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From "Benedict (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-14735) LOCAL_QUORUM may speculate to non-local nodes, resulting in Timeout instead of Unavailable
Date Thu, 20 Sep 2018 09:50:00 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-14735?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Benedict updated CASSANDRA-14735:
---------------------------------
    Status: Patch Available  (was: Open)

Patch available [here|https://github.com/belliottsmith/cassandra/tree/14735]

This patch begins by cleaning up {{ConsistencyLevel}} to remove (most of) the functionality
that doesn't logically belong there:

* DC locality testing (to {{InOurDcTester}})
* Replica counting per DC and replication type (to {{Replicas}})
* Endpoint sufficiency testing / filtering to {{ReplicaPlans}}

The last commit makes the only functional changes, reworking the filtering code into separate
{{candidatesForRead}} and {{contactForRead}} methods, as well as moving from {{HashMap<String,
Integer>}} to {{ObjectIntOpenHashMap}} in the replica counting methods.

> LOCAL_QUORUM may speculate to non-local nodes, resulting in Timeout instead of Unavailable
> ------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-14735
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14735
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Benedict
>            Assignee: Benedict
>            Priority: Minor
>             Fix For: 4.0.x
>
>
> This issue applies to all of: rapid read protection, read repair's rapid read protection
and read repair's rapid write protection.



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