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From "Chris Trezzo (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-2944) SCMStore/InMemorySCMStore is not currently compatible with ReflectionUtils#newInstance
Date Wed, 10 Dec 2014 00:56:15 GMT
Chris Trezzo created YARN-2944:
----------------------------------

             Summary: SCMStore/InMemorySCMStore is not currently compatible with ReflectionUtils#newInstance
                 Key: YARN-2944
                 URL: https://issues.apache.org/jira/browse/YARN-2944
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Chris Trezzo
            Assignee: Chris Trezzo
            Priority: Minor


Currently the Shared Cache Manager uses ReflectionUtils#newInstance to create the SCMStore
service. Unfortunately the SCMStore class does not have a 0-argument constructor.

On startup, the SCM fails with the following:
{noformat}
14/12/09 16:10:53 INFO service.AbstractService: Service SharedCacheManager failed in state
INITED; cause: java.lang.RuntimeException: java.lang.NoSuchMethodException: org.apache.hadoop.yarn.server.sharedcachemanager.store.InMemorySCMStore.<init>()
java.lang.RuntimeException: java.lang.NoSuchMethodException: org.apache.hadoop.yarn.server.sharedcachemanager.store.InMemorySCMStore.<init>()
        at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:131)
        at org.apache.hadoop.yarn.server.sharedcachemanager.SharedCacheManager.createSCMStoreService(SharedCacheManager.java:103)
        at org.apache.hadoop.yarn.server.sharedcachemanager.SharedCacheManager.serviceInit(SharedCacheManager.java:65)
        at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
        at org.apache.hadoop.yarn.server.sharedcachemanager.SharedCacheManager.main(SharedCacheManager.java:156)
Caused by: java.lang.NoSuchMethodException: org.apache.hadoop.yarn.server.sharedcachemanager.store.InMemorySCMStore.<init>()
        at java.lang.Class.getConstructor0(Class.java:2763)
        at java.lang.Class.getDeclaredConstructor(Class.java:2021)
        at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:125)
        ... 4 more
14/12/09 16:10:53 FATAL sharedcachemanager.SharedCacheManager: Error starting SharedCacheManager
java.lang.RuntimeException: java.lang.NoSuchMethodException: org.apache.hadoop.yarn.server.sharedcachemanager.store.InMemorySCMStore.<init>()
        at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:131)
        at org.apache.hadoop.yarn.server.sharedcachemanager.SharedCacheManager.createSCMStoreService(SharedCacheManager.java:103)
        at org.apache.hadoop.yarn.server.sharedcachemanager.SharedCacheManager.serviceInit(SharedCacheManager.java:65)
        at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
        at org.apache.hadoop.yarn.server.sharedcachemanager.SharedCacheManager.main(SharedCacheManager.java:156)
Caused by: java.lang.NoSuchMethodException: org.apache.hadoop.yarn.server.sharedcachemanager.store.InMemorySCMStore.<init>()
        at java.lang.Class.getConstructor0(Class.java:2763)
        at java.lang.Class.getDeclaredConstructor(Class.java:2021)
        at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:125)
        ... 4 more
{noformat}

This JIRA is to add a 0-argument constructor to SCMStore.



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