qa: set, get, list and remove custom metadata for snapshot
Following test are added:
1. Set custom metadata for subvolume snapshot.
2. Set custom metadata for subvolume snapshot(Idempotency).
3. Get custom metadata for specified key.
4. Get custom metadata if specified key not exist (Expecting error ENOENT).
5. Get custom metadata if no any key-value is added means section not exist (Expecting error ENOENT).
6. Update value for existing key in custom metadata.
7. List custom metadata of subvolume snapshot.
8. List custom metadata of subvolume snapshot if no any key-value is added (Expect empty json/dictionary)
9. Remove custom metadata for specified key.
10. Remove custom metadata if specified key not exist (Expecting error ENOENT).
11. Remove custom metadata if no any key-value is added means section not exist (Expecting error ENOENT).
12. Remove custom metadata with --force option.
13. Remove custom metadata with --force option if specified key not exist (Expecting command to succeed because of '--force' option)
14. Remove subvolume snapshot and verify whether metadata for snapshot is removed or not
docs: set, get, list and remove custom metadata for snapshot
Set custom metadata on the snapshot as a key-value pair using
$ ceph fs subvolume snapshot metadata set <vol_name> <subvol_name> <snap_name> <key_name> <value> [--group_name <subvol_group_name>]
note: If the key_name already exists then the old value will get replaced by the new value.
note: The key_name and value should be a string of ASCII characters (as specified in python's string.printable). The key_name is case-insensitive and always stored in lower case.
note: Custom metadata on a snapshots is not preserved when snapshotting the subvolume, and hence, is also not preserved when cloning the subvolume snapshot.
Get custom metadata set on the snapshot using the metadata key::
$ ceph fs subvolume snapshot metadata get <vol_name> <subvol_name> <snap_name> <key_name> [--group_name <subvol_group_name>]
List custom metadata (key-value pairs) set on the snapshot using::
$ ceph fs subvolume snapshot metadata ls <vol_name> <subvol_name> <snap_name> [--group_name <subvol_group_name>]
Remove custom metadata set on the snapshot using the metadata key::
$ ceph fs subvolume snapshot metadata rm <vol_name> <subvol_name> <snap_name> <key_name> [--group_name <subvol_group_name>] [--force]
Using the '--force' flag allows the command to succeed that would otherwise fail if the metadata key did not exist.
mgr/volumes: set, get, list and remove custom metadata for snapshot
If CephFS in ODF configured in external mode, user like to use
subvolume snapshot metadata to store some Openshift specific
information, as the PVC/PV/namespace the subvolumes/snapshot
are coming from. For RBD volumes, it's possible to add metadata
information to the images using the 'rbd image-meta' command.
However, this feature is not available for CephFS volumes.
We'd like to request this capability.
Zac Dover [Tue, 14 Jun 2022 22:15:33 +0000 (08:15 +1000)]
doc/dev: s/master/main/ in basic workflow
This PR changes "master" to "main" in the
basic_workflow.rst file. I have even changed
"master" to "main" in some terminal output from
several years ago. This isn't historically ac-
curate, of course, but my hope is that this change
will prevent someone in the future from being con-
fused about why an antiquated branch name is ref-
erred to.
Or Friedmann [Tue, 19 Apr 2022 12:00:28 +0000 (12:00 +0000)]
rgw: RGWCoroutine::set_sleeping() checks for null stack
users of the RGWOmapAppend coroutine don't manage the lifetime of its
underlying coroutine stack, so end up making calls on RGWOmapAppend
after its stack goes away. this null check is a band-aid, and there are
still several other calls in RGWCoroutine that don't check for null
stack
Fixes: https://tracker.ceph.com/issues/49302 Signed-off-by: Or Friedmann <ofriedma@redhat.com> Signed-off-by: Casey Bodley <cbodley@redhat.com>
(cherry picked from commit 3f0f831d66c7d43c9872f5de2aceb68aef4004d8)
mon/OSDMonitor: Ensure kvmon() is writeable before handling "osd new" cmd
Before proceeding to handle "osd new" mon command as part of
OSDMonitor::prepare_command_impl(), a check is made to verify if the
authmon is writeable. Later on, prepare_command_osd_new() invokes
KVMonitor::do_osd_new() to create pending dmcrypt keys and calls
propose_pending(). The propose could fail (with an assertion failure)
if there was a prior mon command that resulted in the kvmon invoking
propose_pending().
