Commit graph

369 commits

Author SHA1 Message Date
39879fa868 [#668] shard/test: Add dontRelease options
Most of the time we would like to close shard with minor exceptions.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-09-07 07:39:39 +00:00
c661ba1312 [#668] shard/test: Use sane defaults in the test constructor
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-09-07 07:39:39 +00:00
268adb79cb [#668] shard/test: Simplify shard construction
newCustomShard() has many parameters but only the first is obligatory.
`enableWriteCache` is left as-is, because it directly affects the
functionality.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-09-07 07:39:39 +00:00
429f941cda [#668] shard/test: Release shard in t.Cleanup()
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-09-07 07:39:39 +00:00
382eb8a485 [#668] shard/test: Disable GC where it is not needed
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-09-07 07:39:39 +00:00
42696016de [#668] shard: Close stopChannel in GC
It is done once, but now we could read it from multiple places.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-09-07 07:39:39 +00:00
bdecfbc1be [#668] shard/test: Move tests to the main package
Semantic patch (also, duplicate definitions are removed):
```
@@
var e identifier
@@
-import "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"

-shard.e
+e
```

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-09-07 07:39:39 +00:00
aa23c6a83a [#668] shard/test: Remove subtest from TestCounters
Otherwise, individual tests cannot be run.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-09-07 07:39:39 +00:00
da8f384324 [#668] shard/test: Fix typo in existence
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-09-07 07:39:39 +00:00
b9b86d2ec8 [#666] shard/test: Fix data race in metrics tests
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-08-31 08:39:42 +00:00
9072772a09 [#649] shard/test: Increase GC remover interval
This was set in #348 to speed up tests.
It seems 100ms doesn't increase overall test time,
but it reduces the amount of logs by 100x factor.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-08-25 10:10:25 +00:00
c4db8e7690 [#637] shard/test: Fix data race
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-08-25 10:10:25 +00:00
96e690883f [#638] Unify test loggers
In some places we have debug=false, in others debug=true.
Let's be consistent.

Semantic patch:
```
@@
@@
-test.NewLogger(..., false)
+test.NewLogger(..., true)
```

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-08-23 11:21:05 +00:00
322c1dc273 [#638] Use test.NewLogger() in tests
Semantic patch (restricted to **/*_test.go):
```
@@
@@
+import "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger/test"
-import "go.uber.org/zap"
-import "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"

-&logger.Logger{Logger: zap.L()}
+test.NewLogger(t, false)
```

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-08-23 11:21:05 +00:00
82cc453be9 [#xx] shard: Fix data race in metrics tests
Protect test metric store fields with a mutex. Probably, not every field
should be protected, but better safe than sorry.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-08-23 10:26:12 +00:00
4d9a6c07fb [#618] core: Replace fmt.Sprintf with strconv.FormatUint
Signed-off-by: Alexander Chuprov <a.chuprov@yadro.com>
2023-08-21 07:14:50 +00:00
f7042c5a6f [#609] Replace zaptest.NewLogger() with zap.L()
Semantic patch:
```
@@
@@
-import "go.uber.org/zap/zaptest"
+import "go.uber.org/zap"

-zaptest.NewLogger(t)
+zap.L()
```

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-08-17 16:51:10 +00:00
e604a3d749 [#607] *: Use zap.Stringer() where possible
Semantic patch:
```
@@
var f expression
var t expression
var a expression
@@
 f(
    ...,
-    zap.String(t, a.String()),
+    zap.Stringer(t, a),
    ...,
)
```

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-08-17 16:50:02 +00:00
21800e9fcc [#162] core: Move literals to constants
Signed-off-by: Alexander Chuprov <a.chuprov@yadro.com>
2023-08-11 15:48:42 +03:00
d641cba2fc [#587] Do not use math/rand.Read
Fix staticcheck warnings after go1.20 update.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-08-09 16:02:44 +03:00
5b7e4a51b7 [#481] Update frostfs-sdk-go and error pointer receivers
Signed-off-by: Alejandro Lopez <a.lopez@yadro.com>
2023-08-09 10:26:53 +00:00
1a0cb0f34a [#421] Try using badger for the write-cache
Signed-off-by: Alejandro Lopez <a.lopez@yadro.com>
2023-08-07 08:16:57 +00:00
b4e72a2dfd [#335] treesvc: Sort nodes by Filename in GetSubTree
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-07-20 10:14:10 +03:00
033eaf77e1 [#496] node: Fix linter importas
Standardize the alias of the
import frostfs-sdk-go/object as objectSDK.

