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Posted to yarn-issues@hadoop.apache.org by "Suma Shivaprasad (JIRA)" <ji...@apache.org> on 2018/05/15 21:11:00 UTC
[jira] [Updated] (YARN-8300) Fix NPE in
DefaultUpgradeComponentsFinder
[ https://issues.apache.org/jira/browse/YARN-8300?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Suma Shivaprasad updated YARN-8300:
-----------------------------------
Attachment: YARN-8300.1.patch
> Fix NPE in DefaultUpgradeComponentsFinder
> ------------------------------------------
>
> Key: YARN-8300
> URL: https://issues.apache.org/jira/browse/YARN-8300
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn
> Reporter: Suma Shivaprasad
> Assignee: Suma Shivaprasad
> Priority: Major
> Attachments: YARN-8300.1.patch
>
>
> In current upgrades for Yarn native services, we do not support addition/deletion of compoents during upgrade. On trying to upgrade with the same number of components in target spec as the current service spec but with the one of the components having a new target spec and name, see the following NPE in service AM logs
> {noformat}
> 2018-05-15 00:10:41,489 [IPC Server handler 0 on 37488] ERROR service.ClientAMService - Error while trying to upgrade service {}
> java.lang.NullPointerException
> at org.apache.hadoop.yarn.service.UpgradeComponentsFinder$DefaultUpgradeComponentsFinder.lambda$findTargetComponentSpecs$0(UpgradeComponentsFinder.java:103)
> at java.util.ArrayList.forEach(ArrayList.java:1257)
> at org.apache.hadoop.yarn.service.UpgradeComponentsFinder$DefaultUpgradeComponentsFinder.findTargetComponentSpecs(UpgradeComponentsFinder.java:100)
> at org.apache.hadoop.yarn.service.ServiceManager.processUpgradeRequest(ServiceManager.java:259)
> at org.apache.hadoop.yarn.service.ClientAMService.upgrade(ClientAMService.java:163)
> at org.apache.hadoop.yarn.service.impl.pb.service.ClientAMProtocolPBServiceImpl.upgradeService(ClientAMProtocolPBServiceImpl.java:81)
> at org.apache.hadoop.yarn.proto.ClientAMProtocol$ClientAMProtocolService$2.callBlockingMethod(ClientAMProtocol.java:5972)
> at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:523)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:991)
> at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:872)
> at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:818)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1682)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2678)
> {noformat}
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