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https://issues.apache.org/jira/browse/HDFS-14384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16814251#comment-16814251
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Surendra Singh Lilhore commented on HDFS-14384:
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Thanks [~daryn] for review..
{quote} # Why go through the work of inserting the new blocks in the old block
list when it's going to be thrown away?
# Why recreate locatedBlocks from newBlocks instead of just assigning
newBlocks to locatedBlocks?{quote}
I just want to update the *lastLocatedBlock* and don't want to change the old
fetched block list.
If you feel it is not required, I can assign direct newBlocks to locatedBlocks.
> When lastLocatedBlock token expire, it will take 1~3s second to refetch it.
> ---------------------------------------------------------------------------
>
> Key: HDFS-14384
> URL: https://issues.apache.org/jira/browse/HDFS-14384
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs-client
> Affects Versions: 2.7.2
> Reporter: Surendra Singh Lilhore
> Assignee: Surendra Singh Lilhore
> Priority: Major
> Attachments: HDFS-14384.001.patch
>
>
> Scenario :
> 1. Write file with one block which is in-progress.
> 2. Open input stream and close the output stream.
> 3. Wait for block token expiration and read the data.
> 4. Last block read take 1~3 sec to read it.
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