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Feat: Add rate limit to Redis client #268

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merged 8 commits into from
Oct 29, 2023
Merged

Feat: Add rate limit to Redis client #268

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aed8bb3
Add rate limiting bucket to skip Redis if we have errored often
Garbett1 Oct 29, 2023
854d493
Puku format
Garbett1 Oct 29, 2023
e459164
Add x/time to go.mod
Garbett1 Oct 29, 2023
7b307e5
Add limit in more locations
Garbett1 Oct 29, 2023
628d532
Don't mess up the go.mod
Garbett1 Oct 29, 2023
742a8a9
Remove the limit on the write
Garbett1 Oct 29, 2023
d88d714
Avoid any leak of the digest proto
Garbett1 Oct 29, 2023
5d5c7f7
Bump version
Garbett1 Oct 29, 2023
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2 changes: 1 addition & 1 deletion cli/BUILD
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,6 @@ go_test(
srcs = ["cli_test.go"],
deps = [
":cli",
"///third_party/go/github.com_stretchr_testify//assert",
"//third_party/go:testify",
],
)
7 changes: 2 additions & 5 deletions elan/rpc/BUILD
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,6 @@ go_library(
"///third_party/go/github.com_klauspost_compress//zstd",
"///third_party/go/github.com_peterebden_go-cli-init_v4//logging",
"///third_party/go/github.com_prometheus_client_golang//prometheus",
"//proto/purity",
"///third_party/go/gocloud.dev//blob",
"///third_party/go/gocloud.dev//blob/fileblob",
"///third_party/go/gocloud.dev//blob/gcsblob",
Expand All @@ -32,10 +31,9 @@ go_library(
"///third_party/go/google.golang.org_api//googleapi",
"///third_party/go/google.golang.org_genproto_googleapis_bytestream//:bytestream",
"///third_party/go/google.golang.org_genproto_googleapis_rpc//status",
"///third_party/go/google.golang.org_grpc//codes",
"///third_party/go/google.golang.org_grpc//health/grpc_health_v1",
"///third_party/go/google.golang.org_grpc//status",
"//grpcutil",
"//proto/purity",
"//rexclient",
"//third_party/go:grpc",
],
Expand All @@ -48,10 +46,9 @@ go_test(
deps = [
":rpc",
"///third_party/go/github.com_klauspost_compress//zstd",
"///third_party/go/github.com_stretchr_testify//assert",
"///third_party/go/github.com_stretchr_testify//require",
"///third_party/go/google.golang.org_genproto_googleapis_bytestream//:bytestream",
"//grpcutil",
"//third_party/go:testify",
],
)

