performancecounter: support yaml documents and tolerate collector errors

.run/all.run.xml

@@ -2,12 +2,12 @@
   <configuration default="false" name="all" type="GoApplicationRunConfiguration" factoryName="Go Application" folderName="run">
     <module name="windows_exporter" />
     <working_directory value="$PROJECT_DIR$" />
-    <parameters value="--web.listen-address=127.0.0.1:9182 --log.level=info --collectors.enabled=ad,adcs,adfs,cache,container,cpu,cpu_info,cs,dfsr,dhcp,diskdrive,dns,exchange,filetime,fsrmquota,hyperv,iis,license,logical_disk,logon,memory,mscluster,msmq,mssql,net,netframework,nps,os,pagefile,performancecounter,physical_disk,printer,process,remote_fx,scheduled_task,service,smb,smbclient,smtp,system,tcp,terminal_services,thermalzone,time,udp,update,vmware --debug.enabled" />
+    <parameters value="--web.listen-address=127.0.0.1:9182 --log.level=info --collectors.enabled=ad,adcs,adfs,cache,container,cpu,cpu_info,cs,dfsr,dhcp,diskdrive,dns,exchange,filetime,fsrmquota,hyperv,iis,license,logical_disk,logon,memory,mscluster,msmq,mssql,net,netframework,nps,os,pagefile,performancecounter,physical_disk,printer,process,remote_fx,scheduled_task,service,smb,smbclient,smtp,system,tcp,terminal_services,thermalzone,time,udp,update,vmware,performancecounter --debug.enabled --collector.performancecounter.objects='[{ &quot;name&quot;: &quot;memory&quot;, &quot;object&quot;: &quot;Memory&quot;, &quot;counters&quot;: [{ &quot;name&quot;:&quot;Cache Faults/sc&quot;, &quot;type&quot;:&quot;counter&quot; }]}]'" />
     <sudo value="true" />
     <kind value="PACKAGE" />
     <package value="github.com/prometheus-community/windows_exporter/cmd/windows_exporter" />
     <directory value="$PROJECT_DIR$" />
     <filePath value="$PROJECT_DIR$/exporter.go" />
     <method v="2" />
   </configuration>
-</component>
+</component>

cmd/windows_exporter/main.go

@@ -207,9 +207,11 @@ func run() int {
 	// Initialize collectors before loading
 	if err = collectors.Build(logger); err != nil {
 		for _, err := range utils.SplitError(err) {
-			logger.Warn("couldn't initialize collector",
+			logger.Error("couldn't initialize collector",
 				slog.Any("err", err),
 			)
+
+			return 1
 		}
 	}
 

config.yaml

@@ -1,9 +1,16 @@
 # example configuration file for windows_exporter
 
 collectors:
-  enabled: cpu,cpu_info,exchange,iis,logical_disk,logon,memory,net,os,process,remote_fx,service,system,tcp,time,terminal_services,textfile
+  enabled: cpu,cpu_info,exchange,iis,logical_disk,logon,memory,net,os,performancecounter,process,remote_fx,service,system,tcp,time,terminal_services,textfile
 collector:
   service:
     include: "windows_exporter"
+  performancecounter:
+    objects: |-
+      - name: memory
+        object: "Memory"
+        counters:
+          - name: "Cache Faults/sec"
+            type: "counter" # optional
 log:
   level: warn

docs/collector.performancecounter.md

@@ -13,9 +13,28 @@ The performancecounter collector exposes any configured metric.
 
 ### `--collector.performancecounter.objects`
 
-Objects is a list of objects to collect metrics from. The value takes the form of a JSON array of strings. YAML is also supported.
+Objects is a list of objects to collect metrics from. The value takes the form of a JSON array of strings.
+YAML is supported.
 
-The collector supports only english named counter. Localized counter-names are not supported.
+The collector supports only English-named counter. Localized counter-names aren’t supported.
+
+> [!CAUTION]
+> If you are using a configuration file, the value must be kept as a string.
+>
+> Use a `|-` to keep the value as a string.
+
+#### Example
+
+```yaml
+collector:
+  performancecounter:
+    objects: |-
+      - name: memory
+        object: "Memory"
+        counters:
+          - name: "Cache Faults/sec"
+            type: "counter" # optional
+```
 
 #### Schema
 
@@ -25,7 +44,8 @@ YAML:
 <summary>Click to expand YAML schema</summary>
 
 ```yaml
-- object: "Processor Information"
+- name: cpu # free text name
+  object: "Processor Information" # Performance counter object name
   instances: ["*"]
   instance_label: "core"
   counters:
@@ -37,7 +57,8 @@ YAML:
       metric: windows_performancecounter_processor_information_processor_time # optional
       labels:
         state: idle
-- object: "Memory"
+- name: memory
+  object: "Memory"
   counters:
     - name: "Cache Faults/sec"
       type: "counter" # optional
@@ -51,6 +72,7 @@ YAML:
 ```json
 [
   {
+    "name": "cpu",
     "object": "Processor Information",
     "instances": [
       "*"
@@ -74,6 +96,7 @@ YAML:
     ]
   },
   {
+    "name": "memory",
     "object": "Memory",
     "counters": [
       {
@@ -86,6 +109,11 @@ YAML:
 ```
 </details>
 
+#### name
+
+The name is used to identify the object in the logs and metrics.
+Must unique across all objects.
+
 #### object
 
 ObjectName is the Object to query for, like Processor, DirectoryServices, LogicalDisk or similar.
@@ -186,6 +214,17 @@ windows_performancecounter_processor_information_processor_time{core="0,8",state
 windows_performancecounter_processor_information_processor_time{core="0,9",state="active"} 1.0059484375e+11
 windows_performancecounter_processor_information_processor_time{core="0,9",state="idle"} 10059.484375
 ```
+> [!NOTE]
+> If you are using a configuration file, the value must be keep as string.
+
+Example:
+
+```yaml
+collector:
+  performancecounter:
+    objects: |
+```
+
 
 ## Metrics
 

internal/collector/mssql/mssql.go

@@ -387,7 +387,7 @@ func (c *Collector) collect(
 				slog.Any("err", err),
 			)
 		} else {
-			c.logger.Debug(fmt.Sprintf("mssql class collector %s for instance %s succeeded after %s.", collector, sqlInstance, duration))
+			c.logger.Debug(fmt.Sprintf("mssql class collector %s for instance %s succeeded after %s", collector, sqlInstance, duration))
 		}
 
 		ch <- prometheus.MustNewConstMetric(