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https://issues.apache.org/jira/browse/HBASE-14307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14715180#comment-14715180
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Anoop Sam John commented on HBASE-14307:
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In many places we use IOUtils.readFully API which in turn will use loop. I dont
think there is some reason why we should not use that here as well.
> Incorrect use of positional read api in HFileBlock
> --------------------------------------------------
>
> Key: HBASE-14307
> URL: https://issues.apache.org/jira/browse/HBASE-14307
> Project: HBase
> Issue Type: Bug
> Reporter: Shradha Revankar
> Priority: Minor
>
> Considering that {{read()}} is not guaranteed to read all bytes,
> I'm interested to understand this particular piece of code and why is partial
> read treated as an error :
> https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileBlock.java#L1446-L1450
> Particularly, if hbase were to use a different filesystem, say
> WebhdfsFileSystem, this would not work, please also see
> https://issues.apache.org/jira/browse/HDFS-8943 for discussion around this.
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