Signed-off-by: Alexander Chuprov <a.chuprov@yadro.com>
2023-07-06 15:36:41 +03:00
cac4ed93d6 [#428] engine: Add low_mem config parameter
Concurrent initialization in case of the metabase resync leads to
high memory consumption and potential OOM.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-06-26 13:29:39 +00:00
16a142cd0c [#373] metrics: Add FSTree metrics
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-06-21 15:13:26 +03:00
d8ecc69d00 [#373] local storage: Pass parent ID
This is required to add shard ID as metric label.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-06-21 15:13:26 +03:00
059e9e88a2 [#373] metabase: Add metrics
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-06-21 15:13:26 +03:00
01a0c97760 [#453] engine: Set Disabled mode to deleted shard
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-06-20 12:04:07 +03:00
4449006862 [#424] metrics: Use mode value as metric value for shard
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-06-14 18:26:19 +03:00
1b364d8cf4 [#424] metrics: Refactor engine metrics
Use histogram vector to measure request duration.
Fix naming like in Prometheus best practice.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-06-14 14:53:32 +03:00
2541d319de [#266] pilorama: Allow to get current tree height
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-06-13 10:00:45 +00:00
263c6fdc50 [#372] node: Add metrics for the error counter in the engine
Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>
2023-06-07 13:04:47 +00:00
74578052f9 [#412] node: Replace tracing package
Use observability module.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-06-01 13:23:11 +00:00
3220c4df9f [#376] metrics: Add GC metrics
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-05-31 10:22:12 +00:00
365a7ca0f4 [#366] node: Stop GC once termination signal received
Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>
2023-05-29 09:35:08 +03:00
802168c0c6 [#364] node: Stop flushing big object when termination signal received
Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>
2023-05-26 16:46:58 +03:00
20a489bdb5 [#393] gc: Use defer to mark handler done
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-05-26 12:14:02 +00:00
2613351008 [#387] gc: Cancel GC is change mode requested
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-05-25 09:38:16 +03:00
2ce43935f9 [#312] metrics: Add writecache metrcis
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-05-24 10:18:39 +00:00
4b768fd115 [#381] *: Move to sync/atomic
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-05-23 08:18:01 +03:00
e4889e06ba [#329] node: Make evacuate async
Now it's possible to run evacuate shard in async.
Also only one evacuate process can be in progress.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-05-19 08:43:52 +00:00
869fcbf591 [#332] gc: Fix expired complex object deletion
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-05-16 12:44:57 +00:00
ab07bad33d [#332] gc: Add complex object unit test
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-05-16 12:44:57 +00:00
4578d00619 [#321] shard/test: Execute tests in parallel
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-05-12 09:45:03 +00:00
d35e4c389f [#321] shard/test: Parallelize TestWriteCacheObjectLoss
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-05-12 09:45:03 +00:00
969bfb603f [#321] shard/test: Parallelize TestShard_List
```
go test -count=1 -run TestShard_List -race .
Before: 2.492s
After:  0.109s
```

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-05-12 09:45:03 +00:00
a181c9e434 [#332] gc: Add additional logging
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-05-10 17:34:40 +03:00
8466894fdf [#250] control: remove DumpShard and RestoreShard RPC
We have `Evacuate` with a cleaner interface.
Also, remove them from CLI and engine.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-04-14 12:28:49 +00:00
6121b541b5 [#242] treesvc: Add tracing spans
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-04-14 10:25:53 +00:00
d62c6e4ce6 [#242] node: Add tracing spans
Add tracing spans for PUT requests.
Add tracing spans for DELETE requests.
Add tracing spans for SELECT requests.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-04-14 10:25:53 +00:00
0e31c12e63 [#240] logs: Move log messages to constants
Drop duplicate entities.
Format entities.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-04-14 05:06:09 +00:00
0920d848d0 [#135] get-object: Add tracing spans
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-04-12 06:52:00 +00:00
cb172e73a6 [#228] node: Use uber atomic package instead standard
Signed-off-by: Airat Arifullin a.arifullin@yadro.com
2023-04-07 15:37:27 +00:00
8908798f59 [#203] node: Resolve unused vars
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-04-06 16:33:36 +03:00
9e2df4b7c7 [#203] node: Fix double imports
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-04-06 16:33:36 +03:00
23575e1ac0 [#210] policier: Resolve contextcheck linter
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-04-05 14:55:52 +03:00
9098d0eec0 [#211] engine: Unify shard mode checks for tree operations
All operations must ensure the shard is not in a degraded mode.
Write operations must also ensure the shard is not in a read-only mode.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-04-05 11:10:39 +00:00
8e5a0dcf27 [#204] gc: Fix GC handlers start
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-04-04 06:48:27 +00:00
a7c79c773a [#168] node: Refactor node config
Resolve containedctx linter for cfg

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-03-31 09:32:59 +03:00
9f0bce5c15 [#183] gc: Fix drop expired locked simple objects
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-03-30 15:33:42 +03:00
341fe1688f [#139] test: Add test storage implementation
This aims to reduce the usage of chmod hackery to induce or simulate
OS-related failures.

