Anoop Sam John created HADOOP-17038:
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Summary: Support positional read in AbfsInputStream
Key: HADOOP-17038
URL: https://issues.apache.org/jira/browse/HADOOP-17038
Project: Hadoop Common
Issue Type: Sub-task
Reporter: Anoop Sam John
Assignee: Anoop Sam John
Right now it will do a seek to the position , read and then seek back to the
old position. (As per the impl in the super class)
In HBase kind of workloads we rely mostly on short preads. (like 64 KB size by
default). So would be ideal to support a pure pos read API which will not even
keep the data in a buffer but will only read the required data as what is asked
for by the caller. (Not reading ahead more data as per the read size config)
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