Under load changing shard mode can lead to it being removed from the
list during some other PUT.
```
Dec 28 07:01:26 az neofs-node[364505]: panic: runtime error: invalid memory address or nil pointer dereference
Dec 28 07:01:26 az neofs-node[364505]: [signal SIGSEGV: segmentation violation code=0x1 addr=0x20 pc=0xc9fbb1]
Dec 28 07:01:26 az neofs-node[364505]: goroutine 11791912 [running]:
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine.(*StorageEngine).putToShard(0xc000435490, {0xc0003f7a28?, 0xc0001192c0?}, 0x2, {0x0, 0x>
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine/put.go:91 +0x1b1
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine.(*StorageEngine).put.func1(0xc000435490?, {0xc0003f7a28?, 0xc0001192c0?})
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine/put.go:71 +0x19c
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine.(*StorageEngine).iterateOverSortedShards(0x1?, {{0x62, 0x23, 0xfe, 0x60, 0x67, 0xd5, 0x>
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine/shards.go:225 +0xc8
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine.(*StorageEngine).put(0xc000435490, {0x1?})
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine/put.go:66 +0x2a9
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine.(*StorageEngine).Put.func1()
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine/put.go:43 +0x2a
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine.(*StorageEngine).execIfNotBlocked(0x8?, 0x38?)
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine/control.go:147 +0xcf
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine.(*StorageEngine).Put(0xc4df775a80?, {0x0?})
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine/put.go:42 +0x65
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine.Put(0xc06d928b80?, 0xc06b1b8dc8?)
Dec 28 07:01:26 az neofs-node[364505]: github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine/put.go:158 +0x19
Dec 28 07:01:26 az neofs-node[364505]: main.engineWithoutNotifications.Put({0x20301b?}, 0x20301b?)
```
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
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>
`GETRANGEHASH` request spawns `GETRANGE` requests if an object could not be
found locally. If the original request contains session, it can be static
and, therefore, fetching session key can not be performed successfully.
As the best effort a node could request object's range with its own key.
Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
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>
Node children are not sorted and could occur in any order.
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>
We use cache to avoid policing the same object multiple times in a short
time span (< 30 seconds). If we have 200_000 objects in a blobstor, it is a bit useless
-- if it takes 1 second to process an object and we have `replicator.pool_size: 20`
in config, the next iteration will happen in 10_000 second which is much
larger than 30 second. However we still consume a lot of memory, so it
makes sense to use saner default.
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
Stop child objects collection if the last returned object (the most "left"
object in the collected chain) starts exactly from the `GETRANGE`'s `from`
value.
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
That could happen if a node forwards request to a node that closed the
connection during the original object stream.
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
Could be related to "websocket users limit reached" on the `neo-go` server
side when an SN/IR is rebooting repeatedly.
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
1. Replace `mn` function with a `sigCount`.
2. Use `notary.FakeMultisigAccount` for account creation.
Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>
Includes:
1. mode change read lock operation in every exported method that r/w the
underlying database;
2. returning `ErrDegradedMode` logical error if any exported method is
called in degraded (without a metabase) mode.
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
```
2022/11/15 08:40:56 worker exits from a panic: runtime error: index out of range [0] with length 0
2022/11/15 08:40:56 worker exits from panic: goroutine 1188 [running]:
github.com/panjf2000/ants/v2.(*goWorker).run.func1.1()
github.com/panjf2000/ants/v2@v2.4.0/worker.go:58 +0x10c
panic({0x1042b60, 0xc0015ae018})
runtime/panic.go:1038 +0x215
github.com/nspcc-dev/neofs-node/pkg/services/policer.(*Policer).shardPolicyWorker.func1()
github.com/nspcc-dev/neofs-node/pkg/services/policer/process.go:65 +0x366
github.com/panjf2000/ants/v2.(*goWorker).run.func1()
github.com/panjf2000/ants/v2@v2.4.0/worker.go:68 +0x97
created by github.com/panjf2000/ants/v2.(*goWorker).run
github.com/panjf2000/ants/v2@v2.4.0/worker.go:48 +0x68
```
Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>
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>
It allows keeping all the locked objects safe after metabase
resynchronization. Currently, all `LOCK` objects are broadcast to all nodes
in a container, it guarantees `LOCK` object presence in a regular situation.
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
1. Remove a layer of indirection for mutex, `ClientCache` is already
used by pointer.
2. Fix duplication of a `AllowExternal` field.
Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>
A container node is expected to have full "get" access to assemble the
object.
A non-container node is expected to forward any request to a container node.
Any token is expected to be issued for an original request sender not for a
node so any new request is invalid by design with that token.
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
Do not lose meta information of the original requests: cache session and
bearer tokens of the original request b/w a new generated ones. Middle
request wrappers should not contain any meta information, since it is
useless (e.g. ACL service checks only the original tokens).
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
After presenting request statuses on the API level, all the errors are
unwrapped before sending to the caller side. It led to a losing invalid
request's context.
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
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>
