anujmodi2021 opened a new pull request, #5881:
URL: https://github.com/apache/hadoop/pull/5881

   ### Description of PR
   https://issues.apache.org/jira/browse/HADOOP-18759
   Today when a request fails with connection timeout, it falls back into the 
loop for exponential retry. Unlike Azure Storage, there are no guarantees of 
success on exponentially retried request or recommendations for ideal retry 
policies for Azure network or any other general failures. Faster failure and 
retry might be more beneficial for such generic connection timeout failures. 
   
   This PR introduces a new Static Retry Policy which will currently be used 
only for Connection Timeout failures. It means all the requests failing with 
Connection Timeout errors will be retried after a constant retry(sleep) 
interval independent of how many times that request has failed. Max Retry Count 
check will still be in place.
   
   Following Configurations will be introduced in the change:
   1. "fs.azure.static.retry.for.connection.timeout.enabled" - default: true, 
true: static retry will be used for CT, false: Exponential retry will be used.
   2. "fs.azure.static.retry.interval" - default: 1000ms.
   
   ### How was this patch tested?
   Test cases added and existing test cases modified.
   
   ### For code changes:
   
   - [ ] Does the title or this PR starts with the corresponding JIRA issue id 
(e.g. 'HADOOP-17799. Your PR title ...')?
   - [ ] Object storage: have the integration tests been executed and the 
endpoint declared according to the connector-specific documentation?
   - [ ] If adding new dependencies to the code, are these dependencies 
licensed in a way that is compatible for inclusion under [ASF 
2.0](http://www.apache.org/legal/resolved.html#category-a)?
   - [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`, 
`NOTICE-binary` files?
   
   


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