In order to avoid such a situation, introduce a check to verify that
kvmon is also writeable in OSDMonitor::prepare_command_impl(). If it
is not writeable, the op is pushed into the wait_for_active context
queue to be retried later.
Zac Dover [Mon, 13 Jun 2022 21:48:46 +0000 (07:48 +1000)]
doc/dev: s/master/main/ essentials.rst dev guide
This PR changes all reference to the "master" branch
to references to the "main" branch (because we renamed
"master" to main", and the docs now need to reflect that).
Zac Dover [Sun, 12 Jun 2022 23:41:28 +0000 (09:41 +1000)]
doc/start: rewrite CRUSH para
This PR supersedes https://github.com/ceph/ceph/pull/46584
and makes changes suggested by Anthony D'Atri that improve
the coherence and consistency of the paragraph that explains
the basics of the CRUSH algorithm.
Zac Dover [Wed, 8 Jun 2022 19:19:16 +0000 (05:19 +1000)]
doc/start: make OSD and MDS structures parallel
This PR makes the "Ceph OSDs" and "MDSs" bullet points
parallel by naming "object storage daemon" before referring
to the (admittedly more common and colloquial, but surely
unknown to people who genuinely require a document called
'Intro') acronym "OSD".
Zac Dover [Mon, 13 Jun 2022 04:34:36 +0000 (14:34 +1000)]
doc/start: rewrite hardware-recs networks section
This rewrites the first two-thirds of the "Networks"
section of the Hardware Recommendations page in the
Intro to Ceph document. I have tried to divide the
techincal content in this section into subsections
that foreground the various subjects covered.
7. Checking number of pg log's entries and dups
```
rzarz@ubulap:~/dev/ceph/build$ for pgid in `cat osd0_pgs.txt`; do echo $pgid; bin/ceph-objectstore-tool --data-path dev/osd0 --op log --pgid $pgid | jq '(.pg_log_t.log|length),(.pg_log_t.dups|length)'; done
2.7
10020
2500
2.6
10100
3000
2.3
10012
2800
2.1
10049
2900
2.2
10057
2700
2.0
10027
2900
2.5
10077
2700
2.4
10072
2900
1.0
97
0
```
Conflicts:
src/tools/ceph_objectstore_tool.cc -- undetected conflict
with d5445b8f113797718a0dbb05e884a6bffbfed76a. Fixed by
adopting the patch no not require the `unique_ptr<T>::get()`.
Although the chunking in off-line `dups` trimming (via COT) seems
fine, the `ceph-objectstore-tool` is a client of `trim()` of
`PGLog::IndexedLog` which means than a partial revert is not
possible without extensive changes. Moreover, trimming pg log
is not enough without modifying pg_info_t accordingly which
the reverted patch lacks.
The backport ticket is: https://tracker.ceph.com/issues/55989
Ilya Dryomov [Thu, 9 Jun 2022 11:42:01 +0000 (13:42 +0200)]
cmake: pass -Wno-error when building PMDK
It's hitting pacific with a nuisance -Werror=array-parameter= const
char * vs const char[37] mismatch. Follow commit 91a616b26e83 ("cmake:
pass RTE_DEVEL_BUILD=n when building dpdk") and just disable -Werror.
Jos Collin [Thu, 24 Mar 2022 04:57:58 +0000 (10:27 +0530)]
qa: make test_perf_stats_stale_metrics check only the clients created for the tests
Uses the client's global id to get the metrics, instead of using the index.
This ensures that test_perf_stats_stale_metrics checks only the clients mounted for
the tests.
Fixes: https://tracker.ceph.com/issues/54971 Signed-off-by: Jos Collin <jcollin@redhat.com>
(cherry picked from commit 1621308214cd18750c8be803fc014bdf73e2218a)
Jos Collin [Tue, 29 Jun 2021 09:59:01 +0000 (15:29 +0530)]
mgr, pybind/mgr, mgr/stats: be resilient to offline rank0 MDS
Reregister the user queries during the rank0 MDS failover event
by calling listener.handle_query_updated(). This enables
`ceph fs perf stats` to receive the updated metrics after the
failover.
