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https://issues.apache.org/jira/browse/YARN-9247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17281130#comment-17281130
]
ZheYuan commented on YARN-9247:
-------------------------------
Thank this issue!!
Delete directory in configure file *yarn.nodemanager.local-dirs*.
EXAMPLE: In our system this directory is
"/var/lib/hadoop-yarn/yarn-nm-recovery".
> NM fails to start when downgrading from 3.x to 2.7
> --------------------------------------------------
>
> Key: YARN-9247
> URL: https://issues.apache.org/jira/browse/YARN-9247
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn
> Affects Versions: 2.7.2
> Reporter: Jiandan Yang
> Assignee: Jiandan Yang
> Priority: Major
> Attachments: YARN-9247.branch-2.7.2.001.patch
>
>
> NM will throws *java.io.IOException: Unexpected container state key* when
> downgrading from 3.1.3 to 2.7.2 duo to *starttime* added by hadoop3.x is not
> known by old version.
> {code:java}
> 2019-01-28 12:12:05,227 FATAL
> org.apache.hadoop.yarn.server.nodemanager.NodeManager: Error starting
> NodeManager
> org.apache.hadoop.service.ServiceStateException: java.io.IOException:
> Unexpected container state key:
> ContainerManager/containers/container_e42_1548641704310_0002_01_000001/starttime
> at
> org.apache.hadoop.service.ServiceStateException.convert(ServiceStateException.java:59)
> at
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:172)
> at
> org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107)
> at
> org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceInit(NodeManager.java:263)
> at
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
> at
> org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartNodeManager(NodeManager.java:536)
> at
> org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:584)
> Caused by: java.io.IOException: Unexpected container state key:
> ContainerManager/containers/container_e42_1548641704310_0002_01_000001/starttime
> at
> org.apache.hadoop.yarn.server.nodemanager.recovery.NMLeveldbStateStoreService.loadContainerState(NMLeveldbStateStoreService.java:242)
> at
> org.apache.hadoop.yarn.server.nodemanager.recovery.NMLeveldbStateStoreService.loadContainersState(NMLeveldbStateStoreService.java:178)
> at
> org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl.recover(ContainerManagerImpl.java:290)
> at
> org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl.serviceInit(ContainerManagerImpl.java:274)
> at
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
> ... 5 more
> {code}
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