[CASSANDRA-15501] Duplicate results with DISTINCT queries in mixed mode 2.1/3.0 - ASF JIRA

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Details

Type: Bug
Status: Resolved
Priority: Normal
Resolution: Fixed
Fix Version/s: 2.2.17, 3.0.21, 3.11.7, 4.0-beta1, 4.0
Component/s: Legacy/Core
Labels:
None

Bug Category:
Correctness - Transient Incorrect Response
Severity:
Normal
Complexity:
Normal
Discovered By:
Adhoc Test
Platform:

All
Impacts:

None
Since Version:

3.0 alpha 1
Source Control Link:

https://github.com/apache/cassandra/commit/16f639af94f56cdc7145299730278e27a9113e2e
Test and Documentation Plan:

Hide

new upgrade test & cci runs

Show
new upgrade test & cci runs

Description

When a client switches coordinator from a 2.1 node to a 3.0 node it sends a 2.1 paging state to the 3.0 node. The 2.1 PagingState does not have remainingInPartition so on the 3.0 side we default this to Integer.MAX_VALUE. This value is then used to decide if the lastKey should be included in the result.

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Assignee:: Marcus Eriksson

Reporter:: Marcus Eriksson

Authors:: Marcus Eriksson

Reviewers:: Aleksey Yeschenko, Alex Petrov, Sam Tunnicliffe

Votes:: 0 Vote for this issue

Watchers:: 5 Start watching this issue

Dates

Created:: 13/Jan/20 08:03

Updated:: 15/May/20 08:53

Resolved:: 16/Apr/20 11:02