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https://issues.apache.org/jira/browse/HDFS-15990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xuze Yang updated HDFS-15990:
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Priority: Minor (was: Major)
> No need to write to sub_section when serialize SnapshotDiff Section
> -------------------------------------------------------------------
>
> Key: HDFS-15990
> URL: https://issues.apache.org/jira/browse/HDFS-15990
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs
> Affects Versions: 2.10.0
> Reporter: Xuze Yang
> Priority: Minor
>
> In FSImageFormatPBSnapshot.serializeSnapshotDiffSection(), the following code
> exists:
> {code:java}
> if (i % parent.getInodesPerSubSection() == 0) {
> parent.commitSubSection(headers,
> FSImageFormatProtobuf.SectionName.SNAPSHOT_DIFF_SUB);
> }{code}
> It aims to serialize SnapshotDiff information into several sub_sections(i.e.
> additional sub_sections information will be written to FileSummary Section).
> But in FSImageFormatPBSnapshot.loadSnapshotDiffSection(), it treats
> SnapshotDiffSection as a whole, rather than several sub_sections. So it's no
> need to introduce sub_sections here.
>
>
>
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