KX Community

Hi there, 1. Yes we’re using Prefect to orchestrate PyKX 2. We’re using a @taskto query using PyKX. The connection is done outside of the flow and task (attached code snippet below) 3. Switching to flows does work, but we want some functions to execute in parallel. When we switched to all flows/subflows, it seemed like it was all executing sequentially. 4. We tried doing it in parallel outside of Prefect using from multiprocessing import Pool and it was operating fine 5. Multiple queries 6. PyKX version 1.5.4 7. Unlicensed mode 8. Using SyncQConnection and IPC to grab handle into port port = masterConn(‘getProcessClient[`prefect_pykx;`pykx_test]’) conn = kx.SyncQConnection( host=”, port=port.py(), username=’cleung’, password=token) Code Snippet: import pykx as kx import subprocess from prefect import flow, task, get_run_logger masterConn = kx.SyncQConnection( host=’v-kdbr-01′, port=5000, username=’cleung’, password=token, timeout=3.0 ) user = masterConn(‘.z.u’) print(‘User = ‘ + user.py()) port = masterConn(‘getProcessClient[`prefect_pykx;`pykx_test]’) print(‘Port = ‘ + str(port.py())) masterConn.close() conn = kx.SyncQConnection( host=’v-kdbr-01′, port=port.py(), username=’cleung’, password=token) user = conn(‘.z.u’) print(‘User = ‘ + user.py()) @task def saveRecRevAI260(): logger = get_run_logger() logger.info(“Executing saveRecRevAI260”) conn(‘.imq.model.saveRecRevAI260[.dt.shiftstartdr[max dailyDates;neg 1];inLogFile;`reportDate]’) logger.info(“Finished saveRecRevAI260”) return 1 @task def saveEstRevAI(): logger = get_run_logger() logger.info(“Executing saveEstRevAI”) conn(‘.imq.model.saveEstRevAI[.dt.shiftstartdr[max dailyDates;neg 1];();inLogFile]’) logger.info(“Finished saveEstRevAI”) return 1 @task def saveRetRawNaive(): logger = get_run_logger() logger.info(“Executing saveRetRawNaive”) conn(‘.imq.model.saveRetRawNaive[dailyDates;`]’) logger.info(“Finished saveRetRawNaive”) return 1 @task def saveEstRevStdDev5Yr(): logger = get_run_logger() logger.info (“Executing saveEstRevStdDev5Yr”) conn(“.imq.model.saveEstRevStdDev5Yr[dailyDates;`reportDate;inLogFile]”) logger.info(“Finished saveEstRevStdDev5Yr”) return 1 @task def saveSRinteractionsEarnItems(): logger = get_run_logger() logger.info(“Executing saveSRinteractionsEarnItems”) conn(“.imq.model.saveSRInteractionsEarnItems[dailyDates;inLogFile]”) logger.info(“Finished saveSRinteractionsEarnItems”) @flow() def ibes_pykx(): logger = get_run_logger() logger.info(“Initializing initial arguments”) dailyDates = conn(‘dailyDates: .dt.drb[.dt.shiftdateb[exec max date from QModelD;-3]; exec max date from QModelD];’) logFile = conn(‘inLogFile:`’) saveRecRevAI260_result = saveRecRevAI260.submit() saveRetRawNaive_result = saveRetRawNaive.submit() saveEstRevAI_result = saveEstRevAI(wait_for=[saveRecRevAI260_result]) saveSRinteractionsEarnItems_result = saveSRinteractionsEarnItems(wait_for=[saveRetRawNaive_result]) # saveEstRevStdDev5Yr_result = saveEstRevStdDev5Yr(wait_for=[saveEstRevAI_result]) if __name__ == “__main__”: ibes_pykx() Error Message: 4:15:15.041 | DEBUG | Task run ‘saveRecRevAI260-0’ – Beginning execution… 14:15:15.046 | INFO | Task run ‘saveRecRevAI260-0’ – Executing saveRecRevAI260 14:15:15.108 | DEBUG | Task run ‘saveRetRawNaive-0’ – Beginning execution… 14:15:15.112 | INFO | Task run ‘saveRetRawNaive-0’ – Executing saveRetRawNaive 14:15:16.486 | DEBUG | prefect.client – Connecting to API at http://v-tm-qeq-05:4200/api/ 14:16:31.335 | ERROR | Task run ‘saveRecRevAI260-0’ – Encountered exception during execution: Traceback (most recent call last): File “C:UserscleungAppDataRoamingPythonPython38site-packagesprefectengine.py”, line 1533, in orchestrate_task_run result = await run_sync(task.fn, *args, **kwargs) File “C:UserscleungAppDataRoamingPythonPython38site-packagesprefectutilitiesasyncutils.py”, line 156, in run_sync_in_interruptible_worker_thread tg.start_soon( File “\v-tm-qeq-05Prefectlibsite-packagesanyio_backends_asyncio.py”, line 662, in __aexit__ raise exceptions[0] File “\v-tm-qeq-05Prefectlibsite-packagesanyioto_thread.py”, line 31, in run_sync return await