LuciferYang commented on PR #37826:
URL: https://github.com/apache/spark/pull/37826#issuecomment-1242763731

   
https://github.com/apache/spark/blob/bf5103ae5bb938102850160048e2a1656e648244/resource-managers/yarn/src/test/scala/org/apache/spark/deploy/yarn/YarnShuffleIntegrationSuite.scala#L46-L54
   
   add `yarnConfig.setBoolean(YarnConfiguration.NM_RECOVERY_ENABLED, true)` to 
above `newYarnConfig` method, and test with hadoop-2.7
   
   ```
   build/mvn clean install -pl resource-managers/yarn -Pyarn -Dtest=none 
-DwildcardSuites=org.apache.spark.deploy.yarn.YarnShuffleIntegrationWithLevelDBBackendSuite
 -Phadoop-2
   ```
   
   then failed as follows:
   
   ```
   YarnShuffleIntegrationWithLevelDBBackendSuite:
   org.apache.spark.deploy.yarn.YarnShuffleIntegrationWithLevelDBBackendSuite 
*** ABORTED ***
     java.lang.IllegalArgumentException: Cannot support recovery with an 
ephemeral server port. Check the setting of yarn.nodemanager.address
     at 
org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl.serviceStart(ContainerManagerImpl.java:395)
     at 
org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
     at 
org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:120)
     at 
org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceStart(NodeManager.java:272)
     at 
org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
     at 
org.apache.hadoop.yarn.server.MiniYARNCluster$NodeManagerWrapper.serviceStart(MiniYARNCluster.java:560)
     at 
org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
     at 
org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:120)
     at 
org.apache.hadoop.yarn.server.MiniYARNCluster.serviceStart(MiniYARNCluster.java:278)
     at 
org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
     ...
   Run completed in 3 seconds, 992 milliseconds.
   Total number of tests run: 0
   Suites: completed 1, aborted 1
   Tests: succeeded 0, failed 0, canceled 0, ignored 0, pending 0
   *** 1 SUITE ABORTED ***
   ```
   
   It seems that we need to use a static port to support testing recovery
   
   
   


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