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https://issues.apache.org/jira/browse/HBASE-18588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16128316#comment-16128316
 ] 

Guanghao Zhang commented on HBASE-18588:
----------------------------------------

[~stack] sir, it is not test failed. It may be related to hbase-spark module? 
{code}
[INFO] --- maven-compiler-plugin:3.6.1:testCompile (default-testCompile) @ 
hbase-spark ---
[INFO] Compiling 1 source file to 
/home/hao/open_source/hbase/hbase-spark/target/test-classes
[INFO] 
/home/hao/open_source/hbase/hbase-spark/src/test/java/org/apache/hadoop/hbase/spark/TestJavaHBaseContext.java:
 
/home/hao/open_source/hbase/hbase-spark/src/test/java/org/apache/hadoop/hbase/spark/TestJavaHBaseContext.java使用了未经检查或不安全的操作。
[INFO] 
/home/hao/open_source/hbase/hbase-spark/src/test/java/org/apache/hadoop/hbase/spark/TestJavaHBaseContext.java:
 有关详细信息, 请使用 -Xlint:unchecked 重新编译。
[INFO] 
[INFO] --- maven-surefire-plugin:2.19.1:test (default-test) @ hbase-spark ---
[INFO] 
[INFO] --- scalatest-maven-plugin:1.0:test (test) @ hbase-spark ---
Discovery starting.
Discovery completed in 1 second, 821 milliseconds.
Run starting. Expected test count is: 79
HBaseDStreamFunctionsSuite:
Formatting using clusterid: testClusterID
*** RUN ABORTED ***
  java.io.IOException: Shutting down
  at org.apache.hadoop.hbase.MiniHBaseCluster.init(MiniHBaseCluster.java:232)
  at org.apache.hadoop.hbase.MiniHBaseCluster.<init>(MiniHBaseCluster.java:94)
  at 
org.apache.hadoop.hbase.HBaseTestingUtility.startMiniHBaseCluster(HBaseTestingUtility.java:1111)
  at 
org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:1065)
  at 
org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:936)
  at 
org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:930)
  at 
org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:859)
  at 
org.apache.hadoop.hbase.spark.HBaseDStreamFunctionsSuite.beforeAll(HBaseDStreamFunctionsSuite.scala:41)
  at 
org.scalatest.BeforeAndAfterAll$class.beforeAll(BeforeAndAfterAll.scala:187)
  at 
org.apache.hadoop.hbase.spark.HBaseDStreamFunctionsSuite.beforeAll(HBaseDStreamFunctionsSuite.scala:30)
  ...
  Cause: java.lang.RuntimeException: Failed construction of Master: class 
org.apache.hadoop.hbase.master.HMasterorg.apache.hadoop.hbase.shaded.io.netty.channel.epoll.NativeStaticallyReferencedJniMethods.epollin()I
{code}

> Verify we're using netty .so epolling on linux post HBASE-18271
> ---------------------------------------------------------------
>
>                 Key: HBASE-18588
>                 URL: https://issues.apache.org/jira/browse/HBASE-18588
>             Project: HBase
>          Issue Type: Task
>          Components: test
>    Affects Versions: 2.0.0
>            Reporter: stack
>            Assignee: stack
>             Fix For: 2.0.0
>
>
> This is a task to verify that indeed we are using .so native epoll on linux. 
> This task is probably unnecessary since we'd fail on the linux build box if 
> this was not in place but verify that our relocation is indeed finding the 
> native code. Assigned myself.



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