[HBASE-23266] Test case for MOB compaction in a region's batch mode.

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Feedback Received
• Assignee: Vladimir Rodionov
• Reporter: Vladimir Rodionov
• Created: 06/Nov/19 16:20
• Updated: 19/Feb/20 21:30
• Resolved: 19/Feb/20 21:30

Description

Major MOB compaction in a general (non-generational) mode can be run in a batched mode (disabled by default). In this mode, only subset of regions at a time are compacted to mitigate possible compaction storms. We need test case for this mode.

Test case description:

/**
  * Mob file compaction chore in batch mode test.
  * 1. Enables batch mode for regular MOB compaction, 
  *    Sets batch size to 7 regions.
  * 2. Disables periodic MOB compactions, sets minimum age to archive to 10 sec   
  * 3. Creates MOB table with 20 regions
  * 4. Loads MOB data (randomized keys, 1000 rows), flushes data.
  * 5. Repeats 4. two more times
  * 6. Verifies that we have 20 *3 = 60 mob files (equals to number of regions x 3)
  * 7. Runs major MOB compaction.
  * 8. Verifies that number of MOB files in a mob directory is 20 x4 = 80
  * 9. Waits for a period of time larger than minimum age to archive 
  * 10. Runs Mob cleaner chore
  * 11 Verifies that number of MOB files in a mob directory is 20.
  * 12 Runs scanner and checks all 3 * 1000 rows.
*/