Solr MBeans
DataStax Enterprise 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.
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debug: if debug mode is enabled or not.
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numAlloc: number of native objects allocations.
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numFree: number of freed native objects.
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activeAllocatedMemoryInBytes: allocated native memory currently in use.
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totalAllocatedMemoryInBytes: total allocated native memory over time.
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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.
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trackedObjects: number of currently tracked (allocated and not freed) native objects.
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handedOffObjects: number of currently handed off (allocated and stored for later reuse) native objects.
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