ib: add `.pause()` on symbol query overruns to aid in fixing the issue

piker/brokers/ib/api.py

@@ -229,8 +229,8 @@ _samplings: dict[int, tuple[str, str]] = {
     # throughput can be made faster during backfilling.
     60: (
         '1 min',
-        '1 D',
-        pendulum.duration(days=1),
+        '2 D',
+        pendulum.duration(days=2),
     ),
 }
 

piker/brokers/ib/feed.py

@@ -818,7 +818,7 @@ async def stream_quotes(
     details: ibis.ContractDetails
     async with (
         open_data_client() as proxy,
-        trio.open_nursery() as tn,
+        # trio.open_nursery() as tn,
     ):
         mkt, details = await get_mkt_info(
             sym,

piker/brokers/ib/symbols.py

@@ -214,7 +214,7 @@ async def open_symbol_search(ctx: tractor.Context) -> None:
             last = time.time()
             async for pattern in stream:
                 log.info(f'received {pattern}')
-                now = time.time()
+                now: float = time.time()
 
                 # this causes tractor hang...
                 # assert 0
@@ -261,7 +261,9 @@ async def open_symbol_search(ctx: tractor.Context) -> None:
                 # defined adhoc symbol set.
                 stock_results = []
 
-                async def stash_results(target: Awaitable[list]):
+                async def extend_results(
+                    target: Awaitable[list]
+                ) -> None:
                     try:
                         results = await target
                     except tractor.trionics.Lagged:
@@ -274,7 +276,7 @@ async def open_symbol_search(ctx: tractor.Context) -> None:
                     with trio.move_on_after(3) as cs:
                         async with trio.open_nursery() as sn:
                             sn.start_soon(
-                                stash_results,
+                                extend_results,
                                 proxy.search_symbols(
                                     pattern=pattern,
                                     upto=5,
@@ -289,8 +291,10 @@ async def open_symbol_search(ctx: tractor.Context) -> None:
                             f'Search timeout? {proxy._aio_ns.ib.client}'
                         )
                         continue
-                    else:
+                    elif stock_results:
                         break
+                    # else:
+                    await tractor.pause()
 
                     # # match against our ad-hoc set immediately
                     # adhoc_matches = fuzzy.extract(