get_asynclib().run_sync_in_worker_thread( File “\v-tm-qeq-05Prefectlibsite-packagesanyio_backends_asyncio.py”, line 937, in run_sync_in_worker_thread return await future File “\v-tm-qeq-05Prefectlibsite-packagesanyio_backends_asyncio.py”, line 867, in run result = context.run(func, *args) File “C:UserscleungAppDataRoamingPythonPython38site-packagesprefectutilitiesasyncutils.py”, line 135, in capture_worker_thread_and_result result = __fn(*args, **kwargs) File “//v-tm-qeq-05/PrefectScripts/cleung/Script/ibes_pykx.py”, line 24, in saveRecRevAI260 conn(‘.imq.model.saveRecRevAI260[.dt.shiftstartdr[max dailyDates;neg 1];inLogFile;`reportDate]’) File “\v-tm-qeq-05Prefectlibsite-packagespykxipc.py”, line 806, in __call__ return self._call(query, *args, wait=wait) File “\v-tm-qeq-05Prefectlibsite-packagespykxipc.py”, line 816, in _call return self._recv(locked=True) File “\v-tm-qeq-05Prefectlibsite-packagespykxipc.py”, line 511, in _recv res = callback(key.fileobj) File “\v-tm-qeq-05Prefectlibsite-packagespykxipc.py”, line 535, in _recv_socket size = chunks[4] IndexError: list index out of range 14:16:31.558 | ERROR | Task run ‘saveRecRevAI260-0’ – Finished in state Failed(‘Task run encountered an exception: IndexError: list index out of rangen’) 14:16:31.622 | ERROR | Flow run ‘chocolate-marmot’ – Encountered exception during execution: Traceback (most recent call last): File “C:UserscleungAppDataRoamingPythonPython38site-packagesprefectengine.py”, line 665, in orchestrate_flow_run result = await run_sync(flow_call) File “C:UserscleungAppDataRoamingPythonPython38site-packagesprefectutilitiesasyncutils.py”, line 156, in run_sync_in_interruptible_worker_thread tg.start_soon( File “\v-tm-qeq-05Prefectlibsite-packagesanyio_backends_asyncio.py”, line 662, in __aexit__ raise exceptions[0] File “\v-tm-qeq-05Prefectlibsite-packagesanyioto_thread.py”, line 31, in run_sync return await get_asynclib().run_sync_in_worker_thread( File “\v-tm-qeq-05Prefectlibsite-packagesanyio_backends_asyncio.py”, line 937, in run_sync_in_worker_thread return await future File “\v-tm-qeq-05Prefectlibsite-packagesanyio_backends_asyncio.py”, line 867, in run result = context.run(func, *args) File “C:UserscleungAppDataRoamingPythonPython38site-packagesprefectutilitiesasyncutils.py”, line 135, in capture_worker_thread_and_result result = __fn(*args, **kwargs) File “//v-tm-qeq-05/PrefectScripts/cleung/Script/ibes_pykx.py”, line 69, in ibes_pykx saveEstRevAI_result = saveEstRevAI(wait_for=[saveRecRevAI260_result]) File “C:UserscleungAppDataRoamingPythonPython38site-packagesprefecttasks.py”, line 469, in __call__ return enter_task_run_engine( File “C:UserscleungAppDataRoamingPythonPython38site-packagesprefectengine.py”, line 965, in enter_task_run_engine return run_async_from_worker_thread(begin_run) File “C:UserscleungAppDataRoamingPythonPython38site-packagesprefectutilitiesasyncutils.py”, line 177, in run_async_from_worker_thread return anyio.from_thread.run(call) File “\v-tm-qeq-05Prefectlibsite-packagesanyiofrom_thread.py”, line 49, in run return asynclib.run_async_from_thread(func, *args) File “\v-tm-qeq-05Prefectlibsite-packagesanyio_backends_asyncio.py”, line 970, in run_async_from_thread return f.result() File “\v-tm-qeq-05Prefectlibconcurrentfutures_base.py”, line 444, in result return self.__get_result() File “\v-tm-qeq-05Prefectlibconcurrentfutures_base.py”, line 389, in __get_result raise self._exception File “C:UserscleungAppDataRoamingPythonPython38site-packagesprefectengine.py”, line 1114, in get_task_call_return_value return await future._result() File “C:UserscleungAppDataRoamingPythonPython38site-packagesprefectfutures.py”, line 237, in _result return await final_state.result(raise_on_failure=raise_on_failure, fetch=True) File “C:UserscleungAppDataRoamingPythonPython38site-packagesprefectstates.py”, line 103, in _get_state_result raise MissingResult( prefect.exceptions.MissingResult: State data is missing. Typically, this occurs when result persistence is disabled and the state has been retrieved from the API. Thanks a lot for your help by the way. Greatly appreciate it!!