Envoy Filter Only Send one Message per Stream about envoy HOT 3 CLOSED

rm *.log
timeout 200 bash -c "seq 1000000000 | xargs -I --  ./scripts/grpc-health.sh >>  grpc-health01.log" &
timeout 200 bash -c "seq 1000000000 | xargs -I --  ./scripts/grpc-health.sh >>  grpc-health02.log" &
timeout 200 bash -c "seq 1000000000 | xargs -I --  ./scripts/grpc-health.sh >>  grpc-health03.log" &
timeout 200 bash -c "seq 1000000000 | xargs -I --  ./scripts/grpc-health.sh >>  grpc-health04.log" &
timeout 200 bash -c "seq 1000000000 | xargs -I --  ./scripts/grpc-health.sh >>  grpc-health05.log" &
timeout 200 bash -c "seq 1000000000 | xargs -I --  ./scripts/grpc-health.sh >>  grpc-health06.log" &
timeout 200 bash -c "seq 1000000000 | xargs -I --  ./scripts/grpc-health.sh >>  grpc-health07.log" &
timeout 200 bash -c "seq 1000000000 | xargs -I --  ./scripts/grpc-health.sh >>  grpc-health08.log" &
timeout 200 bash -c "seq 1000000000 | xargs -I --  ./scripts/grpc-health.sh >>  grpc-health09.log" &
timeout 200 bash -c "seq 1000000000 | xargs -I --  ./scripts/grpc-health.sh >>  grpc-health10.log" &
seq 30 | xargs -I -- bash -c "sleep 10 && cat grpc-health*.log | grep PROCESSED | wc -l && date"  

#!/usr/bin/env bash
# grpcurl load messages
message='
  {
    "requestHeaders": {
      "attributes": {},
      "headers": {
        "headers": [
          {
            "key": ":authority",
            "value": "localhost:9090"
          },
          {
            "key": ":path",
            "value": "/example"
          },
          {
            "key": ":scheme",
            "value": "http"
          },
          {
            "key": ":method",
            "value": "GET"
          },
          {
            "key": "User-Agent",
            "value": "'bot'"
          }
        ]
      }
    }
  }
'
# ensure that each json object is on a single line
# that avoids the error on parsing partial messages during the timeout
line=$(echo "$message" | jq -c)
while true; do
  echo "$line"
done

rm *.log
timeout 200 ./scripts/grpcurl-load-messages.sh | \
  grpcurl -plaintext -d @ "localhost:9090"  envoy.service.ext_proc.v3.ExternalProcessor.Process >> \
  stream_result.log &
 seq 30 | xargs -I -- bash -c "sleep 10 && cat stream_result.log | grep 'PROCESSED' | wc -l && date"