependencies = []string{} + +var stdlog, errlog *log.Logger + + + +func (vcenter *VCenter) Connect() (*govmomi.Client, error) { + // Prepare vCenter Connections + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + stdlog.Println("connecting to vcenter: " + vcenter.Hostname) + u, err := url.Parse("https://" + vcenter.Username + ":" + vcenter.Password + "@" + vcenter.Hostname + "/sdk") + if err != nil { + errlog.Println("Could not parse vcenter url: ", vcenter.Hostname) + errlog.Println("Error: ", err) + return nil, err + } + client, err := govmomi.NewClient(ctx, u, true) + if err != nil { + errlog.Println("Could not connect to vcenter: ", vcenter.Hostname) + errlog.Println("Error: ", err) + return nil, err + } + return client, nil +} + +// Initialise vcenter +func (vcenter *VCenter) Init(config Configuration) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + client, err := vcenter.Connect() + defer client.Logout(ctx) + if err != nil { + errlog.Println("Could not connect to vcenter: ", vcenter.Hostname) + errlog.Println("Error: ", err) + return + } + var perfmanager mo.PerformanceManager + err = client.RetrieveOne(ctx, *client.ServiceContent.PerfManager, nil, &perfmanager) + if err != nil { + errlog.Println("Could not get performance manager") + errlog.Println("Error: ", err) + return + } + for _, perf := range perfmanager.PerfCounter { + groupinfo := perf.GroupInfo.GetElementDescription() + nameinfo := perf.NameInfo.GetElementDescription() + identifier := groupinfo.Key + "." + nameinfo.Key + "." + fmt.Sprint(perf.RollupType) + for _, metric := range config.Metrics { + for _, metricdef := range metric.Definition { + if metricdef.Metric == identifier { + metricd := MetricDef{Metric: metricdef.Metric, Instances: metricdef.Instances, Key: perf.Key} + for _, mtype := range metric.ObjectType { + added := false + for _, metricgroup := range vcenter.MetricGroups { + if metricgroup.ObjectType == mtype { + metricgroup.Metrics = append(metricgroup.Metrics, metricd) + added = true + break + } + } + if added == false { + metricgroup := MetricGroup{ObjectType: mtype, Metrics: []MetricDef{metricd}} + vcenter.MetricGroups = append(vcenter.MetricGroups, &metricgroup) + } + } + } + } + } + } +} + +// Query a vcenter +func (vcenter *VCenter) Query(config Configuration, InfluxDBClient influxclient.Client) { + stdlog.Println("Setting up query inventory of vcenter: ", vcenter.Hostname) + + // Create the contect + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + // Get the client + client, err := vcenter.Connect() + defer client.Logout(ctx) + if err != nil { + errlog.Println("Could not connect to vcenter: ", vcenter.Hostname) + errlog.Println("Error: ", err) + return + } + + // Create the view manager + var viewManager mo.ViewManager + err = client.RetrieveOne(ctx, *client.ServiceContent.ViewManager, nil, &viewManager) + if err != nil { + errlog.Println("Could not get view manager from vcenter: " + vcenter.Hostname) + errlog.Println("Error: ", err) + return + } + + // Get the Datacenters from root folder + var rootFolder mo.Folder + err = client.RetrieveOne(ctx, client.ServiceContent.RootFolder, nil, &rootFolder) + if err != nil { + errlog.Println("Could not get root folder from vcenter: " + vcenter.Hostname) + errlog.Println("Error: ", err) + return + } + + datacenters := []types.ManagedObjectReference{} + for _, child := range rootFolder.ChildEntity { + if child.Type == "Datacenter" { + datacenters = append(datacenters, child) + } + } + // Get intresting object types from specified queries + objectTypes := []string{} + for _, group := range vcenter.MetricGroups { + objectTypes = append(objectTypes, group.ObjectType) + } + objectTypes = append(objectTypes, "ClusterComputeResource") + + // Loop trought datacenters and create the intersting object reference list + mors := []types.ManagedObjectReference{} + for _, datacenter := range datacenters { + // Create the CreateContentView request + req := types.CreateContainerView{This: viewManager.Reference(), Container: datacenter, Type: objectTypes, Recursive: true} + res, err := methods.CreateContainerView(ctx, client.RoundTripper, &req) + if err != nil { + errlog.Println("Could not create container view from vcenter: " + vcenter.Hostname) + errlog.Println("Error: ", err) + continue + } + // Retrieve the