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https://issues.apache.org/jira/browse/HBASE-7690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13564780#comment-13564780
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Matteo Bertozzi commented on HBASE-7690:
----------------------------------------
I think the idea behind the StoreFileManager is that every StoreFileManager
(e.g. the levelled one) knows more about the hfiles and knows more about the
metadata (e.g. fields related to level compaction). but you've to ask Sergey
what he has in mind.
> 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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