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usage.go
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usage.go
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package repository
import (
"fmt"
"strconv"
"github.com/go-redis/redis"
"github.com/gogo/protobuf/proto"
"github.com/pkg/errors"
"github.com/armadaproject/armada/internal/scheduler/schedulerobjects"
"github.com/armadaproject/armada/pkg/api"
)
type Usage struct {
PriorityPerQueue map[string]float64
CurrentUsagePerQueue map[string]float64
}
const (
clusterReportKey = "Cluster:Report"
clusterQueueResourceUsageKey = "Cluster:QueueResourceUsage"
clusterLeasedReportKey = "Cluster:Leased"
clusterPrioritiesPrefix = "Cluster:Priority:"
)
type UsageRepository interface {
GetClusterUsageReports() (map[string]*api.ClusterUsageReport, error)
GetClusterPriority(clusterId string) (map[string]float64, error)
GetClusterPriorities(clusterIds []string) (map[string]map[string]float64, error)
GetClusterLeasedReports() (map[string]*api.ClusterLeasedReport, error)
GetClusterQueueResourceUsage() (map[string]*schedulerobjects.ClusterResourceUsageReport, error)
UpdateCluster(report *api.ClusterUsageReport, priorities map[string]float64) error
UpdateClusterLeased(report *api.ClusterLeasedReport) error
UpdateClusterQueueResourceUsage(cluster string, resourceUsage *schedulerobjects.ClusterResourceUsageReport) error
}
type RedisUsageRepository struct {
db redis.UniversalClient
}
func NewRedisUsageRepository(db redis.UniversalClient) *RedisUsageRepository {
return &RedisUsageRepository{db: db}
}
func (r *RedisUsageRepository) GetClusterUsageReports() (map[string]*api.ClusterUsageReport, error) {
result, err := r.db.HGetAll(clusterReportKey).Result()
if err != nil {
return nil, fmt.Errorf("[RedisUsageRepository.GetClusterUsageReports] error reading from database: %s", err)
}
reports := make(map[string]*api.ClusterUsageReport)
for k, v := range result {
report := &api.ClusterUsageReport{}
err = proto.Unmarshal([]byte(v), report)
if err != nil {
return nil, fmt.Errorf("[RedisUsageRepository.GetClusterUsageReports] error unmarshalling: %s", err)
}
reports[k] = report
}
return reports, nil
}
func (r *RedisUsageRepository) GetClusterLeasedReports() (map[string]*api.ClusterLeasedReport, error) {
result, err := r.db.HGetAll(clusterLeasedReportKey).Result()
if err != nil {
return nil, fmt.Errorf("[RedisUsageRepository.GetClusterLeasedReports] error reading from database: %s", err)
}
reports := make(map[string]*api.ClusterLeasedReport)
for k, v := range result {
report := &api.ClusterLeasedReport{}
err = proto.Unmarshal([]byte(v), report)
if err != nil {
return nil, fmt.Errorf("[RedisUsageRepository.GetClusterLeasedReports] error unmarshalling: %s", err)
}
reports[k] = report
}
return reports, nil
}
func (r *RedisUsageRepository) GetClusterPriority(clusterId string) (map[string]float64, error) {
result, err := r.db.HGetAll(clusterPrioritiesPrefix + clusterId).Result()
if err != nil {
return nil, fmt.Errorf("[RedisUsageRepository.GetClusterPriority] error reading from database: %s", err)
}
rv, err := toFloat64Map(result)
if err != nil {
return nil, fmt.Errorf("[RedisUsageRepository.GetClusterPriority] error converting to Float64: %s", err)
}
return rv, nil
}
// GetClusterPriorities returns a map from clusterId to clusterPriority.
