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From "Kristian Waagan (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-4700) Add method to obtain a bogus port in TestConfiguration
Date Wed, 14 Jul 2010 11:44:49 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4700?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kristian Waagan updated DERBY-4700:
-----------------------------------

    Attachment: derby-4700-2a-static_bogus.diff

Patch 2a makes the bogus port static, such that it is shared between all TestConfiguration
instances in a VM. It also increases the max port count to 11 - we're already using that many
ports so the next change that requires another alternative port will trigger the assert in
getNextAvailablePort().

Regression tests passed (traditional serial run).
Patch ready for review.
I do plan to commit this fix shortly to stop the tinderbox test from failing. I'll update
the wiki page when I commit.

> Add method to obtain a bogus port in TestConfiguration
> ------------------------------------------------------
>
>                 Key: DERBY-4700
>                 URL: https://issues.apache.org/jira/browse/DERBY-4700
>             Project: Derby
>          Issue Type: Improvement
>          Components: Test
>    Affects Versions: 10.7.0.0
>            Reporter: Kristian Waagan
>            Assignee: Kristian Waagan
>            Priority: Minor
>             Fix For: 10.6.1.1, 10.7.0.0
>
>         Attachments: derby-4700-1a.diff, derby-4700-1b.diff, derby-4700-2a-static_bogus.diff
>
>
> In some cases one needs to obtain a port number on which there is no Derby network server.
> Today this is solved in an ad-hoc way, for instance by using the current port minus one.
When running tests in parallel, there is a chance that a port where there actually is a Derby
network server listening is picked.
> As a start, I suggest that the bogus port is allocated to the last port in the port range
configured for the run: baseport + MAX_PORTS_USED -1.

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