Consensys/teku 0.12.4

v0.12.4

on GitHub

Upcoming Breaking Changes

• REST API endpoints will be updated to match emerging standards in a future release.
• --validators-key-files and --validators-key-password-files have been replaced by --validator-keys. The old arguments still work but will be removed in a future release.

Additions and Improvements

• Includes a significant number of bug fixes and performance improvements as a result of the recent issues on the Medalla testnet. See #2596 for a full list of related issues.
• Support loading an entire directory of validator keys using --validator-keys=<keyDir>:<passDir>. Individual keystore and password files can also be specified using this new argument.
• Major reduction in CPU and memory usage during periods of non-finalization by intelligently queuing and combining requests for beacon states and checkpoint states
• Fixed slow startup times during long periods of non-finalization. Non-finalized states are now periodically persisted to disk to avoid needing to replay large numbers of blocks to regenerate state.
• Reduced sync times during long periods of non-finalization by searching for a more recent common ancestor than the finalized checkpoint
• Added explicit UInt64 overflow and underflow protection
• Local signing is now multithreaded to better utilise CPU when running large numbers of validators
• Improved sync performance by continuing to update the target peer's status during the sync process
• Removed support for SecIO. Only the NOISE handshake is now supported.
• Provide a more userfriendly error message and exit if the P2P network port is already in use
• Added new metrics
  • validator_attestation_publication_delay reports a histogram showing real time between when validations were due and when they were published to the network

Bug Fixes

• Fixed issue where attestations were created for the wrong head because fork choice had not yet been run. Results in a significant improvement in attestation inclusion rate.
• Fixed issue where invalid blocks were produced because they included attestations from forks that had different attestation committees
• Fixed issue where block production may be scheduled for the wrong slot due to calculating duties one epoch ahead
• Fixed issue where sync could appear to stall because fork choice data wasn't being updated during sync
• Fixed race condition when updating fork choice votes which could lead to ProtoNode: Delta to be subtracted is greater than node weight errors
• Reduce RejectedExecutionException noise in logs when Teku is unable to keep up with incoming gossip messages. Other performance improvements should also improve the ability to keep up.
• Fixed cases where states were regenerated without first checking if a cached version was available
• Fixed excessive memory usage in discovery when parsing an invalid RLP message
• Fixed issue where maximum cache sizes could be exceeded resulting in excessive memory usage
• Be more lenient in detecting peers that excessively throttle requests for blocks to better handle long stretches of empty slots
• Fixed error when validating gossiped attestations that point to old blocks
• Fixed netty thread blocked error messages from metrics by avoiding contention on key locks while retrieving metrics
• Fixed issue where sockets were left open when using an external signer