👌🥳🕺🕺 On Thu, 6 Feb 2025 at 2:56 PM, Yuri Weinstein <yweinste@xxxxxxxxxx> wrote: > We're happy to announce the 1st backport release in the Squid series. > > https://ceph.io/en/news/blog/2025/v19-2-1-squid-released/ > > Notable Changes > --------------- > * CephFS: The command `fs subvolume create` now allows tagging > subvolumes by supplying the option > `--earmark` with a unique identifier needed for NFS or SMB services. > The earmark > string for a subvolume is empty by default. To remove an already > present earmark, > an empty string can be assigned to it. Additionally, the commands > `ceph fs subvolume earmark set`, `ceph fs subvolume earmark get`, and > `ceph fs subvolume earmark rm` have been added to set, get and > remove earmark from a given subvolume. > > * CephFS: Expanded removexattr support for CephFS virtual extended > attributes. > Previously one had to use setxattr to restore the default in order > to "remove". > You may now properly use removexattr to remove. You can also now remove > layout > on the root inode, which then will restore the layout to the default. > > * RADOS: A performance bottleneck in the balancer mgr module has been > fixed. > > Related Tracker: https://tracker.ceph.com/issues/68657 > > * RADOS: Based on tests performed at scale on an HDD-based Ceph > cluster, it was found > that scheduling with mClock was not optimal with multiple OSD shards. For > example, in the test cluster with multiple OSD node failures, the client > throughput was found to be inconsistent across test runs coupled with > multiple > reported slow requests. However, the same test with a single OSD shard > and > with multiple worker threads yielded significantly better results in > terms of > consistency of client and recovery throughput across multiple test runs. > Therefore, as an interim measure until the issue with multiple OSD shards > (or multiple mClock queues per OSD) is investigated and fixed, the > following > change to the default HDD OSD shard configuration is made: > > - `osd_op_num_shards_hdd = 1` (was 5) > - `osd_op_num_threads_per_shard_hdd = 5` (was 1) > > For more details, see https://tracker.ceph.com/issues/66289. > > * mgr/REST: The REST manager module will trim requests based on the > 'max_requests' option. > Without this feature, and in the absence of manual deletion of old > requests, > the accumulation of requests in the array can lead to Out Of Memory > (OOM) issues, > resulting in the Manager crashing. > > Getting Ceph > ------------ > * Git at git://github.com/ceph/ceph.git > * Tarball at https://download.ceph.com/tarballs/ceph-19.2.1.tar.gz > * Containers at https://quay.io/repository/ceph/ceph > * For packages, see https://docs.ceph.com/en/latest/install/get-packages/ > * Release git sha1: 58a7fab8be0a062d730ad7da874972fd3fba59fb > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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