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https://issues.apache.org/jira/browse/MRQL-48?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Leonidas Fegaras updated MRQL-48:
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Attachment: MRQL-48.patch
> Fix global variable bindings in Spark and Flink modes
> -----------------------------------------------------
>
> Key: MRQL-48
> URL: https://issues.apache.org/jira/browse/MRQL-48
> Project: MRQL
> Issue Type: Bug
> Affects Versions: 0.9.4
> Reporter: Leonidas Fegaras
> Assignee: Leonidas Fegaras
> Priority: Critical
> Attachments: MRQL-48.patch
>
>
> The following patch fixes the bug in passing global bindings (such as the
> ones set by the MRQL store statement) from master to worker nodes. It affects
> Spark and Flink modes. It also fixes new bugs found in the Flink evaluator
> for passing text file parsing information from master to workers. Couldn't
> use Spark broadcast variables because these may not be broadcast to all
> workers at all times (Spark may add workers later in the process). I think
> this is a Spark bug. My solution was to pass the global environment as a
> serialized object from master to workers during each DataSet operation. This
> works OK but may be inefficient.
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