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From "David Tombs (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (EXEC-59) execute() does not return if executed process spawned other processes
Date Mon, 20 Jun 2011 20:32:48 GMT

     [ https://issues.apache.org/jira/browse/EXEC-59?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

David Tombs updated EXEC-59:
----------------------------

    Attachment: spawner.sh

Script to simulate a process that spawns a helper process. Run with DefaultExecutor.execute("./spawner.sh")
to reproduce the issue. execute() will not return until the sleep command exits.

> execute() does not return if executed process spawned other processes
> ---------------------------------------------------------------------
>
>                 Key: EXEC-59
>                 URL: https://issues.apache.org/jira/browse/EXEC-59
>             Project: Commons Exec
>          Issue Type: Bug
>    Affects Versions: 1.1
>         Environment: Linux x86_64
>            Reporter: David Tombs
>            Priority: Minor
>         Attachments: spawner.sh
>
>
> When executing a process that spawns other processes, DefaultExecutor.execute() does
not return until these secondary processes die.
> This is a problem for me because I am executing a long-running service that uses long-running
helper processes. I want to know if the service process crashes (which leaves the helper processes
running), but I never get any notice because execute() does not return. It blocks while calling
PumpStreamHandler.stop().

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