dosubot[bot] commented on issue #2800: URL: https://github.com/apache/incubator-hugegraph/issues/2800#issuecomment-2969189544
<!-- Greeting --> Hi @laMastor! I'm [Dosu](https://go.dosu.dev/dosubot) and I’m helping the incubator-hugegraph team. <!-- Answer --> HugeGraph 的 Java 客户端（GraphManager、GremlinManager）本身并不支持传统的本地事务（如 session、begin/commit/rollback），每个 REST API 调用在服务端是原子的，但多步操作（比如一个方法里新增和删除多个节点）的一致性需要你在应用层自行保证。如果你需要“要么全部成功，要么全部失败”的效果，可以考虑： 1. 尽量用 GremlinManager 执行一段 Gremlin 脚本，把所有操作（新增、删除）写在同一个脚本里，这样 HugeGraph 会在服务端以事务方式执行，支持原子性（前提是后端存储支持）； 2. 如果用 GraphManager 逐条调用 REST API，则每个操作是独立原子的，无法保证多步操作的整体一致性。你只能通过应用层补偿（比如失败时回滚已成功的操作）来实现伪事务； 3. 注意操作完成后及时关闭连接，避免未关闭的事务导致 RocksDB 锁未释放等问题，必要时可用 `closeTx` 方法主动关闭事务，防止锁文件残留，影响后续操作【参考讨论】([issue 2712](https://github.com/apache/incubator-hugegraph/issues/2712))。 代码层面，GremlinManager 示例（伪代码）： ```java String gremlin = "g.addV('person').property('name','A'); g.V().has('person','name','B').drop()"; Object result = gremlinManager.execute(gremlin); ``` 这样所有操作要么一起成功，要么一起失败。如果用 GraphManager： ```java try { graphManager.addVertex(...); graphManager.removeVertex(...); // 这里每一步都是独立的，失败不会自动回滚 } catch (Exception e) { // 需要你自己补偿/回滚 } ``` 总结：如果需要强事务，建议用 GremlinManager 执行批量脚本；GraphManager 只能保证单步原子性，多步一致性需应用层处理。REST API 本身是无状态的，不支持接口级事务控制，事务特性取决于后端和操作方式。[相关源码分析](https://github.com/apache/incubator-hugegraph-toolchain/blob/9696d78e4d0b6e10d4e3382248fd8bda61295a91/hugegraph-client/src/main/java/org/apache/hugegraph/client/RestClient.java) <!-- 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/6a7cbbc7-0a62-4ddf-b4f8-aec699b0fc78?feedback_type=great_response) | [Irrelevant](https://app.dosu.dev/response-feedback/6a7cbbc7-0a62-4ddf-b4f8-aec699b0fc78?feedback_type=irrelevant_answer) | [Incorrect](https://app.dosu.dev/response-feedback/6a7cbbc7-0a62-4ddf-b4f8-aec699b0fc78?feedback_type=incorrect_sources) | [Verbose](https://app.dosu.dev/response-feedback/6a7cbbc7-0a62-4ddf-b4f8-aec699b0fc78?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/6a7cbbc7-0a62-4ddf-b4f8-aec699b0fc78?feedback_type=hallucination) | [Report 🐛](https://app.dosu.dev/response-feedback/6a7cbbc7-0a62-4ddf-b4f8-aec699b0fc78?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/6a7cbbc7-0a62-4ddf-b4f8-aec699b0fc78?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/2800) -- 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: issues-unsubscr...@hugegraph.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@hugegraph.apache.org For additional commands, e-mail: issues-h...@hugegraph.apache.org
