Andrew Onischuk created AMBARI-5094:
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Summary: yarn.exclude FileNotFoundException during RM startup
Key: AMBARI-5094
URL: https://issues.apache.org/jira/browse/AMBARI-5094
Project: Ambari
Issue Type: Bug
Reporter: Andrew Onischuk
Assignee: Andrew Onischuk
Fix For: 1.5.0
On an Ambari deployed cluster, the following configs are set in yarn-site.xml:
<property>
<name>yarn.resourcemanager.nodes.exclude-path</name>
<value>/etc/hadoop/conf/yarn.exclude</value>
</property>
and /etc/hadoop/conf/yarn.exclude does not exist.
This causes an error to be thrown in RM logs:
{noformat}
2014-02-26 15:34:19,721 WARN
org.apache.hadoop.yarn.server.resourcemanager.NodesListManager: Failed to init
hostsReader, disabling
java.io.FileNotFoundException: /etc/hadoop/conf/yarn.exclude (No such file or
directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:138)
at java.io.FileInputStream.<init>(FileInputStream.java:97)
at
org.apache.hadoop.yarn.LocalConfigurationProvider.getConfigurationInputStream(LocalConfigurationProvider.java:45)
at
org.apache.hadoop.yarn.server.resourcemanager.NodesListManager.createHostsFileReader(NodesListManager.java:219)
at
org.apache.hadoop.yarn.server.resourcemanager.NodesListManager.serviceInit(NodesListManager.java:76)
at
org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
at
org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$RMActiveServices.serviceInit(ResourceManager.java:451)
at
org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.createAndInitActiveServices(ResourceManager.java:804)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceInit(ResourceManager.java:217)
at
org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:1016)
2014-02-26 15:34:19,723 INFO org.apache.hadoop.util.HostsFileReader: Refreshing
hosts (include/exclude) list
{noformat}
The error is harmless and RM starts up fine but with this exception in the
logs. Either an empty file should be created or the property has to be removed
from yarn-site.xml
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