saxenapranav commented on code in PR #6699:
URL: https://github.com/apache/hadoop/pull/6699#discussion_r1569994880
##########
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/constants/ConfigurationKeys.java:
##########
@@ -309,5 +309,19 @@ public static String accountProperty(String property,
String account) {
* @see FileSystem#openFile(org.apache.hadoop.fs.Path)
*/
public static final String FS_AZURE_BUFFERED_PREAD_DISABLE =
"fs.azure.buffered.pread.disable";
+
+ /**
+ * Disable the call of HEAD call for opening a inputStream. ReadPath API of
server
+ * would give the contentLength and eTag which would be used in subsequent
calls
+ * for if-match headers.
+ */
+ public static final String FS_AZURE_HEAD_CALL_OPTIMIZATION_INPUT_STREAM =
"fs.azure.head.call.optimization.input.stream";
+
+ /**
+ * Enable prefetch on the first read to {@link
org.apache.hadoop.fs.azurebfs.services.AbfsInputStream}.
+ * If disabled, first call would not trigger prefetch. Prefetch would be
switched on
+ * after first read call.
+ */
+ public static final String FS_AZURE_PREFETCH_FIRST_READ_CALL =
"fs.azure.prefetch.first.read.call";
Review Comment:
taken
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