cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Andy Tolbert (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-12774) Expose dc in Unavailable exception errors
Date Tue, 11 Oct 2016 21:30:20 GMT
Andy Tolbert created CASSANDRA-12774:
----------------------------------------

             Summary: Expose dc in Unavailable exception errors
                 Key: CASSANDRA-12774
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12774
             Project: Cassandra
          Issue Type: Bug
            Reporter: Andy Tolbert
            Priority: Minor


For protocol v5 or later, it could be useful if Unavailable optionally included the DC that
could not meet the CL.  

For example. if a user has a keyspace with RF of { dc1: 3, and dc2: 3 } and they make a query
at {{EACH_QUORUM}} and not enough replicas are available in dc2, an {{UnavailableException}}
will be sent to the client with X available and 2 required, but we don't know which DC failed.
 It looks like {{UnavailableException}} already has a constructor that takes in the DC (see
[here|https://github.com/apache/cassandra/blob/cassandra-3.0/src/java/org/apache/cassandra/exceptions/UnavailableException.java#L33])
so this could be feasible.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message