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From "Josh Rosen (JIRA)" <>
Subject [jira] [Commented] (SPARK-4991) Worker should reconnect to Master when Master actor restart
Date Fri, 08 Jan 2016 01:41:40 GMT


Josh Rosen commented on SPARK-4991:

Is this still relevant after we remove the Akka RPC / use of Akka internally in Spark? 

> Worker should reconnect to Master when Master actor restart
> -----------------------------------------------------------
>                 Key: SPARK-4991
>                 URL:
>             Project: Spark
>          Issue Type: Improvement
>          Components: Deploy, Spark Core
>    Affects Versions: 1.0.0, 1.1.0, 1.2.0
>            Reporter: Zhang, Liye
> This is a following JIRA of [SPARK-4989|].
when Master akka actor encounter an exception, the Master will restart (akka actor restart
not JVM restart). And all old information are cleared on Master (including workers, applications,
etc). However, the workers are not aware of this at all. The state of the cluster is that:
the master is on, and all workers are also on, but master is not aware of the exists of workers,
and will ignore all worker's heartbeat because all workers are not registered. So that the
whole cluster is not available.
> For some other information about this part, please refer to [SPARK-3736|]
and [SPARK-4592|]

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