Expand Down
2 changes: 1 addition & 1 deletion flair/rpc/BUILD
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Expand Up @@ -10,13 +10,13 @@ go_library(
"///third_party/go/github.com_golang_protobuf//proto",
"///third_party/go/github.com_peterebden_go-cli-init_v4//logging",
"///third_party/go/github.com_peterebden_go-sri//:go-sri",
"//proto/purity",
"///third_party/go/golang.org_x_sync//errgroup",
"///third_party/go/google.golang.org_genproto_googleapis_bytestream//:bytestream",
"///third_party/go/google.golang.org_grpc//health/grpc_health_v1",
"///third_party/go/google.golang.org_grpc//metadata",
"//flair/trie",
"//grpcutil",
"//proto/purity",
"//rexclient",
"//third_party/go:grpc",
],
Expand Down
2 changes: 1 addition & 1 deletion flair/trie/BUILD
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Expand Up @@ -10,9 +10,9 @@ go_library(
"///third_party/go/github.com_bazelbuild_remote-apis//build/bazel/remote/execution/v2",
"///third_party/go/github.com_hashicorp_go-multierror//:go-multierror",
"///third_party/go/github.com_peterebden_go-cli-init_v4//logging",
"//proto/purity",
"///third_party/go/google.golang.org_genproto_googleapis_bytestream//:bytestream",
"///third_party/go/google.golang.org_grpc//health/grpc_health_v1",
"//proto/purity",
"//third_party/go:grpc",
],
)
Expand Down
3 changes: 1 addition & 2 deletions go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@ require (
golang.org/x/crypto v0.1.0
golang.org/x/exp v0.0.0-20230425010034-47ecfdc1ba53
golang.org/x/sync v0.1.0
golang.org/x/time v0.3.0
google.golang.org/api v0.114.0
google.golang.org/genproto v0.0.0-20230530153820-e85fd2cbaebc
google.golang.org/genproto/googleapis/bytestream v0.0.0-20230530153820-e85fd2cbaebc
Expand All @@ -56,7 +57,6 @@ require (
github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e // indirect
github.com/golang/snappy v0.0.3 // indirect
github.com/google/go-cmp v0.5.9 // indirect
github.com/google/s2a-go v0.1.4 // indirect
github.com/google/uuid v1.3.0 // indirect
github.com/google/wire v0.4.0 // indirect
github.com/googleapis/enterprise-certificate-proxy v0.2.3 // indirect
Expand All @@ -73,7 +73,6 @@ require (
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/prometheus/client_model v0.3.0 // indirect
github.com/prometheus/procfs v0.8.0 // indirect
github.com/stretchr/objx v0.5.0 // indirect
github.com/thought-machine/go-flags v1.5.0 // indirect
go.opencensus.io v0.24.0 // indirect
go.opentelemetry.io/otel v0.20.0 // indirect
Expand Down
32 changes: 2 additions & 30 deletions go.sum
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4 changes: 1 addition & 3 deletions grpcutil/BUILD
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Expand Up @@ -8,16 +8,14 @@ go_library(
"///third_party/go/github.com_mostynb_go-grpc-compression//zstd",
"///third_party/go/github.com_peterebden_go-cli-init_v4//logging",
"///third_party/go/github.com_prometheus_client_golang//prometheus",
"///third_party/go/google.golang.org_grpc//:grpc",
"///third_party/go/google.golang.org_grpc//codes",
"///third_party/go/google.golang.org_grpc//credentials",
"///third_party/go/google.golang.org_grpc//encoding/gzip",
"///third_party/go/google.golang.org_grpc//grpclog",
"///third_party/go/google.golang.org_grpc//health",
"///third_party/go/google.golang.org_grpc//health/grpc_health_v1",
"///third_party/go/google.golang.org_grpc//metadata",
"///third_party/go/google.golang.org_grpc//reflection",
"///third_party/go/google.golang.org_grpc//status",
"///third_party/go/gopkg.in_op_go-logging.v1//:go-logging.v1",
"//third_party/go:grpc",
],
)
2 changes: 1 addition & 1 deletion lucidity/rpc/BUILD
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Expand Up @@ -22,7 +22,7 @@ go_test(
resources = glob(["static/*.*"]),
deps = [
":rpc",
"///third_party/go/github.com_stretchr_testify//assert",
"//proto/lucidity",
"//third_party/go:testify",
],
)
1 change: 0 additions & 1 deletion mettle/BUILD
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Original file line number Diff line number Diff line change
Expand Up @@ -22,4 +22,3 @@ sh_cmd(
"//sandbox:alt_sandbox",
],
)

11 changes: 3 additions & 8 deletions mettle/api/BUILD
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Expand Up @@ -11,15 +11,13 @@ go_library(
"///third_party/go/github.com_golang_protobuf//ptypes",
"///third_party/go/github.com_peterebden_go-cli-init_v4//logging",
"///third_party/go/github.com_prometheus_client_golang//prometheus",
"//proto/mettle",
"///third_party/go/gocloud.dev//pubsub",
"///third_party/go/google.golang.org_genproto//googleapis/longrunning",
"///third_party/go/google.golang.org_genproto_googleapis_rpc//status",
"///third_party/go/google.golang.org_grpc//codes",
"///third_party/go/google.golang.org_grpc//metadata",
"///third_party/go/google.golang.org_grpc//status",
"//grpcutil",
"//mettle/common",
"//proto/mettle",
"//rexclient",
"//third_party/go:grpc",
],
Expand All @@ -33,16 +31,13 @@ go_test(
"///third_party/go/github.com_bazelbuild_remote-apis//build/bazel/remote/execution/v2",
"///third_party/go/github.com_golang_protobuf//proto",
"///third_party/go/github.com_golang_protobuf//ptypes",
"///third_party/go/github.com_stretchr_testify//assert",
"///third_party/go/github.com_stretchr_testify//require",
"//proto/mettle",
"///third_party/go/gocloud.dev//pubsub",
"///third_party/go/google.golang.org_genproto//googleapis/longrunning",
"///third_party/go/google.golang.org_genproto_googleapis_bytestream//:bytestream",
"///third_party/go/google.golang.org_grpc//codes",
"///third_party/go/google.golang.org_grpc//status",
"//grpcutil",
"//mettle/common",
"//proto/mettle",
"//third_party/go:grpc",
"//third_party/go:testify",
],
)
5 changes: 2 additions & 3 deletions mettle/common/BUILD
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Expand Up @@ -11,9 +11,8 @@ go_library(
"///third_party/go/gocloud.dev//pubsub/gcppubsub",
"///third_party/go/google.golang.org_genproto//googleapis/longrunning",
"///third_party/go/google.golang.org_genproto//googleapis/pubsub/v1",
"///third_party/go/google.golang.org_grpc//codes",
"///third_party/go/google.golang.org_grpc//status",
"//mettle/mempubsub",
"//third_party/go:grpc",
],
)

