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logging.go
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logging.go
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// Copyright 2020 PingCAP, Inc. Licensed under Apache-2.0.
package logutil
import (
"encoding/hex"
"fmt"
"strings"
"github.com/google/uuid"
"github.com/pingcap/kvproto/pkg/backup"
"github.com/pingcap/kvproto/pkg/import_sstpb"
"github.com/pingcap/kvproto/pkg/metapb"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
"github.com/pingcap/br/pkg/redact"
)
// AbbreviatedArrayMarshaler abbreviates an array of elements.
type AbbreviatedArrayMarshaler []string
// MarshalLogArray implements zapcore.ArrayMarshaler.
func (abb AbbreviatedArrayMarshaler) MarshalLogArray(encoder zapcore.ArrayEncoder) error {
if len(abb) <= 4 {
for _, e := range abb {
encoder.AppendString(e)
}
} else {
total := len(abb)
encoder.AppendString(abb[0])
encoder.AppendString(fmt.Sprintf("(skip %d)", total-2))
encoder.AppendString(abb[total-1])
}
return nil
}
// AbbreviatedArray constructs a field that abbreviates an array of elements.
func AbbreviatedArray(
key string, elements interface{}, marshalFunc func(interface{}) []string,
) zap.Field {
return zap.Array(key, AbbreviatedArrayMarshaler(marshalFunc(elements)))
}
type zapFileMarshaler struct{ *backup.File }
func (file zapFileMarshaler) MarshalLogObject(enc zapcore.ObjectEncoder) error {
enc.AddString("name", file.GetName())
enc.AddString("CF", file.GetCf())
enc.AddString("sha256", hex.EncodeToString(file.GetSha256()))
enc.AddString("startKey", redact.Key(file.GetStartKey()))
enc.AddString("endKey", redact.Key(file.GetEndKey()))
enc.AddUint64("startVersion", file.GetStartVersion())
enc.AddUint64("endVersion", file.GetEndVersion())
enc.AddUint64("totalKvs", file.GetTotalKvs())
enc.AddUint64("totalBytes", file.GetTotalBytes())
enc.AddUint64("CRC64Xor", file.GetCrc64Xor())
return nil
}
type zapFilesMarshaler []*backup.File
func (fs zapFilesMarshaler) MarshalLogObject(encoder zapcore.ObjectEncoder) error {
total := len(fs)
encoder.AddInt("total", total)
elements := make([]string, 0, total)
for _, f := range fs {
elements = append(elements, f.GetName())
}
_ = encoder.AddArray("files", AbbreviatedArrayMarshaler(elements))
totalKVs := uint64(0)
totalBytes := uint64(0)
totalSize := uint64(0)
for _, file := range fs {
totalKVs += file.GetTotalKvs()
totalBytes += file.GetTotalBytes()
totalSize += file.GetSize_()
}
encoder.AddUint64("totalKVs", totalKVs)
encoder.AddUint64("totalBytes", totalBytes)
encoder.AddUint64("totalSize", totalSize)
return nil
}
// File make the zap fields for a file.
func File(file *backup.File) zap.Field {
return zap.Object("file", zapFileMarshaler{file})
}
// Files make the zap field for a set of file.
func Files(fs []*backup.File) zap.Field {
return zap.Object("files", zapFilesMarshaler(fs))
}
type zapRewriteRuleMarshaler struct{ *import_sstpb.RewriteRule }
func (rewriteRule zapRewriteRuleMarshaler) MarshalLogObject(enc zapcore.ObjectEncoder) error {
enc.AddString("oldKeyPrefix", hex.EncodeToString(rewriteRule.GetOldKeyPrefix()))
enc.AddString("newKeyPrefix", hex.EncodeToString(rewriteRule.GetNewKeyPrefix()))
enc.AddUint64("newTimestamp", rewriteRule.GetNewTimestamp())
return nil
}
// RewriteRule make the zap fields for a rewrite rule.
func RewriteRule(rewriteRule *import_sstpb.RewriteRule) zap.Field {
return zap.Object("rewriteRule", zapRewriteRuleMarshaler{rewriteRule})
}
type zapMarshalRegionMarshaler struct{ *metapb.Region }
func (region zapMarshalRegionMarshaler) MarshalLogObject(enc zapcore.ObjectEncoder) error {
peers := make([]string, 0, len(region.GetPeers()))
for _, peer := range region.GetPeers() {
peers = append(peers, peer.String())
}
enc.AddUint64("ID", region.Id)
enc.AddString("startKey", redact.Key(region.GetStartKey()))
enc.AddString("endKey", redact.Key(region.GetEndKey()))
enc.AddString("epoch", region.GetRegionEpoch().String())
enc.AddString("peers", strings.Join(peers, ","))
return nil
}
// Region make the zap fields for a region.
func Region(region *metapb.Region) zap.Field {
return zap.Object("region", zapMarshalRegionMarshaler{region})
}
// Leader make the zap fields for a peer.
// nolint:interfacer
func Leader(peer *metapb.Peer) zap.Field {
return zap.String("leader", peer.String())
}
type zapSSTMetaMarshaler struct{ *import_sstpb.SSTMeta }
func (sstMeta zapSSTMetaMarshaler) MarshalLogObject(enc zapcore.ObjectEncoder) error {
enc.AddString("CF", sstMeta.GetCfName())
enc.AddBool("endKeyExclusive", sstMeta.EndKeyExclusive)
enc.AddUint32("CRC32", sstMeta.Crc32)
enc.AddUint64("length", sstMeta.Length)
enc.AddUint64("regionID", sstMeta.RegionId)
enc.AddString("regionEpoch", sstMeta.RegionEpoch.String())
enc.AddString("startKey", redact.Key(sstMeta.GetRange().GetStart()))
enc.AddString("endKey", redact.Key(sstMeta.GetRange().GetEnd()))
sstUUID, err := uuid.FromBytes(sstMeta.GetUuid())
if err != nil {
enc.AddString("UUID", fmt.Sprintf("invalid UUID %s", hex.EncodeToString(sstMeta.GetUuid())))
} else {
enc.AddString("UUID", sstUUID.String())
}
return nil
}
// SSTMeta make the zap fields for a SST meta.
func SSTMeta(sstMeta *import_sstpb.SSTMeta) zap.Field {
return zap.Object("sstMeta", zapSSTMetaMarshaler{sstMeta})
}
type zapKeysMarshaler [][]byte
func (keys zapKeysMarshaler) MarshalLogObject(encoder zapcore.ObjectEncoder) error {
total := len(keys)
encoder.AddInt("total", total)
elements := make([]string, 0, total)
for _, k := range keys {
elements = append(elements, redact.Key(k))
}
_ = encoder.AddArray("keys", AbbreviatedArrayMarshaler(elements))
return nil
}
// Key constructs a field that carries upper hex format key.
func Key(fieldKey string, key []byte) zap.Field {
return zap.String(fieldKey, redact.Key(key))
}
// Keys constructs a field that carries upper hex format keys.
func Keys(keys [][]byte) zap.Field {
return zap.Object("keys", zapKeysMarshaler(keys))
}
// ShortError make the zap field to display error without verbose representation (e.g. the stack trace).
func ShortError(err error) zap.Field {
return zap.String("error", err.Error())
}