[IGNITE-7491] Documentation: add new data region metrics description

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.4
• Component/s: documentation
• Assignee: Denis A. Magda
• Reporter: Andrey Kuznetsov
• Created: 22/Jan/18 20:00
• Updated: 26/Jan/18 23:33
• Resolved: 26/Jan/18 23:32

Description

Newly created data region metrics should be documented.

• `getTotalAllocatedSize` – same as `getTotalAllocatedPages` but in bytes.
• `getPhysicalMemorySize` – same as `getPhysicalMemoryPages` but in bytes.
• `getCheckpointBufferPages` – gets checkpoint buffer size in pages.
• `getCheckpointBufferSize` – gets checkpoint buffer size in bytes.
• `getPageSize` – gets memory page size.

Issue Links

• is related to: IGNITE-6902 Implement new JMX metrics for Memory Regions
• links to: Memory metrics docs