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https://issues.apache.org/jira/browse/HDFS-9493?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tony Wu updated HDFS-9493:
--------------------------
Attachment: HDFS-9493.002.patch
In v2 patch:
* {{Use BlockManagerTestUtil#noticeDeadDatanode()}} to reduce the test run
time. After this call the NN will declare the DN dead right away, rather than
waiting for HB timeout.
* Create a helper function {{stopDnAndWaitForNnToRemoveIt()}} for test cases to
stop a DN and wait for it to be removed by DN.
* Create a new {{MiniDFSCluster}} for every test case.
Verified the {{testMetaSave}} runs fine on OSX & Linux (CentOS). Verified the
run time reduced from 30+ seconds to 17 seconds.
> Test o.a.h.hdfs.server.namenode.TestMetaSave fails in trunk
> -----------------------------------------------------------
>
> Key: HDFS-9493
> URL: https://issues.apache.org/jira/browse/HDFS-9493
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: test
> Reporter: Mingliang Liu
> Assignee: Tony Wu
> Attachments: HDFS-9493.001.patch, HDFS-9493.002.patch
>
>
> Tested in both Gentoo Linux and Mac.
> {quote}
> -------------------------------------------------------
> T E S T S
> -------------------------------------------------------
> Running org.apache.hadoop.hdfs.server.namenode.TestMetaSave
> Tests run: 3, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 34.159 sec
> <<< FAILURE! - in org.apache.hadoop.hdfs.server.namenode.TestMetaSave
> testMetasaveAfterDelete(org.apache.hadoop.hdfs.server.namenode.TestMetaSave)
> Time elapsed: 15.318 sec <<< FAILURE!
> java.lang.AssertionError: null
> at org.junit.Assert.fail(Assert.java:86)
> at org.junit.Assert.assertTrue(Assert.java:41)
> at org.junit.Assert.assertTrue(Assert.java:52)
> at
> org.apache.hadoop.hdfs.server.namenode.TestMetaSave.testMetasaveAfterDelete(TestMetaSave.java:154)
> {quote}
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