This preview shows page 122 - 125 out of 395 pages.
•VPC with Public and Private subnets and Hardware VPN Access—Select this option to use aprivate subnet or if data for your application is stored in your own network (for example, in anOracle database). This option also allows you to include public subnets within the same VPC asprivate subnets.5.Confirm the VPC settings. The images show both single public and private and public scenarios.116
Amazon EMR Management GuideConfigure Networking•To work with Amazon EMR, the VPC with a public subnet must have both an internet gateway anda subnet.For a VPC in a private subnet, all EC2 instances must at minimum have a route to Amazon EMRthrough the elastic network interface. In the console, this is automatically configured for you.•Use a private IP address space for your VPC to ensure proper DNS hostname resolution; otherwise,you may experience Amazon EMR cluster failures. This includes the following IP address ranges:•10.0.0.0 - 10.255.255.255•172.16.0.0 - 172.31.255.255•192.168.0.0 - 192.168.255.255• Choose Use a NAT instance insteadand select options as appropriate.•Optionally choose to Add endpoints for S3 to your subnets.•Verify that Enable DNS hostnamesis checked. You have the option to enable DNS hostnameswhen you create the VPC. To change the setting of DNS hostnames, select your VPC in the VPClist, then choose Editin the details pane. To create a DNS entry that does not include a domainname, create a value for DHCP Options Set, and then associate it with your VPC. You cannot editthe domain name using the console after the DNS option set has been created.For more information, see Using DNS with Your VPC.•It is a best practice with Hadoop and related applications to ensure resolution of the fully qualifieddomain name (FQDN) for nodes. To ensure proper DNS resolution, configure a VPC that includes aDHCP options set whose parameters are set to the following values:•domain-name= ec2.internalUse ec2.internalif your region is US East (N. Virginia). For other regions,use region-name.compute.internal. For examples in us-west-2, use us-west-2.compute.internal. For the AWS GovCloud (US-West) region, use us-gov-west-1.compute.internal.•domain-name-servers= AmazonProvidedDNSFor more information, see DHCP Options Sets in the Amazon VPC User Guide.6.Choose Create VPC. If you are creating a NAT instance, it may take a few minutes for this tocomplete.117
Amazon EMR Management GuideConfigure NetworkingAfter the VPC is created, go to the Subnetspage and note the identifier of one of the subnets of yourVPC. You use this information when you launch the EMR cluster into the VPC.Launch Clusters into a VPCAfter you have a subnet that is configured to host Amazon EMR clusters, launch the cluster in thatsubnet by specifying the associated subnet identifier when creating the cluster.
As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.
Temple University Fox School of Business ‘17, Course Hero Intern
I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.
University of Pennsylvania ‘17, Course Hero Intern
The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.
Tulane University ‘16, Course Hero Intern
Ask Expert Tutors
You can ask
You can ask ( soon)
You can ask
(will expire )