mirror of https://github.com/ceph/ceph
116 lines
5.2 KiB
Plaintext
116 lines
5.2 KiB
Plaintext
>=18.0.0
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* RGW's default backend for `rgw_enable_ops_log` changed from RADOS to file.
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The default value of `rgw_ops_log_rados` is now false, and `rgw_ops_log_file_path`
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defaults to "/var/log/ceph/ops-log-$cluster-$name.log".
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* The SPDK backend for BlueStore is now able to connect to an NVMeoF target.
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Please note that this is not an officially supported feature.
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* RGW's pubsub interface now returns boolean fields using bool. Before this change,
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`/topics/<topic-name>` returns "stored_secret" and "persistent" using a string
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of "true" or "false" with quotes around them. After this change, these fields
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are returned without quotes so they can be decoded as boolean values in JSON.
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The same applies to the `is_truncated` field returned by `/subscriptions/<sub-name>`.
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* RGW's response of `Action=GetTopicAttributes&TopicArn=<topic-arn>` REST API now
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returns `HasStoredSecret` and `Persistent` as boolean in the JSON string
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encoded in `Attributes/EndPoint`.
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* All boolean fields previously rendered as string by `rgw-admin` command when
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the JSON format is used are now rendered as boolean. If your scripts/tools
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relies on this behavior, please update them accordingly. The impacted field names
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are:
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* absolute
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* add
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* admin
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* appendable
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* bucket_key_enabled
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* delete_marker
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* exists
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* has_bucket_info
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* high_precision_time
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* index
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* is_master
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* is_prefix
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* is_truncated
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* linked
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* log_meta
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* log_op
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* pending_removal
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* read_only
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* retain_head_object
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* rule_exist
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* start_with_full_sync
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* sync_from_all
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* syncstopped
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* system
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* truncated
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* user_stats_sync
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* RGW: The beast frontend's HTTP access log line uses a new debug_rgw_access
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configurable. This has the same defaults as debug_rgw, but can now be controlled
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independently.
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* RBD: The semantics of compare-and-write C++ API (`Image::compare_and_write`
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and `Image::aio_compare_and_write` methods) now match those of C API. Both
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compare and write steps operate only on `len` bytes even if the respective
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buffers are larger. The previous behavior of comparing up to the size of
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the compare buffer was prone to subtle breakage upon straddling a stripe
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unit boundary.
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* RBD: compare-and-write operation is no longer limited to 512-byte sectors.
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Assuming proper alignment, it now allows operating on stripe units (4M by
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default).
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* The 'AT_NO_ATTR_SYNC' macro is deprecated, please use the standard 'AT_STATX_DONT_SYNC'
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macro. The 'AT_NO_ATTR_SYNC' macro will be removed in the future.
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* Trimming of PGLog dups is now controlled by the size instead of the version.
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This fixes the PGLog inflation issue that was happening when the on-line
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(in OSD) trimming got jammed after a PG split operation. Also, a new off-line
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mechanism has been added: `ceph-objectstore-tool` got `trim-pg-log-dups` op
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that targets situations where OSD is unable to boot due to those inflated dups.
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If that is the case, in OSD logs the "You can be hit by THE DUPS BUG" warning
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will be visible.
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Relevant tracker: https://tracker.ceph.com/issues/53729
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>=17.2.1
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* The "BlueStore zero block detection" feature (first introduced to Quincy in
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https://github.com/ceph/ceph/pull/43337) has been turned off by default with a
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new global configuration called `bluestore_zero_block_detection`. This feature,
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intended for large-scale synthetic testing, does not interact well with some RBD
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and CephFS features. Any side effects experienced in previous Quincy versions
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would no longer occur, provided that the configuration remains set to false.
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Relevant tracker: https://tracker.ceph.com/issues/55521
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* telemetry: Added new Rook metrics to the 'basic' channel to report Rook's
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version, Kubernetes version, node metrics, etc.
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See a sample report with `ceph telemetry preview`.
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Opt-in with `ceph telemetry on`.
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For more details, see:
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https://docs.ceph.com/en/latest/mgr/telemetry/
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* OSD: The issue of high CPU utilization during recovery/backfill operations
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has been fixed. For more details, see: https://tracker.ceph.com/issues/56530.
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>=15.2.17
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* OSD: Octopus modified the SnapMapper key format from
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<LEGACY_MAPPING_PREFIX><snapid>_<shardid>_<hobject_t::to_str()>
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to
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<MAPPING_PREFIX><pool>_<snapid>_<shardid>_<hobject_t::to_str()>
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When this change was introduced, 94ebe0e also introduced a conversion
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with a crucial bug which essentially destroyed legacy keys by mapping them
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to
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<MAPPING_PREFIX><poolid>_<snapid>_
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without the object-unique suffix. The conversion is fixed in this release.
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Relevant tracker: https://tracker.ceph.com/issues/56147
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* Cephadm may now be configured to carry out CephFS MDS upgrades without
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reducing ``max_mds`` to 1. Previously, Cephadm would reduce ``max_mds`` to 1 to
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avoid having two active MDS modifying on-disk structures with new versions,
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communicating cross-version-incompatible messages, or other potential
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incompatibilities. This could be disruptive for large-scale CephFS deployments
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because the cluster cannot easily reduce active MDS daemons to 1.
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NOTE: Staggered upgrade of the mons/mgrs may be necessary to take advantage
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of the feature, refer this link on how to perform it:
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https://docs.ceph.com/en/quincy/cephadm/upgrade/#staggered-upgrade
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Relevant tracker: https://tracker.ceph.com/issues/55715
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Relevant tracker: https://tracker.ceph.com/issues/5614
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