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https://issues.apache.org/jira/browse/HBASE-25641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17298533#comment-17298533
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Anoop Sam John commented on HBASE-25641:
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Seems the FileInfo will not have all the info what this page displays. Like
info abt value sizes and even key length different percentile values and we end
up reading entire file !
HFilePrettyPrinter#processFile opens the HFile reader with CacheConfig.DISABLED
means, even if this file is present in cache, we will not use that cache at
all. It is not just this read will avoid caching blocks to BC if not found.
The reads wont make use of cache at all. May be we need to revisit that also
in HFilePrettyPrinter? It can make use of the cache if data is present (I know
its not completely related to this jira. still asking. Need another jira)
We might have to add more details about key, value, row lengths to FileInfo
while writing HFile? Display only this FileInfo in UI. (If older files dont
have all these info, lets not show those)?
> Improve storeFile.jsp performance on really large files
> -------------------------------------------------------
>
> Key: HBASE-25641
> URL: https://issues.apache.org/jira/browse/HBASE-25641
> Project: HBase
> Issue Type: Improvement
> Components: regionserver, UI
> Affects Versions: 2.3.0
> Reporter: Nick Dimiduk
> Priority: Minor
>
> Since HBASE-7171, we have a nice UI for clicking down into the details of an
> hfile on a regions server. When the store file is really large, the
> performance of this page is quite bad. It can take several minutes to
> summarize a 30-50gb hfile. We can do better.
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