set the region of dynamoDB explicitly

[michi88]

as decribed here: #2

It seems we need to set the region for the dynamo db client explicitly when we're using eu-west-1 for example.

I'm no Java expert so if you want to do this differently or you think this should not be needed please let me know how it should work otherwise.

Thanks!

[michi88]

After upgrading the Athena driver to AthenaJDBC41-1.1.0 the following error was fixed:

An error occurred while adding partitions.: java.lang.IllegalStateException
java.lang.IllegalStateException: An error occurred while adding partitions.
at com.amazonaws.services.lambda.model.TableService.addPartitions(TableService.java:58)
at com.amazonaws.services.lambda.CreateAthenaPartitionsBasedOnS3EventWithDDB.handleRequest(CreateAthenaPartitionsBasedOnS3EventWithDDB.java:71)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
Caused by: java.sql.SQLException: Failed to run query
at com.amazonaws.athena.jdbc.AthenaStatement.execute(AthenaStatement.java:215)
at com.amazonaws.services.lambda.model.TableService.addPartitions(TableService.java:54)
... 5 more
Caused by: com.amazonaws.athena.jdbc.shaded.com.amazonaws.services.athena.model.AmazonAthenaException: No Such Method (Service: AmazonAthena; Status Code: 400; Error Code: UnknownOperationException; Request ID: 68b9ebe4-dd70-11e7-9a8f-85e1113934c9)

This is the query that the function is executing:

ALTER TABLE sampledb.cf_logs ADD IF NOT EXISTS PARTITION (Year='2017',Month='12',Day='10',Hour='06') LOCATION 's3://bucket/2017/12/10/06/'