fix: retry write_llmusage with *1,*2 on duplicate; gen() catch+refund but yield error not raise

llmage/llmclient.py

@@ -93,6 +93,18 @@ async def uapi_request(request, llm, callerid, callerorgid, params_kw=None):
 		llmusage.accounting_status = 'created'
 		await write_llmusage(llmusage)
 	except Exception as e:
+		# Retry on duplicate key: append *1, *2, ...
+		retry = 0
+		while 'Duplicate entry' in str(e) and retry < 3:
+			retry += 1
+			llmusage.id = f'{luid}*{retry}'
+			try:
+				await write_llmusage(llmusage)
+				exception(f'write_llmusage retry {retry} succeeded with id={llmusage.id}')
+				e = None
+				break
+			except Exception as e2:
+				e = e2
 		# Refund balance reservation on failure
 		try:
 			from .balance import refund_balance

wwwroot/v1/chat/completions/index.dspy

@@ -1,6 +1,7 @@
 async def gen():
 	env = request._run_ns.copy()
 	f = partial(inference_generator, request, params_kw=params_kw)
+	try:
 		if params_kw.stream:
 			async for l in f():
 				yield f'data: {l}\\n'
@@ -8,6 +9,16 @@ async def gen():
 		else:
 			async for l in f():
 				yield l
+	except Exception as e:
+		luid = params_kw.get('_luid')
+		if luid:
+			try:
+				await env.refund_balance(luid)
+			except:
+				pass
+		import json as _json
+		err = _json.dumps({"error": str(e), "status": "FAILED"}, ensure_ascii=False)
+		yield f'data: {err}\\n' if params_kw.stream else err
 
 debug_params('params_kw', params_kw)
 catelogid = params_kw.catelogid or 't2t'