refactor(framework) Add enter and leave event for Simulation and ServerApp

src/py/flwr/client/supernode/app.py

@@ -114,9 +114,8 @@ def run_client_app() -> None:
     event(EventType.RUN_CLIENT_APP_ENTER)
     log(
         ERROR,
-        "The command `flower-client-app` has been replaced by `flower-supernode`.",
+        "The command `flower-client-app` has been replaced by `flwr run`.",
     )
-    log(INFO, "Execute `flower-supernode --help` to learn how to use it.")
     register_exit_handlers(event_type=EventType.RUN_CLIENT_APP_LEAVE)
 
 

src/py/flwr/common/telemetry.py

@@ -151,6 +151,16 @@ def _generate_next_value_(name: str, start: int, count: int, last_values: list[A
 
     # Not yet implemented
 
+    # --- `flwr-*` commands ------------------------------------------------------------
+
+    # CLI: flwr-simulation
+    FLWR_SIMULATION_RUN_ENTER = auto()
+    FLWR_SIMULATION_RUN_LEAVE = auto()
+
+    # CLI: flwr-serverapp
+    FLWR_SERVERAPP_RUN_ENTER = auto()
+    FLWR_SERVERAPP_RUN_LEAVE = auto()
+
     # --- Simulation Engine ------------------------------------------------------------
 
     # CLI: flower-simulation
@@ -171,12 +181,12 @@ def _generate_next_value_(name: str, start: int, count: int, last_values: list[A
     RUN_SUPERNODE_ENTER = auto()
     RUN_SUPERNODE_LEAVE = auto()
 
-    # CLI: `flower-server-app`
+    # --- DEPRECATED -------------------------------------------------------------------
+
+    # [DEPRECATED] CLI: `flower-server-app`
     RUN_SERVER_APP_ENTER = auto()
     RUN_SERVER_APP_LEAVE = auto()
 
-    # --- DEPRECATED -------------------------------------------------------------------
-
     # [DEPRECATED] CLI: `flower-client-app`
     RUN_CLIENT_APP_ENTER = auto()
     RUN_CLIENT_APP_LEAVE = auto()

src/py/flwr/server/run_serverapp.py

@@ -15,12 +15,12 @@
 """Run ServerApp."""
 
 
-import sys
 from logging import DEBUG, ERROR
 from typing import Optional
 
-from flwr.common import Context
-from flwr.common.logger import log, warn_unsupported_feature
+from flwr.common import Context, EventType, event
+from flwr.common.exit_handlers import register_exit_handlers
+from flwr.common.logger import log
 from flwr.common.object_ref import load_app
 
 from .driver import Driver
@@ -66,12 +66,11 @@ def _load() -> ServerApp:
     return context
 
 
-# pylint: disable-next=too-many-branches,too-many-statements,too-many-locals
 def run_server_app() -> None:
     """Run Flower server app."""
-    warn_unsupported_feature(
-        "The command `flower-server-app` is deprecated and no longer in use. "
-        "Use the `flwr-serverapp` exclusively instead."
+    event(EventType.RUN_SERVER_APP_ENTER)
+    log(
+        ERROR,
+        "The command `flower-server-app` has been replaced by `flwr run`.",
     )
-    log(ERROR, "`flower-server-app` used.")
-    sys.exit()
+    register_exit_handlers(event_type=EventType.RUN_SERVER_APP_LEAVE)

src/py/flwr/server/serverapp/app.py

@@ -25,6 +25,7 @@
 
 from flwr.cli.config_utils import get_fab_metadata
 from flwr.cli.install import install_from_fab
+from flwr.cli.utils import get_sha256_hash
 from flwr.common.args import add_args_flwr_app_common
 from flwr.common.config import (
     get_flwr_dir,
@@ -51,6 +52,7 @@
     run_from_proto,
     run_status_to_proto,
 )
+from flwr.common.telemetry import EventType, event
 from flwr.common.typing import RunNotRunningException, RunStatus
 from flwr.proto.run_pb2 import UpdateRunStatusRequest  # pylint: disable=E0611
 from flwr.proto.serverappio_pb2 import (  # pylint: disable=E0611
@@ -113,7 +115,7 @@ def run_serverapp(  # pylint: disable=R0914, disable=W0212, disable=R0915
     # Resolve directory where FABs are installed
     flwr_dir_ = get_flwr_dir(flwr_dir)
     log_uploader = None
-
+    success = True
     while True:
 
         try:
@@ -129,6 +131,8 @@ def run_serverapp(  # pylint: disable=R0914, disable=W0212, disable=R0915
             run = run_from_proto(res.run)
             fab = fab_from_proto(res.fab)
 
