You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2015/08/05 00:32:04 UTC
[jira] [Assigned] (SPARK-9619) Restarting the receiver's
BlockGenerator does clear previous data
[ https://issues.apache.org/jira/browse/SPARK-9619?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-9619:
-----------------------------------
Assignee: Apache Spark (was: Tathagata Das)
> Restarting the receiver's BlockGenerator does clear previous data
> -----------------------------------------------------------------
>
> Key: SPARK-9619
> URL: https://issues.apache.org/jira/browse/SPARK-9619
> Project: Spark
> Issue Type: Bug
> Components: Streaming
> Reporter: Tathagata Das
> Assignee: Apache Spark
> Priority: Minor
>
> The internal default block generator that is used by receivers gets reused across receiver restarts. This can lead to duplicate data. This is sort-of-okay as receivers really provide at-least once guarantee at best. Furthermore Reliable receivers like the ReliableKafkaReceiver, did not reuse BlockGenerator objects hence did not have the problem.
> The solution is to ensure that the internal buffer of the BlockGenerator is cleared every time it is started.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org