Re: Gandiva and Threads

2020-08-14 Thread Jacques Nadeau
@ravin...@dremio.com @prav...@dremio.com thoughts? On Tue, Jul 28, 2020 at 3:39 PM Wes McKinney wrote: > Perhaps Gandiva does not handle sliced arrays properly? This would be > worth investigating > > On Mon, Jul 27, 2020 at 7:43 PM Matt Youill > wrote: > > > > Managed to track down the issue

Re: Gandiva and Threads

2020-07-28 Thread Wes McKinney
Perhaps Gandiva does not handle sliced arrays properly? This would be worth investigating On Mon, Jul 27, 2020 at 7:43 PM Matt Youill wrote: > > Managed to track down the issue (sort of). > > I removed a call to set_chunksize on TableBatchReader where the chunk > size was less than the number of

Re: Gandiva and Threads

2020-07-27 Thread Matt Youill
Managed to track down the issue (sort of). I removed a call to set_chunksize on TableBatchReader where the chunk size was less than the number of rows in a table being read. Runs fine now (tested with 100s threads over mils of rows). Strangely, Gandiva fails if I don't call set_chunksize for

Re: Gandiva and Threads

2020-07-27 Thread Wes McKinney
Crashing when running from multiple threads doesn't sound right, perhaps there are some missing synchronizations in internal data structures. Could you open a JIRA issue and show the backtraces of any crashes or other clues about how to reproduce the issues? On Sun, Jul 26, 2020 at 8:12 PM Matt Yo