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https://issues.apache.org/jira/browse/HDFS-11026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ewan Higgs updated HDFS-11026:
------------------------------
Attachment: blocktokenidentifier-protobuf.patch
Attaching a patch that converts the {{BlockTokenIdentifier}} to use Protobuf.
NB: This uses {{optional}} values for all the items being written to the token
secret since that's the behaviour of the previous version that used
{{WritableUtils.writeString}}. I think it would be better to force the Strings
to be non-null when writing but I chose to do it this way so it's like-for-like
with the previous version.
> Convert BlockTokenIdentifier to use Protobuf
> --------------------------------------------
>
> Key: HDFS-11026
> URL: https://issues.apache.org/jira/browse/HDFS-11026
> Project: Hadoop HDFS
> Issue Type: Task
> Components: hdfs, hdfs-client
> Affects Versions: 2.9.0, 3.0.0-alpha1
> Reporter: Ewan Higgs
> Fix For: 3.0.0-alpha2
>
> Attachments: blocktokenidentifier-protobuf.patch
>
>
> {{BlockTokenIdentifier}} currently uses a {{DataInput}}/{{DataOutput}}
> (basically a {{byte[]}}) and manual serialization to get data into and out of
> the encrypted buffer (in {{BlockKeyProto}}). Other TokenIdentifiers (e.g.
> {{ContainerTokenIdentifier}}, {{AMRMTokenIdentifier}}) use Protobuf. The
> {{BlockTokenIdenfitier}} should use Protobuf as well so it can be expanded
> more easily and will be consistent with the rest of the system.
> NB: Release of this will require a version update since 2.8.x won't be able
> to decipher {{BlockKeyProto.keyBytes}} from 2.8.y.
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