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[Prism] Set keepalive policy for grpc server.#37021

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Merged
shunping merged 2 commits into from
Dec 8, 2025
Merged

[Prism] Set keepalive policy for grpc server. #37021

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b28cc6f
Set keepalive policy for prism grpc server.
shunping Dec 6, 2025
3aa6714
Merge branch 'master' into prism-grpc-server-options
shunping Dec 8, 2025
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5 changes: 5 additions & 0 deletions sdks/go/pkg/beam/runners/prism/internal/jobservices/server.go
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Original file line numberDiff line numberDiff line change
Expand Up@@ -30,6 +30,7 @@ import (
jobpb "github.com/apache/beam/sdks/v2/go/pkg/beam/model/jobmanagement_v1"
"github.com/apache/beam/sdks/v2/go/pkg/beam/runners/prism/internal/worker"
"google.golang.org/grpc"
"google.golang.org/grpc/keepalive"
)

type Server struct {
Expand DownExpand Up@@ -80,6 +81,10 @@ func NewServer(port int, execute func(*Job)) *Server {
s.logger.Info("Serving JobManagement", slog.String("endpoint", s.Endpoint()))
opts := []grpc.ServerOption{
grpc.MaxRecvMsgSize(math.MaxInt32),
grpc.KeepaliveEnforcementPolicy(keepalive.EnforcementPolicy{
MinTime: 20 * time.Second, // Minimum duration a client should wait before sending a keepalive ping

@shunpingshunpingDec 6, 2025

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The 20-second min time matches the option set in the python client:

https://github.com/liferoad/beam/blob/782a0e7cc26e582c31534253fa5a00018bce4c38/sdks/python/apache_beam/runners/worker/channel_factory.py#L27

PermitWithoutStream: true, // Allow pings even if there are no active streams
}),
}
s.server = grpc.NewServer(opts...)
jobpb.RegisterJobServiceServer(s.server, s)
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