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From Stephan Burkard <>
Subject Re: LevelDB and Route-Tests
Date Wed, 22 Jan 2014 16:39:31 GMT
OK, what I found out until now:

- All test classes of the Camel LevelDB component contain only 1 Test
- The POM of the component contains a surefire config
  => what means the same as "<forkMode>always</forkMode>"
  => what means "fork for each test-class" (yes, the term "pertest" is very

Therefore I guess the developers of the component had the same problems.

But that means that in Eclipse only 1 Test can run in the same test-run,
because the JUnit-Testrunner of Eclipse has no configuration to fork the


On Tue, Jan 21, 2014 at 1:04 PM, Stephan Burkard <> wrote:

> Hi Camel users
> I ran into another problem with the LevelDB aggregator persistence. The
> error I get is "Error opening LevelDB with file [path to
> persistentFileName]". The cause of it is "LOCK: already held by process".
> This happens when I run multiple route tests using CamelSpringTestSupport.
> The individual tests run fine, if they run in the same test-run, the first
> succeeds and the rest fails with the error above.
> Since the Camel context is restarted per test, I also remove the whole
> directory with the levelDB file in the @Before method of my test-classes,
> so that the DB is "blank" for every test method.
> Is this a wrong behaviour for the tests? What is the best practice to have
> a new LevelDB for every test case.
> Thanks for any help
> Stephan

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