icexelloss commented on PR #36499: URL: https://github.com/apache/arrow/pull/36499#issuecomment-1625727750
> This case doesn't always occur though it is indeed the common one. It occurs when the input-receiving thread invalidates the key hasher while the processing thread is not executing HashesFor concurrently. In this case, the invalidation sets KeyHasher::batch_ to nullptr, and the processing threads finds this nullptr in a later invocation of HashesFor. > The other case (also https://github.com/apache/arrow/pull/36499#discussion_r1255982569) is when the processing thread is executing HashesFor concurrently with the input-receiving thread executing Invalidate. I am trying understand the issue before this PR, but you seems to explaining the behavior after the code change here? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
