Support for configuring extensions.

build.gradle

@@ -19,6 +19,7 @@ subprojects {
 
         implementation "org.slf4j:slf4j-api:${slf4jVersion}"
         implementation "org.slf4j:slf4j-simple:${slf4jVersion}"
+        implementation 'org.tomlj:tomlj:1.0.0'
 
     }
 

client/build.gradle

@@ -37,11 +37,12 @@ def projectName = "sysmon-client"
 application {
     // Define the main class for the application.
     mainClass.set('sysmon.client.Application')
-    applicationDefaultJvmArgs = [ "-server", "-XX:+UseG1GC", "-Xmx32m" ]
+    applicationDefaultJvmArgs = [ "-server", "-Xms16m", "-Xmx32m", "-XX:+UseG1GC" ]
 }
 
 run {
     systemProperty 'pf4j.pluginsDir', '../plugins/output/'
+    systemProperty 'sysmon.cfgFile', 'doc/sysmon-client.toml'
 }
 
 tasks.named('test') {

client/doc/sysmon-client.toml

@@ -0,0 +1,10 @@
+# Configuration for sysmon-client
+
+[extension.base_disk]
+enabled = false
+
+[extension.base_process]
+enabled = true
+include = [ "java", "influxd", "grafana-server" ]
+
+

client/src/main/java/sysmon/client/Application.java

@@ -8,6 +8,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import picocli.CommandLine;
 
+import java.io.File;
 import java.io.IOException;
 import java.net.InetAddress;
 import java.net.URL;
@@ -28,6 +29,9 @@ public class Application implements Callable<Integer> {
     @CommandLine.Option(names = { "-p", "--plugin-dir" }, description = "Plugin jar path (default: ${DEFAULT-VALUE}).", paramLabel = "<path>", defaultValue = "/opt/sysmon/plugins")
     private String pluginPath;
 
+    @CommandLine.Option(names = { "-c", "--conf" }, description = "Configuration file [default: '/etc/sysmon-client.toml'].", paramLabel = "<file>", defaultValue = "/etc/sysmon-client.toml")
+    private File configurationFile;
+
     public static void main(String... args) {
         int exitCode = new CommandLine(new Application()).execute(args);
         System.exit(exitCode);
@@ -37,6 +41,8 @@ public class Application implements Callable<Integer> {
     @Override
     public Integer call() throws IOException {
 
+        Configuration configuration = new Configuration();
+
         if(hostname == null || hostname.isEmpty()) {
             try {
                 hostname = InetAddress.getLocalHost().getHostName();
@@ -51,10 +57,26 @@ public class Application implements Callable<Integer> {
             pluginPath = pf4jPluginsDir;
         }
 
+        String sysmonCfgFile = System.getProperty("sysmon.cfgFile");
+        if(sysmonCfgFile != null) {
+            configurationFile = new File(sysmonCfgFile);
+        }
+
+
+        if(configurationFile.exists()) {
+            try {
+                configuration.parse(configurationFile.toPath());
+            } catch (Exception e) {
+                System.err.println(e.getMessage());
+                return 1;
+            }
+        }
+
         Main main = new Main();
         main.bind("pluginPath", pluginPath);
         main.bind("myServerUrl", serverUrl.toString());
         main.bind("myHostname", hostname);
+        main.bind("configuration", configuration);
         main.configure().addRoutesBuilder(ClientRouteBuilder.class);
 
         // now keep the application running until the JVM is terminated (ctrl + c or sigterm)
@@ -62,6 +84,7 @@ public class Application implements Callable<Integer> {
             main.run();
         } catch (Exception e) {
             System.err.println(e.getMessage());
+            return 1;
         }
 
         return 0;

client/src/main/java/sysmon/client/ClientRouteBuilder.java

@@ -24,6 +24,7 @@ public class ClientRouteBuilder extends RouteBuilder {
     public void configure() {
 
         Registry registry = getContext().getRegistry();
+        Configuration configuration = (Configuration) registry.lookupByName("configuration");
 
         Path[] pluginpaths = { Paths.get(registry.lookupByNameAndType("pluginPath", String.class)) };
         PluginManager pluginManager = new JarPluginManager(pluginpaths);
@@ -34,9 +35,18 @@ public class ClientRouteBuilder extends RouteBuilder {
         List<MetricExtension> metricExtensions = pluginManager.getExtensions(MetricExtension.class);
         for (MetricExtension ext : metricExtensions) {
 
