dosubot[bot] commented on issue #2869: URL: https://github.com/apache/incubator-hugegraph/issues/2869#issuecomment-3279533739
<!-- Answer --> 你的 JVM 堆内存 64GB 已经非常充足，不会是 1.5.0 查询变慢的根本原因。当前 HugeGraph 1.5.0 查询慢，主要还是和 hstore/集群模式的分布式调度、锁、后端通信、索引覆盖、缓存参数、RocksDB 配置等有关。建议重点排查： 1. 检查所有 where/has/filter 条件是否有二级或范围索引覆盖，避免全表扫描，schema 设计要覆盖高频查询路径 [参考](https://github.com/apache/incubator-hugegraph/issues/2836)。 2. 查询语句尽量减少多层 out()/in() 链式遍历，优先用 has() 精准过滤起点，并加 limit、分页，避免一次性拉取过多数据导致 OOM 或超时 [参考](https://github.com/apache/incubator-hugegraph/issues/2836)。 3. cache 参数（vertex/edge cache_capacity、cache_expire）可适当调大，提升缓存命中率，减少后端 IO [参考](https://github.com/apache/incubator-hugegraph/issues/2836)。 4. hstore/RocksDB 后端建议关注 max_background_jobs、write_buffer_size、block_cache_capacity、optimize_mode 等参数，充分利用你的内存和 CPU 资源 [参考](https://github.com/apache/incubator-hugegraph/issues/2786)。 5. 高并发场景下建议限制单次查询返回数据量，合理设置 memory.mode=off-heap，避免 JVM 堆和 native 内存争抢 [参考](https://github.com/apache/incubator-hugegraph/issues/2836)。 6. 用 Arthas 等工具分析慢查询瓶颈是在计算层还是存储层，定位是 FilterIterator、validateVertex/Edge 还是后端 IO [参考](https://github.com/apache/incubator-hugegraph/issues/2836)。 如需更细致定位，建议补充 schema 索引结构和 hstore 详细配置。 <!-- 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/e647bd88-4cfd-44f2-a385-4ca118214215?feedback_type=great_response) | [Irrelevant](https://app.dosu.dev/response-feedback/e647bd88-4cfd-44f2-a385-4ca118214215?feedback_type=irrelevant_answer) | [Incorrect](https://app.dosu.dev/response-feedback/e647bd88-4cfd-44f2-a385-4ca118214215?feedback_type=incorrect_sources) | [Verbose](https://app.dosu.dev/response-feedback/e647bd88-4cfd-44f2-a385-4ca118214215?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/e647bd88-4cfd-44f2-a385-4ca118214215?feedback_type=hallucination) | [Report 🐛](https://app.dosu.dev/response-feedback/e647bd88-4cfd-44f2-a385-4ca118214215?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/e647bd88-4cfd-44f2-a385-4ca118214215?feedback_type=other)</sup> [](https://app.dosu.dev/e5e246fa-a522-4d8a-ab3c-e2588b5b501b/ask?utm_source=githu b) [](https://go.dosu.dev/discord-bot) [](https://twitter.com/intent/tweet?text=%40dosu_ai%20helped%20me%20solve%20this%20issue!&url=https%3A//github.com/apache/incubator-hugegraph/issues/2869) -- 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
