Java has an InheritableThreadLocal for that very reason - that is automatically propagated and the child can subsequently override if needed.
> On Sep 30, 2022, at 9:43 AM, Ian Davis <m...@iandavis.com> wrote: > > >> On Fri, 30 Sep 2022, at 3:32 PM, Robert Engels wrote: >> Very interesting article came out recently. >> https://www.infoq.com/articles/java-virtual-threads/ and it has implications >> for the Go context discussion and the author makes a very good case as to >> why using the thread local to hold the context - rather than coloring every >> method in the chain is a better approach. If the “virtual thread aka Go >> routine” is extremely cheap to create you are far better off creating one >> per request than pooling - in fact pooling becomes an anti pattern. If you >> are creating one per request then the thread/routine becomes the context >> that is required. No need for a distinct Context to be passed to every >> method. > > I don't think it is usual to pool goroutines. Normal usage is to spin one up > for each incoming request, which is the pattern used by Go's http server for > example. > > I skimmed the article but my knowledge of Java's thread local storage is > limited. In Go it's common for requests to spawn subrequests in their own > goroutines. With a context you would derive a child context, potentially with > a shorter lifetime. What is the equivalent in thread local storage? Is there > a way to access parent thread storage from a child (analogous to how a child > context has access to all the values assigned to the parent)? > > > -- > You received this message because you are subscribed to the Google Groups > "golang-nuts" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to golang-nuts+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/golang-nuts/b35520c7-87b2-4b83-be1b-2d2f4257d283%40app.fastmail.com. -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/306D782C-C506-46BD-BBC3-1B336AEE3367%40ix.netcom.com.
