Anis Elleuch created HADOOP-15267:
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Summary: S3A fails to store my data when multipart size is set ot
5 Mb and SSE-C encryption is enabled
Key: HADOOP-15267
URL: https://issues.apache.org/jira/browse/HADOOP-15267
Project: Hadoop Common
Issue Type: Bug
Components: fs/s3
Affects Versions: 3.1.0
Environment: Hadoop 3.1 Snapshot
Reporter: Anis Elleuch
Attachments: hadoop-fix.patch
With Spark with Hadoop 3.1.0, when I enable SSE-C encryption and set
fs.s3a.multipart.size to 5 Mb, storing data in AWS won't work anymore. For
example, running the following code:
{code}
>>> df1 = spark.read.json('/home/user/people.json')
>>> df1.write.mode("overwrite").json("s3a://testbucket/people.json")
{code}
shows the following exception:
{code:java}
com.amazonaws.services.s3.model.AmazonS3Exception: The multipart upload
initiate requested encryption. Subsequent part requests must include the
appropriate encryption parameters.
{code}
After some investigation, I discovered that hadoop-aws doesn't send SSE-C
headers in Put Object Part as stated in AWS specification:
[https://docs.aws.amazon.com/AmazonS3/latest/API/mpUploadUploadPart.html]
{code:java}
If you requested server-side encryption using a customer-provided encryption
key in your initiate multipart upload request, you must provide identical
encryption information in each part upload using the following headers.
{code}
You can find a patch attached to this issue for a better clarification of the
problem.
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