snvijaya commented on a change in pull request #2021:
URL: https://github.com/apache/hadoop/pull/2021#discussion_r425626178
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File path: hadoop-tools/hadoop-azure/src/site/markdown/abfs.md
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@@ -691,6 +691,18 @@ Config `fs.azure.account.hns.enabled` provides an option
to specify whether
Config `fs.azure.enable.check.access` needs to be set true to enable
the AzureBlobFileSystem.access().
+### <a name="idempotency"></a> Operation Idempotency
+
+Requests failing due to server timeouts and network failures will be retried.
+PUT/POST operations are idempotent and need no specific handling
+except for Rename and Delete operations.
+
+Rename idempotency checks are made by ensuring the LastModifiedTime on
destination
+is recent if source path is found to be non-existent on retry.
+
+Delete is considered to be idempotent by default if the target does not exist
on
Review comment:
I guess the oflline conversation on what Default means clarifies.
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