danielcweeks commented on a change in pull request #1767:
URL: https://github.com/apache/iceberg/pull/1767#discussion_r523189006
##########
File path: aws/src/main/java/org/apache/iceberg/aws/s3/S3OutputStream.java
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@@ -87,18 +168,105 @@ public void close() throws IOException {
super.close();
closed = true;
+ currentStagingFile = null;
try {
stream.close();
- s3.putObject(
-
PutObjectRequest.builder().bucket(location.bucket()).key(location.key()).build(),
- RequestBody.fromFile(stagingFile));
+ completeUploads();
} finally {
- if (!stagingFile.delete()) {
- LOG.warn("Could not delete temporary file: {}", stagingFile);
+ stagingFiles.forEach(f -> {
+ if (f.exists() && !f.delete()) {
+ LOG.warn("Could not delete temporary file: {}", f);
+ }
+ });
+ }
+ }
+
+ private void initializeMultiPartUpload() {
+ multipartUploadId =
s3.createMultipartUpload(CreateMultipartUploadRequest.builder()
+ .bucket(location.bucket()).key(location.key()).build()).uploadId();
+ }
+
+ private void uploadParts() {
+ // exit if multipart has not been initiated
+ if (multipartUploadId == null) {
+ return;
+ }
+
+ stagingFiles.stream()
+ // do not upload the file currently being written
+ .filter(f -> currentStagingFile == null ||
!currentStagingFile.equals(f))
+ // do not upload any files that have already been processed
+ .filter(Predicates.not(multiPartMap::containsKey))
+ .forEach(f -> {
+ UploadPartRequest uploadRequest = UploadPartRequest.builder()
+ .bucket(location.bucket())
+ .key(location.key())
+ .uploadId(multipartUploadId)
+ .partNumber(stagingFiles.indexOf(f) + 1)
+ .contentLength(f.length())
+ .build();
+
+ CompletableFuture<CompletedPart> future =
CompletableFuture.supplyAsync(
Review comment:
That's a really good question. Since it's the entire client that
changes (right?) this would also require changes in the input stream. Someone
on the original thread commented they had problems with the async
implementation, so I had steered away from it.
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