Expand All @@ -22,6 +21,6 @@ go_test(
srcs = ["common_test.go"],
deps = [
":common",
"///third_party/go/github.com_stretchr_testify//assert",
"//third_party/go:testify",
],
)
8 changes: 4 additions & 4 deletions mettle/worker/BUILD
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Expand Up @@ -23,20 +23,20 @@ go_library(
"///third_party/go/github.com_prometheus_client_golang//prometheus/push",
"///third_party/go/github.com_prometheus_common//expfmt",
"///third_party/go/github.com_shirou_gopsutil//mem",
"//proto/lucidity",
"//third_party/proto/resourceusage",
"///third_party/go/gocloud.dev//pubsub",
"///third_party/go/golang.org_x_sync//errgroup",
"///third_party/go/golang.org_x_time//rate",
"///third_party/go/google.golang.org_genproto//googleapis/pubsub/v1",
"///third_party/go/google.golang.org_genproto_googleapis_rpc//status",
"///third_party/go/google.golang.org_grpc//codes",
"///third_party/go/google.golang.org_grpc//status",
"//cli",
"//elan/rpc",
"//grpcutil",
"//mettle/common",
"//proto/lucidity",
"//rexclient",
"//third_party/go:golang-protobuf",
"//third_party/go:grpc",
"//third_party/proto/cas",
"//third_party/proto/resourceusage",
],
)
35 changes: 24 additions & 11 deletions mettle/worker/redis.go
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import (
"context"
"crypto/tls"
"crypto/x509"
"golang.org/x/time/rate"
"os"
"time"

Expand Down Expand Up @@ -71,8 +72,9 @@ func newRedisClient(client elan.Client, url, readURL, password, caFile string, u
elan: client,
redis: primaryClient,
readRedis: readClient,
timeout: 10 * time.Second,
timeout: 1 * time.Second,
maxSize: 200 * 1012, // 200 Kelly-Bootle standard units
limiter: rate.NewLimiter(rate.Every(time.Second*10), 10),
}
}

Expand All @@ -82,6 +84,7 @@ type redisClient struct {
readRedis *redis.Client
timeout time.Duration
maxSize int64
limiter *rate.Limiter
}

func (r *redisClient) Healthcheck() error {
Expand All @@ -91,23 +94,33 @@ func (r *redisClient) Healthcheck() error {
func (r *redisClient) ReadBlob(dg *pb.Digest) ([]byte, error) {
ctx, cancel := context.WithTimeout(context.Background(), r.timeout)
defer cancel()
cmd := r.readRedis.Get(ctx, dg.Hash)
if err := cmd.Err(); err == nil {
blob, _ := cmd.Bytes()
return blob, nil
} else if err != redis.Nil {
log.Warning("Failed to read blob from Redis: %s", err)

if r.limiter.Allow() {
cmd := r.readRedis.Get(ctx, dg.Hash)
if err := cmd.Err(); err == nil {
blob, _ := cmd.Bytes()
return blob, nil
} else if err != redis.Nil {
log.Warningf("Failed to read blob from Redis: %s", err)
r.limiter.Reserve()
}
} else {
log.Warningf("limiter error rate exceeded, skipping Redis lookup")
}
// If we get here, the blob didn't exist. Download it then write back to Redis.
blob, err := r.elan.ReadBlob(dg)
if err != nil {
return nil, err
}
if dg.SizeBytes < r.maxSize {
ctx, cancel = context.WithTimeout(context.Background(), r.timeout)
defer cancel()
if cmd := r.redis.Set(ctx, dg.Hash, blob, 0); cmd.Val() != "OK" {
log.Warning("Failed to set blob in Redis: %s", cmd.Err())
if r.limiter.Allow() {
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go func() {
ctx, cancel = context.WithTimeout(context.Background(), r.timeout)
defer cancel()
if cmd := r.redis.Set(ctx, dg.Hash, blob, 0); cmd.Val() != "OK" {
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log.Warning("Failed to set blob in Redis: %s", cmd.Err())
}
}()
}
}
return blob, nil
Expand Down
2 changes: 1 addition & 1 deletion purity/gc/BUILD
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Expand Up @@ -14,8 +14,8 @@ go_library(
"///third_party/go/github.com_golang_protobuf//proto",
"///third_party/go/github.com_hashicorp_go-multierror//:go-multierror",
"///third_party/go/github.com_peterebden_go-cli-init_v4//logging",
"//proto/purity",
"///third_party/go/golang.org_x_crypto//ssh/terminal",
"//proto/purity",
"//rexclient",
"//third_party/go:grpc",
],
Expand Down
2 changes: 1 addition & 1 deletion rexclient/BUILD
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Expand Up @@ -23,6 +23,6 @@ go_test(
":rexclient",
"///third_party/go/github.com_bazelbuild_remote-apis-sdks//go/pkg/digest",
"///third_party/go/github.com_bazelbuild_remote-apis//build/bazel/remote/execution/v2",
"///third_party/go/github.com_stretchr_testify//assert",
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"//third_party/go:testify",
],
)
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