数据状态改为COMMITED • publish 版本 • 状态改为 VISIBLE Request-to-prepare Commit/Abort Done Coordinator Participant Prepare Phase Commit Phase Prepare Txn • 创建事务 • 规划导入执行计划 • 分发子任务 03 Doris 中的导入 FE Leader

统，由一个全局的 事务管理器协调各个子系统的局部事务管理器完成两阶段提交 ● 广泛应用于商业分布式数据库 ❏ A节点是事务的协调者（coordinator） ❏ B和C是事务的参与者（participant） 24 两阶段提交与日志操作 写日志 写日志 日志落盘 写日志 记录日志 日志落盘 记录日志

0 码力 | 42 页 | 2.12 MB | 1 年前

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HashBatchAllocate Waiting for an elected Parallel Hash participant to allocate a hash table. HashBatchElect Waiting to elect a Parallel Hash participant to allo- cate a hash table. HashBatchLoad Waiting HashBuildAllocate Waiting for an elected Parallel Hash participant to allocate the initial hash table. HashBuildElect Waiting to elect a Parallel Hash participant to allo- cate the initial hash table. HashBuildHashInner HashGrowBatchesAllocate Waiting for an elected Parallel Hash participant to allocate more batches. HashGrowBatchesDecide Waiting to elect a Parallel Hash participant to de- cide on future batch growth. HashGrowBatchesElect

HashBatchAllocate Waiting for an elected Parallel Hash participant to allocate a hash table. HashBatchElect Waiting to elect a Parallel Hash participant to al- locate a hash table. HashBatchLoad Waiting HashBuildAllocate Waiting for an elected Parallel Hash participant to allocate the initial hash table. HashBuildElect Waiting to elect a Parallel Hash participant to al- locate the initial hash table. HashBuildHashInner HashGrowBatchesAllocate Waiting for an elected Parallel Hash participant to allocate more batches. HashGrowBatchesDecide Waiting to elect a Parallel Hash participant to decide on future batch growth. HashGrowBatchesElect

HashBatchAllocate Waiting for an elected Parallel Hash participant to allocate a hash table. HashBatchElect Waiting to elect a Parallel Hash participant to al- locate a hash table. HashBatchLoad Waiting HashBuildAllocate Waiting for an elected Parallel Hash participant to allocate the initial hash table. HashBuildElect Waiting to elect a Parallel Hash participant to al- locate the initial hash table. HashBuildHashInner HashGrowBatchesAllocate Waiting for an elected Parallel Hash participant to allocate more batches. HashGrowBatchesDecide Waiting to elect a Parallel Hash participant to decide on future batch growth. HashGrowBatchesElect

HashBatchAllocate Waiting for an elected Parallel Hash participant to allocate a hash table. HashBatchElect Waiting to elect a Parallel Hash participant to allo- cate a hash table. HashBatchLoad Waiting HashBuildAllocate Waiting for an elected Parallel Hash participant to allocate the initial hash table. HashBuildElect Waiting to elect a Parallel Hash participant to allo- cate the initial hash table. HashBuildHashInner HashGrowBatchesAllocate Waiting for an elected Parallel Hash participant to allocate more batches. HashGrowBatchesDecide Waiting to elect a Parallel Hash participant to de- cide on future batch growth. HashGrowBatchesElect

HashBatchAllocate Waiting for an elected Parallel Hash participant to allocate a hash table. HashBatchElect Waiting to elect a Parallel Hash participant to allo- cate a hash table. HashBatchLoad Waiting HashBuildAllocate Waiting for an elected Parallel Hash participant to allocate the initial hash table. HashBuildElect Waiting to elect a Parallel Hash participant to allo- cate the initial hash table. HashBuildHashInner Parallel Hash participant to de- cide on future batch growth. 848 Monitoring Database Activity IPC Wait Event Description HashGrowBatchesElect Waiting to elect a Parallel Hash participant to allo- cate

HashBatchAllocate Waiting for an elected Parallel Hash participant to allocate a hash table. HashBatchElect Waiting to elect a Parallel Hash participant to al- locate a hash table. HashBatchLoad Waiting HashBuildAllocate Waiting for an elected Parallel Hash participant to allocate the initial hash table. HashBuildElect Waiting to elect a Parallel Hash participant to al- locate the initial hash table. HashBuildHashInner HashGrowBatchesDecide Waiting to elect a Parallel Hash participant to decide on future batch growth. HashGrowBatchesElect Waiting to elect a Parallel Hash participant to al- locate more batches. HashGrowBatchesFinish

HashBatchAllocate Waiting for an elected Parallel Hash participant to allocate a hash table. HashBatchElect Waiting to elect a Parallel Hash participant to al- locate a hash table. HashBatchLoad Waiting HashBuildAllocate Waiting for an elected Parallel Hash participant to allocate the initial hash table. HashBuildElect Waiting to elect a Parallel Hash participant to al- locate the initial hash table. HashBuildHashInner HashGrowBatchesAllocate Waiting for an elected Parallel Hash participant to allocate more batches. HashGrowBatchesDecide Waiting to elect a Parallel Hash participant to decide on future batch growth. HashGrowBatchesElect

HashBatchAllocate Waiting for an elected Parallel Hash participant to allocate a hash table. HashBatchElect Waiting to elect a Parallel Hash participant to allo- cate a hash table. HashBatchLoad Waiting HashBuildAllocate Waiting for an elected Parallel Hash participant to allocate the initial hash table. HashBuildElect Waiting to elect a Parallel Hash participant to allo- cate the initial hash table. HashBuildHashInner HashGrowBatchesAllocate Waiting for an elected Parallel Hash participant to allocate more batches. HashGrowBatchesDecide Waiting to elect a Parallel Hash participant to de- cide on future batch growth. HashGrowBatchesElect