-            if(ext.isSupported()) {
+            final String name = ext.getName();
+            final String provides = ext.getProvides();
 
-                String provides = ext.getProvides();
+            // Load configuration if available
+            if(configuration.isForExtension(name)) {
+                log.info(">>> Loading configuring for extension: " + ext.getDescription());
+                ext.setConfiguration(configuration.getForExtension(name));
+            }
+
+            if(ext.isSupported() && ext.isEnabled()) {
+
+                // Check that another extension has not already been loaded - TODO: Is this required ?
                 if(providers.contains(provides)) {
                     log.warn("Skipping extension (already provided): " + ext.getName());
                     continue;
@@ -46,7 +56,7 @@ public class ClientRouteBuilder extends RouteBuilder {
                 providers.add(provides);
 
 
-                // TODO: Make timer thread configurable
+                // TODO: Make timer thread configurable ?
 
                 // Setup Camel route for this extension
                 // a unique timer name gives the timer it's own thread, otherwise it's a shared thread for other timers with same name.
@@ -62,7 +72,7 @@ public class ClientRouteBuilder extends RouteBuilder {
                         .otherwise()
                             .to("seda:metrics?discardWhenFull=true");
             } else {
-                log.info(">>> Skipping extension (not supported here): " + ext.getDescription());
+                log.info(">>> Skipping extension (not supported or disabled): " + ext.getDescription());
             }
 
         }

client/src/main/java/sysmon/client/Configuration.java

@@ -0,0 +1,64 @@
+package sysmon.client;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.tomlj.Toml;
+import org.tomlj.TomlParseResult;
+import org.tomlj.TomlTable;
+
+import java.io.IOException;
+import java.nio.file.Path;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+
+public final class Configuration {
+
+    private final static Logger log = LoggerFactory.getLogger(Configuration.class);
+
+    private TomlParseResult result;
+
+    void parse(Path configurationFile) throws IOException {
+        log.info("Parsing configuration file: " + configurationFile);
+        result = Toml.parse(configurationFile);
+        result.errors().forEach(error -> log.error(error.toString()));
+    }
+
+
+    boolean isForExtension(String extName) {
+        if(result == null) {
+            return false;
+        }
+        String key = String.format("extension.%s", extName);
+        return result.contains(key);
+    }
+
+
+    Map<String, Object> getForExtension(String extName) {
+
+        if(result == null) {
+            log.debug("No configuration file loaded ...");
+            return null;
+        }
+
+        Map<String, Object> map = new HashMap<>();
+
+        String key = String.format("extension.%s", extName);
+        TomlTable table = result.getTableOrEmpty(key);
+        table.keySet().forEach( k -> {
+            if(table.isString(k)) {
+                map.put(k, table.getString(k));
+            } else if(table.isBoolean(k)) {
+                map.put(k, table.getBoolean(k));
+            } else if(table.isDouble(k)) {
+                map.put(k, table.getDouble(k));
+            } else if(table.isArray(k)) {
+                map.put(k, Objects.requireNonNull(table.getArray(k)).toList());
+            }
+
+        });
+
+        return map;
+    }
+
+}

