This Week in Lotus - Week 16

👋 Really, is it Friday / Saturday already? This week passed quickly, but that did not stop things from moving forward in Lotus.

Issues we have seen frequently this week:

• We have seen some datastore: key not found reports when trying to import offline deals. This happens when the deal proposal never reaches the lotus-miner, and is usually caused by some connectivity issue on the storage provider side or an issue on the client side when sending out the deal proposal.
• We are aware of the wdPoSt scheduler notifs channel issue - where the channel can close under heavy load, and we are looking into it. But it is really hard to reproduce easily - so if anyone in the community has more information on how we can reproduce it easily, please add a comment/steps in this issue-thread. 🙏

Bugfixes for common issues:

• SnapDeals is getting more and more stable with only some minor issues left. We are also seeing that the number of sectors snapped is going 📈. The v1.15.2 (currently in rc) is the most stable version in terms of the SnapDeals feature.

Upcoming features:

• The second release candidate for v1.15.2 is expected to be released soon. And it introduces a couple of backports, most noteworthy the ability to run the index provider on testnets. The current testing of v1.15.2-rc1 has not uncovered any big issues, which is a good sign of how stable this release candidate has been. NB: Setting the file descriptor limit high enough has become a requirement for all workers on v1.15.2 - so make sure that you have raised the ulimit on the workers before upgrading.
• The Lotus devs has been working really hard on FIP31 this week. :cattyping: It represents an important preparatory step in the trajectory towards full on-chain user-programmability on Filecoin. You can read more about FIP31 (Filecoin Improvement Proposal 31) here.

That’s it for the week! Have a great weekend! ☀️