[jira] [Created] (HDDS-3330) TestDeleteWithSlowFollower is still flaky

["Marton Elek (Jira)" <ji...@apache.org>]

Marton Elek created HDDS-3330:
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             Summary: TestDeleteWithSlowFollower is still flaky
                 Key: HDDS-3330
                 URL: https://issues.apache.org/jira/browse/HDDS-3330
             Project: Hadoop Distributed Data Store
          Issue Type: Improvement
          Components: test
            Reporter: Marton Elek
            Assignee: Shashikant Banerjee


{code}
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 666.209 s <<< FAILURE! - in org.apache.hadoop.ozone.client.rpc.TestDeleteWithSlowFollower
testDeleteKeyWithSlowFollower(org.apache.hadoop.ozone.client.rpc.TestDeleteWithSlowFollower)  Time elapsed: 640.745 s  <<< ERROR!
java.io.IOException: INTERNAL_ERROR org.apache.hadoop.ozone.om.exceptions.OMException: Allocated 0 blocks. Requested 1 blocks
        at org.apache.hadoop.ozone.client.io.KeyOutputStream.handleWrite(KeyOutputStream.java:229)
        at org.apache.hadoop.ozone.client.io.KeyOutputStream.handleRetry(KeyOutputStream.java:402)
        at org.apache.hadoop.ozone.client.io.KeyOutputStream.handleException(KeyOutputStream.java:347)
        at org.apache.hadoop.ozone.client.io.KeyOutputStream.handleFlushOrClose(KeyOutputStream.java:458)
        at org.apache.hadoop.ozone.client.io.KeyOutputStream.close(KeyOutputStream.java:509)
        at org.apache.hadoop.ozone.client.io.OzoneOutputStream.close(OzoneOutputStream.java:60)
        at org.apache.hadoop.ozone.client.rpc.TestDeleteWithSlowFollower.testDeleteKeyWithSlowFollower(TestDeleteWithSlowFollower.java:225)
{code}

I learned this from [~shashikant]

bq. we kill a datanode after some IO, SCM is out of safe mode by then . SCM takes time to destroy a pipeline and form a new one
bq. With only minimal set of dn in cluster, if we want to write again, we need to wait for a new pipeline to open up before writing again

Will turn off this test until the fix.




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