frostfs-node/pkg/services/audit/auditor/por.go

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package auditor
import (
"bytes"
"github.com/nspcc-dev/neofs-api-go/pkg/object"
"github.com/nspcc-dev/neofs-node/pkg/services/object_manager/placement"
"github.com/nspcc-dev/tzhash/tz"
"go.uber.org/zap"
)
func (c *Context) executePoR() {
for i, sg := range c.task.StorageGroupList() {
c.checkStorageGroupPoR(i, sg) // consider parallel it
}
}
func (c *Context) checkStorageGroupPoR(ind int, sg *object.ID) {
storageGroup, err := c.cnrCom.GetSG(c.task, sg) // get storage group
if err != nil {
c.log.Warn("can't get storage group",
zap.Stringer("sgid", sg),
zap.String("error", err.Error()))
return
}
members := storageGroup.Members()
c.sgMembersCache[ind] = members
var (
tzHash []byte
totalSize uint64
)
for i := range members {
objectPlacement, err := c.buildPlacement(members[i])
if err != nil {
c.log.Info("can't build placement for storage group member",
zap.Stringer("sg", sg),
zap.Stringer("member_id", members[i]),
)
continue
}
for _, node := range placement.FlattenNodes(objectPlacement) {
hdr, err := c.cnrCom.GetHeader(c.task, node, members[i])
if err != nil {
c.log.Debug("can't head object",
zap.String("remote_node", node.Address()),
zap.Stringer("oid", members[i]))
continue
}
if len(tzHash) == 0 {
tzHash = hdr.PayloadHomomorphicHash().Sum()
} else {
tzHash, err = tz.Concat([][]byte{
tzHash,
hdr.PayloadHomomorphicHash().Sum(),
})
if err != nil {
c.log.Debug("can't concatenate tz hash",
zap.Stringer("oid", members[i]),
zap.String("error", err.Error()))
break
}
}
totalSize += hdr.PayloadSize()
break
}
}
sizeCheck := storageGroup.ValidationDataSize() == totalSize
tzCheck := bytes.Equal(tzHash, storageGroup.ValidationDataHash().Sum())
if sizeCheck && tzCheck {
c.report.PassedPoR(sg) // write report
} else {
if !sizeCheck {
c.log.Debug("storage group size check failed",
zap.Uint64("expected", storageGroup.ValidationDataSize()),
zap.Uint64("got", totalSize))
}
if !tzCheck {
c.log.Debug("storage group tz hash check failed")
}
c.report.FailedPoR(sg) // write report
}
}