Matt Byrd created CASSANDRA-13570:
-------------------------------------
Summary: allow sub-range repairs (specifying -et -st) for a
preview of repaired data
Key: CASSANDRA-13570
URL: https://issues.apache.org/jira/browse/CASSANDRA-13570
Project: Cassandra
Issue Type: Improvement
Reporter: Matt Byrd
Assignee: Matt Byrd
Priority: Minor
Fix For: 4.x
I don't see any inherent reason for restricting preview repairs of repaired
data to not allow specifying start and end tokens.
The restriction seems to be coming from the fact that incremental=true in
RepairOption, which is the case but it's not truly an incremental repair since
we're only previewing.
{code:java}
if (option.isIncremental() && !option.isGlobal())
{
throw new IllegalArgumentException("Incremental repairs cannot be
run against a subset of tokens or ranges");
}
{code}
It would be helpful to allow this, so that operators could sequence a sweep
over the entirety of the token-space in a more gradual fashion.
Also it might help in examining which portions of the token-space differ.
Can anyone see any reasons for not allowing this?
I.e just changing the above to something like:
{code:java}
if (option.isIncremental() && !option.getPreviewKind().isPreview() &&
!option.isGlobal())
{
throw new IllegalArgumentException("Incremental repairs cannot be
run against a subset of tokens or ranges");
}
{code}
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