Signed-off-by: Alejandro Lopez <a.lopez@yadro.com>
2023-03-29 14:28:49 +00:00
aarifullin
34329d67ff [#86] node: Fix unit test and linter errors
All checks were successful
ci/woodpecker/push/pre-commit Pipeline was successful
Signed-off-by: Airat Arifullin <aarifullin@yadro.com>
2023-03-23 12:42:58 +03:00
9808dec591 [#86] node: Move testing utils to one package
Move testing utils from tests in local_object_storage package to
unified testutil package

Signed-off-by: Airat Arifullin <aarifullin@yadro.com>
2023-03-23 08:19:15 +00:00
fb13902db9 [#156] shard: Make refillMetabase() pass linter checks
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-03-22 07:14:18 +00:00
47e8c5bf23 [#156] pilorama: Remove CIDDescriptor from TreeApply()
Initially it was there to check whether an update is being initiated by
a proper node. It is now obsolete for 2 reasons:
1. Background synchronization fetches all operations from a single node.
2. There are a lot more problems with trust in the tree service, it is
   only used in controlled environments.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-03-22 07:14:18 +00:00
5059dcc19d [#145] shard-gc: Delete expired objects after locks
GC deletes expired locks and objects sequentially. Expired locks and
objects are now being deleted concurrently in batches. Added a config
parameter that controls the number of concurrent workers and batch size.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-03-21 11:31:08 +03:00
6c4a1699ef [#145] shard-gc: Expired locked unit test
Added unit test that verifies that GC deletes expired
locked objects in one epoch.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-03-21 11:31:08 +03:00
97c36ed3ec [#148] linter: Add funlen linter
Long functions are hard to understand and source of errors

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-03-21 09:54:41 +03:00
3e6fd4c611 [#82] pilorama: Allow to store last sync height
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-03-13 11:25:44 +00:00
20de74a505 Rename package name
Due to source code relocation from GitHub.

Signed-off-by: Alex Vanin <a.vanin@yadro.com>
2023-03-07 16:38:26 +03:00
Pavel Karpy
3beef10f89 [#61] node: Do not fetch missing objects
If an object is missing in a `meta`, shard should not look for it in
a `blobstor`.

Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
2023-02-20 14:47:38 +03:00
Pavel Karpy
07ec51ea60 [#2244] node: Add object address to WC's operations
Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
2023-02-20 13:53:27 +03:00
427fe276f2 [#2238] shard: Try closing all components
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-02-20 13:53:27 +03:00
362f24953a [#47] shard: Switch container size metric from physical to logical capacity
Signed-off-by: Artem Tataurov <a.tataurov@yadro.com>
2023-02-17 12:03:42 +03:00
ab21d90cfb [#1794] shard: Add increasing case for the payload size metric
Signed-off-by: Artem Tataurov <a.tataurov@yadro.com>
2023-02-09 13:30:23 +03:00
cb016d53a6 [#1] Fix comments and error messages
Signed-off-by: Stanislav Bogatyrev <s.bogatyrev@yadro.com>
2023-02-06 17:41:14 +03:00
Pavel Karpy
89a0266f5e [#1794] metrics: Track physical object capacity per shard
Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
2023-01-26 20:06:28 +03:00
Evgenii Stratonikov
9513f163aa [#2116] metrics: Track physical object capacity in the container
Currently we track based on `PayloadSize`, because it is already stored
in the metabase and it is easier to calculate without slowing down the
whole system.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
2023-01-26 20:06:28 +03:00
d65a95a2c6 [#28] pilorama: Remove LogMove struct
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-01-25 15:31:47 +03:00
c72576e72f [#2208] engine: Log time-consuming shard operations
Currently the only way to tell whether `evacuate/set-mode` is finished
is to set a very big timeout and _hope_ that the operation will finish.
In this commit we add INFO logs for such operations which should
simplify the life of an administrator.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-01-25 15:31:47 +03:00
Pavel Karpy
64a5294b27 [#2200] shard: Do not fetch big objects from blobovniczas
Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-01-25 15:31:47 +03:00
Pavel Karpy
91757329ae [#2200] shard: Fix blobstor obj fetching
In the previous implementation any non-nil error that preceded object
fetching from blobstor led to iterating over every storage (in other words,
no storage ID information was taken into account). Now storage ID is
skipped only if metabase (storage ID source) returns any error.

Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-01-25 15:31:47 +03:00
6451f019d2 [#2203] shard: Do not panic in Close after unsuccessful Init
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-01-25 15:31:47 +03:00
b4e90cdf51 [#2165] pilorama: Optimize TreeApply when used for synchronization
Because synchronization _most likely_ will have apply already existing
operations, it is much faster to check their presence in a read
transaction. However, always doing this will degrade the perfomance
for normal `Apply`. And, let's be honest, it is already not good.
Thus we add a separate parameter which specifies whether this logic is
enabled.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2022-12-30 11:07:35 +03:00
Pavel Karpy
21717262ec [#2016] shard: Check meta first on Get
`meta` should prevent returning removed objects (`GCMark` and `TS` relations
are `meta` abstractions).

Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
2022-12-30 11:07:35 +03:00
Pavel Karpy
74ec71446f [#2167] shard: Do not use write-cache by default in Head
Both `meta` and `write-cache` are expected to have a fast underlying disk,
so it does not seem like an optimisation. Moreover, `write-cache`'s `Head`
is a `Get` with payload cutting, it _must_ use more memory for no reason
(`meta` was created for such requests). Also, `write-cache` does not allow
performing any "meta" relations checks (such as locking, tombstoning).

Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
2022-12-30 11:07:35 +03:00
Pavel Karpy
eea2892109 [#1956] node: Lock shard's mode on its methods switch
Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
2022-12-30 11:07:35 +03:00
edb1428248 [#2022] Add metric readonly to get shards mode
Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>
2022-12-30 11:07:35 +03:00
Pavel Karpy
923f84722a Move to frostfs-node
Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
2022-12-28 15:04:29 +03:00
Pavel Karpy
634792077e [#1502] node: Store lock object on every container node
Includes extending listing methods in the Storage Engine with object types.
It allows tuning replication/policer algorithms: container nodes do
not remove `LOCK` objects as redundant and try to fulfill `LOCK` placement
on the ohter container nodes.

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
2022-11-19 11:01:04 +03:00
Pavel Karpy
34e8d2ba56 [#1502] shard: Add IsLocked method
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
2022-11-19 11:01:04 +03:00
Evgenii Stratonikov
d65604ad30 [#1985] blobstor: Allow to report multiple errors to caller
Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>
2022-11-19 11:01:04 +03:00
Evgenii Stratonikov
b0e94b6a6b [#1906] writecache: Do not require read-only mode in Flush
It was needed before we started to flush during transition to
`degraded` mode. Now it is confusing.

Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>
2022-11-19 11:01:04 +03:00
Evgenii Stratonikov
d8d3588e1b [#1996] engine: Always select proper shard for a tree
Currently there is a possibility for modifying operations to fail
because of I/O errors and a new tree to be created on another shard.
This commit adds existence check for modifying operations.
Read operations remain as they are, not to slow things.
`TreeDrop` is an exception, because this is a tree removal and trying
multiple shards is not an unwanted behaviour.

Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>
2022-11-03 15:29:23 +03:00
Evgenii Stratonikov
777fd32d4f [#1818] writecache: Increase error counter on background errors
Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>
2022-11-02 14:24:02 +03:00
Evgenii Stratonikov
34501685b7 [#1969] local_object_storage: Move ErrObjectIsExpired to another package
Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>
2022-10-31 11:41:24 +03:00
Evgenii Stratonikov
56de2f1363 [#1969] local_object_storage: Simplify logic error construction
Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>
2022-10-31 11:41:24 +03:00
Evgenii Stratonikov
fcdbf5e509 [#1969] local_object_storage: Add a type for logical errors
All logic errors are wrapped in `logicerr.Logical` type and do not
affect shard error counter.

Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>
2022-10-31 11:41:24 +03:00
Leonard Lyubich
e8c5f03c30 [#1905] shard: Don't log read-only errors of write-cache
There is no need to log `writecache.ErrReadOnly` errors in `Delete`
method of the `Shard`.

Signed-off-by: Leonard Lyubich <ctulhurider@gmail.com>
2022-10-28 18:30:45 +03:00