External contributions:
* Add additional percentile samples to mysql_service benchmark and others
(thanks @zbjornson; GH-729).
* Add Mesos-Marathon as a provider (thanks @mateusz-blaszkowski; GH-679,
GH-731).
* Use only available floating-ips for OpenStack (thanks @meteorfox; GH-733).
* Add OpenStack CLI-based support for object_storage_service benchmark (thanks
@meteorfox; GH-738).
* Make printed benchmark results more readable (thanks @wonderfly; GH-747).
* Clean up formatting, grammar, and markdown in README.md (thanks @mbrukman;
GH-748).
* Add links to projects and licenses in README.md (thanks @mbrukman; GH-763).
* Fix a bug that caused --helpxml to not work (thanks @jldiaz; GH-782).
* Make OpenStack VM username configurable with a new --openstack_image_username
flag (thanks @lwatta; GH-788).
New features:
* Allow users to specify a storage region for the object_storage_service
benchmark with a new --object_storage_region flag (GH-609).
* Add support for running a background CPU workload while executing a benchmark
(GH-715, GH-762).
* Allow creating GCE custom VMs easily from command-line flags (GH-727).
* Add the --gce_network_name to allow GCE users to use pre-existing networks
(GH-746).
* Publish a PTRANS sample from the hpcc benchmark (GH-785).
* Add support for running a background network workload while executing a
benchmark (GH-786).
* Add a CSV sample output format (GH-791).
Enhancements:
* Trim blocks while formatting and mounting disks (GH-692).
* Raise an error when no requests succeed in redis_benchmark (GH-702).
* Update the Google benchmark set (GH-705).
* Add input-checking to disk specs (GH-675, GH-779).
* Let disks on Windows machines return Windows DeviceIds (GH-743).
* Speed up Cassandra cluster boot by setting "auto_bootstrap" to false (GH-751).
* Defer package update for Ubuntu (GH-752).
* Add provider-specific requirements.txt files (GH-753).
* Increase preload thread count for YCSB benchmarks (GH-760). This change
affects some of the samples generated by the aerospike_ycsb, cassandra_ycsb,
and mongodb_ycsb benchmarks, including the overall Runtime and overall
Throughput.
* Guarantee order of VM and disk spec config option decoding (GH-792).
Bugfixes and maintenance updates:
* Create one AWS VPC/IGW/PlacementGroup per region (GH-687, GH-798).
* Update README.md instructions for setting up PKB for GCE (GH-689).
* Update comments in pkb.py to reflect new provision and teardown stages
(GH-691).
* Fix bug that prevented object_storage_service benchmark from running in stages
(GH-694).
* Add test helpers that make it easier to mock command-line flags (GH-695,
GH-730).
* Delete set-interrupts.sh (GH-703).
* Make process exit status non-zero upon benchmark failure (GH-713).
* Move "To run again" message from teardown to cleanup stage (GH-714).
* Fix creation of AWS VMs using Placement Groups (GH-721).
* Create AWS/GCE default access rules before creating VMs (GH-726, GH-756).
This change affects the Boot Time measured by the cluster_boot benchmark.
* Fix a GCE boot disk creation bug (GH-736).
* ntttcp benchmark fixes (GH-737).
* Force mongodb_ycsb benchmark to use only one VM (GH-755).
* Unmount /mnt if it exists prior to creating a scratch filesystem (GH-757).
* Move provider constants to a separate module (GH-758).
* Fix a bug when creating an AWS VPC outside the user's default region (GH-774).
* Add tests for generating help strings (GH-782).
* Kill servers started by the iperf benchmark as part of its cleanup (GH-784).
* Fix some style inconsistencies (GH-789).
* Move operating system constants to a separate module (GH-790).
* Fix some broken tests (GH-795, GH-796).
