forked from TrueCloudLab/frostfs-node
114 lines
2.6 KiB
Go
114 lines
2.6 KiB
Go
package auditor
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import (
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"bytes"
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"github.com/nspcc-dev/neofs-api-go/pkg/object"
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"github.com/nspcc-dev/neofs-node/pkg/services/object_manager/placement"
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"github.com/nspcc-dev/neofs-node/pkg/util/rand"
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"github.com/nspcc-dev/tzhash/tz"
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"go.uber.org/zap"
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)
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func (c *Context) executePoR() {
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for i, sg := range c.task.StorageGroupList() {
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c.checkStorageGroupPoR(i, sg) // consider parallel it
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}
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c.report.SetPoRCounters(c.porRequests, c.porRetries)
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}
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func (c *Context) checkStorageGroupPoR(ind int, sg *object.ID) {
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storageGroup, err := c.cnrCom.GetSG(c.task, sg) // get storage group
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if err != nil {
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c.log.Warn("can't get storage group",
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zap.Stringer("sgid", sg),
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zap.String("error", err.Error()))
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return
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}
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members := storageGroup.Members()
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c.sgMembersCache[ind] = members
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var (
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tzHash []byte
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totalSize uint64
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)
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for i := range members {
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objectPlacement, err := c.buildPlacement(members[i])
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if err != nil {
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c.log.Info("can't build placement for storage group member",
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zap.Stringer("sg", sg),
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zap.Stringer("member_id", members[i]),
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)
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continue
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}
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flat := placement.FlattenNodes(objectPlacement)
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crand := rand.New() // math/rand with cryptographic source
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crand.Shuffle(len(flat), func(i, j int) {
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flat[i], flat[j] = flat[j], flat[i]
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})
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for i := range flat {
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c.porRequests++
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if i > 0 { // in best case audit get object header on first iteration
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c.porRetries++
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}
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hdr, err := c.cnrCom.GetHeader(c.task, flat[i], members[i], true)
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if err != nil {
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c.log.Debug("can't head object",
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zap.String("remote_node", flat[i].Address()),
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zap.Stringer("oid", members[i]))
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continue
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}
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// update cache for PoR and PDP audit checks
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c.updateHeadResponses(hdr)
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if len(tzHash) == 0 {
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tzHash = hdr.PayloadHomomorphicHash().Sum()
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} else {
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tzHash, err = tz.Concat([][]byte{
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tzHash,
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hdr.PayloadHomomorphicHash().Sum(),
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})
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if err != nil {
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c.log.Debug("can't concatenate tz hash",
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zap.Stringer("oid", members[i]),
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zap.String("error", err.Error()))
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break
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}
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}
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totalSize += hdr.PayloadSize()
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break
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}
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}
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sizeCheck := storageGroup.ValidationDataSize() == totalSize
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tzCheck := bytes.Equal(tzHash, storageGroup.ValidationDataHash().Sum())
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if sizeCheck && tzCheck {
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c.report.PassedPoR(sg) // write report
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} else {
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if !sizeCheck {
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c.log.Debug("storage group size check failed",
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zap.Uint64("expected", storageGroup.ValidationDataSize()),
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zap.Uint64("got", totalSize))
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}
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if !tzCheck {
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c.log.Debug("storage group tz hash check failed")
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}
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c.report.FailedPoR(sg) // write report
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}
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}
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