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https://issues.apache.org/jira/browse/HADOOP-19448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17924180#comment-17924180
]
ASF GitHub Bot commented on HADOOP-19448:
-----------------------------------------
anmolanmol1234 commented on code in PR #7353:
URL: https://github.com/apache/hadoop/pull/7353#discussion_r1943358608
##########
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsBlobClient.java:
##########
@@ -555,58 +545,254 @@ public AbfsRestOperation createPath(final String path,
final AbfsRestOperation op = getAbfsRestOperation(
AbfsRestOperationType.PutBlob,
HTTP_METHOD_PUT, url, requestHeaders);
+ op.execute(tracingContext);
+ return op;
+ }
+
+ /**
+ * Checks if the specified path is a directory by listing its contents.
+ *
+ * @param path the path to check.
+ * @param tracingContext the tracing context for the service call.
+ * @return true if the path is a directory and contains entries, false
otherwise.
+ * @throws AzureBlobFileSystemException if the rest operation fails.
+ */
+ private boolean checkDirectoryByList(String path,
+ TracingContext tracingContext)
+ throws AzureBlobFileSystemException {
+ AbfsRestOperation listPathOp = listPath(path, false, 1, null,
+ tracingContext, false);
+ AbfsHttpOperation listPathResult = listPathOp.getResult();
+ if (listPathResult != null) {
+ // Determine if the path is a directory by checking if the list result
schema has any paths
+ return !listPathResult.getListResultSchema().paths().isEmpty();
+ }
+ return false;
+ }
+
+ /**
+ * Checks if the specified path exists as a directory.
+ *
+ * @param path the path of the directory to check.
+ * @param tracingContext the tracing context for the service call.
+ * @return true if the directory exists, false otherwise.
+ * @throws AzureBlobFileSystemException if the rest operation fails.
+ */
+ private boolean checkForDirectoryExistence(String path,
Review Comment:
taken
> ABFS: [FnsOverBlob][Optimizations] Reduce Network Calls In Create and Mkdir
> Flow
> --------------------------------------------------------------------------------
>
> Key: HADOOP-19448
> URL: https://issues.apache.org/jira/browse/HADOOP-19448
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/azure
> Affects Versions: 3.4.2
> Reporter: Anuj Modi
> Assignee: Anmol Asrani
> Priority: Major
> Labels: pull-request-available
>
> Implementing Create and Mkdir file system APIs for FNS(HNS Disabled) accounts
> on Blob Endpoint involves a lot of checks and marker file creations to handle
> implicit explicit cases of paths involved in these APIs.
> This Jira proposes a few optimizations to reduce the network calls wherever
> possible and in case where create/mkdir is bound to fail, it should fail
> faster before doing any post checks,
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