Yes, that is true. Allocators, buffers and pretty much everything inbetween is thread safe. Locking around the memory backing a buffer itself needs to be managed in the app. You can review the doc here which talks more about the structure of the allocators:
https://github.com/apache/arrow/blob/master/java/memory/src/main/java/org/apache/arrow/memory/README.md On Thu, Dec 6, 2018 at 10:08 PM Li Jin <ice.xell...@gmail.com> wrote: > Hey folks, > > I am studying a bit of the buffer allocators code in the Java library. From > my understanding of the code, the buffer allocators are thread safe. i.e., > you can use the same buffer allocator to multiple threads, as well as > creating child allocators from the same allocator and use them in different > threads. > > Is my understanding correct? I also get this question from other users so I > think it will be helpful to put that in the doc as well. > > Thanks, > Li >
