DSE Graph - 如何从 Gremlin 查询中查看底层 Cassandra 查询？

Question

如果我在 gremlin-console 中执行 gremlin 查询，有没有办法查看 DSE Graph 生成的 Cassandra 查询？

Answer 1

DSE Graph 为 TinkerPop profile() step 的结果提供了一组扩展属性 - 这是输出示例：

gremlin> g.V().has('recipe','name','spaghetti').profile()
==>Traversal Metrics
Step                                                               Count  Traversers       Time (ms)    % Dur
=============================================================================================================
DsegGraphStep([~label.=(recipe), name.=(spaghet...                     1           1          97.087    81.00
  query-optimizer                                                                             22.802
    \_condition=(((label = recipe) & (true)) & name = spaghetti)
  query-setup                                                                                  1.134
    \_isFitted=true
    \_isSorted=false
    \_isScan=false
  index-query                                                                                 19.838
    \_indexType=Secondary
    \_usesCache=false
    \_statement=SELECT "community_id", "member_id" FROM "junk"."recipe_p" WHERE "name" = ? LIMIT ?; with para
                ms (java.lang.String) spaghetti, (java.lang.Integer) 50000
    \_options=Options{consistency=Optional[ONE], serialConsistency=Optional.empty, fallbackConsistency=Option
              al.empty, pagingState=null, pageSize=-1, user=Optional.empty, waitForSchemaAgreement=true, asyn
              c=true}
DsegPropertyLoadStep                                                   1           1          22.772    19.00
                                            >TOTAL                     -           -         119.860        -

Answer 2

斯蒂芬是正确的。此功能是在 5.1.2 中添加的。您将在 5.1.2 的发行说明中看到 JIRA (DSP-13293)。您使用的是什么版本？

DSE Graph - 如何从 Gremlin 查询中查看底层 Cassandra 查询？

DSE Graph - How to see the underlying Cassandra queries from Gremlin queries?

datastax-enterprise

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