Nicola Forbes added a comment - 2018-11-21 16:58 Hi Ed, Thanks for the suggestion. I've just tried it out but unfortunately still get the same error (various combos tried). I haven't had a chance to read through the source code, but it looks like az can only take one availability zone, not a list, and so all subnets must be part of the same az. Nicky

Edward Quick added a comment - 2018-11-19 19:07 Hi Nicola, I could be wrong but a colleague of mine mentioned that you need to provide the AZ list as space delimited (not comma delimited). Ed  

Nicola Forbes added a comment - 2018-11-19 16:14 Hi David, Thanks for replying so quickly. I'm supplying the subnet ids as a comma-separated list (subnet-<string1>, subnet-<string2>, subnet-<string3>). All of the subnets are part of the same VPC but belong to different AZs. subnet-<string1> is part of AZ us-east-1a subnet-<string2> is part of AZ us-east-1b subnet-<string3> is part of AZ us-east-1c I am also listing the three AZs as a comma-separated list in the "availability zone" text box ie. us-east-1a, us-east-1b, us-east-1c It is possible that I have misunderstood the new feature. Do the subnets have to be part of the same availability zone?

David Fluck added a comment - 2018-11-16 20:26 It looks like this change has indeed been released. I've also encountered that error before. How are you listing the subnets? Are you using subnet IDs? Are all of the subnets in the same VPC? This is the relevant code: private List< String > getEc2SecurityGroups(AmazonEC2 ec2) throws AmazonClientException { List< String > groupIds = new ArrayList< String >(); DescribeSecurityGroupsResult groupResult = getSecurityGroupsBy( "group-name" , securityGroupSet, ec2); if (groupResult.getSecurityGroups().size() == 0) { groupResult = getSecurityGroupsBy( "group-id" , securityGroupSet, ec2); } for (SecurityGroup group : groupResult.getSecurityGroups()) { if (group.getVpcId() != null && !group.getVpcId().isEmpty()) { List<Filter> filters = new ArrayList<Filter>(); filters.add( new Filter( "vpc-id" ).withValues(group.getVpcId())); filters.add( new Filter( "state" ).withValues( "available" )); filters.add( new Filter( "subnet-id" ).withValues(getCurrentSubnetId())); DescribeSubnetsRequest subnetReq = new DescribeSubnetsRequest(); subnetReq.withFilters(filters); DescribeSubnetsResult subnetResult = ec2.describeSubnets(subnetReq); List<Subnet> subnets = subnetResult.getSubnets(); if (subnets != null && !subnets.isEmpty()) { groupIds.add(group.getGroupId()); } } } if (securityGroupSet.size() != groupIds.size()) { throw new AmazonClientException( "Security groups must all be VPC security groups to work in a VPC context" ); } return groupIds; }

Nicola Forbes added a comment - 2018-11-16 15:52 - edited Hi, Is this feature now live?  Are there any instructions on how to use it?  I've tried providing a comma-separated list of subnets in different AZs but receive error "com.amazonaws.AmazonClientException: Security groups must all be VPC security groups to work in a VPC context". I can only launch slaves if I specify one subnet and the related AZ.