dosubot[bot] commented on issue #2833: URL: https://github.com/apache/incubator-hugegraph/issues/2833#issuecomment-3073299524
<!-- Answer --> HugeGraph 1.5.0 的 server 被称为“无状态”，意思是每个 server 节点本身不保存本地会话或事务状态，所有鉴权和图数据都存在后端存储（如 HStore、RocksDB、HBase 等），这样可以方便横向扩展和高可用。 但在分布式部署（尤其是 raft 模式或 HStore 后端）下，集群内部还是需要有“master”和“worker”角色的区分。原因是：master 节点负责集群的协调、任务调度、分布式作业的发起和管理（比如 schema 变更、图计算等），而 worker 节点主要负责具体的任务执行。这样可以避免冲突、保证顺序和一致性，也便于分布式任务的分工协作。即使 API 层是无状态的，集群层面还是需要有角色分工来实现一致性和高效调度，否则分布式任务和一致性协议（如 raft 选主、日志同步）无法正常运作。 配置文件中的 `server.role=master` 或 `server.role=worker` 就是用来标识节点角色的，实际代码和配置都明确支持这三种角色（master、worker、computer），详见 [ServerOptions.java](https://github.com/apache/incubator-hugegraph/blob/a53af864b31f803780a1db31cb20d3d94d5d34fc/hugegraph-server/hugegraph-api/src/main/java/org/apache/hugegraph/config/ServerOptions.java) 和 [rest-server.properties 示例](https://github.com/apache/incubator-hugegraph/blob/a53af864b31f803780a1db31cb20d3d94d5d34fc/hugegraph-server/hugegraph-dist/src/assembly/static/conf/rest-server.properties)。 简而言之，“无状态”是指 API 层不保存本地状态，但分布式集群的协调和任务调度仍然需要 master/worker 角色来保证系统的正确性和高效性。[相关讨论1](https://github.com/apache/incubator-hugegraph/issues/2790) [相关讨论2](https://github.com/apache/incubator-hugegraph/issues/2812) <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot).* --- <sup>How did I do? [Good](https://app.dosu.dev/response-feedback/06d2d6a4-dbf3-4918-af6b-af553035122f?feedback_type=great_response) | [Irrelevant](https://app.dosu.dev/response-feedback/06d2d6a4-dbf3-4918-af6b-af553035122f?feedback_type=irrelevant_answer) | [Incorrect](https://app.dosu.dev/response-feedback/06d2d6a4-dbf3-4918-af6b-af553035122f?feedback_type=incorrect_sources) | [Verbose](https://app.dosu.dev/response-feedback/06d2d6a4-dbf3-4918-af6b-af553035122f?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/06d2d6a4-dbf3-4918-af6b-af553035122f?feedback_type=hallucination) | [Report 🐛](https://app.dosu.dev/response-feedback/06d2d6a4-dbf3-4918-af6b-af553035122f?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/06d2d6a4-dbf3-4918-af6b-af553035122f?feedback_type=other)</sup> [](https://go.dosu.dev/discord-bot) [! [Share on X](https://img.shields.io/badge/X-share-black)](https://twitter.com/intent/tweet?text=%40dosu_ai%20helped%20me%20solve%20this%20issue!&url=https%3A//github.com/apache/incubator-hugegraph/issues/2833) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