// This method makes a single aggregated call to the database, making this method more efficient
// than calling GetClusterPriority repeatredly.
func (r *RedisUsageRepository) GetClusterPriorities(clusterIds []string) (map[string]map[string]float64, error) {
pipe := r.db.Pipeline()
cmds := make(map[string]*redis.StringStringMapCmd)
for _, id := range clusterIds {
cmds[id] = pipe.HGetAll(clusterPrioritiesPrefix + id)
err := cmds[id].Err()
if err != nil {
return nil, fmt.Errorf("[RedisUsageRepository.GetClusterPriorities] error reading from database: %s", err)
}
}
// For the default pipeline executor, only the first error is returned,
// i.e., commands executed after the erroring command may have also returned an error.
_, err := pipe.Exec()
if err != nil {
return nil, fmt.Errorf("[RedisUsageRepository.GetClusterPriorities] error performing pipelined read from database: %s", err)
}
clusterPriorities := make(map[string]map[string]float64)
for id, cmd := range cmds {
priorities, err := toFloat64Map(cmd.Val())
if err != nil {
return nil, fmt.Errorf("[RedisUsageRepository.GetClusterPriorities] error converting to Float64: %s", err)
}
clusterPriorities[id] = priorities
}
return clusterPriorities, nil
}
func (r *RedisUsageRepository) UpdateCluster(report *api.ClusterUsageReport, priorities map[string]float64) error {
data, err := proto.Marshal(report)
if err != nil {
return fmt.Errorf("[RedisUsageRepository.UpdateCluster] error marshalling report: %s", err)
}
pipe := r.db.TxPipeline()
pipe.HSet(clusterReportKey, report.ClusterId, data)
if len(priorities) > 0 {
untyped := make(map[string]interface{})
for k, v := range priorities {
untyped[k] = v
}
pipe.HMSet(clusterPrioritiesPrefix+report.ClusterId, untyped)
}
_, err = pipe.Exec()
if err != nil {
return fmt.Errorf("[RedisUsageRepository.UpdateCluster] error performing pipelined writes to database: %s", err)
}
return nil
}
// UpdateClusterLeased updates the count of resources leased to a particular cluster.
func (r *RedisUsageRepository) UpdateClusterLeased(report *api.ClusterLeasedReport) error {
data, err := proto.Marshal(report)
if err != nil {
return fmt.Errorf("[RedisUsageRepository.UpdateClusterLeased] error marshalling report: %s", err)
}
_, err = r.db.HSet(clusterLeasedReportKey, report.ClusterId, data).Result()
if err != nil {
return fmt.Errorf("[RedisUsageRepository.UpdateClusterLeased] error writing to database: %s", err)
}
return err
}
func (r *RedisUsageRepository) GetClusterQueueResourceUsage() (map[string]*schedulerobjects.ClusterResourceUsageReport, error) {
result, err := r.db.HGetAll(clusterQueueResourceUsageKey).Result()
if err != nil {
return nil, fmt.Errorf("[RedisUsageRepository.GetClusterQueueResourceUsage] error reading from database: %s", err)
}
reports := make(map[string]*schedulerobjects.ClusterResourceUsageReport)
for k, v := range result {
report := &schedulerobjects.ClusterResourceUsageReport{}
err = proto.Unmarshal([]byte(v), report)
if err != nil {
return nil, fmt.Errorf("[RedisUsageRepository.GetClusterQueueResourceUsage] error unmarshalling: %s", err)
}
reports[k] = report
}
return reports, nil
}
func (r *RedisUsageRepository) UpdateClusterQueueResourceUsage(cluster string, resourceUsage *schedulerobjects.ClusterResourceUsageReport) error {
data, err := proto.Marshal(resourceUsage)
if err != nil {
return errors.WithStack(err)
}
cmd := r.db.HSet(clusterQueueResourceUsageKey, cluster, data)
if cmd.Err() != nil {
return errors.WithStack(cmd.Err())
}
return nil
}
func toFloat64Map(result map[string]string) (map[string]float64, error) {
reports := make(map[string]float64)
for k, v := range result {
priority, err := strconv.ParseFloat(v, 64)
if err != nil {
return nil, fmt.Errorf("[toFloat64Map] error converting %q to Float64: %s", v, err)
}
reports[k] = priority
}
return reports, nil
}