[jira] [Commented] (CASSANDRA-10020) Support eager retries for range queries

["Gautam Kumar (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-10020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14698256#comment-14698256 ] 

Gautam Kumar commented on CASSANDRA-10020:
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It takes a long time for the liveEndpoints structure to get updated, the range query timing out gives a lot of problem. Any special reason why you don't issue the range queries on all the nodes.

> Support eager retries for range queries
> ---------------------------------------
>
>                 Key: CASSANDRA-10020
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10020
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Gautam Kumar
>            Priority: Minor
>
> A simple query like `select * from table` may time out if one of the nodes fail.
> We had a 4-node cassandra cluster with RF=3 and CL=LOCAL_QUORUM. 
> The range query is issued to only two as per ConsistencyLevel.java: liveEndpoints.subList(0, Math.min(liveEndpoints.size(), blockFor(keyspace)));
> If a node fails amongst this sublist, the query will time out. Why don't you issue range queries to all replicas? 



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