// loadAppliedIndex returns the Raft applied index and the lease applied index.
func loadAppliedIndex(
ctx context.Context, reader engine.Reader, rangeID roachpb.RangeID,
) (uint64, uint64, error) {
var appliedIndex uint64
v, _, err := engine.MVCCGet(ctx, reader, keys.RaftAppliedIndexKey(rangeID),
hlc.ZeroTimestamp, true, nil)
if err != nil {
return 0, 0, err
}
if v != nil {
int64AppliedIndex, err := v.GetInt()
if err != nil {
return 0, 0, err
}
appliedIndex = uint64(int64AppliedIndex)
}
// TODO(tschottdorf): code duplication.
var leaseAppliedIndex uint64
v, _, err = engine.MVCCGet(ctx, reader, keys.LeaseAppliedIndexKey(rangeID),
hlc.ZeroTimestamp, true, nil)
if err != nil {
return 0, 0, err
}
if v != nil {
int64LeaseAppliedIndex, err := v.GetInt()
if err != nil {
return 0, 0, err
}
leaseAppliedIndex = uint64(int64LeaseAppliedIndex)
}
return appliedIndex, leaseAppliedIndex, nil
}
func setAppliedIndex(
ctx context.Context,
eng engine.ReadWriter,
ms *enginepb.MVCCStats,
rangeID roachpb.RangeID,
appliedIndex,
leaseAppliedIndex uint64,
) error {
var value roachpb.Value
value.SetInt(int64(appliedIndex))
if err := engine.MVCCPut(ctx, eng, ms,
keys.RaftAppliedIndexKey(rangeID),
hlc.ZeroTimestamp,
value,
nil /* txn */); err != nil {
return err
}
value.SetInt(int64(leaseAppliedIndex))
return engine.MVCCPut(ctx, eng, ms,
keys.LeaseAppliedIndexKey(rangeID),
hlc.ZeroTimestamp,
value,
nil /* txn */)
}
// Calculate the size (MVCCStats.SysBytes) of the {raft,lease} applied index
// keys/values.
func calcAppliedIndexSysBytes(
rangeID roachpb.RangeID, appliedIndex, leaseAppliedIndex uint64,
) int64 {
return int64(engine.MakeMVCCMetadataKey(keys.RaftAppliedIndexKey(rangeID)).EncodedSize() +
engine.MakeMVCCMetadataKey(keys.LeaseAppliedIndexKey(rangeID)).EncodedSize() +
inlineValueIntEncodedSize(int64(appliedIndex)) +
inlineValueIntEncodedSize(int64(leaseAppliedIndex)))
}
// createRangeData creates sample range data in all possible areas of
// the key space. Returns a slice of the encoded keys of all created
// data.
func createRangeData(t *testing.T, r *Replica) []engine.MVCCKey {
ts0 := hlc.ZeroTimestamp
ts := hlc.Timestamp{WallTime: 1}
desc := r.Desc()
keyTSs := []struct {
key roachpb.Key
ts hlc.Timestamp
}{
{keys.AbortCacheKey(r.RangeID, testTxnID), ts0},
{keys.AbortCacheKey(r.RangeID, testTxnID2), ts0},
{keys.RangeFrozenStatusKey(r.RangeID), ts0},
{keys.RangeLastGCKey(r.RangeID), ts0},
{keys.RaftAppliedIndexKey(r.RangeID), ts0},
{keys.RaftTruncatedStateKey(r.RangeID), ts0},
{keys.RangeLeaseKey(r.RangeID), ts0},
{keys.LeaseAppliedIndexKey(r.RangeID), ts0},
{keys.RangeStatsKey(r.RangeID), ts0},
{keys.RangeTxnSpanGCThresholdKey(r.RangeID), ts0},
{keys.RaftHardStateKey(r.RangeID), ts0},
{keys.RaftLastIndexKey(r.RangeID), ts0},
{keys.RaftLogKey(r.RangeID, 1), ts0},
{keys.RaftLogKey(r.RangeID, 2), ts0},
{keys.RangeLastReplicaGCTimestampKey(r.RangeID), ts0},
{keys.RangeLastVerificationTimestampKeyDeprecated(r.RangeID), ts0},
{keys.RangeDescriptorKey(desc.StartKey), ts},
{keys.TransactionKey(roachpb.Key(desc.StartKey), uuid.MakeV4()), ts0},
{keys.TransactionKey(roachpb.Key(desc.StartKey.Next()), uuid.MakeV4()), ts0},
{keys.TransactionKey(fakePrevKey(desc.EndKey), uuid.MakeV4()), ts0},
// TODO(bdarnell): KeyMin.Next() results in a key in the reserved system-local space.
// Once we have resolved https://github.com/cockroachdb/cockroach/issues/437,
// replace this with something that reliably generates the first valid key in the range.
//{r.Desc().StartKey.Next(), ts},
// The following line is similar to StartKey.Next() but adds more to the key to
// avoid falling into the system-local space.
{append(append([]byte{}, desc.StartKey...), '\x02'), ts},
{fakePrevKey(r.Desc().EndKey), ts},
}
keys := []engine.MVCCKey{}
for _, keyTS := range keyTSs {
if err := engine.MVCCPut(context.Background(), r.store.Engine(), nil, keyTS.key, keyTS.ts, roachpb.MakeValueFromString("value"), nil); err != nil {
t.Fatal(err)
}
keys = append(keys, engine.MVCCKey{Key: keyTS.key, Timestamp: keyTS.ts})
}
return keys
}