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fix(restore): Handle MaxUid=0 appropriately #7258

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merged 1 commit into from
Jan 8, 2021
Merged

fix(restore): Handle MaxUid=0 appropriately #7258

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21 changes: 11 additions & 10 deletions ee/backup/run.go
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Original file line number Diff line number Diff line change
Expand Up @@ -15,10 +15,11 @@ package backup
import (
"context"
"fmt"
"google.golang.org/grpc/credentials"
"os"
"time"

"google.golang.org/grpc/credentials"

"github.com/dgraph-io/dgraph/ee/enc"
"github.com/dgraph-io/dgraph/protos/pb"
"github.com/dgraph-io/dgraph/worker"
Expand Down Expand Up @@ -236,19 +237,19 @@ func runRestoreCmd() error {
ctx, cancelTs := context.WithTimeout(context.Background(), time.Minute)
defer cancelTs()

_, err := zc.Timestamps(ctx, &pb.Num{Val: result.Version})
if err != nil {
if _, err := zc.Timestamps(ctx, &pb.Num{Val: result.Version}); err != nil {
fmt.Printf("Failed to assign timestamp %d in Zero: %v", result.Version, err)
return err
}

ctx, cancelUid := context.WithTimeout(context.Background(), time.Minute)
defer cancelUid()

_, err = zc.AssignUids(ctx, &pb.Num{Val: result.MaxLeaseUid})
if err != nil {
fmt.Printf("Failed to assign maxLeaseId %d in Zero: %v\n", result.MaxLeaseUid, err)
return err
// MaxLeaseUid can be zero if the backup was taken on an empty DB.
if result.MaxLeaseUid > 0 {
ctx, cancelUid := context.WithTimeout(context.Background(), time.Minute)
defer cancelUid()
if _, err = zc.AssignUids(ctx, &pb.Num{Val: result.MaxLeaseUid}); err != nil {
fmt.Printf("Failed to assign maxLeaseId %d in Zero: %v\n", result.MaxLeaseUid, err)
return err
}
}
}

Expand Down