Apache Solr™ MBeans
DataStax Enterprise (DSE) provides enhanced visibility into native memory allocation through the solr/NativeAllocatorStats MBean, exposing the following information:
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enabled: if native memory is enabled or not. -
debug: if debug mode is enabled or not. -
numAlloc: number of native objects allocations. -
numFree: number of freed native objects. -
activeAllocatedMemoryInBytes: allocated native memory currently in use. -
totalAllocatedMemoryInBytes: total allocated native memory over time. -
totalFreedMemoryInBytes: total freed native memory over time.
The solr/NativeTrackerStats MBean provides information about the tracked native objects and related threads that allocated them:
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registeredThreads: number of threads currently registered and actively tracking (allocating) native objects. -
trackedObjects: number of currently tracked (allocated and not freed) native objects. -
handedOffObjects: number of currently handed off (allocated and stored for later reuse) native objects.
