Splunk for JMX
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Splunk for JMX
- 1. Splunk for JMX Damien Dallimore Developer Evangelist
- 2. Copyright©2013,SplunkInc. Splunk for JMX 2 • ConnecttoanylocalorremoteJVM'sJMXserver,Hotspot/JRockit/IBMJ9/OpenJDK/AzulZing • QueryanyMBeanrunningonthatserver • ExtractanyMBeanattributes(simple,compositeortabular) • InvokeMBeanoperations • Writeattributesandoperationresultsoutinadefaultkey/valueformat,orpluginyourowncustomformat,forSPLUNK indexingandsearching • TransporteventsoverSTDOUT(default),TCP,Syslog,SplunkRESTendpointordirecttofile. • DeclareclustersofJVM'sforlargerscaleJVMdeployments • Runson*NixandWindows • OutoftheboxdashboardsforcommonJVMMBeans • FreelyavailablefromSplunkBase,allsourcecodeisonGitHub
- 3. Copyright©2013,SplunkInc. Connectivity Options 3 • Remote JMX interface – rmi (JSR160StandardImplementationandMX4J'sJSR160Implementation) – iiop(JSR160StandardImplementationandMX4J'sJSR160Implementation) • Direct Process attachment – ConnectdirectlytoalocallyrunningJVMprocess • MX4J HTTP connectors (requires MX4J in the target JVM also) – soap,soap+sssl – hessian,hessian+ssl – burlap,burlap+ssl
- 4. Copyright©2013,SplunkInc. Setup and Configuration 4 • The main goalof the app was to make it as simple and intuitive as possible to connect to your JVMs and start Splunking JMX data • Enableyour targetJVM’s remoteJMX interface, test connectivitywith JConsole • InstallSplunk for JMX • ExtractSplunkforJMXtarballtoSPLUNK_HOME/etc/apps • RestartSplunk • Atthesetupscreen,choosea scriptedinputforyourplatform(Nix/Windows) • Setup your JMX configurationfile • Thedefaultconfig.xmlfileispreconfiguredforcommonJVMMBeans • BrowseyourJVM(usingJConsole)forotherMBeansthatyouwishtopollandconfigurethese • Youcanhaveasmanyconfigfilesasyourequire,andyoumightsettheseuptofireoffatdifferent scheduledfrequencies
- 6. Copyright©2013,SplunkInc. Configuration Examples - Wildcards 6 MBean Object name format “domain:key=value,key2=value2” Around 25KBytes per dump on Hotspot JVMs Don’t know the domain or properties name or have many Mbeans with the same attributes ? * and ? wildcards are supported in the Mbean name
- 7. Copyright©2013,SplunkInc. Configuration Examples - Clusters 7 • Define clusters of JVM’s that share the same MBean definitions • Note , in these examples, for brevity I am using “dumpAllAttributes” , but in production you’d want to pick and choose specific MBean attributes you are interested in, and perhaps split definitions over multiple files run at varying frequencies
- 8. Copyright©2013,SplunkInc. Configuration Examples - Operations 8 • Invoke JMX operations that return a value or simply perform some action on the target JVM • Operation definitions can take parameters Use Case 1 : your developers might code a JMX operation that returns a CSV or JSON formatted snapshot of some metrics for Splunking Use Case 2 : dynamically trigger HPROF dumps. The “com.sun.management:type=HotSpotDiagnostic” Mbean exposes a “dumpHeap” operation
- 9. Copyright©2013,SplunkInc. Configuration Examples - Connecting 9 • IP Address with credentials • Hostname • Static Process ID • Process ID lookup from file • Process ID lookup from command output • Raw JMX Service URL • MX4J HTTP Connector
- 10. Copyright©2013,SplunkInc. Custom Formatters/Transports 10 • The Splunk for JMX configuration is user extensible • You can code and configure your own Formatters and Transports Formatters • Takes the raw MBean polled output and formats it for Splunking • A Java implementation of the "com.dtdsoftware.splunk.formatter.Formatter" interface • If the optional formatter declaration is omitted, then the default formatter will be used Transports • Takes the formatted output and transports it to a destination • A Java implementation of the "com.dtdsoftware.splunk.transport.Transport" interface • If the optional transport declaration is omitted, then the default transport(STD out) will be used
- 13. Copyright©2013,SplunkInc. Deployment Architectures 1 13 • Simplest scenario • Monolithic Splunk installation • Splunk for JMX polling 1 or more remote/local JVMs via the remote JMX interface • There is support for many target JVM’s in the configuration schema but to really scale out, you need a more advanced Splunk architecture
- 14. Copyright©2013,SplunkInc. Deployment Architectures 2 14 Splunk UF running locally with target JVM Splunk Indexer Cluster Splunk Search Head Pool Load Balancer • Run Splunk UF locally with target JVM.Can connect use remote JMX interface or direct process attachment. • Each tier scales out horizontally. • Can overcome firewall issues that are sometimes inherent with Java RMI • Deploy Splunk for JMX components and configurations with Splunk Deployment Server, Puppet or Chef.
- 15. Demo
- 16. Copyright©2013,SplunkInc. Contact me 16 Email : ddallimore@splunk.com Twitter : @damiendallimore Skype : damien.dallimore Github : damiendallimore Splunkbase : damiend Slideshare : http://www.slideshare.net/damiendallimore Blogs : http://blogs.splunk.com/dev Web : http://dev.splunk.com