[jira] [Commented] (CASSANDRA-3240) CQL JDBC can only specify one host, thus doesn't support failover

["M Chen (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-3240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13112321#comment-13112321 ] 

M Chen commented on CASSANDRA-3240:
-----------------------------------

an old article on Hector where they provide multiple thrift host:port values
http://prettyprint.me/2010/03/03/load-balancing-and-improved-failover-in-hector/

Pelops appears to do something similar.

I've seen a few connection pool items, although pool wrappers for JDBC already exist
(if CQL JDBC is compliant enough for them)
but none that help with failover

> CQL JDBC can only specify one host, thus doesn't support failover
> -----------------------------------------------------------------
>
>                 Key: CASSANDRA-3240
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3240
>             Project: Cassandra
>          Issue Type: Bug
>          Components: API
>    Affects Versions: 0.8.6
>            Reporter: M Chen
>
> The CQL JDBC driver takes a connection string of the form
> jdbc:cassandra:user/pass@thrifthost:thriftport
> but 
> 1. only one value for thrifthost is supported, 
> 2. CQL JDBC does not appear to allow access to the ring members 
> (e.g. so that as long as the specified host was alive long enough to get the ring, 
> from then on some other logic can try different host:port values if needed). 

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