Unexpected errors

src/neptune_scale/core/components/errors_tracking.py

@@ -13,7 +13,11 @@
 from neptune_scale.core.components.daemon import Daemon
 from neptune_scale.core.logger import logger
 from neptune_scale.core.process_killer import kill_me
-from neptune_scale.exceptions import NeptuneOperationsQueueMaxSizeExceeded
+from neptune_scale.exceptions import (
+    NeptuneOperationsQueueMaxSizeExceeded,
+    NeptuneScaleError,
+    NeptuneUnexpectedError,
+)
 from neptune_scale.parameters import ERRORS_MONITOR_THREAD_SLEEP_TIME
 
 
@@ -67,5 +71,7 @@ def work(self) -> None:
         while (error := self.get_next()) is not None:
             if isinstance(error, NeptuneOperationsQueueMaxSizeExceeded):
                 self._max_queue_size_exceeded_callback(error)
-            else:
+            elif isinstance(error, NeptuneScaleError):
                 self._on_error_callback(error)
+            else:
+                self._on_error_callback(NeptuneUnexpectedError(reason=str(type(error))))

src/neptune_scale/core/components/operations_queue.py

@@ -55,7 +55,7 @@ def enqueue(self, *, operation: RunOperation) -> None:
 
             with self._lock:
                 self._queue.put(
-                    QueueElement(self._sequence_id, monotonic(), serialized_operation),
+                    QueueElement(self._sequence_id, monotonic(), b"deadbeef" + serialized_operation),
                     block=True,
                     timeout=None,
                 )

src/neptune_scale/exceptions.py

@@ -5,6 +5,7 @@
     "NeptuneOperationsQueueMaxSizeExceeded",
     "NeptuneUnauthorizedError",
     "NeptuneInvalidCredentialsError",
+    "NeptuneUnexpectedError",
 )
 
 from typing import Any
@@ -104,3 +105,19 @@ class NeptuneInvalidCredentialsError(NeptuneScaleError):
 
 Struggling with the formatting? To disable it, set the `NEPTUNE_DISABLE_COLORS` environment variable to `True`.
 """
+
+
+class NeptuneUnexpectedError(NeptuneScaleError):
+    message = """
+{h1}
+----NeptuneUnexpectedError-----------------------------------------------------
+{end}
+An unexpected error occurred in Neptune Scale Client. Please contact Neptune.ai support. Raw exception name: "{reason}"
+
+{correct}Need help?{end}-> https://docs.neptune.ai/getting_help
+
+Struggling with the formatting? To disable it, set the `NEPTUNE_DISABLE_COLORS` environment variable to `True`.
+"""
+
+    def __init__(self, reason: str) -> None:
+        super().__init__(reason=reason)