Liu Shaohui created HBASE-10782:
-----------------------------------
Summary: Hadoop2 MR tests fail occasionally because of
mapreduce.jobhistory.address is no set in job conf
Key: HBASE-10782
URL: https://issues.apache.org/jira/browse/HBASE-10782
Project: HBase
Issue Type: Test
Reporter: Liu Shaohui
Priority: Minor
Hadoop2 MR tests fail occasionally with output like this:
{code}
-------------------------------------------------------------------------------
Test set: org.apache.hadoop.hbase.mapreduce.TestTableInputFormatScan1
-------------------------------------------------------------------------------
Tests run: 5, Failures: 0, Errors: 5, Skipped: 0, Time elapsed: 347.57 sec <<<
FAILURE!
testScanEmptyToAPP(org.apache.hadoop.hbase.mapreduce.TestTableInputFormatScan1)
Time elapsed: 50.047 sec <<< ERROR!
java.io.IOException: java.net.ConnectException: Call From
liushaohui-OptiPlex-990/127.0.0.1 to 0.0.0.0:10020 failed on connection
exception: java.net.ConnectException: Connection refused; For more details see:
http://wiki.apache.org/hadoop/ConnectionRefused
at
org.apache.hadoop.mapred.ClientServiceDelegate.invoke(ClientServiceDelegate.java:334)
at
org.apache.hadoop.mapred.ClientServiceDelegate.getJobStatus(ClientServiceDelegate.java:419)
at org.apache.hadoop.mapred.YARNRunner.getJobStatus(YARNRunner.java:524)
at org.apache.hadoop.mapreduce.Job$1.run(Job.java:314)
at org.apache.hadoop.mapreduce.Job$1.run(Job.java:311)
at java.security.AccessController.doPrivileged(Native Method)
...
{code}
The reason is that when MR job was running, the job client pulled the job
status from AppMaster. When the job is completed, the AppMaster will exit. At
this time, if the job client have not got the job completed event from
AppMaster, it will try to get job report from history server.
But in HBaseTestingUtility#startMiniMapReduceCluster, the config:
mapreduce.jobhistory.address is not copied to TestUtil's config.
CRUNCH-249 reported the same problem.
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