doc/Sysmon - Process Explorer-1631263229100.json

@@ -10,17 +10,11 @@
     }
   ],
   "__requires": [
-    {
-      "type": "panel",
-      "id": "gauge",
-      "name": "Gauge",
-      "version": ""
-    },
     {
       "type": "grafana",
       "id": "grafana",
       "name": "Grafana",
-      "version": "8.0.6"
+      "version": "8.1.2"
     },
     {
       "type": "datasource",
@@ -56,6 +50,12 @@
         "hide": true,
         "iconColor": "rgba(0, 211, 255, 1)",
         "name": "Annotations & Alerts",
+        "target": {
+          "limit": 100,
+          "matchAny": false,
+          "tags": [],
+          "type": "dashboard"
+        },
         "type": "dashboard"
       }
     ]
@@ -65,7 +65,7 @@
   "gnetId": null,
   "graphTooltip": 0,
   "id": null,
-  "iteration": 1631013505736,
+  "iteration": 1631256755587,
   "links": [],
   "panels": [
     {
@@ -120,7 +120,7 @@
         "showHeader": true,
         "sortBy": []
       },
-      "pluginVersion": "8.0.6",
+      "pluginVersion": "8.1.2",
       "targets": [
         {
           "groupBy": [
@@ -286,7 +286,7 @@
         "text": {},
         "textMode": "auto"
       },
-      "pluginVersion": "8.0.6",
+      "pluginVersion": "8.1.2",
       "targets": [
         {
           "groupBy": [
@@ -377,7 +377,7 @@
       "fieldConfig": {
         "defaults": {
           "color": {
-            "mode": "continuous-GrYlRd"
+            "mode": "thresholds"
           },
           "mappings": [],
           "thresholds": {
@@ -426,6 +426,10 @@
       },
       "id": 26,
       "options": {
+        "colorMode": "value",
+        "graphMode": "area",
+        "justifyMode": "auto",
+        "orientation": "auto",
         "reduceOptions": {
           "calcs": [
             "lastNotNull"
@@ -433,11 +437,10 @@
           "fields": "",
           "values": false
         },
-        "showThresholdLabels": false,
+        "text": {},
-        "showThresholdMarkers": true,
+        "textMode": "auto"
-        "text": {}
       },
-      "pluginVersion": "8.0.6",
+      "pluginVersion": "8.1.2",
       "targets": [
         {
           "groupBy": [
@@ -471,10 +474,6 @@
                 "params": [],
                 "type": "sum"
               },
-              {
-                "params": [],
-                "type": "non_negative_difference"
-              },
               {
                 "params": [
                   "read"
@@ -493,10 +492,6 @@
                 "params": [],
                 "type": "sum"
               },
-              {
-                "params": [],
-                "type": "non_negative_difference"
-              },
               {
                 "params": [
                   "write"
@@ -529,7 +524,7 @@
       "timeFrom": null,
       "timeShift": null,
       "title": "Disk Metrics",
-      "type": "gauge"
+      "type": "stat"
     },
     {
       "datasource": "${DS_INFLUXDB-SYSMON}",
@@ -890,7 +885,7 @@
         "refresh": 2,
         "regex": "",
         "skipUrlSync": false,
-        "sort": 0,
+        "sort": 5,
         "tagValuesQuery": "",
         "tagsQuery": "",
         "type": "query",
@@ -913,14 +908,14 @@
         "refresh": 1,
         "regex": "",
         "skipUrlSync": false,
-        "sort": 0,
+        "sort": 5,
         "type": "query"
       },
       {
-        "allValue": "",
+        "allValue": null,
         "current": {},
         "datasource": "${DS_INFLUXDB-SYSMON}",
-        "definition": "SHOW TAG VALUES FROM \"base_process\" WITH KEY = \"pid\" WHERE hostname =~ /$hostname/AND \"name\" =~ /$process/ AND time > now() - 60m",
+        "definition": "SELECT DISTINCT(\"pid\") FROM (SELECT * FROM \"base_process\" WHERE time > now() - 60m AND \"hostname\" =~ /$hostname/ AND \"name\" =~ /$process/)",
         "description": null,
         "error": null,
         "hide": 0,
@@ -929,17 +924,17 @@
         "multi": false,
         "name": "pid",
         "options": [],
-        "query": "SHOW TAG VALUES FROM \"base_process\" WITH KEY = \"pid\" WHERE hostname =~ /$hostname/AND \"name\" =~ /$process/ AND time > now() - 60m",
+        "query": "SELECT DISTINCT(\"pid\") FROM (SELECT * FROM \"base_process\" WHERE time > now() - 60m AND \"hostname\" =~ /$hostname/ AND \"name\" =~ /$process/)",
-        "refresh": 1,
+        "refresh": 2,
         "regex": "",
         "skipUrlSync": false,
-        "sort": 0,
+        "sort": 3,
         "type": "query"
       }
     ]
   },
   "time": {
-    "from": "now-3h",
+    "from": "now-6h",
     "to": "now-30s"
   },
   "timepicker": {
@@ -958,5 +953,5 @@
   "timezone": "",
   "title": "Sysmon - Process Explorer",
   "uid": "Vjut5mS7k",
-  "version": 11
+  "version": 15
 }

plugins/os-aix/src/main/java/sysmon/plugins/os_aix/AixNetstatExtension.java

@@ -19,6 +19,20 @@ public class AixNetstatExtension implements MetricExtension  {
 
     private static final Logger log = LoggerFactory.getLogger(AixNetstatExtension.class);
 
