[jira] [Created] (SPARK-4783) Remove all System.exit calls from sparkcontext

["David Semeria (JIRA)" <ji...@apache.org>]

David Semeria created SPARK-4783:
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             Summary: Remove all System.exit calls from sparkcontext
                 Key: SPARK-4783
                 URL: https://issues.apache.org/jira/browse/SPARK-4783
             Project: Spark
          Issue Type: Bug
            Reporter: David Semeria


A common architectural choice for integrating Spark within a larger application is to employ a gateway to handle Spark jobs. The gateway is a server which contains one or more long-running sparkcontexts.

A typical server is created with the following pseudo code:
```
var continue = true
while (continue){
 try {
    server.run()
  } catch (e) {
  continue = log_and_examine_error(e)
}
```
The problem is that sparkcontext frequently calls System.exit when it encounters a problem which means the server can only be re-spawned at the process level, which is much more messy than the simple code above.

Therefore, I believe it makes sense to replace all System.exit calls in sparkcontext with the throwing of a fatal error. 



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