Alex Vanin
bbe700fa37
[ #250 ] service/policer: Don't shrink node list at unknown error
...
Every unknown error must not decrease shortage counter and must not
exclude faulty node from the node list, because this list will be used
later for replication.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-14 21:49:50 +03:00
Alex Vanin
e6f2d84736
[ #246 ] blobovnivza: Fix deadlock on concurrent evict and open new blobovnicza
...
Deadlock occurs when `getActivate` function opens new blobovnicza and that
invokes evict in LRU cache of open blobovniczas. `getActivate` makes
`activeMtx.Lock()` and then cache evict makes `activeMtx.RLock()` and deadlock
happens.
Fix contains two steps:
- add separate mutex to open blobovniczas (1),
- split single Lock outside of `updateAndGet` (2).
As for the (1) `bbolt.Open()` locks when it tries to open the same file from
two threads. So separate mutex will prevent that.
As for the (2) `updateAndGet` function contains from two parts. At first it
checks if required blobovnicza is ready and it returns it. In this case we can
use the simple RLock. But then there is an option when we should open new
blobovnicza and update map of active blobovniczas.
In this case we call `openBlobovnicza` without activeMtx lock. Cache evict
happens there and it won't cause deadlock.
Then we lock activeMtx to update the map of active blobovniczas. Concurrency can
happen there. However `openBlobovnicza` will not open the same blobovnicza twice,
so we can make one more check if opened blobovnicza was activated while thread was
locked in activeMtx. If so, then return active blobovnicza, else finish activation.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-14 13:37:45 +03:00
Leonard Lyubich
91bea44a1a
[ #245 ] blobovnicza: Fix initializing dimensional buckets
...
In previous implementation Blobovnicza could incorrectly initialize
dimensional buckets: if SmallSizeLimit = 2 ^ X + Y && Y < 2 ^ X, then
largest dimensional bucket was [2 ^ (X - 1) : 2 ^ X]. This was caused by an
incorrect condition for stopping the iterator along the dimensional
boundaries.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-14 12:48:59 +03:00
Leonard Lyubich
fb50362dcc
[ #243 ] services/object: Share common parameters across services
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
a01262d8bd
[ #243 ] service/object: Fix object chain assembly for tombstone body
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
9265e31e65
[ #243 ] services/object: Fix lost tokens when generating requests
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
fe3906c295
[ #243 ] object/delete: Implement new service processing
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
510e9ff2ec
[ #243 ] core/object: Replace test content of tombstone with an API structure
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
4f5d5c7e45
Write system path to BoltDB on blobovnicza closing
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
627012e4fe
[ #241 ] object/search: Set container ID parameter of storage engine call
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
611a29f682
[ #241 ] object/search: Refactor service processing
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
3bfb18386b
object/get: Replace code with function call
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
63bc3aab82
[ #242 ] engine: Do not iterate over shards if cid is not set
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
9fb7190358
[ #242 ] service/object: Support ContainerID field in local search
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
511b5f782a
[ #242 ] engine: Support ContainerID argument in shard selects
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
f585772746
[ #242 ] shard: Support ContainerID argument in metabase selects
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
b97f818323
[ #242 ] metabase: Make ContainerID a mandatory parameter for Select
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
0e1f05ff45
[ #239 ] object/head: Implement new service processing
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
9dd83bdf0d
[ #235 ] blobstor: Return object.ErrRangeOutOfBounds from shallow dir
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
41b9fa5b45
[ #235 ] engine: Return OutOfBounds error
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
173d34a8a2
[ #235 ] object/get: Set common operation parameters
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
7e56427534
[ #235 ] object/getrangehash: Implement new service processing
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
0fc5ea674c
[ #235 ] object/getrange: Fix incorrect processing of range from last child
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
397d912e19
[ #235 ] object/head: Support raw flag in service
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
1d23483828
[ #235 ] services/object: Implement new GetRange algorithm
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
91d8e0a4de
[ #238 ] engine: Support raw flag in Head method
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
da42ee3a26
[ #238 ] engine: Stop shard iteration at split info error in Head
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
69dee6ec6d
[ #238 ] shard: Support raw flag in Head method
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
bf7a390304
[ #238 ] metabase: Support raw flag in Get method
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
c267a08886
[ #236 ] engine: Stop shard iteration at split info error in GetRange
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
590745204c
[ #237 ] metabase: Structure parameters and results of all operations
...
