1. We were holding open FDs longer than we should for consumers causing issues with open FD limits. We now do not hold them open and cap updates a bit better.
2. When doing a stream delete, consumer delete was repeating alot of work that was not necessary, causing longer delays. This has been optimized a bit, still more improvements to be made.
3. We cover all JS under a single export, but that was also trapping GetNext for pull based consumers, and since this was a no-op (is handled at user account level) we were creating alot of garbage service import responses and reverse map entries that had to be garbage collected. We have a fix in to avoind this but still looking for a better one.
4. Still had some lingering references to all exports vs single JS export.
Signed-off-by: Derek Collison <derek@nats.io>
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