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https://issues.apache.org/jira/browse/SPARK-3129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14135116#comment-14135116
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Hari Shreedharan commented on SPARK-3129:
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It looks like Akka makes it difficult to connect back to a client (in this case
a BlockManagerSlaveActor) from a new server (in this case,
BlockManagerMasterActor). Since ActorRefs are serializable, I am going to
actually serialize the ActorRef to BlockManagerSlaveActor to the HDFS location
rather their locations - so we can simply startup from that to connect to the
slaves.
> Prevent data loss in Spark Streaming
> ------------------------------------
>
> Key: SPARK-3129
> URL: https://issues.apache.org/jira/browse/SPARK-3129
> Project: Spark
> Issue Type: New Feature
> Reporter: Hari Shreedharan
> Assignee: Hari Shreedharan
> Attachments: SecurityFix.diff, StreamingPreventDataLoss.pdf
>
>
> Spark Streaming can small amounts of data when the driver goes down - and the
> sending system cannot re-send the data (or the data has already expired on
> the sender side). The document attached has more details.
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