[IGNITE-2378] Data loss Part 2. Add flexible DataLoss Policy. Improve dataLoss event with batch.

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.6
• Component/s: general
• Labels: important
• Assignee: Unassigned
• Reporter: Vladimir Ershov
• Created: 14/Jan/16 12:37
• Updated: 25/Sep/17 13:01

Description

Next steps for the data loss check functionality development:

1. Introduce new DataLossPolicy, like read-only and others.
2. Think of data restoration and implement if needed.
3. Design solution for the reduce of the amount of EVT_CACHE_REBALANCE_PART_DATA_LOST. (Now it is possible to implement batching for those events). One has to be careful with backward compatibility here.
4. ResetLostPartsMsg should affect only topology with specified version.

Issue Links

• relates to: IGNITE-1605 Provide stronger data loss check