........................................................... 22 6.2.2 MaxCompute DDL 与 Hive UDTF 生成 .......................................................................... 22 6.2.3 MaxCompute 表创建 meta-carrier 的输出，调整 hive 与 odps 的映射 ................................................... 46 7.1.5 生成 ODPS DDL、Hive SQL 以及兼容性报告 ................................................................. 48 7 查看兼容性报告，调整直到兼容性报告符合预期 ............................................................. 49 7.1.7 运行 odps_ddl_runner.py 生成 odps 表和分区 .............................................................. 50 7.1.8 运行 hive_udtf_sql_runner

Mds在分配空间时，轮流在不同的copyset中分配，每次从copyset中分配1个chunk， 这个chunk用copysetId:chunkId来唯一标识。COPYSET Copyset的生成策略：Source code : curve/src/mds/copyset/ bool GenCopyset(const ClusterInfo& cluster, int numCopysets 据集群中copyset的分布情况生成copyset迁移任 务； • LeaderScheduler 是leader均衡调度器，根据集 群中leader的分布情况生成leader变更任务； • ReplicaScheduler 是副本数量调度器，根据当 前copyset的副本数生成副本增删任务； • RecoverScheduler 是恢复调度器，根据当前 copyset副本的存活状态生成迁移任务。 触发任务： 触发任务： • RapidLeaderScheduler 是快速leader均衡器， 由外部触发，一次生成多个leader变更任务， 使得集群的leader尽快达到均衡状态。 rSCHEDULE • 集群负载和资源均衡 • leader copyset scatter-width • 无需人工干预 • 对io影响几乎无影响欢 迎 大 家 参 与 C U R V E 项 目 ！ • github主页：

t; use reqwest::Url; use scraper::{Html, Selector}; use thiserror::Error; enum Error { ReqwestError(#[from] reqwest::Error), BadResponse(String), } struct CrawlCommand { url: Url, extract_links: bool visit_page(client: &Client, command: &CrawlCommand) -> ResultUrl>, Error> { println!("Comprobando {:#}", command.url); let response = client.get(command.url.clone()).send()?; if !response.status().is_success() mut link_urls = Vec::new(); if !command.extract_links { return Ok(link_urls); } let base_url = response.url().to_owned(); let body_text = response.text()?; let document = Html::parse_document(&body_text);

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@startuml robust "Web Browser" as WB concise "Web User" as WU @0 WU is Idle WB is Idle @100 WU -> WB : URL WU is Waiting WB is Processing @300 WB is Waiting Guía de Referencia del Lenguaje PlantUML (1.2019 WU @0 WU is Idle WB is Idle DNS is Idle @+100 WU -> WB : URL WU is Waiting WB is Processing @+200 WB is Waiting WB -> DNS@+50 : Resolve URL @+100 DNS is Processing @+300 DNS is Idle @enduml Guía de : the file must be accessible by the filesystem • : the URL must be available from the Internet @startuml :* You can change text color * You

@startuml robust "Web Browser" as WB concise "Web User" as WU @0 WU is Idle WB is Idle @100 WU -> WB : URL WU is Waiting WB is Processing @300 WB is Waiting @enduml 9.4 Relative time It is possible to use -> WB : URL WU is Waiting WB is Processing Guía de Referencia del Lenguaje PlantUML (1.2020.23) 136 / 304 9.5 Anchor Points 9 TIMING DIAGRAM @+200 WB is Waiting WB -> DNS@+50 : Resolve URL @+100 DNS / 304 9.15 Adding texts 9 TIMING DIAGRAM @100 WU -> WB : URL WU is Waiting #LightCyan;line:Aqua @200 WB is Proc. @300 WU -> WB@350 : URL2 WB is Waiting @+200 WU is ok @+200 WB is Idle highlight

@startuml robust "Web Browser" as WB concise "Web User" as WU @0 WU is Idle WB is Idle @100 WU -> WB : URL WU is Waiting WB is Processing @300 WB is Waiting @enduml 9.4 Relative time It is possible to use -> WB : URL WU is Waiting WB is Processing Guía de Referencia del Lenguaje PlantUML (1.2020.22) 125 / 292 9.5 Anchor Points 9 TIMING DIAGRAM @+200 WB is Waiting WB -> DNS@+50 : Resolve URL @+100 DNS / 292 9.15 Adding texts 9 TIMING DIAGRAM @100 WU -> WB : URL WU is Waiting #LightCyan;line:Aqua @200 WB is Proc. @300 WU -> WB@350 : URL2 WB is Waiting @+200 WU is ok @+200 WB is Idle highlight

@startuml robust "Web Browser" as WB concise "Web User" as WU @0 WU is Idle WB is Idle @100 WU -> WB : URL WU is Waiting WB is Processing @300 WB is Waiting @enduml 10.4 Relative time It is possible to use -> WB : URL WU is Waiting WB is Processing @+200 WB is Waiting Guía de Referencia del Lenguaje PlantUML (1.2021.2) 175 / 388 10.5 Anchor Points 10 TIMING DIAGRAM WB -> DNS@+50 : Resolve URL @+100 DNS "Web User" as WU @0 WU is Idle WB is Idle @100 WU -> WB : URL WU is Waiting #LightCyan;line:Aqua @200 WB is Proc. @300 WU -> WB@350 : URL2 WB is Waiting @+200 WU is ok @+200 WB is Idle highlight

@startuml robust "Web Browser" as WB concise "Web User" as WU @0 WU is Idle WB is Idle @100 WU -> WB : URL WU is Waiting WB is Processing @300 WB is Waiting @enduml 10.4 Relative time It is possible to use -> WB : URL WU is Waiting WB is Processing @+200 WB is Waiting Guía de Referencia del Lenguaje PlantUML (1.2021.1) 173 / 383 10.5 Anchor Points 10 TIMING DIAGRAM WB -> DNS@+50 : Resolve URL @+100 DNS "Web User" as WU @0 WU is Idle WB is Idle @100 WU -> WB : URL WU is Waiting #LightCyan;line:Aqua @200 WB is Proc. @300 WU -> WB@350 : URL2 WB is Waiting @+200 WU is ok @+200 WB is Idle highlight

@startuml robust "Web Browser" as WB concise "Web User" as WU @0 WU is Idle WB is Idle @100 WU -> WB : URL WU is Waiting WB is Processing @300 WB is Waiting @enduml 10.4 Relative time It is possible to use WU @0 WU is Idle WB is Idle DNS is Idle @+100 WU -> WB : URL WU is Waiting WB is Processing @+200 WB is Waiting WB -> DNS@+50 : Resolve URL @+100 DNS is Processing @+300 DNS is Idle @enduml Guía de notes 10 TIMING DIAGRAM WU is Idle WB is Idle @100 WU -> WB : URL WU is Waiting #LightCyan;line:Aqua @200 WB is Proc. @300 WU -> WB@350 : URL2 WB is Waiting @+200 WU is ok @+200 WB is Idle highlight