LZ4 压缩 单节点 存储结构设计 0 10 50 55 80 Journal 0 10 50 55 80 Index 0 134217342 268433156 402653853 0 536870912 … 512K 1024K … 0 512K 1024K … 0 512K 1024K … Journal files Index files Partition 0 Partition ResponseThreads 发送响应 Journal Cache Journal Files 线程模型 集群 · 架构 没有最好的架构，只有最合适的架构 取 · 舍 学会 ⽅得始终 取 舍 从实用角度出发，如何取舍？ Consistency ⼀一致性 Availability 可⽤用性 Performance 性能 例⼦ ⽤用Redis给MySQL做缓存 faa = FetchAndAdd, cas = CompareAndSwap “Confluo: Distributed Monitoring and Diagnosis Stack for High-speed Networks” Anurag Khandelwal, Rachit Agarwal 基于位置的异步复制 Sorted requests queue Request handler

such as live kernel upgrade and tiered memory expansion. These features improve multi-core performance and deliver the computing power of one thousand cores. Fast forward to September 30, 2021, openEuler lifecycle management based on innovative versions. Each LTS version has a relatively stable performance, reliability, and compatibility. Innovative versions: released every half a year between LTS directories to accelerate file metadata synchronization and thus improve file read and write performance. • Tiered memory expansion etMem: With the user-mode swap function, the discarded cold memory

由集群中运行的用户应用程序生成的容器日志（基础架构容器应用程序除外）。 infrastructure - 在集群和 OpenShift Container Platform 节点上运行的基础架构组件生成的日 志，如 journal 日志。基础架构组件是在 openshift*、kube* 或 default 项目中运行的 pod。 audit - 由 auditd 生成的日志，节点审计系统存储在 /var/log/audit/audit 描述。Elasticsearch 无法使用原始块卷。 OpenShift Elasticsearch Operator 使用 Elasticsearch 资源名称为 PVC 命名。 Fluentd 将 systemd journal 和 /var/log/containers/ 的所有日志都传输到 Elasticsearch。 Elasticsearch 需要足够内存来执行大型合并操作。如果没有足够的内存，它将会变得无响应。要避免这个 输出示例 出示例 片刻后，原始 Kibana Pod 将被删除。 输 输出示例 出示例 4.9. 配置 SYSTEMD-JOURNALD 和 FLUENTD Fluentd 需要从日志 (journal) 中读取数据。因为日志默认设置非常低，它可能无法跟上系统服务的日志记 录率，所以日志条目可能会丢失。 我们推荐设置 RateLimitIntervalSec=30s 和 RateLimitBurst=10000

Message Messa e Filter Server Triggered Redelivery Message Storage Message Retroactive essage Priority High Availability and Failover Message Track Configuration anagement and Operation Tools ActiveMQ Java Supported Supported Not Supported Supports very fast p rsistence using JDBC along with a high performance journal，such as levelDB, kahaDB S pported Supported Supported, depending on storage,if using kahadb async producer Not Supported upported, you can use Kafka Streams to filter messages Not Supported High perfo mance file storage Supported offset indicate Not Supported Supported, requi es a ZooKeeper

由集群中运行的用户应用程序生成的容器日志（基础架构容器应用程序除外）。 infrastructure - 在集群和 OpenShift Container Platform 节点上运行的基础架构组件生成的日 志，如 journal 日志。基础架构组件是在 openshift*、kube* 或 default 项目中运行的 pod。 audit - 由节点审计系统 (auditd) 生成的日志，这些日志保存在 /var/log/audit/audit 描述。Elasticsearch 无法使用原始块卷。 OpenShift Elasticsearch Operator 使用 Elasticsearch 资源名称为 PVC 命名。 Fluentd 将 systemd journal 和 /var/log/containers/ 的所有日志都传输到 Elasticsearch。 Elasticsearch 需要足够内存来执行大型合并操作。如果没有足够的内存，它将会变得无响应。要避免这个 Platform 4.7 日志 日志记录 记录 74 1 2 输 输出示例 出示例 4.9. 配置 SYSTEMD-JOURNALD 和 FLUENTD Fluentd 需要从日志 (journal) 中读取数据。因为日志默认设置非常低，它可能无法跟上系统服务的日志记 录率，所以日志条目可能会丢失。 我们推荐设置 RateLimitIntervalSec=30s 和 RateLimitBurst=10000

to a cache. Otherwise the system will be forced to swap out memory, which will likely degrade performance. Operating System Caching Almost all modern operating systems cache file-data in memory managed over Apache's in-memory caching which has no way of knowing when a file has changed. Despite the performance and advantages of automatic operating system caching there are some circumstances in which in-memory order to effectively manage a web server, it is necessary to get feedback about the activity and performance of the server as well as any problems that may be occurring. The Apache HTTP Server provides very

to a cache. Otherwise the system will be forced to swap out memory, which will likely degrade performance. Operating System Caching Almost all modern operating systems cache file-data in memory managed over Apache's in-memory caching which has no way of knowing when a file has changed. Despite the performance and advantages of automatic operating system caching there are some circumstances in which in-memory order to effectively manage a web server, it is necessary to get feedback about the activity and performance of the server as well as any problems that may be occurring. The Apache HTTP Server provides very

to a cache. Otherwise the system will be forced to swap out memory, which will likely degrade performance. Operating System Caching Almost all modern operating systems cache file-data in memory managed over Apache's in-memory caching which has no way of knowing when a file has changed. Despite the performance and advantages of automatic operating system caching there are some circumstances in which in-memory order to effectively manage a web server, it is necessary to get feedback about the activity and performance of the server as well as any problems that may be occurring. The Apache HTTP Server provides very

to a cache. Otherwise the system will be forced to swap out memory, which will likely degrade performance. Operating System Caching Almost all modern operating systems cache file-data in memory managed over Apache's in-memory caching which has no way of knowing when a file has changed. Despite the performance and advantages of automatic operating system caching there are some circumstances in which in-memory order to effectively manage a web server, it is necessary to get feedback about the activity and performance of the server as well as any problems that may be occurring. The Apache HTTP Server provides very