created ContentView + var containerView mo.ContainerView + err = client.RetrieveOne(ctx, res.Returnval, nil, &containerView) + if err != nil { + errlog.Println("Could not get container view from vcenter: " + vcenter.Hostname) + errlog.Println("Error: ", err) + continue + } + // Add found object to object list + mors = append(mors, containerView.View...) + } + // Create MORS for each object type + vm_refs := []types.ManagedObjectReference{} + host_refs := []types.ManagedObjectReference{} + cluster_refs := []types.ManagedObjectReference{} + + new_mors := []types.ManagedObjectReference{} + + // Assign each MORS type to a specific array + for _, mor := range mors { + if mor.Type == "VirtualMachine" { + vm_refs = append(vm_refs, mor) + new_mors = append(new_mors, mor) + } else if mor.Type == "HostSystem" { + host_refs = append(host_refs, mor) + new_mors = append(new_mors, mor) + } else if mor.Type == "ClusterComputeResource" { + cluster_refs = append(cluster_refs, mor) + } + } + // Copy the mors without the clusters + mors = new_mors + + pc := property.DefaultCollector(client.Client) + + // Retrieve properties for all vms + var vmmo []mo.VirtualMachine + err = pc.Retrieve(ctx, vm_refs, []string{"summary"}, &vmmo) + if err != nil { + fmt.Println(err) + return + } + + // Retrieve properties for hosts + var hsmo []mo.HostSystem + err = pc.Retrieve(ctx, host_refs, []string{"summary"}, &hsmo) + if err != nil { + fmt.Println(err) + return + } + + // Initialize the map that will hold the VM MOR to cluster reference + vmToCluster := make(map[types.ManagedObjectReference]string) + + // Retrieve properties for clusters, if any + if len(cluster_refs) > 0 { + var clmo []mo.ClusterComputeResource + err = pc.Retrieve(ctx, cluster_refs, []string{"name", "configuration"}, &clmo) + if err != nil { + fmt.Println(err) + return + } + for _, cl := range clmo { + for _, vm := range cl.Configuration.DasVmConfig { + vmToCluster[vm.Key] = cl.Name + } + } + } + + // Initialize the map that will hold all extra tags + vm_summary := make(map[types.ManagedObjectReference]map[string]string) + + // Assign extra details per VM in vm_summary + for _,vm := range vmmo { + vm_summary[vm.Self] = make(map[string]string) + summary := fmt.Sprintln(vm.Summary.Config) + if summary != "" { + vmc := strings.Split(fmt.Sprintln(vm.Summary.Config), " ") + vm_summary[vm.Self]["datastore"] = vmc[3][1:len(vmc[3])-1] + if vmToCluster[vm.Self] != "" { + vm_summary[vm.Self]["cluster"] = vmToCluster[vm.Self] + } + } + } + + // get object names + objects := []mo.ManagedEntity{} + + //object for propery collection + propSpec := &types.PropertySpec{Type: "ManagedEntity", PathSet: []string{"name"}} + var objectSet []types.ObjectSpec + for _, mor := range mors { + objectSet = append(objectSet, types.ObjectSpec{Obj: mor, Skip: types.NewBool(false)}) + } + + //retrieve name property + propreq := types.RetrieveProperties{SpecSet: []types.PropertyFilterSpec{{ObjectSet: objectSet, PropSet: []types.PropertySpec{*propSpec}}}} + propres, err := client.PropertyCollector().RetrieveProperties(ctx, propreq) + if err != nil { + errlog.Println("Could not retrieve object names from vcenter: " + vcenter.Hostname) + errlog.Println("Error: ", err) + return + } + + //load retrieved properties + err = mo.LoadRetrievePropertiesResponse(propres, &objects) + if err != nil { + errlog.Println("Could not retrieve object names from vcenter: " + vcenter.Hostname) + errlog.Println("Error: ", err) + return + } + + //create a map to resolve object names + morToName := make(map[types.ManagedObjectReference]string) + for _, object := range objects { + morToName[object.Self] = object.Name + } + + //create a map to resolve metric names + metricToName := make(map[int32]string) + for _, metricgroup := range vcenter.MetricGroups { + for _, metricdef := range metricgroup.Metrics { + metricToName[metricdef.Key] = metricdef.Metric + } + } + + // Create Queries from interesting objects and requested metrics + + queries := []types.PerfQuerySpec{} + + // Common parameters + intervalIdint := 20 + var intervalId int32 + intervalId = int32(intervalIdint) + + endTime := time.Now().Add(time.Duration(-1) * time.Second) + startTime := endTime.Add(time.Duration(-config.Interval) * time.Second) + + // Parse objects + for _, mor := range mors { + metricIds := []types.PerfMetricId{} + for _, metricgroup := range vcenter.MetricGroups { + if metricgroup.ObjectType == mor.Type { + for _, metricdef := range metricgroup.Metrics { + metricIds = append(metricIds, types.PerfMetricId{CounterId: metricdef.Key, Instance: metricdef.Instances}) + } + } + } + queries = append(queries, types.PerfQuerySpec{Entity: mor, StartTime: &startTime, EndTime: &endTime, MetricId: metricIds, IntervalId: intervalId}) + } + + // Query the performances + perfreq := types.QueryPerf{This: *client.ServiceContent.PerfManager, QuerySpec: queries} + perfres, err := methods.QueryPerf(ctx, client.RoundTripper, &perfreq) + if err != nil { + errlog.Println("Could not request perfs from vcenter: " + vcenter.Hostname) + errlog.Println("Error: ", err) + return + } + + // Get the result + vcName := strings.Replace(vcenter.Hostname, config.Domain, "", -1) + +//Influx batch points + bp,err := influxclient.NewBatchPoints(influxclient.BatchPointsConfig { + Database: config.InfluxDB.Database, + Precision: "s", + }) + if err != nil { + errlog.Println(err) + } + + for _, base := range perfres.Returnval { + pem := base.(*types.PerfEntityMetric) + entityName := strings.ToLower(pem.Entity.Type) + name := strings.ToLower(strings.Replace(morToName[pem.Entity], config.Domain, "", -1)) + + //Create map for InfluxDB fields + fields := make(map[string]interface{}) +// special_fields := make(map[string]map[string]interface{}) + + // Create map for InfluxDB tags + tags := map[string]string{"host": vcName, "name": name} + + // Add extra per VM tags + if summary, ok := vm_summary[pem.Entity]; ok { + for key, tag := range summary { + tags[key] = tag + } + } + + for _, baseserie := range pem.Value { + serie := baseserie.(*types.PerfMetricIntSeries) + metricName := strings.ToLower(metricToName[serie.Id.CounterId]) + influxMetricName := strings.Replace(metricName, ".", "_", -1) +// instanceName := strings.ToLower(strings.Replace(serie.Id.Instance, ".", "_", -1)) + + var value int64 = -1 + if strings.HasSuffix(metricName, ".average") { + value = average(serie.Value...) + } else if strings.HasSuffix(metricName, ".maximum") { + value = max(serie.Value...) + } else if strings.HasSuffix(metricName, ".minimum") { + value = min(serie.Value...) + }else if strings.HasSuffix(metricName, ".latest") { + value = serie.Value[len(serie.Value)-1] + } else if strings.HasSuffix(metricName, ".summation") { + value = sum(serie.Value...) + } + + // Add to fields + + + // TODO one day + // if this is a specific metric for a specific instance(CPU, disk, network interface), add to points directly + // if len(instanceName) > 0 { + // special_fields[instanceName][influxMetricName] = value + // + // else: + if field, ok := fields[influxMetricName]; ok { + fields[influxMetricName] = value + field.(int64) + } else { + fields[influxMetricName] = value + } + + } + //create InfluxDB points + pt,err := influxclient.NewPoint(entityName, tags, fields, time.Now()) + if err != nil { + errlog.Println(err) + } + bp.AddPoint(pt) +/* + if len(special_fields) > 0 { + for instance, metrics := special_fields { + tags["instance"] = instance + pt,err := influxclient.NewPoint(strings.Split(metrics[0], "_")[0], tags, metrics, time.Now()) + if err != nil { + errlog.Println(err) + } + + } + } +*/ + } + //InfluxDB send + err = InfluxDBClient.Write(bp) + if err != nil { + errlog.Println(err) + } else { + stdlog.Println("sent data to Influxdb") + } + +} + +func min(n ...int64) int64 { + var min int64 = -1 + for _, i := range n { + if i >= 0 { + if min == -1 { + min = i + } else { + if i < min { + min = i + } + } + } + } + return min +} + +func max(n ...int64) int64 { + var max int64 = -1 + for _, i := range n { + if i >= 0 { + if max == -1 { + max = i + } else { + if i > max { + max = i + } + } + } + } + return max +} + +func sum(n ...int64) int64 { + var total int64 = 0 + for _, i := range n { + if i > 0 { + total += i + } + } + return total +} + +func average(n ...int64) int64 { + var total int64 = 0 + var count int64 = 0 + for _, i := range n { + if i >= 0 { + count += 1 + total += i + } + } + favg := float64(total) / float64(count) + return int64(math.Floor(favg + .5)) +} + +func queryVCenter(vcenter VCenter, config Configuration, InfluxDBClient influxclient.Client) { + stdlog.Println("Querying