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https://issues.apache.org/jira/browse/HDFS-6673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14292424#comment-14292424
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Colin Patrick McCabe commented on HDFS-6673:
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bq. The whole point of this tool is to run the oiv on machines that do not have
the luxury of abundant memory. Can you clarify what point you are trying to
make?
I think that the point that Andrew is trying to make is that this tool will run
quickly on machines with more memory, while still being possible to use on
machines with less memory.
bq. Can you clarify what the greater functionality are? The Delimiter only
outputs mtime/atime and other information available from legacy fsimage.
Andrew already commented that "HDFS-6293 doesn't include metadata newer than
the old format." As we add more features over time, printing data from the
legacy fsimage will become less and less useful. Eventually we will probably
want to drop support entirely, perhaps in Hadoop 3.0. There is a maintenance
burden associated with maintaining two image formats.
> Add Delimited format supports for PB OIV tool
> ---------------------------------------------
>
> Key: HDFS-6673
> URL: https://issues.apache.org/jira/browse/HDFS-6673
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: 2.4.0
> Reporter: Lei (Eddy) Xu
> Assignee: Lei (Eddy) Xu
> Priority: Minor
> Attachments: HDFS-6673.000.patch, HDFS-6673.001.patch,
> HDFS-6673.002.patch, HDFS-6673.003.patch, HDFS-6673.004.patch,
> HDFS-6673.005.patch, HDFS-6673.006.patch
>
>
> The new oiv tool, which is designed for Protobuf fsimage, lacks a few
> features supported in the old {{oiv}} tool.
> This task adds supports of _Delimited_ processor to the oiv tool.
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