add debug option to log all SQL commands (#8324)

chia/full_node/full_node.py

@@ -58,6 +58,7 @@ from chia.util.ints import uint8, uint32, uint64, uint128
 from chia.util.path import mkdir, path_from_root
 from chia.util.safe_cancel_task import cancel_task_safe
 from chia.util.profiler import profile_task
+from datetime import datetime
 
 
 class FullNode:
@@ -121,6 +122,17 @@ class FullNode:
         self.new_peak_sem = asyncio.Semaphore(8)
         # create the store (db) and full node instance
         self.connection = await aiosqlite.connect(self.db_path)
+        if self.config.get("log_sqlite_cmds", False):
+            sql_log_path = path_from_root(self.root_path, "log/sql.log")
+            self.log.info(f"logging SQL commands to {sql_log_path}")
+
+            def sql_trace_callback(req: str):
+                timestamp = datetime.now().strftime("%H:%M:%S.%f")
+                log = open(sql_log_path, "a")
+                log.write(timestamp + " " + req + "\n")
+                log.close()
+
+            await self.connection.set_trace_callback(sql_trace_callback)
         self.db_wrapper = DBWrapper(self.connection)
         self.block_store = await BlockStore.create(self.db_wrapper)
         self.sync_store = await SyncStore.create()

chia/util/initial-config.yaml

@@ -304,6 +304,10 @@ full_node:
   # analyze with chia/utils/profiler.py
   enable_profiler: False
 
+  # this is a debug and profiling facility that logs all SQLite commands to a
+  # separate log file (under logging/sql.log).
+  log_sqlite_cmds: False
+
   # List of trusted DNS seeders to bootstrap from.
   # If you modify this, please change the hardcode as well from FullNode.set_server()
   dns_servers: