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From "sankalp kohli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-12075) Include whether or not the client should retry the request when throwing a RequestExecutionException
Date Tue, 28 Jun 2016 23:23:10 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-12075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15353915#comment-15353915
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sankalp kohli commented on CASSANDRA-12075:
-------------------------------------------

If you get a Unavailable from co-ordinator, you should retry it on another host since this
co-ordinator could be doing a long GC pause. 

We will be adding some more exceptions like throttles, too many tombstones exception and it
will be good for driver to know whether it should be retying on a particular exception. This
will be a better approach than driver special casing which exception to retry or not. Also
with different implementations of the driver, it will be a lot helpful to not have this decision
left to the client. 

> Include whether or not the client should retry the request when throwing a RequestExecutionException
> ----------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-12075
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12075
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Geoffrey Yu
>            Assignee: Geoffrey Yu
>            Priority: Minor
>
> Some requests that result in an error should not be retried by the client. Right now
if the client gets an error, it has no way of knowing whether or not it should retry. We can
include an extra field in each {{RequestExecutionException}} that will indicate whether the
client should retry, retry on a different host, or not retry at all.



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