All parameters and resulting values of all metabase operations are
structured in new types. The most popular scenarios for using operations are
moved to auxiliary functions.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
a875d80491
Remove outdated code of metabase and localstore
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
869d9e571c
[ #233 ] object/head: Remove getting the right child header
...
With the update of the local storage engine, the headers of virtual objects
are directly given. In this regard, the step with obtaining the the right
child header is removed.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
f24daa10ff
[ #233 ] services/object: Implement new Get algorithm
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
26f03c6301
[ #232 ] Fix SplitInfo update in existed virtual object
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
e0350efe00
[ #231 ] services/policer: Use engine.List method
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
ee1e3931a5
[ #231 ] engine: Add List method
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
a7087faa1a
[ #231 ] shard: Add List method to return all available objects
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
a1cb48f800
[ #231 ] metabase: Add container lister
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
3a37eda410
[ #230 ] engine: Stop on first SplitInfoError in Get method
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
a488d202e1
[ #230 ] engine: Rename WithAddress
to WithAddresses
for delete operations
...
Delete works with multiple addresses at once so it is convenient to
show it in parameter setter function.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
7c97bd1360
[ #230 ] shard: Add test for getting SplitInfo
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
bf9e938a3b
[ #230 ] metabase: Return SplitInfoError in Exist method
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
e2de95e3f6
[ #230 ] metabase: Index split info structures
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
eaae5a5dd7
[ #229 ] blobovnicza: Store objects in a binary format
...
In previous implementation Blobovnicza's stored objects in protocol format
which did not allow working with externally compressed objects. To achieve
this goal, operations Get and Put no longer work with the structure of the
object, but only with abstract binary data. Operation GetRange has become
incorrect in its original purpose to receive the payload range. In this
regard, BlobStor receives the payload range of the object through Get
operation. In the future either Blobovnicza will learn to compress objects
by itself, or the GetRange operation will be eliminated.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
3d77fdb347
[ #222 ] Set write cache specific config on application level
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
af2719689d
[ #222 ] Do not compress data in blobovniczas
...
Blobovnicza returns object, so we can't put compressed
data there. Compressed data won't be deserialized correctly.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
6bec50963b
[ #222 ] Add tests for shards
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
ce92df3543
[ #222 ] Return nil in metabase.IsSmall
if object is big
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
862f9a3f1a
[ #222 ] Put small objects in blobovnicza in blobStor
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
351e4b4592
[ #222 ] Support Inhume and Delete in object service
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
21708d5408
[ #222 ] Add Exists method in storage engine
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
f470022594
[ #222 ] Update Select method in storage engine
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
25486194b9
[ #222 ] Update Head method in storage engine
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
67d4b0db12
[ #222 ] Move ErrAlreadyRemoved to core package
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
6a3e3e5642
[ #222 ] Update Range method in storage engine
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
c9b1c6603e
[ #222 ] Update Get method in storage engine
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
f3e96f8c19
[ #222 ] Update Delete method in storage engine
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
aa8dd18b07
[ #222 ] Update Put method in storage engine
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
f45b7a048d
[ #222 ] Rename WithTreeRoot..
to WithRoot..
in blobstor opts
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
d4e48b28b1
[ #222 ] Add Inhume method to storage engine
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
92c95150cd
[ #222 ] Use write cache options in storage app
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
69ba295077
[ #222 ] Add ToMoveIt method in shard
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
ccd8760fbc
[ #222 ] Update Exists method in shard
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
97a2e26b71
[ #222 ] Add Head method in shard
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
244e244c0e
[ #222 ] Add GetRange method in shard
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
73505fe582
[ #222 ] Update Get method in shard
...
