[IGNITE-15012] Adapting historical rebalance to segment release

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.12
• Component/s: cache
• Release Note: Adaptation of the historical rebalance to the release of WAL segments.
• Ignite Flags: Release Notes Required
• Assignee: Kirill Tkalenko
• Reporter: Kirill Tkalenko
• Reviewer: Slava Koptilin
• Created: 28/Jun/21 07:12
• Updated: 09/Jul/21 11:46
• Resolved: 09/Jul/21 10:20

Description

It is necessary to adapt the historical rebalance to the release of WAL segments after their reservation. Since IGNITE-14952 will be automatically released when the maximum is reached.

This following proposal is part (in bold) of a discussion at dev list:

Main proposal:
When theDataStorageConfiguration#getMaxWalArchiveSize is reached, cancel and do not give the reservation of the WAL segments until we reach DataStorageConfiguration#getWalArchiveSize. In this case, if there is no segment for historical rebalance, we will automatically switch to full rebalance.

Issue Links

• is related to: IGNITE-14952 Releasing WAL segments when reaching DataStorageConfiguration#maxWalArchiveSize
• links to: GitHub Pull Request #9206