Fixes: https://tracker.ceph.com/issues/50033 Signed-off-by: Jos Collin <jcollin@redhat.com>
(cherry picked from commit c2470f271cce4d512f2cf00552c9b753e4c69f71)
Revert "osd/PGLog.cc: Trim duplicates by number of entries"
This reverts commit d49ff13c80bbed5fb6c064f9689bb2b6a0a251b8.
which is the in-OSD part of the fix for accumulation of `dup`
entries in a PG Log. Brainstorming it has brought questions
on the OSD's behaviour during an upgrade if there are tons of
dups in the log. What must be double-checked before bringing
it back is ensuring we chunk the deletions properly to not
impose OOMs / stalls in, to exemplify, RocksDB.
The backport ticket is: https://tracker.ceph.com/issues/55989
We really want to have the ability to know how many
entries `PGLog::IndexedLog::dups` has inside.
The current ways are either invasive (stopping an OSD)
or indirect (examination of `dump_mempools`).
client/fuse: Fix directory DACs overriding for root
DACs are overridable for directories. For files,
Read/write DACs are always overridable but executable
DACs are overridable when there is at least one exec bit
set.
The files and directory DACS overriding were handled the
same way for root which is incorrect. This patch fixes
DACs overriding as described above for the root.
This was attempted in commit 69a7ed4eab36 ("run-make-check: enable
WITH_RBD_RWL when WITH_PMEM is true") but never completed. We soon
bumped the requirement on libpmem, so WITH_SYSTEM_PMDK=ON wouldn't
have worked anyway.
Enable the RWL mode conditionally based on WITH_RBD_RWL variable.
Enable the SSD mode unconditionally as it has no special dependencies
and can be built on any architecture.
test/encoding/check-generated.sh: show diff if binary reencode check fails
Take bf0b161115aa ("test/encoding/check-generated.sh: show diff if cmp
fails") a bit further. Suggesting "cmp $tmp1 $tmp2" isn't very helpful
since cmp would report just the mismatch offset.
librbd/cache/pwl: WriteLogCacheEntry constructor must initialize flags
Initializing the individual bit field members leaves the remaining two
bits uninitialized and that garbage state gets persisted.
In general, using bit fields in a structure where the layout actually
matters is not desirable. Even with a few single bits, such as here,
their order, strictly speaking, is not guaranteed:
An implementation may allocate any addressable storage unit large
enough to hold a bit-field. If enough space remains, a bit-field
that immediately follows another bit-field in a structure shall be
packed into adjacent bits of the same unit. If insufficient space
remains, whether a bit-field that does not fit is put into the next
unit or overlaps adjacent units is implementation-defined. The
order of allocation of bit-fields within a unit (high-order to
low-order or low-order to high-order) is implementation-defined.
The alignment of the addressable storage unit is unspecified.
this mutex was only held by one function, OpsLogFile::flush(). this
private member function is only ever called from the background thread,
so doesn't need to be protected by a mutex
as a further cleanup, i renamed 'cond' and 'mutex' now that we don't
need to differentiate between different locks
this shuts up ceph::debug_condition_variable's assertion that the
associated mutex is held during notify_one(). this is not strictly
required for correct use, but is a common source of bugs
Xiubo Li [Mon, 20 Dec 2021 02:21:50 +0000 (10:21 +0800)]
client: force a request to update the perms
If the caller perms is different with the current dirtier's, we
can still cache the attributes locally if possible, but will
mark the ctime needs to be updated forcely and the request will
implicitly flush the dirty caps for us.
Xiubo Li [Mon, 11 Oct 2021 08:45:16 +0000 (16:45 +0800)]
client: improve the code of setattr for atime/mtime
When the Fw caps is issued and increasing the atime/mtime, we can
buffer the atime/mtime. And when the Fs caps is issued and they
are not changing we can just ignore them.
In case when recovering the atime/mtime maybe decreased, no matter
the Fsw caps are issued, always send the request immediatelly.
projects / ceph.git / log