You have probably seen the significant improvements to the Jenkins test pool over the last several months. It is really humming now, and all of the major bugs have been worked out. We are seeing an awesome throughput increase on the Jenkins pool and the maintainers have decided that it is time to officially power down the Chandler test pool and rely solely on the Jenkins test pool results in the verified column.
At 2:30 PM UTC, we will shut down the Chandler Test Pool. The hardware dedicated to that pool will stay provisioned for about the next month or so in case we need to spin it back up. The Chandler-Test-Pool flag will also remain in GerritHub for the time being but will be unpopulated on future builds.
On behalf of the SPDK community I'm pleased to announce the release of SPDK 19.01!
This release contains the following new features:
- NVMe-oF TCP/IP Transport: New TCP/IP transport can now be used in NVMe-oF target and NVMe driver.
- Open Channel SSD Flash Translation Layer: Added flash translation layer module allowing for using Open Channel SSDs as block devices. The module is split into the library (located in lib/ftl) and bdev_ftl(lib/bdev/ftl). Please see documentation at https://spdk.io/doc/ftl.html for more details. This feature is considered as experimental.
- Caching bdev based on OCF: New virtual bdev module based on Open CAS Framework (https://open-cas.github.io/) has been added. This provides a high performance block storage caching on top of any underlying bdev. This feature is considered as experimental.
- vhost: A security vulnerability has been identified and fixed in the SPDK vhost target. A malicious vhost client (i.e. virtual machine) could carefully construct a circular descriptor chain which would result in a partial denial of service in the SPDK vhost target. These types of descriptor chains are now properly detected by the vhost target. All SPDK vhost users serving untrusted vhost clients are strongly recommended to upgrade. (Reported by Dima Stepanov and Evgeny Yakovlev.)
- ISA-L Support: ISA-L has been added as an SPDK submodule. ISA-L is enabled by default on x86 architecture to accelerate algorithms such as CRC for iSCSI and NVMe-oF.
- DIF/DIX library: New DIF APIs has been added to generate and verify DIF by byte granularity for both DIF and DIX formats.
The full changelog for this release is available at:
This quarterly release contains 735 commits from 47 different authors. More than 60k lines of code were changed in this release, most of those were additions. This averages to around 1000 lines of code changed per work day !
We'd especially like to recognize all of our first time contributors:
Thanks to everyone for your contributions, participation, and effort!