Batch job submissions timing out

[dpwrussell]

Submissions of batch jobs have been exceeding the 6 second default lambda limit.

[INFO]	2018-09-05T01:17:24.391Z	Found credentials in environment variables.
[INFO]	2018-09-05T01:17:24.638Z	Starting new HTTPS connection (1): ssm.us-east-1.amazonaws.com
START RequestId: e50b2988-6e16-494c-af8e-6e50355d493d Version: $LATEST
Received event: {
"import_uuid": "848e5eea-35e9-412d-adec-a0c023579e96",
"files": [
"ashlar_examples/BP40.ome.tif"
],
"reader": "loci.formats.in.OMETiffReader",
"reader_software": "Bio-Formats",
"reader_version": "(unknown version)",
"fileset_uuid": "e7a6dbc8-a457-4d28-8b3b-65beed085716"
}
Parameters:{
"dir": "848e5eea-35e9-412d-adec-a0c023579e96",
"file": "ashlar_examples/BP40.ome.tif",
"reader": "loci.formats.in.OMETiffReader",
"reader_software": "Bio-Formats",
"reader_version": "(unknown version)",
"fileset_uuid": "e7a6dbc8-a457-4d28-8b3b-65beed085716",
"bucket": "minerva-test-cf-common-tilebucket-1su418jflefem"
}
[INFO]	2018-09-05T01:17:24.875Z	e50b2988-6e16-494c-af8e-6e50355d493d	Starting new HTTPS connection (1): batch.us-east-1.amazonaws.com
END RequestId: e50b2988-6e16-494c-af8e-6e50355d493d
REPORT RequestId: e50b2988-6e16-494c-af8e-6e50355d493d	Duration: 6006.21 ms	Billed Duration: 6000 ms Memory Size: 1024 MB	Max Memory Used: 79 MB	
2018-09-05T01:17:30.840Z e50b2988-6e16-494c-af8e-6e50355d493d Task timed out after 6.01 seconds

[INFO]	2018-09-05T01:17:31.967Z	Found credentials in environment variables.
[INFO]	2018-09-05T01:17:32.37Z	Starting new HTTPS connection (1): ssm.us-east-1.amazonaws.com

There should be no reason for this to time out, it looks like potentially an AWS issue. If this is more than a one time error then we can work around by increasing the lambda timeout, or with retry logic in the step function.