billierinaldi commented on a change in pull request #1925:
URL: https://github.com/apache/hadoop/pull/1925#discussion_r595255693
##########
File path:
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/AzureBlobFileSystemStore.java
##########
@@ -702,15 +735,72 @@ public OutputStream openFileForWrite(final Path path,
final FileSystem.Statistic
isAppendBlob = true;
}
+ SelfRenewingLease lease = maybeCreateLease(relativePath);
+
return new AbfsOutputStream(
client,
statistics,
relativePath,
offset,
- populateAbfsOutputStreamContext(isAppendBlob));
+ populateAbfsOutputStreamContext(isAppendBlob, lease));
}
}
+ /**
+ * Acquire a lease on an ABFS file for a specified duration. This requires
the file to exist.
+ *
+ * @param path file name
+ * @param duration time lease will be held before expiring
+ * @return the acquired lease ID
+ * @throws AzureBlobFileSystemException on any exception while acquiring the
lease
+ */
+ public String acquireLease(final Path path, final int duration) throws
AzureBlobFileSystemException {
+ LOG.debug("lease path: {}", path);
+
+ final AbfsRestOperation op =
+ client.acquireLease(getRelativePath(path), duration);
+
+ return
op.getResult().getResponseHeader(HttpHeaderConfigurations.X_MS_LEASE_ID);
+ }
+
+ /**
Review comment:
I'm not sure what you mean. Do you mean that we shouldn't have an
acquireLease method in the store because leases will be acquired automatically?
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