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https://issues.apache.org/jira/browse/HDFS-13080?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16344644#comment-16344644
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Elek, Marton commented on HDFS-13080:
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Fix me If I am wrong, but I think even with the optional flag an NPE could
occur as null shouldn't be set to the protobuf field.
I propose to fix the ContainerManagerImpl.java as well.
I have a local patch for that, I am uploading it to here, to explain what I
think, but feel free to ignore if you don't agree.
> Ozone: Make finalhash in ContainerInfo of
> StorageContainerDatanodeProtocol.proto optional
> -----------------------------------------------------------------------------------------
>
> Key: HDFS-13080
> URL: https://issues.apache.org/jira/browse/HDFS-13080
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Reporter: Nanda kumar
> Assignee: Nanda kumar
> Priority: Major
> Attachments: HDFS-13080-HDFS-7240.000.patch,
> HDFS-13080-HDFS-7240.001.patch
>
>
> ContainerInfo in StorageContainerDatanodeProtocol.proto has a required field,
> {{finalhash}} which will be null for an open container, this has to be made
> as an optional field.
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