Package org.apache.ignite.internal.processors.cache.persistence.pagemem

This package contains page memory implementation for case persitence is enabled.

See: Description

Interface Summary

Interface	Description
LoadedPagesMap	Interface for storing correspondence of page ID in a cache group to long value (address in offheap segment).
LoadedPagesMap.KeyPredicate	Interface describing a predicate for Key (cache group ID, page ID).
PageMemoryEx	Page memory with some persistence related additions.
PagesWriteThrottlePolicy	Throttling policy, encapsulates logic of delaying write operations.

Class Summary

Class	Description
CheckpointMetricsTracker	Tracks various checkpoint phases and stats.
DelayedDirtyPageStoreWrite	Not thread safe and stateful class for page replacement of one page with write() delay.
DelayedPageReplacementTracker	Delayed page writes tracker.
FullPageIdTable
PageMemoryImpl	Page header structure is described by the following diagram.
PagePool
PagesWriteSpeedBasedThrottle	Throttles threads that generate dirty pages during ongoing checkpoint.
PagesWriteThrottle	Throttles threads that generate dirty pages during ongoing checkpoint.
ReplaceCandidate	Replacement removal candidate.
RobinHoodBackwardShiftHashMap	Loaded pages mapping to relative pointer based on Robin Hood hashing: backward shift deletion algorithm.

Enum Summary

Enum	Description
PageMemoryImpl.ThrottlingPolicy	Throttling enabled and its type enum.

Package org.apache.ignite.internal.processors.cache.persistence.pagemem Description

This package contains page memory implementation for case persitence is enabled. Contained clasees with

• Page Memory implementation PageMemoryImpl.
• Page Write Throttling.
• Mapping of full Page IDs to place in memory segment.
• Pages replacement with disk.

See also Package description