Clear the stat cache of the target when renaming the file.

PiperOrigin-RevId: 195337886

1 files changed, 72 insertions, 0 deletions

diff --git a/tensorflow/core/platform/cloud/gcs_file_system_test.cc b/tensorflow/core/platform/cloud/gcs_file_system_test.cc
index c639299954..28be13869b 100644
--- a/tensorflow/core/platform/cloud/gcs_file_system_test.cc
+++ b/tensorflow/core/platform/cloud/gcs_file_system_test.cc
@@ -1902,6 +1902,78 @@ TEST(GcsFileSystemTest, RenameFile_Object) {
   EXPECT_EQ("fedcba98", result);
 }
 
+TEST(GcsFileSystemTest, RenameFile_Object_FlushTargetStatCache) {
+  std::vector<HttpRequest*> requests(
+      {// Stat the target file.
+       new FakeHttpRequest(
+           "Uri: https://www.googleapis.com/storage/v1/b/bucket/o/"
+           "path%2Fdst.txt?fields=size%2Cupdated\n"
+           "Auth Token: fake_token\n"
+           "Timeouts: 5 1 10\n",
+           strings::StrCat("{\"size\": \"1000\","
+                           "\"updated\": \"2016-04-29T23:15:24.896Z\"}")),
+       // IsDirectory is checking whether there are children objects.
+       new FakeHttpRequest(
+           "Uri: https://www.googleapis.com/storage/v1/b/bucket/o?"
+           "fields=items%2Fname%2CnextPageToken&prefix=path%2Fsrc.txt%2F"
+           "&maxResults=1\n"
+           "Auth Token: fake_token\n"
+           "Timeouts: 5 1 10\n",
+           "{}"),
+       // IsDirectory is checking if the path exists as an object.
+       new FakeHttpRequest(
+           "Uri: https://www.googleapis.com/storage/v1/b/bucket/o/"
+           "path%2Fsrc.txt?fields=size%2Cupdated\n"
+           "Auth Token: fake_token\n"
+           "Timeouts: 5 1 10\n",
+           strings::StrCat("{\"size\": \"1010\","
+                           "\"updated\": \"2016-04-29T23:15:24.896Z\"}")),
+       // Copying to the new location.
+       new FakeHttpRequest(
+           "Uri: https://www.googleapis.com/storage/v1/b/bucket/o/"
+           "path%2Fsrc.txt/rewriteTo/b/bucket/o/path%2Fdst.txt\n"
+           "Auth Token: fake_token\n"
+           "Post: yes\n"
+           "Timeouts: 5 1 10\n",
+           "{\"done\": true}"),
+       // Deleting the original file.
+       new FakeHttpRequest(
+           "Uri: https://www.googleapis.com/storage/v1/b/bucket/o/"
+           "path%2Fsrc.txt\n"
+           "Auth Token: fake_token\n"
+           "Timeouts: 5 1 10\n"
+           "Delete: yes\n",
+           ""),
+       new FakeHttpRequest(
+           "Uri: https://www.googleapis.com/storage/v1/b/bucket/o/"
+           "path%2Fdst.txt?fields=size%2Cupdated\n"
+           "Auth Token: fake_token\n"
+           "Timeouts: 5 1 10\n",
+           strings::StrCat("{\"size\": \"1010\","
+                           "\"updated\": \"2016-04-29T23:15:24.896Z\"}"))});
+  GcsFileSystem fs(
+      std::unique_ptr<AuthProvider>(new FakeAuthProvider),
+      std::unique_ptr<HttpRequest::Factory>(
+          new FakeHttpRequestFactory(&requests)),
+      0 /* block size */, 0 /* max bytes */, 0 /* max staleness */,
+      3600 /* stat cache max age */, 0 /* stat cache max entries */,
+      0 /* matching paths cache max age */,
+      0 /* matching paths cache max entries */, 0 /* initial retry delay*/,
+      kTestTimeoutConfig, nullptr /* gcs additional header */);
+  // Do an initial stat of the destination file to load their contents into the
+  // stat cache.
+  FileStatistics stat_before_renaming;
+  TF_EXPECT_OK(fs.Stat("gs://bucket/path/dst.txt", &stat_before_renaming));
+  EXPECT_EQ(1000, stat_before_renaming.length);
+
+  TF_EXPECT_OK(
+      fs.RenameFile("gs://bucket/path/src.txt", "gs://bucket/path/dst.txt"));
+
+  FileStatistics stat_after_renaming;
+  TF_EXPECT_OK(fs.Stat("gs://bucket/path/dst.txt", &stat_after_renaming));
+  EXPECT_EQ(1010, stat_after_renaming.length);
+}
+
 /// Tests the scenario when deletion returns a failure, but actually succeeds.
 TEST(GcsFileSystemTest, RenameFile_Object_DeletionRetried) {
   std::vector<HttpRequest*> requests(