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https://issues.apache.org/jira/browse/AMBARI-20447?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15924700#comment-15924700
]
Hadoop QA commented on AMBARI-20447:
------------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12858720/AMBARI-20447.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:red}-1 tests included{color}. The patch doesn't appear to include
any new or modified tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
ambari-server.
Test results:
https://builds.apache.org/job/Ambari-trunk-test-patch/11026//testReport/
Console output:
https://builds.apache.org/job/Ambari-trunk-test-patch/11026//console
This message is automatically generated.
> YARN service check failed during HDP 2.4-2.6 rolling upgrade with YARN HA
> enabled
> ---------------------------------------------------------------------------------
>
> Key: AMBARI-20447
> URL: https://issues.apache.org/jira/browse/AMBARI-20447
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Reporter: Dmitry Lysnichenko
> Assignee: Dmitry Lysnichenko
> Fix For: 2.5.0
>
> Attachments: AMBARI-20447.patch
>
>
> The problem with YARN service check failure is that during Rolling upgrade
> from HDP-2.4 to HDP-2.6 (with YARN HA turned on):
> # After "core master restart" step, yarn client uses new (HDP-2.6) config and
> fails with Class
> org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider not found
> . Forcing yarn client to use old (HDP-2.4) config until client binary is
> updated helps here
> # After "core slave restart" step, using old YARN client config with old YARN
> client binary does not help. NM/RM classpath points to HDP-2.6. App job gets
> scheduled, but then fails with log:
> {code}17/03/06 16:39:27 INFO service.AbstractService: Service
> org.apache.hadoop.yarn.client.api.impl.AMRMClientImpl failed in state
> STARTED; cause: java.lang.RuntimeException: java.lang.RuntimeException:
> java.lang.ClassNotFoundException: Class
> org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider not found
> java.lang.RuntimeException: java.lang.RuntimeException:
> java.lang.ClassNotFoundException: Class
> org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider not found
> at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2240)
> at
> org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:160)
> at org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:93)
> at
> org.apache.hadoop.yarn.client.ClientRMProxy.createRMProxy(ClientRMProxy.java:72)
> at
> org.apache.hadoop.yarn.client.api.impl.AMRMClientImpl.serviceStart(AMRMClientImpl.java:186)
> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
> at
> org.apache.hadoop.yarn.client.api.async.impl.AMRMClientAsyncImpl.serviceStart(AMRMClientAsyncImpl.java:96)
> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
> at
> org.apache.hadoop.yarn.applications.distributedshell.ApplicationMaster.run(ApplicationMaster.java:559)
> at
> org.apache.hadoop.yarn.applications.distributedshell.ApplicationMaster.main(ApplicationMaster.java:299)
> Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException:
> Class org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider not
> found
> at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2208)
> at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2232)
> ... 9 more
> Caused by: java.lang.ClassNotFoundException: Class
> org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider not found
> at
> org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:2114)
> at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2206)
> ... 10 more
> 17/03/06 16:39:27 INFO service.AbstractService: Service
> org.apache.hadoop.yarn.client.api.async.AMRMClientAsync failed in state
> STARTED; cause: java.lang.RuntimeException: java.lang.RuntimeException:
> java.lang.ClassNotFoundException: Class
> org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider not found
> java.lang.RuntimeException: java.lang.RuntimeException:
> java.lang.ClassNotFoundException: Class
> org.apache.hadoop.yarn.client.RequestHedgingRMFailoverProxyProvider not found
> at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2240)
> at
> org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:160)
> at org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:93)
> at
> org.apache.hadoop.yarn.client.ClientRMProxy.createRMProxy(ClientRMProxy.java:72)
> at
> {code}
> # After yarn client is updated to a new binary, service check works fine.
> ----
> Bottom line, this is a known problem with DistributedShell - it was never
> fixed to not rely on cluster's configuration. What this means is that client
> configuration changes like this can break DistributedShell apps over upgrades.
> Unfortunately nothing we do now can fix this broken upgrade for
> DistributedShell - as to ideally fix it, we have to go back in time and
> provide changes.
> We have to do two things
> # Disable DistributedShell based service-check when we go from 2.4 > 2.6. The
> RequestHedgingRMFailoverProxyProvider is added in 2.5, so 2.5 > 2.6 is fine.
> # Also fix yarn-site.xml starting 2.6 with the following change to avoid this
> in the future. The change is from using $HADOOP_CONF_DIR which is inherited
> from the NodeManager to /etc/hadoop/conf/ which is always tied to the client
> version.
> {code}
> <property>
> <name>yarn.application.classpath</name>
> <value>/etc/hadoop/conf/,/usr/hdp/current/hadoop-client/*,/usr/hdp/current/hadoop-client/lib/*,/usr/hdp/current/hadoop-hdfs-client/*,/usr/hdp/current/hadoop-hdfs-client/lib/*,/usr/hdp/current/hadoop-yarn-client/*,/usr/hdp/current/hadoop-yarn-client/lib/*</value>
> </property>
> {code}
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