Performance analysis of NASA's Open Altimetry Web UI

To collect the data for this analysis, the following steps need to be performed: make sure...

1. the burl script is available
2. the curl command is available
3. the getdap4 command is available
4. the ~/.netrc file is present and contains UAT credentials

Run the script OA-performance.sh to collect the data. You can save the generated files to new directories.

About the data in run_1 and run_2

These directories hold csv files that contain the total time, time to connect to the server and the total time to the first byte of data. The timing information was collected by cURL. For data in run_1 the client was not using the EBNET VPN while for run_2 the client was using the VPN.

About the data in raw-bes-logs

See the README.md file in that directory. To get the bes.log files from our UAT deployment, use Kion to access the hosts and use the commands in Driving around on UAT's EC2 instances to copy the raw logs here. Then see the raw-bes-logs README for more information.

Driving around on UAT's EC2 instances

AWS Console --> System Manager --> Session Manager.

To get access to a specific host, 'Start Session'

Once there (useful commands):

• sudo -s gets root access
• docker ps -a shows the container Ids
• docker exec it <container> bash to access the container with a Bash shell
• docker cp <conatiner>:/var/log/bes/bes.log . when run in the EC2 host (not the container) will copy the container's bes.log to the EC2 host's file system
• aws s3 cp bes.log s3://opendap.scratch/UAT-logs/bes-2d47.log How to get files off of an EC2 instance in UAT, et cetera. Use ENV Vars for the credentials.

Set the AWS credentials using:

• [root@ip-10-9-0-37 ~]# export AWS_ACCESS_KEY_ID=******************
• [root@ip-10-9-0-37 ~]# export AWS_SECRET_ACCESS_KEY=****************************************
• [root@ip-10-9-0-37 ~]# export AWS_ACCESS_REGION=us-west-2

Then copy the file to S3:

• [root@ip-10-9-0-37 ~]# aws s3 cp bes.log s3://opendap.scratch/UAT-logs/bes-in-cloud-72bf.log

Back on the host with this OA-analysis repo, get the file using:

aws s3 cp s3://opendap.scratch/UAT-logs/bes-in-cloud-72bf.log .