database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Primary‐Secondary synchronization . . . . . . . . . . . . . . . . . . . . . . . . . 41 Load balancer policy . . . . . . . . . Stock data migration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 561 The Synchronization of incremental data . . . . . . . . . . . . . . . . . . . . . . 561 Traffic Switching . . . Primary-Secondary synchronization It refers to the operation of asynchronously synchronizing data from a primary database to a secondary database. Due to the asynchronism of primary‐secondary synchronization, data

uses technologies such as soft updates and dual-view directories to accelerate file metadata synchronization and thus improve file read and write performance. • Tiered memory expansion etMem: With the However, in terms of metadata management, EXT4 offers insufficient performance in the journal synchronization mechanism, which causes high metadata management overheads and write amplification. These common technology. Its pointer-based directory and dual-view counting mechanism reduces metadata synchronization overheads to effectively improve the call performance of file system functions (create, unlink

performant and balanced design with multiple SPSC queues. Key Tokio Scheduler Perf Gap: Synchronization is required for stealing Software Queue Issues Producer Enqueue Software Dequeue Software Dequeue Software Dequeue Software Enqueue Software Producer Consumer Consumer Consumer • Synchronization latency • Memory/Cache latency • CPU cycles latency DLB ： Dynamic Load Balance DLB Enqueue pointers Dequeue Logic & Load Balancer Producer Producer Consumer Consumer Consumer • No Synchronization latency • No memory/cache latency • No CPU cycles DLB-Assist Channel Intro Hardware Senders

[flow_control] ; Mb, can be a decimal ; when the outgoing bandwidth exceeds the limit, the block synchronization operation will not proceed outgoing_bandwidth_limit=5 [group]配置群组ID，节点根据该ID初始化群组。 群组2的群组配置示例如下： [flow_control] ; Mb, can be a decimal ; when the outgoing bandwidth exceeds the limit, the block synchronization operation will not proceed outgoing_bandwidth_limit=2 # 设置一个区块可打包最大交易数为500 [group:1]> setSystemConfigByKey 933158c1bd3a0bf183d5498bf57202b88401e1cb20e8972aab43ba3354f0" ] > ./console getSyncStatus Synchronization Status: { "blockNumber": 3, "genesisHash": "65e9c13da61b1f47564ccc6498260d739ce3dfd336

(non-group nodes) synchronize group data? A: RemoveNodes does not participate in the consensus, synchronization, and block generation within the group. RemoveNodes can add the exit node as Sealer/Observer does not process messages Fix unassigned fields in MySQL or External mode, query failed Fix synchronization errors in some extreme scenarios Compatibility 2.0.0 is forward compatible. Old versions can packing transactions according to the execution time. optimize the process of block synchronization to make block synchronization faster optimize the codec of the upcoming transaction, the verification of the

(non-group nodes) synchronize group data? A: RemoveNodes does not participate in the consensus, synchronization, and block generation within the group. RemoveNodes can add the exit node as Sealer/Observer does not process messages Fix unassigned fields in MySQL or External mode, query failed Fix synchronization errors in some extreme scenarios Compatibility 2.0.0 is forward compatible. Old versions can packing transactions according to the execution time. optimize the process of block synchronization to make block synchronization faster optimize the codec of the upcoming transaction, the verification of the

群组2的群组配置示例如下： 共识配置 [consensus]涉及共识相关配置，包括： consensus_type：共识算法类型，目前支持PBFT，Raft和rPBFT，默认 使用PBFT共识算法； synchronization operation will not proceed outgoing_bandwidth_limit=5 [group] id=2 max_trans_num：一个区块可 [flow_control] ; Mb, can be a decimal ; when the outgoing bandwidth exceeds the limit, the block synchronization operation will not proceed outgoing_bandwidth_limit=2 [sdk_allowlist] ; When sdk_allowlist 参数包括： tx_count_limit/tx_gas_limit：单个区块中交易数量限制/单笔交易中可消耗 的 gas 限制 > ./console getSyncStatus Synchronization Status: { "blockNumber": 3, "genesisHash": "65e9c13da61b1f47564ccc6498260d739ce3dfd3366

群组2的群组配置示例如下： 共识配置 [consensus]涉及共识相关配置，包括： consensus_type：共识算法类型，目前支持PBFT，Raft和rPBFT，默认 使用PBFT共识算法； synchronization operation will not proceed outgoing_bandwidth_limit=5 [group] id=2 max_trans_num：一个区块可 [flow_control] ; Mb, can be a decimal ; when the outgoing bandwidth exceeds the limit, the block synchronization operation will not proceed outgoing_bandwidth_limit=2 [sdk_allowlist] ; When sdk_allowlist 参数包括： tx_count_limit/tx_gas_limit：单个区块中交易数量限制/单笔交易中可消耗 的 gas 限制 > ./console getSyncStatus Synchronization Status: { "blockNumber": 3, "genesisHash": "65e9c13da61b1f47564ccc6498260d739ce3dfd3366

群组2的群组配置示例如下： 共识配置 [consensus]涉及共识相关配置，包括： consensus_type：共识算法类型，目前支持PBFT，Raft和rPBFT，默认 使用PBFT共识算法； synchronization operation will not proceed outgoing_bandwidth_limit=5 [group] id=2 max_trans_num：一个区块可 [flow_control] ; Mb, can be a decimal ; when the outgoing bandwidth exceeds the limit, the block synchronization operation will not proceed outgoing_bandwidth_limit=2 [sdk_allowlist] ; When sdk_allowlist 参数包括： tx_count_limit/tx_gas_limit：单个区块中交易数量限制/单笔交易中可消耗 的 gas 限制 > ./console getSyncStatus Synchronization Status: { "blockNumber": 3, "genesisHash": "65e9c13da61b1f47564ccc6498260d739ce3dfd3366

群组2的群组配置示例如下： 共识配置 [consensus]涉及共识相关配置，包括： consensus_type：共识算法类型，目前支持PBFT，Raft和rPBFT，默认 使用PBFT共识算法； synchronization operation will not proceed outgoing_bandwidth_limit=5 [group] id=2 max_trans_num：一个区块可 [flow_control] ; Mb, can be a decimal ; when the outgoing bandwidth exceeds the limit, the block synchronization operation will not proceed outgoing_bandwidth_limit=2 [sdk_allowlist] ; When sdk_allowlist 933158c1bd3a0bf183d5498bf57202b88401e1cb20e8972aab43ba3354f0" ] > ./console getSyncStatus Synchronization Status: getSystemConfigByKey 根据关键字获取区块链系统配置： 参数包括： tx_count_limit/tx_gas_limit：单个区块中交易数量限制/单笔交易中可消耗