[
https://issues.apache.org/jira/browse/CASSANALYTICS-101?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sudipta Laha updated CASSANALYTICS-101:
---------------------------------------
Authors: Sudipta Laha
Test and Documentation Plan:
#### Test Setup
* Cassandra cluster:
* DataCenter1 : [Node1, Node2, Node3], RF=3
* DataCenter2 : [Node4, Node5, Node6], RF=3
* Replication strategy:
{
'class' : 'NetworkTopologyStrategy',
'datacenter1' : 3,
'datacenter2' : 3
}
* Read repair disabled.
* Auto repair disabled.
#### Test Cases
* TC#1: Happy Path, ALL==QUORUM==EACH_QUORUM
* Write [K1, V1] with ALL consistency level
* Bulk read separately with ALL, QUORUM and EACH_QUORUM
* Use driver to read separately with ALL, QUORUM and EACH_QUORUM
* All bulk reads and driver reads should return the same data
* TC#2: QUORUM != EACH_QUORUM
* Write [K1, V1] with ALL consistency level
* Write [K1, V2] locally to only Node5, Node6
* Bulk read separately with ALL, QUORUM and EACH_QUORUM
* Use driver to read separately with ALL, QUORUM and EACH_QUORUM
* ALL should return [K1, V2], QUORUM should return [K1, V1], EACH_QUORUM
should return [K1, V2]
* Driver results should match bulk read results
* TC#3: EACH_QUORUM succeeds with single down nodes in each DC
* Write [K1, V1] with ALL consistency level
* Shut down Node1 and Node4
* Bulk read with EACH_QUORUM
* Use driver to read with EACH_QUORUM
* Bulk read should succeed and return [K1, V1]
* Driver results should match bulk read results
* TC#4: QUORUM succeeds but EACH_QUORUM fails with multiple down nodes in one DC
* Write [K1, V1] with ALL consistency level
* Shut down Node5 and Node6
* Bulk read separately with QUORUM and EACH_QUORUM
* Use driver to read with QUORUM and EACH_QUORUM
* QUORUM should succeed with [K1, V1] result
* EACH_QUORUM should fail with NotEnoughReplicas error.
* Driver results should match bulk read results
Status: Patch Available (was: Open)
> Add EACH_QUORUM consistency level support in bulk reader
> --------------------------------------------------------
>
> Key: CASSANALYTICS-101
> URL: https://issues.apache.org/jira/browse/CASSANALYTICS-101
> Project: Apache Cassandra Analytics
> Issue Type: New Feature
> Components: Reader
> Reporter: Sudipta Laha
> Assignee: Sudipta Laha
> Priority: Normal
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The bulk reader supports various consistency levels including LOCAL_QUORUM,
> but it does not support EACH_QUORUM consistency. This limitation creates a
> significant problem for customers who need globally consistent data in their
> analytics workloads. We need EACH_QUORUM consistency level support in the
> {color:#1f2328}bulk reader to address limitation.{color}
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
