teor

## Motivation Sometimes Google Cloud authentication fails with: > Run google-github-actions/[email protected] > Error: google-github-actions/auth failed with: retry function failed with 0 attempts: error message: Cannot read properties of undefined (reading...

## Motivation If a cached state job is run twice on the same commit on the same branch, the job fails. If other required jobs depend on that cached state...

## Motivation Alfredo and I have been doing some timing tests on Zebra's `CommitBlock` and `CommitFinalizedBlock` state requests. In some of my tests, Sapling note commitment tree appends were taking...

De-duplicate note commitment trees in the finalized and non-finalized state

4

## Motivation Zebra stores duplicates of each Sprout note commitment tree, and after #3563, it also stores duplicates of each Sapling and Orchard note commitment tree. This is a RAM,...

Make PRs from external repositories pass or skip CI jobs

2

## Motivation Currently, Zebra's CI fails on PRs from external contributors. This can be a really confusing and negative experience for a first-time contributor. Example: https://github.com/ZcashFoundation/zebra/pull/4527 ### Priority We want...

## Motivation I saw the `mempool_failed_verification_is_rejected` test fail after about 800 test runs, and then again after 52 test runs. We should fix this eventually. ### Failure Logs ``` The...

Move CPU-heavy proof preparation into the batch cryptography thread

11

## Motivation Zebra's sync can be slow or fail, because proof batch preparation involves some CPU-heavy cryptography. So we want to move proof preparation into the existing batch `rayon` CPU...

## Motivation Sometimes Zebra takes over a minute to open the database ## Tasks Change the database options as recommended in: https://github.com/facebook/rocksdb/wiki/Speed-Up-DB-Open

Security: Remove the ErrorSlot from the heartbeat and connection tasks

9

## Motivation The error handling for the `Connection` and heartbeat tasks is really messy. It has been really buggy in the past, and it's hard to understand or modify. The...

Revert note commitment and history trees when forking non-finalized chains

6

## Motivation When Zebra forks a non-finalized chain, it rebuilds the note commitment trees from the finalized tip. But this can execute 100 blocks worth of note commitment tree updates,...