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https://issues.apache.org/jira/browse/HADOOP-17596?focusedWorklogId=597481&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-597481
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ASF GitHub Bot logged work on HADOOP-17596:
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Author: ASF GitHub Bot
Created on: 17/May/21 07:03
Start Date: 17/May/21 07:03
Worklog Time Spent: 10m
Work Description: anoopsjohn commented on pull request #2795:
URL: https://github.com/apache/hadoop/pull/2795#issuecomment-842063424
Thanks @vinaysbadami . Ya speculative part I agree. Points #2 and #3 are
very important. You can think whether can include this in abfs.md even. Will be
good.
>This config is per inputstream and not global across streams.
No I dont think so. This config is cluster level and all input streams
opened in this will use this value.
Now we have openFile(Path path) API usage in AzureBlobFileSystem. This will
allow passing per input stream options. But this config support is not added
yet.
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Issue Time Tracking
-------------------
Worklog Id: (was: 597481)
Time Spent: 1h 50m (was: 1h 40m)
> ABFS: Change default Readahead Queue Depth from num(processors) to const
> ------------------------------------------------------------------------
>
> Key: HADOOP-17596
> URL: https://issues.apache.org/jira/browse/HADOOP-17596
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/azure
> Affects Versions: 3.3.1
> Reporter: Sumangala Patki
> Assignee: Sumangala Patki
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 50m
> Remaining Estimate: 0h
>
> The default value of readahead queue depth is currently set to the number of
> available processors. However, this can result in one inputstream instance
> consuming more processor time. To ensure equal thread allocation during read
> for all inputstreams created in a session, we change the default readahead
> queue depth to a constant (2).
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