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[#234] services/object: Support netmap epoch and lookup dead in read ops

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Support processing of NetmapEpoch and NetmapLookupDepth X-headers when
processing object read operations. Placement for operations
Get/Head/GetRange/GetRangeHash/Search is built for the epoch specified in
NetmapEpoch X-header (by default latest). Also the specified operations are
processed until success is achieved for network maps from the past up to
NetmapLookupDepth value. Behavior for default values (zero or missing) left
unchanged.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich 2021-01-12 17:55:02 +03:00 • committed by Alex Vanin
parent 2f4d90025f
commit 1e170c3812
22 changed files with 615 additions and 92 deletions
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17
pkg/services/object/get/service.go
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@ -5,6 +5,7 @@ import (
"github.com/nspcc-dev/neofs-api-go/pkg/client"
objectSDK "github.com/nspcc-dev/neofs-api-go/pkg/object"
"github.com/nspcc-dev/neofs-node/pkg/core/netmap"
"github.com/nspcc-dev/neofs-node/pkg/core/object"
"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine"
"github.com/nspcc-dev/neofs-node/pkg/network/cache"
@ -40,7 +41,11 @@ type cfg struct {
}
traverserGenerator interface {
GenerateTraverser(*objectSDK.Address) (*placement.Traverser, error)
GenerateTraverser(*objectSDK.Address, uint64) (*placement.Traverser, error)
}
currentEpochReceiver interface {
currentEpoch() (uint64, error)
}
}
@ -110,3 +115,13 @@ func WithTraverserGenerator(t *util.TraverserGenerator) Option {
c.traverserGenerator = t
}
}
// WithNetMapSource returns option to set network
// map storage to receive current network state.
func WithNetMapSource(nmSrc netmap.Source) Option {
return func(c *cfg) {
c.currentEpochReceiver = &nmSrcWrapper{
nmSrc: nmSrc,
}
}
}