+    // Extension details
+    private final String name = "aix_network_netstat";
+    private final String provides = "network_netstat";
+    private final String description = "AIX Netstat Metrics";
+
+    // Configuration / Options
+    private boolean enabled = true;
+
+
+    @Override
+    public boolean isEnabled() {
+        return enabled;
+    }
+
     @Override
     public boolean isSupported() {
 
@@ -37,17 +51,24 @@ public class AixNetstatExtension implements MetricExtension  {
 
     @Override
     public String getName() {
-        return "aix_network_netstat";
+        return name;
     }
 
     @Override
     public String getProvides() {
-        return "network_netstat";
+        return provides;
     }
 
     @Override
     public String getDescription() {
-        return "AIX Netstat Metrics";
+        return description;
+    }
+
+    @Override
+    public void setConfiguration(Map<String, Object> map) {
+        if (map.containsKey("enabled")) {
+            enabled = (boolean) map.get("enabled");
+        }
     }
 
     @Override
@@ -63,7 +84,7 @@ public class AixNetstatExtension implements MetricExtension  {
         }
 
         log.debug(fieldsMap.toString());
-        return new MetricResult(getName(), new Measurement(tagsMap, fieldsMap));
+        return new MetricResult(name, new Measurement(tagsMap, fieldsMap));
     }
 
 

plugins/os-aix/src/main/java/sysmon/plugins/os_aix/AixProcessorExtension.java

@@ -11,7 +11,6 @@ import sysmon.shared.PluginHelper;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 
 @Extension
@@ -19,6 +18,20 @@ public class AixProcessorExtension implements MetricExtension {
 
     private static final Logger log = LoggerFactory.getLogger(AixProcessorExtension.class);
 
+    // Extension details
+    private final String name = "aix_processor";
+    private final String provides = "lpar_processor";
+    private final String description = "AIX Processor Metrics";
+
+    // Configuration / Options
+    private boolean enabled = true;
+
+
+    @Override
+    public boolean isEnabled() {
+        return enabled;
+    }
+
     @Override
     public boolean isSupported() {
 
@@ -38,17 +51,24 @@ public class AixProcessorExtension implements MetricExtension {
 
     @Override
     public String getName() {
-        return "aix_processor";
+        return name;
     }
 
     @Override
     public String getProvides() {
-        return "processor_lpar";
+        return provides;
     }
 
     @Override
     public String getDescription() {
-        return "AIX Processor Metrics";
+        return description;
+    }
+
+    @Override
+    public void setConfiguration(Map<String, Object> map) {
+        if (map.containsKey("enabled")) {
+            enabled = (boolean) map.get("enabled");
+        }
     }
 
     @Override
@@ -63,7 +83,7 @@ public class AixProcessorExtension implements MetricExtension {
             fieldsMap = processorStat.getFields();
         }
 
-        return new MetricResult(getName(), new Measurement(tagsMap, fieldsMap));
+        return new MetricResult(name, new Measurement(tagsMap, fieldsMap));
     }
 
 

plugins/os-base/README.md

@@ -36,3 +36,30 @@ Metrics reported are:
 - **writes** - The total number of bytes written.
 - **iotime** - Time spent on IO in milliseconds.
 - **queue** - Lenght of IO queue.
+
+## Process Extension
+
+Reports metrics on one or more running processes.
+
+- **mem_rss** - Resident set memory in bytes.
+- **mem_vsz** - Virtual memory in bytes.
+- **kernel_time** - Time spent (in milliseconds) in kernel space.
+- **user_time** - Time used (in milliseconds) in user space.
+- **read_bytes** - Bytes read by process.
+- **write_bytes** - Bytes written by process.
+- **files** - Files currently open by process.
+- **threads** - Running threads.
+- **user** - User running the process.
+- **group** - Group running the process
+- **prio** - Process priority.
+
+
+### Configuration
+
+The **include** option let's you specify what processes to report for.
+
+```toml
+[extension.base_process]
+enabled = true # true or false
+include = [ "java", "influxd", "grafana-server" ]
+```

plugins/os-base/src/main/java/sysmon/plugins/os_base/BaseDiskExtension.java

@@ -3,7 +3,6 @@ package sysmon.plugins.os_base;
 import org.pf4j.Extension;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import oshi.SystemInfo;
 import oshi.hardware.HWDiskStore;
 import oshi.hardware.HardwareAbstractionLayer;
 import sysmon.shared.Measurement;
@@ -19,9 +18,22 @@ public class BaseDiskExtension implements MetricExtension {
 
     private static final Logger log = LoggerFactory.getLogger(BaseDiskExtension.class);
 
