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v0.12.4

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@ajsutton ajsutton released this 25 Aug 21:52
· 4067 commits to master since this release
0.12.4
4bbd0ac
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Learn about vigilant mode.

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  • --validators-key-files and --validators-key-password-files have been replaced by --validator-keys.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
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