+            hash_run_id = get_sha256_hash(run.run_id)
+
             driver.set_run(run.run_id)
 
             # Start log uploader for this run
@@ -171,6 +175,11 @@ def run_serverapp(  # pylint: disable=R0914, disable=W0212, disable=R0915
                 UpdateRunStatusRequest(run_id=run.run_id, run_status=run_status_proto)
             )
 
+            event(
+                EventType.FLWR_SERVERAPP_RUN_ENTER,
+                event_details={"run-id-hash": hash_run_id},
+            )
+
             # Load and run the ServerApp with the Driver
             updated_context = run_(
                 driver=driver,
@@ -187,17 +196,18 @@ def run_serverapp(  # pylint: disable=R0914, disable=W0212, disable=R0915
             _ = driver._stub.PushServerAppOutputs(out_req)
 
             run_status = RunStatus(Status.FINISHED, SubStatus.COMPLETED, "")
-
         except RunNotRunningException:
             log(INFO, "")
             log(INFO, "Run ID %s stopped.", run.run_id)
             log(INFO, "")
             run_status = None
+            success = False
 
         except Exception as ex:  # pylint: disable=broad-exception-caught
             exc_entity = "ServerApp"
             log(ERROR, "%s raised an exception", exc_entity, exc_info=ex)
             run_status = RunStatus(Status.FINISHED, SubStatus.FAILED, str(ex))
+            success = False
 
         finally:
             # Stop log uploader for this run and upload final logs
@@ -213,6 +223,10 @@ def run_serverapp(  # pylint: disable=R0914, disable=W0212, disable=R0915
                         run_id=run.run_id, run_status=run_status_proto
                     )
                 )
+            event(
+                EventType.FLWR_SERVERAPP_RUN_LEAVE,
+                event_details={"run-id-hash": hash_run_id, "success": success},
+            )
 
         # Stop the loop if `flwr-serverapp` is expected to process a single run
         if run_once:

src/py/flwr/simulation/app.py

@@ -24,7 +24,8 @@
 
 from flwr.cli.config_utils import get_fab_metadata
 from flwr.cli.install import install_from_fab
-from flwr.common import EventType
+from flwr.cli.utils import get_sha256_hash
+from flwr.common import EventType, event
 from flwr.common.args import add_args_flwr_app_common
 from flwr.common.config import (
     get_flwr_dir,
@@ -202,6 +203,15 @@ def run_simulation_process(  # pylint: disable=R0914, disable=W0212, disable=R09
             verbose: bool = fed_opt.get("verbose", False)
             enable_tf_gpu_growth: bool = fed_opt.get("enable_tf_gpu_growth", False)
 
+            event(
+                EventType.FLWR_SIMULATION_RUN_ENTER,
+                event_details={
+                    "backend": "ray",
+                    "num-supernodes": num_supernodes,
+                    "run-id-hash": get_sha256_hash(run.run_id),
+                },
+            )
+
             # Launch the simulation
             updated_context = _run_simulation(
                 server_app_attr=server_app_attr,
@@ -214,7 +224,7 @@ def run_simulation_process(  # pylint: disable=R0914, disable=W0212, disable=R09
                 verbose_logging=verbose,
                 server_app_run_config=fused_config,
                 is_app=True,
-                exit_event=EventType.CLI_FLOWER_SIMULATION_LEAVE,
+                exit_event=EventType.FLWR_SIMULATION_RUN_LEAVE,
             )
 
             # Send resulting context

src/py/flwr/simulation/run_simulation.py

@@ -28,6 +28,7 @@
 from typing import Any, Optional
 
 from flwr.cli.config_utils import load_and_validate
+from flwr.cli.utils import get_sha256_hash
 from flwr.client import ClientApp
 from flwr.common import Context, EventType, RecordSet, event, log, now
 from flwr.common.config import get_fused_config_from_dir, parse_config_args
@@ -394,7 +395,13 @@ def _main_loop(
     finally:
         # Trigger stop event
         f_stop.set()
-        event(exit_event, event_details={"success": success})
+        event(
+            exit_event,
+            event_details={
+                "run-id-hash": get_sha256_hash(run.run_id),
+                "success": success,
+            },
+        )
         if serverapp_th:
             serverapp_th.join()
             if server_app_thread_has_exception.is_set():