Nebula Highlights 2021年十月上

[wey]

大家好，之后我会单周或者双周为大家更新 Nebula 社区开发的一些进展~

2021-10-04

感谢我们的社区贡献者！

Repo	Heroes	PR
nebula-java	hebelala	修复了 StorClient 关闭时候没有关闭 MetaManager 的问题 #344
nebula-spark-utils	Codelone @codelone	修复了 FileSystem closed 的问题#146
nebula-operator	hezhizhen	yaml 模块替换成了更适合的 sigs.k8s.io/yaml #59

感谢 MMyheart 同学为 nebula core 提交了几个 pushdown/index optimization 的 PR Pull requests · vesoft-inc/nebula · GitHub

文档

• SST 的一个重要的前提条件增加了 #967

• Docker-compose 下的升级步骤文档 #977

• 加入了最佳实践章节 #984

• explorer 线上演示同步加入文档中了 953

• 开始支持深色模式 PR 976 PR 733

• 测试及修改全文索引中match部分内容。#1007

• 搜索绑定认证支持多用户认证文档修改。#1011

• prefix bloom filter默认为开启。#1012

• show jobs只展示所在空间相关作业。#1013

• Exchange、Spark Connector、Algorithm发布v.2.5.1 相关文档。#1029

测试

• WIP, nebula graph zone 的自动化测试 https://github.com/HarrisChu/nebula/actions/runs/1282036391

Nebula Dashboard

• 发布 v1.0.2 https://github.com/vesoft-inc/nebula-dashboard/releases/tag/v1.0.2

  • bug fix
• • • Modifynebula-stats-exporter executable permission. #16
    • Disk the number of query results is inconsistent. #16

Core Features

• Better yield data format 进展中[QE]Better yield data format (in vertices and edges) · Issue #2594 · vesoft-inc/nebula · GitHub

  • Won’t be fixed in 2.6, may be included in 3.x due to compatibility
• • Merged Format subgraph #2555
  • Merged format fetchvertices #2572
  • Merged format fetchedges #2779
  • Merged format lookup #2895
  • WIP format find path format find path by nevermore3 · Pull Request #2957 · vesoft-inc/nebula · GitHub

• Support cypher parameter 进展中 support cypher parameter by czpmango · Pull Request #2798 · vesoft-inc/nebula · GitHub

• Index scan limit pushdown [Feature] index scan limit push down · Issue #2950 · vesoft-inc/nebula · GitHub

• 支持返回 JSON 数据

• • Nebula-go Support get the query result in Json format by Aiee · Pull Request #132 · vesoft-inc/nebula-go · GitHub merged
  • nebula-py Support return query result as a JSON string by Aiee · Pull Request #139 · vesoft-inc/nebula-python · GitHub merged
  • nebula Support return query result as a Json string by Aiee · Pull Request #2824 · vesoft-inc/nebula · GitHub merged

• 支持地理空间数据 Geo Spatial，WIP(Geo Spatial: 1. geography common by jievince · Pull Request #2954 · vesoft-inc/nebula · GitHub merged)

• • Pull requests · vesoft-inc/nebula · GitHub

问题修复：

Core

• 修复 Nebula 服务在容器中不显示版本号只显示 commit 号的问题 Fix version display in docker by Aiee · Pull Request #2856 · vesoft-inc/nebula · GitHub

• 修复 insert 语句 default value 的问题 (原因是表达式 encode 到 storaged 之后被多次执行导致不同 partition 数据不一致，比如 timestamp 等系统调用函数) fix insert edge by czpmango · Pull Request #2862 · vesoft-inc/nebula · GitHub

• SST 数据无法更新的问题： https://github.com/vesoft-inc/nebula/issues/2722
  这个问题原来是参数设定的问题: https://docs.nebula-graph.com.cn/2.5.1/nebula-exchange/use-exchange/ex-ug-import-from-sst/#4sst
  > Caution
  >
  > 如果需要导入SST文件至Nebula Graph 2.5.x中，请在Storage配置文件中添加–enable_vertex_cache =false，并重启Storage服务，才能正常导入SST文件，否则可能会出现没有覆盖旧数据的问题。导入后可以删除–enable_vertex_cache =false，该参数用于加速查询。

• Fixed: index query will crash when prop being filtered w/o tag Fix match start from edge. by CPWstatic · Pull Request #2996 · vesoft-inc/nebula · GitHub

Spark-Utils

• 解决csv数据导入存在的buffer覆盖问题 fix buffer overwrite bug by Nicole00 · Pull Request #155 · vesoft-inc/nebula-spark-utils · GitHub
• Exchange、Spark Connector、Algorithm发布v.2.5.1

Operator

• 修改 ImagePullPolicy 为 always update imagePullPolicy to Always by kqzh · Pull Request #70 · vesoft-inc/nebula-operator · GitHub
• 发布了新的版本v0.8.0 Release Nebula Operator v0.8.0 · vesoft-inc/nebula-operator · GitHub

新的功能

• • Operator is now built with nebula-go v2.5.0，adapt nebula v2.5.0 #67
  • Support pod template labels and annotations #36
  • Provide ngctl terminal tools to facilitate nebula cluster management #39, #38
  • Provide e2e testing framework #9

问题修复

• • Fix e2e fails to run due to lost vid_type #45
  • Fix helm charts fails to install while storageClassName is empty #44
  • Fix configure log level cannot take effect #40