| 61 | } |
| 62 | |
| 63 | func GetSplitKeys(ctx sqlexec.RestrictedSQLExecutor) int64 { |
| 64 | const defaultSplitKeys = 960000 |
| 65 | varStr := "show config where name = 'coprocessor.region-split-keys' and type = 'tikv'" |
| 66 | rows, fields, err := ctx.ExecRestrictedSQL( |
| 67 | kv.WithInternalSourceType(context.Background(), kv.InternalTxnBR), |
| 68 | nil, |
| 69 | varStr, |
| 70 | ) |
| 71 | if err != nil { |
| 72 | log.Warn("failed to get split keys, use default value", logutil.ShortError(err)) |
| 73 | return defaultSplitKeys |
| 74 | } |
| 75 | if len(rows) == 0 { |
| 76 | // use the default value |
| 77 | return defaultSplitKeys |
| 78 | } |
| 79 | |
| 80 | d := rows[0].GetDatum(3, &fields[3].Column.FieldType) |
| 81 | splitKeysStr, err := d.ToString() |
| 82 | if err != nil { |
| 83 | log.Warn("failed to get split keys, use default value", logutil.ShortError(err)) |
| 84 | return defaultSplitKeys |
| 85 | } |
| 86 | splitKeys, err := strconv.ParseInt(splitKeysStr, 10, 64) |
| 87 | if err != nil { |
| 88 | log.Warn("failed to get split keys, use default value", logutil.ShortError(err)) |
| 89 | return defaultSplitKeys |
| 90 | } |
| 91 | return splitKeys |
| 92 | } |
| 93 | |
| 94 | func GetGcRatio(ctx sqlexec.RestrictedSQLExecutor) (string, error) { |
| 95 | valStr := "show config where name = 'gc.ratio-threshold' and type = 'tikv'" |