Denes Bodo created KNOX-1004:
--------------------------------
Summary: Failing (flaky) Knox unit test:
org.apache.hadoop.gateway.GatewayAppFuncTest.testDefaultTopology
Key: KNOX-1004
URL: https://issues.apache.org/jira/browse/KNOX-1004
Project: Apache Knox
Issue Type: Bug
Components: Tests
Affects Versions: 0.12.0
Environment: local machine
Reporter: Denes Bodo
Priority: Minor
Found flaky unit test in Knox:
org.apache.hadoop.gateway.GatewayAppFuncTest.testDefaultTopology
The problem occurs when the run is a little bit slower. The directory deletion
during test cleanup fails due to missing directories. The directories are being
deleted by Knox TopologyService.
The problem in code where the second deletion is failing sometimes:
{noformat}
@After
public void cleanupTest() throws Exception {
FileUtils.cleanDirectory( new File( config.getGatewayTopologyDir() ) );
FileUtils.cleanDirectory( new File( config.getGatewayDeploymentDir() ) );
}
{noformat}
Due to removing working directories are being deleted during cleanupSuite I
suggest remove deployment directory ignoring file-not-found errors. For example:
{noformat}
@After
public void cleanupTest() throws Exception {
...
FileUtils.deleteQuietly( new File( config.getGatewayDeploymentDir() ) );
}
{noformat}
h2. Reproduction:
Place a breakpoint at the deployment deletion and then slowly follow the steps.
During in a file browser the deletion can be seen.
Or place some delay between topology and deployment deletion in cleanupTest.
(does not tested)
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