If I try using this extension without configuring the SQS job queue (ie: I don't even want to use it at all and I omit config for it) then I get this exception:
[b279a293] /help/Contents MWException from line 116 of {testwiki}/extensions/AWS/sqs/JobQueueAmazonSqs.php: Amazon SQS error: Access to the resource https://sqs.us-west-2.amazonaws.com/ is denied. Backtrace: #0 {testwiki}/extensions/AWS/sqs/JobQueueAmazonSqs.php(301): JobQueueAmazonSqs->connect() #1 {testwiki}/extensions/AWS/sqs/JobQueueAmazonSqs.php(202): JobQueueAmazonSqs->getAttributes() #2 {testwiki}/extensions/AWS/sqs/JobQueueAmazonSqs.php(208): JobQueueAmazonSqs->doGetSize() #3 {testwiki}/includes/jobqueue/JobQueue.php(184): JobQueueAmazonSqs->doIsEmpty() #4 {testwiki}/includes/jobqueue/JobQueueGroup.php(283): JobQueue->isEmpty() #5 {testwiki}/includes/jobqueue/JobQueueGroup.php(259): JobQueueGroup->getQueuesWithJobs() #6 {testwiki}/includes/MediaWiki.php(635): JobQueueGroup->queuesHaveJobs(integer) #7 {testwiki}/includes/MediaWiki.php(425): MediaWiki->triggerJobs() #8 {testwiki}/index.php(41): MediaWiki->run() #9 {main}