+    // Extension details
+    private final String name = "base_disk";
+    private final String provides = "disk";
+    private final String description = "Base Disk Metrics";
+
+    // Configuration / Options
+    private boolean enabled = true;
+
     private HardwareAbstractionLayer hardwareAbstractionLayer;
 
 
+    @Override
+    public boolean isEnabled() {
+        return enabled;
+    }
+
     @Override
     public boolean isSupported() {
         hardwareAbstractionLayer = BasePlugin.getHardwareAbstractionLayer();
@@ -30,19 +42,25 @@ public class BaseDiskExtension implements MetricExtension {
 
     @Override
     public String getName() {
-        return "base_disk";
+        return name;
     }
 
     @Override
     public String getProvides() {
-        return "disk";
+        return provides;
     }
 
     @Override
     public String getDescription() {
-        return "Base Disk Metrics";
+        return description;
     }
 
+    @Override
+    public void setConfiguration(Map<String, Object> map) {
+        if (map.containsKey("enabled")) {
+            enabled = (boolean) map.get("enabled");
+        }
+    }
 
     @Override
     public MetricResult getMetrics() {
@@ -73,7 +91,7 @@ public class BaseDiskExtension implements MetricExtension {
         fieldsMap.put("queue", queueLength);
 
         log.debug(fieldsMap.toString());
-        return new MetricResult(getName(), new Measurement(tagsMap, fieldsMap));
+        return new MetricResult(name, new Measurement(tagsMap, fieldsMap));
     }
 
 }

plugins/os-base/src/main/java/sysmon/plugins/os_base/BaseMemoryExtension.java

@@ -3,7 +3,6 @@ package sysmon.plugins.os_base;
 import org.pf4j.Extension;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import oshi.SystemInfo;
 import oshi.hardware.HardwareAbstractionLayer;
 import sysmon.shared.Measurement;
 import sysmon.shared.MetricExtension;
@@ -17,8 +16,22 @@ public class BaseMemoryExtension implements MetricExtension {
 
     private static final Logger log = LoggerFactory.getLogger(BaseMemoryExtension.class);
 
+    // Extension details
+    private final String name = "base_memory";
+    private final String provides = "memory";
+    private final String description = "Base Memory Metrics";
+
+    // Configuration / Options
+    private boolean enabled = true;
+
     private HardwareAbstractionLayer hardwareAbstractionLayer;
 
+
+    @Override
+    public boolean isEnabled() {
+        return enabled;
+    }
+
     @Override
     public boolean isSupported() {
         hardwareAbstractionLayer = BasePlugin.getHardwareAbstractionLayer();
@@ -27,17 +40,24 @@ public class BaseMemoryExtension implements MetricExtension {
 
     @Override
     public String getName() {
-        return "base_memory";
+        return name;
     }
 
     @Override
     public String getProvides() {
-        return "memory";
+        return provides;
     }
 
     @Override
     public String getDescription() {
-        return "Base Memory Metrics";
+        return description;
+    }
+
+    @Override
+    public void setConfiguration(Map<String, Object> map) {
+        if (map.containsKey("enabled")) {
+            enabled = (boolean) map.get("enabled");
+        }
     }
 
     @Override
@@ -57,7 +77,7 @@ public class BaseMemoryExtension implements MetricExtension {
         fieldsMap.put("virtual", hardwareAbstractionLayer.getMemory().getVirtualMemory().getVirtualInUse());
 
         log.debug(fieldsMap.toString());
-        return new MetricResult(getName(), new Measurement(tagsMap, fieldsMap));
+        return new MetricResult(name, new Measurement(tagsMap, fieldsMap));
     }
 
 

plugins/os-base/src/main/java/sysmon/plugins/os_base/BaseNetworkExtension.java

@@ -19,8 +19,22 @@ public class BaseNetworkExtension implements MetricExtension {
 
     private static final Logger log = LoggerFactory.getLogger(BaseNetworkExtension.class);
 
+    // Extension details
+    private final String name = "base_network";
+    private final String provides = "network";
+    private final String description = "Base Network Metrics";
+
+    // Configuration / Options
+    private boolean enabled = true;
+
+
     private HardwareAbstractionLayer hardwareAbstractionLayer;
 
