Sumangala Patki created HADOOP-17596:
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Summary: 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
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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