Regarding configurations: According to the code [1], all config keys starting with "s3", "s3a" and "fs.s3a" are forwarded from the flink-conf.yaml to the Hadoop file systems.Regarding profile-based authentication: Have you tried to set the credentials provider explicitly, by setting "fs.s3a.aws.credentials.provider" ?On Thu, Jan 17, 2019 at 12:57 AM Martin, Nick <[hidden email]> wrote:Does that mean that the full set of fs.s3a.<…> configs in core-site.xml will be picked up from flink-conf.yaml by flink? Or only certain configs involved with authentication?
From: Till Rohrmann [mailto:[hidden email]]
Sent: Wednesday, January 16, 2019 3:43 AM
To: Vinay Patil <[hidden email]>
Cc: Kostas Kloudas <[hidden email]>; Dawid Wysakowicz <[hidden email]>; Taher Koitawala [via Apache Flink User Mailing List archive.] <[hidden email]>; user <[hidden email]>
Subject: EXT :Re: StreamingFileSink cannot get AWS S3 credentials
I haven't configured this myself but I would guess that you need to set the parameters defined here under S3A Authentication methods [1]. If the environment variables don't work, then I would try to set the authentication properties.
Cheers,
Till
On Wed, Jan 16, 2019 at 11:09 AM Vinay Patil <[hidden email]> wrote:
Hi Till,
Can you please let us know the configurations that we need to set for Profile based credential provider in flink-conf.yaml
Exporting AWS_PROFILE property on EMR did not work.
Regards,
Vinay Patil
On Wed, Jan 16, 2019 at 3:05 PM Till Rohrmann <[hidden email]> wrote:
The old BucketingSink was using Hadoop's S3 filesystem directly whereas the new StreamingFileSink uses Flink's own FileSystem which need to be configured via the flink-conf.yaml.
Cheers,
Till
On Wed, Jan 16, 2019 at 10:31 AM Vinay Patil <[hidden email]> wrote:
Hi Till,
We are not providing `fs.s3a.access.key: access_key`, `fs.s3a.secret.key: secret_key` in flink-conf.yaml as we are using Profile based credentials provider. The older BucketingSink code is able to get the credentials and write to S3. We are facing this issue only with StreamingFileSink. We tried adding fs.s3a.impl to core-site.xml when the default configurations were not working.
Regards,
Vinay Patil
On Wed, Jan 16, 2019 at 2:55 PM Till Rohrmann <[hidden email]> wrote:
Hi Vinay,
Flink's file systems are self contained and won't respect the core-site.xml if I'm not mistaken. Instead you have to set the credentials in the flink configuration flink-conf.yaml via `fs.s3a.access.key: access_key`, `fs.s3a.secret.key: secret_key` and so on [1]. Have you tried this out?
This has been fixed with Flink 1.6.2 and 1.7.0 [2].
[1] https://ci.apache.org/projects/flink/flink-docs-stable/ops/filesystems.html#built-in-file-systems
Cheers,
Till
On Wed, Jan 16, 2019 at 10:10 AM Kostas Kloudas <[hidden email]> wrote:
Hi Taher,
So you are using the same configuration files and everything and the only thing you change is the "s3://" to "s3a://" and the sink cannot find the credentials?
Could you please provide the logs of the Task Managers?
Cheers,
Kostas
On Wed, Jan 16, 2019 at 9:13 AM Dawid Wysakowicz <[hidden email]> wrote:
Forgot to cc ;)
On 16/01/2019 08:51, Vinay Patil wrote:
Hi,
Can someone please help on this issue. We have even tried to set fs.s3a.impl in core-site.xml, still its not working.
Regards,
Vinay Patil
On Fri, Jan 11, 2019 at 5:03 PM Taher Koitawala [via Apache Flink User Mailing List archive.] <[hidden email]> wrote:
Hi All,
We have implemented S3 sink in the following way:
StreamingFileSink sink= StreamingFileSink.forBulkFormat(new Path("s3a://mybucket/myfolder/output/"), ParquetAvroWriters.forGenericRecord(schema))
.withBucketCheckInterval(50l).withBucketAssigner(new CustomBucketAssigner()).build();
The problem we are facing is that StreamingFileSink is initializing S3AFileSystem class to write to s3 and is not able to find the s3 credentials to write data, However other flink application on the same cluster use "s3://" paths are able to write data to the same s3 bucket and folders, we are only facing this issue with StreamingFileSink.
Regards,
Taher Koitawala
GS Lab Pune
+91 8407979163
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