In previous implementation parent object header finalized twice in size
limiter + formatter. On the one hand, this added redundant action, on the
other hand, it could provoke a difference in the headers of the linking and
the last part. Change formatter to finalize parent header if it does not
container the signature. Change size limiter to reuse parent header after
last child finalization in linking child.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
In previous implementation DB.Containers method could return an error about
invalid container ID string format. This could happen if some of top-level
buckets had name w/o "_" substring.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
In previous implementation eACL validator didn't take into account container
and object ID fields of request bodies.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
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>
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>
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>
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>
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>
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>
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>
Replace ErrNotFound and ErrRangeOutOfBounds to core/object package in order
to share them across the libraries.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
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>
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>
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>
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>
Blobovnicza ID parameter provides the ability to specify particular
blobovnicza to delete object from. In this case only specified blobovnicza
is processed.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
In previous implementation objects were classified by size according to
payload size. From now they are classified by the size of their binary
representation.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Implement "big or small" property classifier (only the size of the payload
is temporarily considered). Save "big" objects in shallow dir. Save "small"
objects in shallow dir until the moment of implementation of blobovnicza.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Implement Put/Get/GetRange/Select/SelectAll functions over storage
engine. These functions are going to be used by Object service.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
In previous implementation Shard accessed the BlobStor to get the
object header. However, the shard must take headers from the metabase.
From now zero length of the requested payload range seens as object
header request. In this case shard calls metabase to get the header.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
In previous implementation WithCompressObjects returned Option
than could panic if zstd (de)compressor creation failed with error.
From now errors with (de)compressor creation result in an option
without using data compression. In this case, the error is written
to the log passed to the option constructor.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
In previous implementation each operation on local storage
locked engine mutex. This was done under the assumption that
the weights of the shards change as a result of write operations.
With the transition to static weights of shards, it is no longer
necessary to lock the global mutex during the execution of operations.
However, since the set of engine shards is dynamic, there is still a
need to control multiple access to this set. The same mutex is used
for synchronization.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
In previous implementation each shard operation locked
RW shard mutex. With this approach RW operations were executed
one-by-one and blocked the execution of RO operations.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Correct the calculation of maximum value of fs tree depth. Fix check
of the max depth overflow in WithShallowDepth function.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
GetPrm has WithPayloadRange option to specify the requested
payload range. In previous implementation StorageEngine.Get
method ignored this option. From now zero length matches
full payload request.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Now alphabet contracts use signature collection to make
a vote. All inner ring nodes votes for some list of validators
the same way as they vote fore new epoch or new container.
As soon as list is accepted by alphabet contracts, each of them
votes for one candidate from the list.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
With this argument neofs-ir will be run as an CLI
application that initialize inner ring server, invokes
`vote` method on corresponding alphabet contract and
exits.
User can provide a comma-separated list of validator
public keys.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
This function calculates validator key based on inner ring index
and invokes `Vote` method of corresponding alphabet contract.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
In previous implementation linking object inherited only ID of the parent
object. From now it inherits full header like last child.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
In previous implementation child objects inherited parent attributes after
split-transformation, which was redundant. From now attributes are not
inherited.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
In previous implementation placement traverser processed incorrectly with
local placement build. Also entity incorrectly traversed the placement
vectors for fixed number read operations until success. The erroneous
behavior was due to the use of a vector number of successes instead of
a scalar number in these scenarios.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
With updated specification of object related operation
we don't have this search attribute any more and we
should not use functions related to this attribute.
This commit breaks object service logic, however it will
be fixed later.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
ErrEACLNotFound error was defined in implementation package. EACL validator
checked this error after the call of eACL storage interface method. Replace
ErrEACLNotFound to core container library. in order to: on the one hand not
use an implementation error, on the other hand, to be able to reuse a
generic type error (404).
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Now morph library returns error if there is not eACL in
sidechain storage. However in this case eACL check should
be passed since it is the same as having empty eACL table.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
Sticky bit checks if object owner and request owner are the
same. Container owner should not used in this check.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
`owner` field may be misused as request sender owner, however
it is a owner of a container for that request. New naming
should be clear.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
