Steve Loughran created HADOOP-13637:
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Summary: improve setting of max connections in AWS client
Key: HADOOP-13637
URL: https://issues.apache.org/jira/browse/HADOOP-13637
Project: Hadoop Common
Issue Type: Sub-task
Components: fs/s3
Affects Versions: 2.8.0
Reporter: Steve Loughran
Priority: Minor
things can go badly wrong if the S3A FS creates a thread pool for IO > than the
number of pooled AWS http connections (set by property MAXIMUM_CONNECTIONS);
you also need some for any other IO requests coming in.
The max connections property is currently independent of thread pool size, and
has a default value of 1.
this is why there is a troubleshooting section in the docs showing the stack
trace and instructions to fix".
Better: have a dynamic minimum like thread pool size + n, for a value of n to
be chosen.
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