Node response with `NODE_UNDER_MAINTENANCE` status signals that the node
was switched to maintenance mode. There is a delay between the actual
switch and the reflection in the network map of up to one epoch. To
speed up the reaction to the maintenance, it is required to recognize
such node responses in the Policer.
Make `Policer.processNodes` to exclude elements with shortage decreasing
on `NODE_UNDER_MAINTENANCE` status response.
Signed-off-by: Leonard Lyubich <ctulhurider@gmail.com>
Nodes under maintenance SHOULD not respond to object requests. Based on
this, storage node's Policer SHOULD consider such nodes as problem ones.
However, to prevent spam with the new replicas, on the contrary, Policer
should consider them normal.
Make `Policer.processNodes` to exclude elements if `IsMaintenance()`
with shortage decreasing.
Signed-off-by: Leonard Lyubich <ctulhurider@gmail.com>
Make `replicator.TaskResult` to accept `netmap.NodeInfo` type instead of
uint64 in order to clarify the meaning and prevent passing the random
numbers.
Signed-off-by: Leonard Lyubich <ctulhurider@gmail.com>
Error checkers now support wrapped errors so there is no need to
explicitly unwrap errors in `Policer`.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
After recent changes in NeoFS SDK Go library session tokens aren't
embedded into `container.Container` and `eacl.Table` structures.
Group value, session token and signature in a structure for container
and eACL.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
If placement contains two vectors with intersecting nodes it was possible to
send the object to the nodes twice.
Also optimizes requests: do not ask about storing the object twice from the
same node.
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
`log.With` is suitable during initialization, but in other places it induces
some overhead, even when branches with logging are not taken.
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
Core changes:
* avoid package-colliding variable naming
* avoid using pointers to IDs where unnecessary
* avoid using `idSDK` import alias pattern
* use `EncodeToString` for protocol string calculation and `String` for
printing
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Helper function `client.IsErrObjectNotFound` doesn't support error
unwrapping, so we need to do it on caller side.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
`Policer` should pass list of selected candidates into `WithNodes`
method of `replicator.Task`. In previous implementation `processNodes`
method passed an opposite list: failed nodes and/or the local one.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
In previous implementation `Policer` considered local object copy as
redundant on processing single placement vector.
Make `Policer` to call redundant copy callback after full placement
processing. Also fix 404 error parsing.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Replace `core/container.ErrNotFound` error returned by `Source.Get`
interface method with `apistatus.ContainerNotFound` status error. This
error is returned by storage node's server as NeoFS API statuses.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Continues replication executed in separate pool of goroutines,
so there is no need in worker to handle replication tasks
asynchronously.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
Some software components regulate the way of working with placement arrays
when a local node enters it. In the previous implementation, the locality
criterion was the correspondence between the announced network address
(group) and the address with which the node was configured. However, by
design, network addresses are not unique identifiers of storage nodes in the
system.
Change comparisons by network addresses to comparisons by keys in all
packages with the logic described above. Implement `netmap.AnnouncedKeys`
interface on `cfg` type in the storage node application.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Make Object Head service to work with `AddressGroup` instead of `Address`
in order to support multiple addresses of the storage node.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Make `LocalAddressSource.LocalAddress` method to return `AddressGroup`. Make
`IsLocalAddress` function to accept parameter of type `AddressGroup`. Adopt
the application code with temporary `GroupFromAddress` helper.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
`network.Address` structure in most cases created once and used read-only.
Replace `AddressFromString` function with `Address.FromString` method with
the same purpose and implementation. Make all libraries to work with value.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Right now we pass redundant copy to callback outside the for-loop through
the helpful boolean variable instead of calling it deeply nested.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Detect redundant local copy of the object in Object Policer. Add redundant
copy callback (`WithRedundantCopyCallback` option). Pass address of the
redundant copy to callback.
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>
Refactored pkg/netmap package provides JSON converters for
NodeInfo and PlacementPolicy structures, that has been used
by client applications.
It also updates Node structure itself so it is a part of
grpc <-> v2 <-> pkg conversion chain.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
Make Policer to call AddTask method of Replicator when an insufficient
number of copies of an object is detected in the container.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Implement Policer service that performs background work to check compliance
with the placement policy for local objects in the container. In the initial
implementation, the selection of the working queue of objects is
simplified, and there is no transfer of the result to the replicator.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
