[jira] [Updated] (KAFKA-1894) Avoid long or infinite blocking in the consumer

["Guozhang Wang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-1894?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guozhang Wang updated KAFKA-1894:
---------------------------------
    Fix Version/s: 0.9.0

> Avoid long or infinite blocking in the consumer
> -----------------------------------------------
>
>                 Key: KAFKA-1894
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1894
>             Project: Kafka
>          Issue Type: Sub-task
>          Components: consumer
>            Reporter: Jay Kreps
>            Assignee: Jason Gustafson
>             Fix For: 0.9.0
>
>
> The new consumer has a lot of loops that look something like
> {code}
>   while(!isThingComplete())
>     client.poll();
> {code}
> This occurs both in KafkaConsumer but also in NetworkClient.completeAll. These retry loops are actually mostly the behavior we want but there are several cases where they may cause problems:
>  - In the case of a hard failure we may hang for a long time or indefinitely before realizing the connection is lost.
>  - In the case where the cluster is malfunctioning or down we may retry forever.
> It would probably be better to give a timeout to these. The proposed approach would be to add something like retry.time.ms=60000 and only continue retrying for that period of time.



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