+    @Override
+    public boolean isEnabled() {
+        return enabled;
+    }
+
     @Override
     public boolean isSupported() {
         hardwareAbstractionLayer = BasePlugin.getHardwareAbstractionLayer();
@@ -29,17 +43,24 @@ public class BaseNetworkExtension implements MetricExtension {
 
     @Override
     public String getName() {
-        return "base_network";
+        return name;
     }
 
     @Override
     public String getProvides() {
-        return "network";
+        return provides;
     }
 
     @Override
     public String getDescription() {
-        return "Base Network Metrics";
+        return description;
+    }
+
+    @Override
+    public void setConfiguration(Map<String, Object> map) {
+        if (map.containsKey("enabled")) {
+            enabled = (boolean) map.get("enabled");
+        }
     }
 
     @Override
@@ -75,7 +96,7 @@ public class BaseNetworkExtension implements MetricExtension {
         fieldsMap.put("txErrors", txErrs);
 
         log.debug(fieldsMap.toString());
-        return new MetricResult(getName(), new Measurement(tagsMap, fieldsMap));
+        return new MetricResult(name, new Measurement(tagsMap, fieldsMap));
     }
 
 }

plugins/os-base/src/main/java/sysmon/plugins/os_base/BaseProcessExtension.java

@@ -9,29 +9,31 @@ import sysmon.shared.Measurement;
 import sysmon.shared.MetricExtension;
 import sysmon.shared.MetricResult;
 
-import java.util.ArrayList;
+import java.util.*;
-import java.util.HashMap;
-import java.util.List;
 
 @Extension
 public class BaseProcessExtension implements MetricExtension {
 
     private static final Logger log = LoggerFactory.getLogger(BaseProcessorExtension.class);
 
-    // TODO: configurable include-list and/or exclude-list of process names
+    // Extension details
-    private final List<String> includeList = new ArrayList<String>() {{
+    private final String name = "base_process";
+    private final String provides = "process";
+    private final String description = "Base Process Metrics";
+
+    // Configuration / Options
+    private boolean enabled = true;
+    private List<?> includeList = new ArrayList<Object>() {{
         add("java");
-        add("nginx");
-        add("influxd");
-        add("dockerd");
-        add("containerd");
-        add("mysqld");
-        add("postgres");
-        add("grafana-server");
     }};
 
     private SystemInfo systemInfo;
 
+    @Override
+    public boolean isEnabled() {
+        return enabled;
+    }
+
     @Override
     public boolean isSupported() {
         systemInfo = BasePlugin.getSystemInfo();
@@ -40,19 +42,29 @@ public class BaseProcessExtension implements MetricExtension {
 
     @Override
     public String getName() {
-        return "base_process";
+        return name;
     }
 
     @Override
     public String getProvides() {
-        return "process";
+        return provides;
     }
 
     @Override
     public String getDescription() {
-        return "Base Process Metrics";
+        return description;
     }
 
+    @Override
+    public void setConfiguration(Map<String, Object> map) {
+        if(map.containsKey("enabled")) {
+            enabled = (boolean) map.get("enabled");
+        }
+        if(map.containsKey("include")) {
+            includeList = (List<?>) map.get("include");
+        }
+        log.info(includeList.toString());
+    }
 
     @Override
     public MetricResult getMetrics() {
@@ -71,7 +83,7 @@ public class BaseProcessExtension implements MetricExtension {
             if(!includeList.contains(name)) {
                 continue;
             }
-            log.debug("pid: " + p.getProcessID() + ", name: " + name + ", virt: " + p.getVirtualSize() + " rss: " + p.getResidentSetSize() + " cmd: " + p.getCommandLine());
+            log.debug("pid: " + p.getProcessID() + ", name: " + name + ", virt: " + p.getVirtualSize() + " rss: " + p.getResidentSetSize());
 
             HashMap<String, String> tagsMap = new HashMap<>();
             HashMap<String, Object> fieldsMap = new HashMap<>();
@@ -95,7 +107,7 @@ public class BaseProcessExtension implements MetricExtension {
         }
 
         //log.info("Size of measurements: " + measurementList.size());
-        return new MetricResult(getName(), measurementList);
+        return new MetricResult(name, measurementList);
     }
 
