feat!: enable numalogic metrics

numalogic/_constants.py

@@ -18,6 +18,9 @@
 BASE_CONF_DIR = os.path.join(BASE_DIR, "config")
 
 DEFAULT_BASE_CONF_PATH = os.path.join(BASE_CONF_DIR, "default-configs", "config.yaml")
+DEFAULT_METRICS_CONF_PATH = os.path.join(
+    BASE_CONF_DIR, "default-configs", "numalogic_udf_metrics.yaml"
+)
 DEFAULT_APP_CONF_PATH = os.path.join(BASE_CONF_DIR, "app-configs", "config.yaml")
 DEFAULT_METRICS_PORT = 8490
 NUMALOGIC_METRICS = "numalogic_metrics"

numalogic/tools/exceptions.py

@@ -70,6 +70,12 @@ class RedisRegistryError(Exception):
     pass
 
 
+class MetricConfigError(Exception):
+    """Raised when a numalogic udf metric config is not valid."""
+
+    pass
+
+
 class DynamoDBRegistryError(Exception):
     """Base class for all exceptions raised by the DynamoDBRegistry class."""
 

numalogic/transforms/_stateless.py

@@ -91,6 +91,12 @@
             if len(lower) != len(upper):
                 raise ValueError("lower and upper should have the same length.")
             lower, upper = np.asarray(lower, dtype=np.float32), np.asarray(upper, dtype=np.float32)
+        elif lower is not None and upper is not None:
+            if type(lower) is not type(upper):
+                if isinstance(lower, Sequence):
+                    upper = np.asarray(upper, dtype=np.float32)
+                else:
+                    lower = np.asarray(lower, dtype=np.float32)
         if upper is not None and lower is not None and np.any(lower > upper):
             raise ValueError("lower value should be less than or equal to upper value")
         return lower, upper

numalogic/udfs/__init__.py

@@ -5,6 +5,7 @@
 from numalogic._constants import BASE_DIR
 from numalogic.udfs._base import NumalogicUDF
 from numalogic.udfs._config import StreamConf, PipelineConf, MLPipelineConf, load_pipeline_conf
+from numalogic.udfs._metrics_utility import MetricsLoader
 from numalogic.udfs.factory import UDFFactory, ServerFactory
 from numalogic.udfs.payloadtx import PayloadTransformer
 from numalogic.udfs.inference import InferenceUDF
@@ -23,6 +24,11 @@
         logging.getLogger("root").setLevel(logging.DEBUG)
 
 
+def set_metrics(conf_file: str) -> None:
+    """Sets the metrics for the UDFs."""
+    MetricsLoader().load_metrics(config_file_path=conf_file)
+
+
 __all__ = [
     "NumalogicUDF",
     "PayloadTransformer",
@@ -40,4 +46,6 @@
     "load_pipeline_conf",
     "ServerFactory",
     "set_logger",
+    "set_metrics",
+    "MetricsLoader",
 ]

numalogic/udfs/__main__.py

@@ -3,16 +3,24 @@
 import sys
 from typing import Final
 
-from numalogic._constants import DEFAULT_BASE_CONF_PATH, DEFAULT_APP_CONF_PATH, DEFAULT_METRICS_PORT
+from numaprom.monitoring import start_metrics_server
+
+from numalogic._constants import (
+    DEFAULT_BASE_CONF_PATH,
+    DEFAULT_APP_CONF_PATH,
+    DEFAULT_METRICS_PORT,
+    DEFAULT_METRICS_CONF_PATH,
+)
 from numalogic.connectors.redis import get_redis_client_from_conf
-from numalogic.monitoring import start_metrics_server
-from numalogic.udfs import load_pipeline_conf, UDFFactory, ServerFactory, set_logger
+from numalogic.udfs import load_pipeline_conf, UDFFactory, ServerFactory, set_logger, set_metrics
 
 LOGGER = logging.getLogger(__name__)
 
 BASE_CONF_FILE_PATH: Final[str] = os.getenv("BASE_CONF_PATH", default=DEFAULT_BASE_CONF_PATH)
 APP_CONF_FILE_PATH: Final[str] = os.getenv("APP_CONF_PATH", default=DEFAULT_APP_CONF_PATH)
 METRICS_PORT: Final[int] = int(os.getenv("METRICS_PORT", default=DEFAULT_METRICS_PORT))
+METRICS_ENABLED: Final[bool] = bool(int(os.getenv("METRICS_ENABLED", default="1")))
+METRICS_CONF_PATH: Final[str] = os.getenv("METRICS_CONF_PATH", default=DEFAULT_METRICS_CONF_PATH)
 
 
 def init_server(step: str, server_type: str):
@@ -43,8 +51,9 @@
 
     LOGGER.info("Running %s on %s server", step, server_type)
 
-    # Start the metrics server at port METRICS_PORT = 8490
-    start_metrics_server(METRICS_PORT)
+    if METRICS_ENABLED:
+        set_metrics(conf_file=METRICS_CONF_PATH)
+        start_metrics_server(METRICS_PORT)
 
     server = init_server(step, server_type)
     server.start()