Major Description
The recent rework of OrphanReporter to prevent blocking of threads in the thread pool has created a slow memory leak. This is due to this corner-case bug in System.Threading.Channels: https://github.com/dotnet/runtime/issues/761
The queue within OrphanReporter is a very low volume queue, in ideal scenarios never receiving any items at all. In this case, using ChannelReader.WaitForReadyAsync with a timeout via CancellationToken will leak the memory associated with the CancellationTokenSource/callbacks/etc on each loop. This memory will be cleaned up whenever the next item arrives in the queue, but this may never happen and it will usually grow indefinitely.
https://forums.couchbase.com/t/memory-leak-in-couchbase-net-sdk/32084