 }

plugins/os-base/src/main/java/sysmon/plugins/os_base/BaseProcessorExtension.java

@@ -3,20 +3,13 @@ package sysmon.plugins.os_base;
 import org.pf4j.Extension;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import oshi.SystemInfo;
 import oshi.hardware.CentralProcessor;
 import oshi.hardware.HardwareAbstractionLayer;
 import sysmon.shared.Measurement;
 import sysmon.shared.MetricExtension;
 import sysmon.shared.MetricResult;
 
-import java.io.IOException;
-import java.nio.charset.StandardCharsets;
-import java.nio.file.Files;
-import java.nio.file.Paths;
-import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 
 @Extension
@@ -24,9 +17,22 @@ public class BaseProcessorExtension implements MetricExtension {
 
     private static final Logger log = LoggerFactory.getLogger(BaseProcessorExtension.class);
 
+    // Extension details
+    private final String name = "base_processor";
+    private final String provides = "processor";
+    private final String description = "Base Processor Metrics";
+
+    // Configuration / Options
+    private boolean enabled = true;
+
     private HardwareAbstractionLayer hardwareAbstractionLayer;
     private long[] oldTicks;
 
+    @Override
+    public boolean isEnabled() {
+        return enabled;
+    }
+
     @Override
     public boolean isSupported() {
         hardwareAbstractionLayer = BasePlugin.getHardwareAbstractionLayer();
@@ -35,19 +41,25 @@ public class BaseProcessorExtension implements MetricExtension {
 
     @Override
     public String getName() {
-        return "base_processor";
+        return name;
     }
 
     @Override
     public String getProvides() {
-        return "processor";
+        return provides;
     }
 
     @Override
     public String getDescription() {
-        return "Base Processor Metrics";
+        return description;
     }
 
+    @Override
+    public void setConfiguration(Map<String, Object> map) {
+        if (map.containsKey("enabled")) {
+            enabled = (boolean) map.get("enabled");
+        }
+    }
 
     @Override
     public MetricResult getMetrics() {
@@ -86,7 +98,7 @@ public class BaseProcessorExtension implements MetricExtension {
 
         oldTicks = ticks;
         log.debug(fieldsMap.toString());
-        return new MetricResult(getName(), new Measurement(tagsMap, fieldsMap));
+        return new MetricResult(name, new Measurement(tagsMap, fieldsMap));
     }
 
 }

plugins/os-ibmi/src/main/java/sysmon/plugins/os_ibmi/TestExtension.java

@@ -8,6 +8,7 @@ import sysmon.shared.MetricExtension;
 import sysmon.shared.MetricResult;
 
 import java.io.IOException;
+import java.util.Map;
 
 // Disable for now...
 //@Extension
@@ -15,9 +16,23 @@ public class TestExtension implements MetricExtension {
 
     private static final Logger log = LoggerFactory.getLogger(TestExtension.class);
 
+    // Extension details
+    private final String name = "ibmi_test";
+    private final String provides = "ibmi_test";
+    private final String description = "IBM i Test Metrics";
+
+    // Configuration / Options
+    private boolean enabled = true;
+
     private AS400 as400;
     private SystemStatus systemStatus;
 
+
+    @Override
+    public boolean isEnabled() {
+        return enabled;
+    }
+
     @Override
     public boolean isSupported() {
 
@@ -47,17 +62,24 @@ public class TestExtension implements MetricExtension {
 
     @Override
     public String getName() {
-        return "ibmi-test";
+        return name;
     }
 
     @Override
     public String getProvides() {
-        return "test";
+        return provides;
     }
 
     @Override
     public String getDescription() {
-        return "IBM i Test Extension";
+        return description;
+    }
+
+    @Override
+    public void setConfiguration(Map<String, Object> map) {
+        if (map.containsKey("enabled")) {
+            enabled = (boolean) map.get("enabled");
+        }
     }
 
     @Override

plugins/os-linux/src/main/java/sysmon/plugins/os_linux/LinuxNetstatExtension.java

@@ -19,6 +19,20 @@ public class LinuxNetstatExtension implements MetricExtension  {
 
     private static final Logger log = LoggerFactory.getLogger(LinuxNetstatExtension.class);
 
+    // Extension details
+    private final String name = "linux_network_netstat";
+    private final String provides = "network_netstat";
+    private final String description = "Linux Netstat Metrics";
+
+    // Configuration / Options
+    private boolean enabled = true;
+
+
+    @Override
+    public boolean isEnabled() {
+        return enabled;
+    }
+
     @Override
     public boolean isSupported() {
 
