[jira] [Created] (CASSANDRA-16245) Implement repair quality test scenarios

["Alexander Dejanovski (Jira)" <ji...@apache.org>]

Alexander Dejanovski created CASSANDRA-16245:
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             Summary: Implement repair quality test scenarios
                 Key: CASSANDRA-16245
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16245
             Project: Cassandra
          Issue Type: Task
          Components: Test/dtest/java
            Reporter: Alexander Dejanovski


Implement the following test scenarios in a new test suite for repair integration testing with significant load:

Generate/restore a workload of ~100GB per node. Medusa should be considered to create the initial backup which could then be restored from an S3 bucket to speed up node population.
 Data should on purpose require repair and be generated accordingly.

Perform repairs for a 3 nodes cluster with 4 cores each and 16GB-32GB RAM (m5d.xlarge instances would be the most cost efficient type).
 Repaired keyspaces will use RF=3 or RF=2 in some cases (the latter is for subranges with different sets of replicas).
||Mode||Version||Settings||Checks||
|Full repair|trunk|Sequential + All token ranges|"No anticompaction (repairedAt==0)
 Out of sync ranges > 0
 Subsequent run must show no out of sync range"|
|Full repair|trunk|Parallel + Primary range|"No anticompaction (repairedAt==0)
 Out of sync ranges > 0
 Subsequent run must show no out of sync range"|
|Full repair|trunk|Force terminate repair shortly after it was triggered|Repair threads must be cleaned up|
|Subrange repair|trunk|Sequential + single token range|"No anticompaction (repairedAt==0)
 Out of sync ranges > 0
 Subsequent run must show no out of sync range"|
|Subrange repair|trunk|Parallel + 10 token ranges which have the same replicas|"No anticompaction (repairedAt == 0)
 Out of sync ranges > 0
 Subsequent run must show no out of sync range
A single repair session will handle all subranges at once"|
|Subrange repair|trunk|Parallel + 10 token ranges which have different replicas|"No anticompaction (repairedAt==0)
 Out of sync ranges > 0
 Subsequent run must show no out of sync range
More than one repair session is triggered to process all subranges"|
|Subrange repair|trunk|"Single token range.
 Force terminate repair shortly after it was triggered."|Repair threads must be cleaned up|
|Incremental repair|trunk|"Parallel (mandatory)
 No compaction during repair"|"Anticompaction status (repairedAt != 0) on all SSTables
 No pending repair on SSTables after completion (could require to wait a bit as this will happen asynchronously)
 Out of sync ranges > 0 + Subsequent run must show no out of sync range"|
|Incremental repair|trunk|"Parallel (mandatory)
 Major compaction triggered during repair"|"Anticompaction status (repairedAt != 0) on all SSTables
 No pending repair on SSTables after completion (could require to wait a bit as this will happen asynchronously)
 Out of sync ranges > 0 + Subsequent run must show no out of sync range"|
|Incremental repair|trunk|Force terminate repair shortly after it was triggered.|Repair threads must be cleaned up|



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