Abstract: In one aspect, a system for exposing application metrics on the fly is disclosed. The system includes a processor; a memory; and one or more modules stored in the memory and executable by a processor to perform various operations. The operations include initialize a Java managed object for Java Management Extension (JMX); attach the initialized Java managed object to a repository for Java managed objects accessible by applications; create a fixed reference to an attributes field in the attached Java managed object; provide the created fixed reference to the repository after initialization of the Java managed object; save the fixed reference; describe an attribute to be created; and create a new attribute in the Java managed object.

Abstract: In one aspect, a system for controlling domain name service (DNS) caching is disclosed, the system includes a processor; a memory; and one or more modules stored in the memory and executable by a processor to perform various operations. The various operations include maintain a hard cache on a local disk that includes a file of DNS entries that persists and available for access by an application after a reboot of a Java Virtual Machine (JVM) system running the application; populate a runtime positive soft cache with the entries from the hard cache, wherein the positive soft cache represents DNS entries assumed to be successful for resolving DNS client calls from the application that persists until the reboot of the JVM system running the application; and load entries into the runtime positive soft cache populated from the hard cache in response to an application making DNS client calls.

Abstract: In one aspect, a system for controlling domain name service (DNS) caching is disclosed, the system includes a processor; a memory; and one or more modules stored in the memory and executable by a processor to perform various operations. The various operations include maintain a hard cache on a local disk that includes a file of DNS entries that persists and available for access by an application after a reboot of a Java Virtual Machine (JVM) system running the application; populate a runtime positive soft cache with the entries from the hard cache, wherein the positive soft cache represents DNS entries assumed to be successful for resolving DNS client calls from the application that persists until the reboot of the JVM system running the application; and load entries into the runtime positive soft cache populated from the hard cache in response to an application making DNS client calls.

Abstract: In one aspect, a system for exposing application metrics on the fly is disclosed. The system includes a processor; a memory; and one or more modules stored in the memory and executable by a processor to perform various operations. The operations include initialize a Java managed object for Java Management Extension (JMX); attach the initialized Java managed object to a repository for Java managed objects accessible by applications; create a fixed reference to an attributes field in the attached Java managed object; provide the created fixed reference to the repository after initialization of the Java managed object; save the fixed reference; describe an attribute to be created; and create a new attribute in the Java managed object.