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https://issues.apache.org/jira/browse/CASSANDRA-5608?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis updated CASSANDRA-5608:
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Description:
Consider the case of a four node cluster, with nodes A and C in DC1, and nodes
B and D in DC2. TokenMetadata will break this into ranges of (A-B], (B-C],
(C-D], (D-A].
If we have a single copy of a keyspace stored in DC1 only (none in DC2), then
the current code correctly calculates that node A is responsible for ranges
(C-D], (D-A].
But, if we add a copy in DC2, then we only calculate (D-A] as primary range.
This is a bug; we should not care what copies are in other datacenters, when
computing what to repair in the local one.
was:
Consider the case of a four node cluster, with nodes A and C in DC1, and nodes
B and D in DC2. TokenMetadata will break this into ranges of (A-B], (B-C],
(C-D], (D-A].
If we have a single copy of a keyspace stored in DC1 only (none in DC2), then
the current code correctly calculates that node A is responsible for ranges
(C-D], (D-A].
But, if we add a copy in DC1, then we only calculate (D-A] as primary range.
This is a bug; we should not care what copies are in other datacenters, when
computing what to repair in the local one.
> "Primary range" repair still isn't quite NTS-aware
> --------------------------------------------------
>
> Key: CASSANDRA-5608
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5608
> Project: Cassandra
> Issue Type: Bug
> Components: Tools
> Affects Versions: 1.2.5
> Reporter: Jonathan Ellis
> Assignee: Jonathan Ellis
> Fix For: 1.2.6
>
>
> Consider the case of a four node cluster, with nodes A and C in DC1, and
> nodes B and D in DC2. TokenMetadata will break this into ranges of (A-B],
> (B-C], (C-D], (D-A].
> If we have a single copy of a keyspace stored in DC1 only (none in DC2), then
> the current code correctly calculates that node A is responsible for ranges
> (C-D], (D-A].
> But, if we add a copy in DC2, then we only calculate (D-A] as primary range.
> This is a bug; we should not care what copies are in other datacenters, when
> computing what to repair in the local one.
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