nervosnetwork/ckb v0.34.0

ckb 0.34.0 (f37f598 2020-07-17)

on GitHub

Features

• #2067: Optimize scheduler (@driftluo)

  Problems with the current scheduler:

  1. The calculation is too frequent
  2. Inability to adapt to complex network environments.

  This PR implements an adaptive scheduler based on past data, removing most of the redundant calculations.

• #2145: Don't cache all block status in memory (@yangby-cryptape)

  When a node is start from number 0, it will sync all headers at first, then the block_status_map will be full quickly.
  Then, along with the block sync, all data in block_status_map will be removed.
  When the IBD is done, there will be nothing left in block_status_map.

  But when another new-started node try to sync data from this node, this node will fetch all block statuses from database and insert them into block_status_map without deletions. And full block status will store in memory until the node is shutdown.

• #2113: Change logger filter dynamically via RPC (@yangby-cryptape)

• #2036: Monitor rocksdb memory usages in logs (optional; default: disable) (@yangby-cryptape)

• #2114: Add command to generate peer id (@driftluo)

  $ ckb peer-id gen --secret_path ./a.txt
  $ ckb peer-id from-secret --secret-path ./a.txt
  

• #2045: New subcommand replay (@zhangsoledad)

  The new subcommand can be used in both profiling and sanity check, such as verifiying the downloaded data directory archive.

• #2042: Return filename of jemalloc_profiling_dump (@keroro520)

• #2064: Add RPC truncate (@keroro520)

  For convenient to reproduce a specified environment when test, this PR adds RPC truncate(target_tip_hash) to roll-back the blockchain downto the target block.

• #2081: Update last_common_header only in find_blocks_to_fetch (@keroro520)

  peer.best_known_block refers to the best-known block we know this peer has announced; peer.last_common_header refers to the last block we both stored between local and peer. This PR proposes a new process to update the two fields.

• #2136: Add RPC clear_tx_pool to remove all the transactions in the tx-pool (@keroro520)

Bug Fixes

• #2101: Resolve an unexpected shutdown issue when we got a ProtoHandleBlock error in p2p (@quake)

• #2124: prepare_uncles_test failed on block_template update delayed (@zhangsoledad)

• #2140: Shrink state map (@zhangsoledad)

  Cause rust hash table capacity does not shrink automatically, we need explicit call shrink for predictable limit memory usage.

• #2109: Fix deadlock caused by conflicting lock order (@BurtonQin)

Improvements

• #2126: Remove fee estimator (@zhangsoledad)

  This estimate_fee_rate RPC is experimental, due to availability and performance issues, we decide to remove it.

• #2128: Try next listen address on parsing error (@doitian)

• #2107: Use generic key / value in template context (@quake)

  This PR changed TemplateContext key/value from fixed field to hashmap, it made the ckb-resource crate easier to use in 3rd party applications

• #2103: Use generic type in NetworkService (@quake)

  This PR changed NetworkService's exit_condvar to generic type and removed node_version from start fn, make it easier to use ckb-network crate as a lib

• #2096: Move network protocol related variables to SupportProtocols (@quake)

  To eliminate dependence of ckb-sync crate, this PR refactored network protocol related variables and move them to a new enum: SupportProtocols