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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/50390/
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(Updated July 25, 2016, 1:03 p.m.)


Review request for Ambari, Alejandro Fernandez, Myroslav Papirkovskyy, Nate 
Cole, and Robert Levas.


Bugs: AMBARI-17878
    https://issues.apache.org/jira/browse/AMBARI-17878


Repository: ambari


Description (updated)
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*add service operation hangs in Preparing to execute Set Keytab*

1. install ambari2.4.0 with stack 2.4
2. express upgrade to stack 2.5
3. finalize the upgrade
4. add new services ( kms,atlas,slider)

Null pointer exception is thrown in ambari-server logs

{code}

18 Jul 2016 07:12:32,025 ERROR [ambari-metrics-retrieval-service-thread-105] 
MetricsRetrievalService:421 - Unable to retrieve metrics from 
http://host:8744/api/v1/cluster/summary. Subsequent failures will be suppressed 
from the log for 5 minutes.
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at 
java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:211)
at sun.net.www.http.HttpClient.New(HttpClient.java:308)
at sun.net.www.http.HttpClient.New(HttpClient.java:326)
at 
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1169)
at 
sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1105)
at 
sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:999)
at 
sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:933)
at 
sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1513)
at 
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1441)
at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
at 
org.apache.ambari.server.controller.internal.URLStreamProvider.processURL(URLStreamProvider.java:218)
at 
org.apache.ambari.server.controller.internal.URLStreamProvider.processURL(URLStreamProvider.java:142)
at 
org.apache.ambari.server.controller.internal.URLStreamProvider.readFrom(URLStreamProvider.java:116)
at 
org.apache.ambari.server.controller.internal.URLStreamProvider.readFrom(URLStreamProvider.java:121)
at 
org.apache.ambari.server.state.services.MetricsRetrievalService$MetricRunnable.run(MetricsRetrievalService.java:382)
at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
{code}

{code}


18 Jul 2016 07:42:39,979  WARN [ambari-action-scheduler] ActionScheduler:202 - 
Exception received
java.lang.NullPointerException
at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
at org.apache.ambari.server.agent.ActionQueue.getQueue(ActionQueue.java:52)
at org.apache.ambari.server.agent.ActionQueue.enqueue(ActionQueue.java:61)
at 
org.apache.ambari.server.actionmanager.ActionScheduler.cancelCommandOnTimeout(ActionScheduler.java:1084)
at 
org.apache.ambari.server.actionmanager.ActionScheduler.processInProgressStage(ActionScheduler.java:725)
at 
org.apache.ambari.server.actionmanager.ActionScheduler.doWork(ActionScheduler.java:290)
at 
org.apache.ambari.server.actionmanager.ActionScheduler.run(ActionScheduler.java:197)
at java.lang.Thread.run(Thread.java:745)
{code}

Note: this is an upgraded cluster from hdp-2.4 to hdp-2.5 , addition of the 
service is done after upgrade.


Diffs
-----

  
ambari-server/src/main/java/org/apache/ambari/server/actionmanager/ActionScheduler.java
 205ef9f 
  
ambari-server/src/test/java/org/apache/ambari/server/actionmanager/TestActionScheduler.java
 0b24765 

Diff: https://reviews.apache.org/r/50390/diff/


Testing
-------

mvn clean test


Thanks,

Dmitro Lisnichenko

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