Harsh J created MAPREDUCE-4343:
----------------------------------
Summary: ZK recovery support for ResourceManager
Key: MAPREDUCE-4343
URL: https://issues.apache.org/jira/browse/MAPREDUCE-4343
Project: Hadoop Map/Reduce
Issue Type: Improvement
Reporter: Harsh J
MAPREDUCE-279 included bits and pieces of possible ZK integration for YARN's
RM, but looks like it failed to complete it (for scalability reasons? etc?) and
there seems to be no JIRA tracking this feature that has been already claimed
publicly as a good part about YARN.
If it did complete it, we should document how to use it. Setting the following
only yields:
{code}
<property>
<name>yarn.resourcemanager.store.class</name>
<value>org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKStore</value>
</property>
<property>
<name>yarn.resourcemanager.zookeeper-store.address</name>
<value>test.vm:2181/yarn-recovery-store</value>
</property>
{code}
{code}
Error starting ResourceManager
java.lang.RuntimeException: java.lang.NoSuchMethodException:
org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKStore.<init>()
at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:128)
at
org.apache.hadoop.yarn.server.resourcemanager.recovery.StoreFactory.getStore(StoreFactory.java:32)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:621)
Caused by: java.lang.NoSuchMethodException:
org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKStore.<init>()
at java.lang.Class.getConstructor0(Class.java:2706)
at java.lang.Class.getDeclaredConstructor(Class.java:1985)
at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:122)
... 2 more
{code}
This JIRA is hence filed to track the addition/completion of recovery via ZK.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