Now `Get`, `Head` and `GetRange` will be
separate methods on shard.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
31371771e8
[ #222 ] Update Delete method in shard
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
5fc54386b0
[ #222 ] Update Put method in shard
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
72f8ca1afd
[ #222 ] Add Inhume method for shard
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
1b76458684
[ #222 ] Add writeCache instance to shard
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
cbdcfb9159
[ #220 ] shard: Enable write cache through option
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
47d2239332
[ #220 ] localstorage: Replace basic errors to core library
...
Replace ErrNotFound and ErrRangeOutOfBounds to core/object package in order
to share them across the libraries.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
7512a5ba18
[ #220 ] blobstor: Implement "small" operations
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
7f20e6f9db
[ #220 ] blobstor: Implement GetRange on blobovnicza tree
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
ef095d4871
[ #220 ] blobovnicza: Implement GetRange operation
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
e758c246b7
[ #220 ] localstorage: Implement Open/Init/Close methods
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
2963473c08
[ #220 ] localstorage: Implement hrw.Hasher over Shard structure
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
88c1584e6a
[ #220 ] shard: Implement Open/Init/Close methods
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
d30454a572
[ #220 ] shard: Use new metabase implementation
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
d8d38d3476
[ #220 ] blobstor: Add blobovnicza tree structure to BlobStor
...
Add blobovnicza instance to BlobStor structure. Create blobovnicza tree in
BlobStor constructor. Implement Open/Init/Close methods.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
51ab6991d2
[ #220 ] blobstor: Implement method to close blobovnicza tree
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
34a259d5c0
[ #220 ] blobstor: Support zero shallow depth of blobovnicza tree
...
There is a need to support single blobovnicza in blobovnicza tree. This can
be achieved with a width of 1, and a depth of 0 or 1. With depth = 1 one
redundant directory is created, inside which there is a blobovnicza. If the
depth is zero, the blobobnivza will be in the root path. Fix negative
capacity in iterateDeepest method with zero depth.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
8bff073061
[ #220 ] blobstor: Fix hard-code in blobovnicza unit test
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
9d4fba923c
[ #199 ] Create metabase instance as storage engine component
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
8a293c76ed
[ #199 ] Ignore invalid search attributes
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
337e2f6a57
[ #199 ] Add SplitID index in metabase
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
74d44beb99
[ #199 ] Add CleanUp method to remove empty buckets from metabase
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
7fb87aac85
[ #199 ] Support Delete operation in metabase
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
e42fa69735
[ #199 ] Make option to get object from metabase without graveyard check
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
b45d523125
[ #199 ] Split IsSmall check in metabase
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
5bfae833fe
[ #199 ] Update blobovniczaID on existed objects in metabase
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
54cd91adff
[ #199 ] Simplify tests
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
a8d76f2ebb
[ #199 ] Implement ObjectID selection filter in metabase
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
700bd7de01
[ #199 ] Get virtual objects from metabase
...
Virtual objects are obtained differently with
relative lookup in parent bucket.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
4e7d49791b
[ #199 ] Index parent first in metabase
...
With exist check we should index parent first, because
as soon as child will be added to metabase, exist on
parent will return true even if it was not indexed yet.
Also this commit makes one db.Update instead of two for
parent and child.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
f6387a9b94
[ #199 ] Make exist check on all primary buckets in metabase
...
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Alex Vanin
e478c0d024
[ #199 ] Refactor metabase internal structure
...
Accoring to MetaBase-Plan-B storage engine specification.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
1c81d507fd
[ #218 ] blobstor: Inherit the root path to Blobovnicza from BlobStor
...
Place the root of blobovnicza tree in a subdirectory of BlobStor with same
permissions. Abolish WithBlobovniczaRootPath and WithBlobovniczaPersmissions
options.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
4c3d231e82
[ #218 ] blobstor: Implement blobovnicza tree
...
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00