Myasuka commented on a change in pull request #18222:
URL: https://github.com/apache/flink/pull/18222#discussion_r776135249
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File path:
flink-state-backends/flink-statebackend-rocksdb/src/main/java/org/apache/flink/contrib/streaming/state/restore/RocksDBHandle.java
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@@ -202,12 +202,21 @@ private void restoreInstanceDirectoryFromPath(Path
source) throws IOException {
final String fileName = file.getFileName().toString();
final Path targetFile = instanceRocksDBDirectory.resolve(fileName);
if (fileName.endsWith(SST_FILE_SUFFIX)) {
- // hardlink'ing the immutable sst-files.
- Files.createLink(targetFile, file);
- } else {
- // true copy for all other files.
- Files.copy(file, targetFile,
StandardCopyOption.REPLACE_EXISTING);
+ try {
+ // hardlink'ing the immutable sst-files.
+ Files.createLink(targetFile, file);
+ continue;
+ } catch (IOException ioe) {
+ logger.debug(
+ String.format(
+ "Could not hard link sst file %s. Trying
to copy it over.",
+ fileName),
+ ioe);
+ }
}
+
+ // true copy for all other files and files that could not be hard
linked.
+ Files.copy(file, targetFile, StandardCopyOption.REPLACE_EXISTING);
Review comment:
There exist other files in RocksDB folder without `.sst` suffix.
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