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Collect Node Info during reachability check if port scan was successful #640

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merged 4 commits into from
Jul 17, 2024
Merged

Collect Node Info during reachability check if port scan was successful #640

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77e4bfd
wip
pschork Jul 15, 2024
d9c30d2
Collect NodeInfo endpoint if port check was successful
pschork Jul 15, 2024
0a27be1
Add timeout to NodeInfo grpc client
pschork Jul 16, 2024
0d02764
Reuse upstream context
pschork Jul 17, 2024
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30 changes: 27 additions & 3 deletions disperser/dataapi/queried_operators_handlers.go
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Original file line number Diff line number Diff line change
Expand Up @@ -7,9 +7,12 @@ import (
"sort"
"time"

"github.com/Layr-Labs/eigenda/api/grpc/node"
"github.com/Layr-Labs/eigenda/core"
"github.com/Layr-Labs/eigensdk-go/logging"
"github.com/gammazero/workerpool"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
)

type OperatorOnlineStatus struct {
Expand Down Expand Up @@ -180,6 +183,11 @@ func (s *server) probeOperatorPorts(ctx context.Context, operatorId string) (*Op
dispersalSocket := operatorSocket.GetDispersalSocket()
dispersalOnline := checkIsOperatorOnline(dispersalSocket, 3, s.logger)

if dispersalOnline {
// collect node info if online
getNodeInfo(ctx, dispersalSocket, operatorId, s.logger)
}

// Create the metadata regardless of online status
portCheckResponse := &OperatorPortCheckResponse{
OperatorId: operatorId,
Expand All @@ -196,9 +204,25 @@ func (s *server) probeOperatorPorts(ctx context.Context, operatorId string) (*Op
return portCheckResponse, nil
}

// method to check if operator is online
// Note: This method is least intrusive way to check if operator is online
// AlternateSolution: Should we add an endpt to check if operator is online?
// query operator host info endpoint if available
func getNodeInfo(ctx context.Context, socket string, operatorId string, logger logging.Logger) {
conn, err := grpc.Dial(socket, grpc.WithTransportCredentials(insecure.NewCredentials()))
if err != nil {
logger.Error("Failed to dial grpc operator socket", "operatorId", operatorId, "socket", socket, "error", err)
return
}
defer conn.Close()
client := node.NewDispersalClient(conn)
reply, err := client.NodeInfo(ctx, &node.NodeInfoRequest{})
if err != nil {
logger.Info("NodeInfo", "operatorId", operatorId, "semver", "unknown")
return
}

logger.Info("NodeInfo", "operatorId", operatorId, "semver", reply.Semver, "os", reply.Os, "arch", reply.Arch, "numCpu", reply.NumCpu, "memBytes", reply.MemBytes)
}

// method to check if operator is online via socket dial
func checkIsOperatorOnline(socket string, timeoutSecs int, logger logging.Logger) bool {
if !ValidOperatorIP(socket, logger) {
logger.Error("port check blocked invalid operator IP", "socket", socket)
Expand Down
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