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https://issues.apache.org/jira/browse/HBASE-7690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13564051#comment-13564051
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Matteo Bertozzi commented on HBASE-7690:
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The hfile doesn't know nothing about its content.
Most of the fields are written by the store file.
if we want to keep the separation, only the store file knows the meaning of
each field.
(Also with HBASE-7603 probably only the right StoreFileManager is able to dump
metadata in a human-readable way)
> Improve metadata printing in HFilePrettyPrinter
> -----------------------------------------------
>
> Key: HBASE-7690
> URL: https://issues.apache.org/jira/browse/HBASE-7690
> Project: HBase
> Issue Type: Improvement
> Components: HFile
> Reporter: Nick Dimiduk
> Assignee: Nick Dimiduk
> Priority: Minor
> Attachments: 0001-HBASE-7690-Improve-printing-of-HFile-metadata.patch
>
>
> The pretty printer could do a better job with metadata. For example:
> {noformat}
> ...
> Fileinfo:
> BULKLOAD_SOURCE_TASK = attempt_201301272014_0001_r_000000_0
> BULKLOAD_TIMESTAMP = \x00\x00\x01<\x7FcG\x8E
> DELETE_FAMILY_COUNT = \x00\x00\x00\x00\x00\x00\x00\x00
> EARLIEST_PUT_TS = \x00\x00\x01<\x7Fc&F
> EXCLUDE_FROM_MINOR_COMPACTION = \x00
> KEY_VALUE_VERSION = \x00\x00\x00\x01
> MAJOR_COMPACTION_KEY = \xFF
> MAX_MEMSTORE_TS_KEY = \x00\x00\x00\x00\x00\x00\x00\x00
> TIMERANGE = 1359346869830....1359346869830
> hfile.AVG_KEY_LEN = 19
> hfile.AVG_VALUE_LEN = 2
> hfile.LASTKEY = \x00\x04row9\x01dc2\x00\x00\x01<\x7Fc&F\x04
> ...
> {noformat}
> May of these fields could be cleaned up to print in human-readable values.
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