@@ -37,17 +51,24 @@ public class LinuxNetstatExtension implements MetricExtension  {
 
     @Override
     public String getName() {
-        return "linux_network_netstat";
+        return name;
     }
 
     @Override
     public String getProvides() {
-        return "network_netstat";
+        return provides;
     }
 
     @Override
     public String getDescription() {
-        return "Linux Netstat Metrics";
+        return description;
+    }
+
+    @Override
+    public void setConfiguration(Map<String, Object> map) {
+        if (map.containsKey("enabled")) {
+            enabled = (boolean) map.get("enabled");
+        }
     }
 
     @Override
@@ -63,7 +84,7 @@ public class LinuxNetstatExtension implements MetricExtension  {
         }
 
         log.debug(fieldsMap.toString());
-        return new MetricResult(getName(), new Measurement(tagsMap, fieldsMap));
+        return new MetricResult(name, new Measurement(tagsMap, fieldsMap));
     }
 
 

plugins/os-linux/src/main/java/sysmon/plugins/os_linux/LinuxSockstatExtension.java

@@ -17,6 +17,20 @@ public class LinuxSockstatExtension implements MetricExtension {
 
     private static final Logger log = LoggerFactory.getLogger(LinuxSockstatExtension.class);
 
+    // Extension details
+    private final String name = "linux_network_sockets";
+    private final String provides = "network_sockets";
+    private final String description = "Linux Network Socket Metrics";
+
+    // Configuration / Options
+    private boolean enabled = true;
+
+
+    @Override
+    public boolean isEnabled() {
+        return enabled;
+    }
+
     @Override
     public boolean isSupported() {
 
@@ -30,17 +44,24 @@ public class LinuxSockstatExtension implements MetricExtension {
 
     @Override
     public String getName() {
-        return "linux_network_sockets";
+        return name;
     }
 
     @Override
     public String getProvides() {
-        return "network_sockets";
+        return provides;
     }
 
     @Override
     public String getDescription() {
-        return "Linux Network Socket Metrics";
+        return description;
+    }
+
+    @Override
+    public void setConfiguration(Map<String, Object> map) {
+        if (map.containsKey("enabled")) {
+            enabled = (boolean) map.get("enabled");
+        }
     }
 
     @Override
@@ -52,7 +73,7 @@ public class LinuxSockstatExtension implements MetricExtension {
         HashMap<String, Object> fieldsMap = sockStat.getFields();
 
         log.debug(fieldsMap.toString());
-        return new MetricResult(getName(), new Measurement(tagsMap, fieldsMap));
+        return new MetricResult(name, new Measurement(tagsMap, fieldsMap));
 
     }
 

server/build.gradle

@@ -28,7 +28,7 @@ def projectName = "sysmon-server"
 application {
     // Define the main class for the application.
     mainClass.set('sysmon.server.Application')
-    applicationDefaultJvmArgs = [ "-server", "-XX:+UseG1GC", "-Xmx128m" ]
+    applicationDefaultJvmArgs = [ "-server", "-Xms64m", "-Xmx128m", "-XX:+UseG1GC" ]
 }
 
 tasks.named('test') {

server/src/main/java/sysmon/server/ServerRouteBuilder.java

@@ -39,7 +39,7 @@ public class ServerRouteBuilder extends RouteBuilder {
                 .route()
                 .setHeader(Exchange.HTTP_RESPONSE_CODE, constant(202))
                 .setHeader("Content-Type", constant("application/x-www-form-urlencoded"))
-                .to("seda:inbound")
+                .to("seda:inbound?discardWhenFull=true")
                 .endRest();
 
         fromF("seda:inbound?concurrentConsumers=%s", threads)

shared/src/main/java/sysmon/shared/MetricExtension.java

@@ -2,14 +2,18 @@ package sysmon.shared;
 
 import org.pf4j.ExtensionPoint;
 
+import java.util.Map;
 
 public interface MetricExtension extends ExtensionPoint {
 
+    boolean isEnabled();
     boolean isSupported();
 
     String getName();
     String getProvides();
     String getDescription();
 
+    void setConfiguration(Map<String, Object> map);
+
     MetricResult getMetrics() throws Exception;
 }