Cloud Tools for Java ## Containers “Write once, run anywhere” ## Building a Java container  ## Me Java Developer Building Cloud ## Google Build Java Docker image  Google Search I'm Feeling Lucky ## Baidu百度 构建Java镜像 百度一下 ## So I read some ppa:webupd8team/java RUN echo "oracle-java8-installer shared/accepted-oracle-license-v1-1 boolean true" debconf-set-selections RUN apt-get update && apt-get install -y oracle-java8-installer

降级、限流应用容器化 客户端自动容错 通用注册中心 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 系统拆分 PHP API + Java后端服务 监控平台 异步调用平台 配置中心 并行调用代理 多语言发布代理 服务鉴权 多机房调度 Service Mesh 架构落地 压测平台 MOA 1.0微服务体系演进历程 微服务体系的其他产品也均为自研方案 ### MOA 1.0微服务体系整体架构 ## 注册中心 • Redis作为底层存储 • 跨语言地址发现服务Lookup • 中心化存活检测 ## 多语言支持 • Java、PHP、Python、Go、NodeJs • Redis传输协议 / 复用Redis客户端 • 服务发布Proxy / 并行调用Proxy ## 服务治理 • 服务治理平台、配置中心 监控、日志、分布式跟踪 地址查询服务（Lookup） 查询 注册中心 MomoKeeper Redis PHP Client Python Client Java Client 订阅→ Redis Redis Java MOA Proxy Java Server PHP Server Java MOA Proxy 注册 Python Server 服务治理平台 监控平台 并行调用代理 MOA Watcher

interface that allows end users to use a thrift client(cross-language support, both tcp and http), a Java Database Connectivity(JDBC) interface over thrift, or an Open Database Connectivity (ODBC) interface So, the JRE needs to be pre-installed and the $ JAVA\_HOME $ is correctly set to each component. |Component|Role|Version|Remarks| |---|---|---|---| |Java|JRE|8/11|Officially released against JDK8| |Kyuubi|Gateway are examples of the parameters necessary for a quick start with Spark. • JAVA_HOME $ echo 'export JAVA_HOME=/path/to/java' >> conf/kyuubi-env.sh • SPARK_HOME $ echo 'export SPARK_

... 22 1.3.1 Installation issues ..... 22 1.3.1.1 O1: Scala Dependency ..... 22 1.3.1.2 O2: Java gateway process exited before sending its port number ..... 22 1.3.2 Usage issues ..... 24 1.3 InaccessibleObjectException: Unable to make field private final byte[] java.lang.String.value accessible: module java.base does not “opens java.lang” to unnamed module @4e4aea35 ..... 25 1.3.4 Connector issues 20:43 flink-shaded-zookeeper-3.5.9.jar # -rw-r--r-- 1 dianfu staff 15M 10 18 20:43 flink-table-api-java-uber-1.15.2.jar # -rw-r--r-- 1 dianfu staff 35M 10 18 20:43 flink-table-planner-loader-1.15.2.jar

... 22 1.3.1 Installation issues ..... 22 1.3.1.1 O1: Scala Dependency ..... 22 1.3.1.2 O2: Java gateway process exited before sending its port number ..... 22 1.3.2 Usage issues ..... 24 1.3 InaccessibleObjectException: Unable to make field private final byte[] java.lang.String.value accessible: module java.base does not “opens java.lang” to unnamed module @4e4aea35 ..... 25 1.3.4 Connector issues 20:43 flink-shaded-zookeeper-3.5.9.jar # -rw-r--r-- 1 dianfu staff 15M 10 18 20:43 flink-table-api-java-uber-1.15.2.jar # -rw-r--r-- 1 dianfu staff 35M 10 18 20:43 flink-table-planner-loader-1.15.2.jar

permissions. ## EASE OF USE You only need to be familiar with Structured Query Language (SQL) and Java Database Connectivity (JDBC) to handle massive data. It helps you focus on the design and implementation components required for Kyuubi to startup. For quick start deployment, the only thing you need is JAVA_HOME being correctly set. The Kyuubi release package you downloaded or built contains the rest prerequisites sure is that your java runtime environment is correct. ## Setup JAVA You can either set it system-widely, e.g. in the .bashrc file. java -version java version "1.8.0_251" Java(TM) SE Runtime Environment

permissions. ## EASE OF USE You only need to be familiar with Structured Query Language (SQL) and Java Database Connectivity (JDBC) to handle massive data. It helps you focus on the design and implementation components required for Kyuubi to startup. For quick start deployment, the only thing you need is JAVA_HOME being correctly set. The Kyuubi release package you downloaded or built contains the rest prerequisites sure is that your java runtime environment is correct. ## Setup JAVA You can either set it system-widely, e.g. in the .bashrc file. java -version java version "1.8.0_251" Java(TM) SE Runtime Environment

permissions. ## EASE OF USE You only need to be familiar with Structured Query Language (SQL) and Java Database Connectivity (JDBC) to handle massive data. It helps you focus on the design and implementation components required for Kyuubi to startup. For quick start deployment, the only thing you need is JAVA_HOME and SPARK_HOME being correctly set. The Kyuubi release package you downloaded or built contains that your java runtime environment and SPARK_HOME are correct. ## Setup JAVA You can either set it system-widely, e.g. in the .bashrc file. java -version java version "1.8.0_251" Java(TM) SE Runtime

permissions. ## EASE OF USE You only need to be familiar with Structured Query Language (SQL) and Java Database Connectivity (JDBC) to handle massive data. It helps you focus on the design and implementation components required for Kyuubi to startup. For quick start deployment, the only thing you need is JAVA_HOME and SPARK_HOME being correctly set. The Kyuubi release package you downloaded or built contains that your java runtime environment and SPARK_HOME are correct. ## Setup JAVA You can either set it system-widely, e.g. in the .bashrc file. java -version java version "1.8.0_251" Java(TM) SE Runtime

permissions. ## Ease of Use You only need to be familiar with Structured Query Language (SQL) and Java Database Connectivity (JDBC) to handle massive data. It helps you focus on the design and implementation components required for Kyuubi to startup. For quick start deployment, the only thing you need is JAVA_HOME being correctly set. The Kyuubi release package you downloaded or built contains the rest prerequisites |Components|Role|Optional|Version|Remarks| |---|---|---|---|---| |Java|Java Runtime Environment|Required|1.8|Kyuubi is pre-built with Java 1.8| |Spark|Distribute SQL Engine|Optional|3.0 and above|By default