chore(symdb): upload compressed symbol payloads

We add support for compressed symbol database payloads.

ddtrace/internal/symbol_db/symbols.py

@@ -3,6 +3,7 @@
 from dataclasses import field
 import dis
 from enum import Enum
+import gzip
 from http.client import HTTPResponse
 from inspect import CO_VARARGS
 from inspect import CO_VARKEYWORDS
@@ -484,9 +485,10 @@ def upload(self) -> HTTPResponse:
                 ),
                 FormData(
                     name="file",
-                    filename="symdb_export.json",
-                    data=json.dumps(self.to_json()),
+                    filename="symdb_export.gz",
+                    data=gzip.compress(json.dumps(self.to_json()).encode()),
                     content_type="json",
+                    content_encoding="gzip",
                 ),
             ]
         )
@@ -527,7 +529,7 @@ def is_module_included(module: ModuleType) -> bool:
 
 
 class SymbolDatabaseUploader(BaseModuleWatchdog):
-    __scope_limit__ = 100
+    __scope_limit__ = 400
 
     def __init__(self) -> None:
         super().__init__()

ddtrace/internal/utils/http.py

@@ -418,8 +418,9 @@ def parse_message(msg):
 class FormData:
     name: str
     filename: str
-    data: str
+    data: Union[str, bytes]
     content_type: str
+    content_encoding: Optional[str] = None
 
 
 def multipart(parts: List[FormData]) -> Tuple[bytes, dict]:
@@ -433,6 +434,8 @@ def multipart(parts: List[FormData]) -> Tuple[bytes, dict]:
     for part in parts:
         app = MIMEApplication(part.data, part.content_type, lambda _: _)
         app.add_header("Content-Disposition", "form-data", name=part.name, filename=part.filename)
+        if part.content_encoding:
+            app.add_header("Content-Encoding", part.content_encoding)
         del app["MIME-Version"]
         msg.attach(app)