adoroszlai opened a new pull request #2663:
URL: https://github.com/apache/ozone/pull/2663
## What changes were proposed in this pull request?
`MiniOzoneClusterProvider` may timeout (100 seconds) while waiting for a
cluster to become available. In this case it simply returns `null` without
warning. This results in NPE when trying to use the cluster in test.
```
testAllDataNodeFailuresAfterScmPostFinalizeUpgrade Time elapsed: 100.076 s
<<< ERROR!
java.lang.NullPointerException
at
org.apache.hadoop.hdds.upgrade.TestHDDSUpgrade.init(TestHDDSUpgrade.java:173)
at
org.apache.hadoop.hdds.upgrade.TestHDDSUpgrade.setUp(TestHDDSUpgrade.java:135)
```
This change makes `MiniOzoneClusterProvider` throw exception if cluster
could not be started. This way test failure is a bit more explicit.
https://issues.apache.org/jira/browse/HDDS-5765
## How was this patch tested?
Regular CI.
https://github.com/adoroszlai/hadoop-ozone/runs/3651226035
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