are not supported on erasure coded files due to substantial technical
challenges.
-* `append()` and `truncate()` on an erasure coded file will throw `IOException`.
+* `append()` and `truncate()` on an erasure coded file will throw `IOException`. However, with `NEW_BLOCK` flag enabled, append to a closed striped file is supported.
* `concat()` will throw `IOException` if files are mixed with different erasure
coding policies or with replicated files.
* `setReplication()` is no-op on erasure coded files.
Ashutosh Gupta