Zhen Ye 61b6ca5b73
enhance: add in mem shard manager (#41749)
issue: #41544

- Implement in-memory shard manager to maintain the shard state at write
ahead.
- Remove all rpc and meta operation at write ahead, make the segment
assignment logic only use wal and memory.
- Refactor global stats management, add node-level flush policy.
- Fix the recovery storage inconsistency bug when graceful close.

Signed-off-by: chyezh <chyezh@outlook.com>
2025-05-13 12:04:56 +08:00

60 lines
2.0 KiB
Go

package stats
import (
"time"
"github.com/cockroachdb/errors"
"github.com/milvus-io/milvus/pkg/v2/util/hardware"
"github.com/milvus-io/milvus/pkg/v2/util/paramtable"
)
// newStatsConfig creates a new config for the stats manager.
func newStatsConfig() statsConfig {
params := paramtable.Get()
memoryTheshold := params.StreamingCfg.FlushMemoryThreshold.GetAsFloat()
hwmThreshold := params.StreamingCfg.FlushGrowingSegmentBytesHwmThreshold.GetAsFloat()
lwmThreshold := params.StreamingCfg.FlushGrowingSegmentBytesLwmThreshold.GetAsFloat()
memory := float64(hardware.GetMemoryCount())
segmentMaxBinlogFileNum := paramtable.Get().DataCoordCfg.SegmentMaxBinlogFileNumber.GetAsInt()
maxLifetime := paramtable.Get().DataCoordCfg.SegmentMaxLifetime.GetAsDuration(time.Second)
maxIdleTime := paramtable.Get().DataCoordCfg.SegmentMaxIdleTime.GetAsDuration(time.Second)
minSizeFromIdleTime := paramtable.Get().DataCoordCfg.SegmentMinSizeFromIdleToSealed.GetAsInt64() * 1024 * 1024
return statsConfig{
maxBinlogFileNum: segmentMaxBinlogFileNum,
memoryThreshold: memoryTheshold,
growingBytesHWM: int64(hwmThreshold * memory),
growingBytesLWM: int64(lwmThreshold * memory),
maxLifetime: maxLifetime,
maxIdleTime: maxIdleTime,
minSizeFromIdleTime: minSizeFromIdleTime,
}
}
// statsConfig is the configuration for the stats manager.
type statsConfig struct {
maxBinlogFileNum int
memoryThreshold float64
growingBytesHWM int64
growingBytesLWM int64
maxLifetime time.Duration
maxIdleTime time.Duration
minSizeFromIdleTime int64
}
// Validate checks if the config is valid.
func (c statsConfig) Validate() error {
if c.memoryThreshold <= 0 ||
c.growingBytesHWM <= 0 ||
c.growingBytesLWM <= 0 ||
c.growingBytesHWM <= c.growingBytesLWM ||
c.maxLifetime <= 0 ||
c.maxIdleTime <= 0 ||
c.minSizeFromIdleTime <= 0 ||
c.maxBinlogFileNum <= 0 {
return errors.Errorf("invalid stats config, cfg: %+v", c)
}
return nil
}