vcenter") + vcenter.Query(config, InfluxDBClient) + +} + +func main() { + stdlog = log.New(os.Stdout, "", log.Ldate|log.Ltime) + errlog = log.New(os.Stderr, "", log.Ldate|log.Ltime) + + stdlog.Println("Starting :", path.Base(os.Args[0])) + // read the configuration + file, err := os.Open("/etc/" + path.Base(os.Args[0]) + ".json") + if err != nil { + errlog.Println("Could not open configuration file") + errlog.Println(err) + } + jsondec := json.NewDecoder(file) + config := Configuration{} + err = jsondec.Decode(&config) + if err != nil { + errlog.Println("Could not decode configuration file") + errlog.Println(err) + + } + for _, vcenter := range config.VCenters { + vcenter.Init(config) + } + InfluxDBClient, err := influxclient.NewHTTPClient(influxclient.HTTPConfig { + Addr: config.InfluxDB.Hostname, + Username: config.InfluxDB.Username, + Password: config.InfluxDB.Password, + }) + if err != nil { + errlog.Println("Could not connect to InfluxDB") + errlog.Println(err) + } else { + stdlog.Println("Successfully connected to Influx\n") + } + for _, vcenter := range config.VCenters { + queryVCenter(*vcenter, config, InfluxDBClient) + } +} diff --git a/vsphere-influxdb-go.json b/vsphere-influxdb-go.json new file mode 100644 index 0000000..411dc9b --- /dev/null +++ b/vsphere-influxdb-go.json @@ -0,0 +1,69 @@ +{ + "Domain": ".lab", + "Interval": 60, + "VCenters": [ + { "Username": "monitoring", "Password": "monixx", "Hostname": "vcenter-01.dc-01.lab" }, + { "Username": "monitoring", "Password": "monixx", "Hostname": "vcenter-01.dc-02.lab" }, + { "Username": "monitoring", "Password": "monixx", "Hostname": "vcenter-02.dc-02.lab" }, + { "Username": "monitoring", "Password": "monixx", "Hostname": "vcenter-01.home.lab" } + + ], + "InfluxDB": { + "Hostname": "http://influxdb-01.dc-01.lab:8086", + "Username": "vm", + "Password": "vmware334", + "Database": "vmware_performance" + }, + "Metrics": [ + { + "ObjectType": [ "VirtualMachine", "HostSystem" ], + "Definition": [ + { "Metric": "cpu.usage.average", "Instances": "*" }, + { "Metric": "cpu.usage.maximum", "Instances": "*" }, + { "Metric": "cpu.usagemhz.average", "Instances": "*" }, + { "Metric": "cpu.usagemhz.maximum", "Instances": "*" }, + { "Metric": "cpu.wait.summation", "Instances": "*" }, + { "Metric": "cpu.system.summation", "Instances": "*" }, + { "Metric": "cpu.ready.summation", "Instances": "*" }, + { "Metric": "mem.usage.average", "Instances": "*" }, + { "Metric": "mem.usage.maximum", "Instances": "*" }, + { "Metric": "mem.consumed.average", "Instances": "*" }, + { "Metric": "mem.consumed.maximum", "Instances": "*" }, + { "Metric": "mem.active.average", "Instances": "*" }, + { "Metric": "mem.active.maximum", "Instances": "*" }, + { "Metric": "mem.vmmemctl.average", "Instances": "*" }, + { "Metric": "mem.vmmemctl.maximum", "Instances": "*" }, + { "Metric": "mem.totalCapacity.average", "Instances": "*" }, + { "Metric": "net.packetsRx.summation", "Instances": "*" }, + { "Metric": "net.packetsTx.summation", "Instances": "*" }, + { "Metric": "net.throughput.usage.average", "Instances": "*" }, + { "Metric": "net.received.average", "Instances": "*" }, + { "Metric": "net.transmitted.average", "Instances": "*" }, + { "Metric": "net.throughput.usage.nfs.average", "Instances": "*" }, + { "Metric": "datastore.numberReadAveraged.average", "Instances": "*" }, + { "Metric": "datastore.numberWriteAveraged.average", "Instances": "*" }, + { "Metric": "datastore.read.average", "Instances": "*" }, + { "Metric": "datastore.write.average", "Instances": "*" }, + { "Metric": "datastore.totalReadLatency.average", "Instances": "*" }, + { "Metric": "datastore.totalWriteLatency.average", "Instances": "*" }, + { "Metric": "mem.capacity.provisioned.average", "Instances": "*"}, + { "Metric": "cpu.corecount.provisioned.average", "Instances": "*" } + ] + }, + { + "ObjectType": [ "VirtualMachine" ], + "Definition": [ + { "Metric": "datastore.datastoreVMObservedLatency.latest", "Instances": "*" } + ] + }, + { + "ObjectType": [ "HostSystem" ], + "Definition": [ + { "Metric": "disk.maxTotalLatency.latest", "Instances": "" }, + { "Metric": "disk.numberReadAveraged.average", "Instances": "*" }, + { "Metric": "disk.numberWriteAveraged.average", "Instances": "*" }, + { "Metric": "net.throughput.contention.summation", "Instances": "*" } + ] + } + ] +}