[ https://issues.apache.org/jira/browse/DRILL-4785?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dechang Gu closed DRILL-4785. ----------------------------- verified with limit 0 queries. LGTM. > Limit 0 queries regressed in Drill 1.7.0 > ----------------------------------------- > > Key: DRILL-4785 > URL: https://issues.apache.org/jira/browse/DRILL-4785 > Project: Apache Drill > Issue Type: Bug > Components: Functions - Drill > Affects Versions: 1.7.0 > Environment: Redhat EL6 > Reporter: Dechang Gu > Assignee: Venki Korukanti > Fix For: 1.8.0 > > > We noticed a bunch of limit 0 queries regressed quite a bit: +2500ms, while > the same queries took ~400ms in Apache Drill 1.6.0. 5-6X regression. Further > investigation indicates that most likely the root cause of the regression is > in the commit: > vkorukanti committed with vkorukanti DRILL-4446: Support mandatory work > assignment to endpoint requirement… > commit id: 10afc708600ea9f4cb0e7c2cd981b5b1001fea0d > With drill build on this commit, query takes 3095ms > and in the drillbit.log: > 2016-07-15 17:27:55,048 ucs-node2.perf.lab > [28768074-4ed6-a70a-2e6a-add3201ab801:foreman] INFO > o.a.drill.exec.work.foreman.Foreman - Query text for query id > 28768074-4ed6-a70a-2e6a-add3201ab801: SELECT * FROM (SELECT > CAST(EXTRACT(MONTH FROM CAST(`rfm_sales`.`business_date` AS DATE)) AS > INTEGER) AS `mn_business_date_ok`,AVG((CASE WHEN ((CAST(EXTRACT(YEAR FROM > CAST(`rfm_sales`.`business_date` AS DATE)) AS INTEGER) = 2014) AND > (CAST((EXTRACT(MONTH FROM CAST(`rfm_sales`.`business_date` AS DATE)) - 1) / 3 > + 1 AS INTEGER) <= 4)) THEN `rfm_sales`.`pos_netsales` ELSE NULL END)) AS > `avg_Calculation_CIDBACJBCCCBHDGB_ok`,SUM((CASE WHEN ((CAST(EXTRACT(YEAR FROM > CAST(`rfm_sales`.`business_date` AS DATE)) AS INTEGER) = 2014) AND > (CAST((EXTRACT(MONTH FROM CAST(`rfm_sales`.`business_date` AS DATE)) - 1) / 3 > + 1 AS INTEGER) <= 4)) THEN `rfm_sales`.`pos_netsales` ELSE NULL END)) AS > `sum_Calculation_CIDBACJBCCCBHDGB_ok`,SUM((CASE WHEN ((CAST(EXTRACT(YEAR FROM > CAST(`rfm_sales`.`business_date` AS DATE)) AS INTEGER) = 2014) AND > (CAST((EXTRACT(MONTH FROM CAST(`rfm_sales`.`business_date` AS DATE)) - 1) / 3 > + 1 AS INTEGER) <= 4)) THEN 1 ELSE NULL END)) AS > `sum_Calculation_CJEBBAEBBFADBDFJ_ok`,SUM((CASE WHEN ((CAST(EXTRACT(YEAR FROM > CAST(`rfm_sales`.`business_date` AS DATE)) AS INTEGER) = 2014) AND > (CAST((EXTRACT(MONTH FROM CAST(`rfm_sales`.`business_date` AS DATE)) - 1) / 3 > + 1 AS INTEGER) <= 4)) THEN (`rfm_sales`.`pos_comps` + > `rfm_sales`.`pos_promos`) ELSE NULL END)) AS `sum_Net_Sales__YTD___copy__ok` > FROM `dfs.xxx`.`views/rfm_sales` `rfm_sales` GROUP BY CAST(EXTRACT(MONTH FROM > CAST(`rfm_sales`.`business_date` AS DATE)) AS INTEGER)) T LIMIT 0 > 2016-07-15 17:27:55,664 ucs-node2.perf.lab > [28768074-4ed6-a70a-2e6a-add3201ab801:foreman] INFO > o.a.d.exec.store.parquet.Metadata - Took 208 ms to read metadata from cache > file > 2016-07-15 17:27:56,783 ucs-node2.perf.lab > [28768074-4ed6-a70a-2e6a-add3201ab801:foreman] INFO > o.a.d.exec.store.parquet.Metadata - Took 129 ms to read metadata from cache > file > 2016-07-15 17:27:57,960 ucs-node2.perf.lab > [28768074-4ed6-a70a-2e6a-add3201ab801:frag:0:0] INFO > o.a.d.e.w.fragment.FragmentExecutor - > 28768074-4ed6-a70a-2e6a-add3201ab801:0:0: State change requested > AWAITING_ALLOCATION --> RUNNING > 2016-07-15 17:27:57,961 ucs-node2.perf.lab > [28768074-4ed6-a70a-2e6a-add3201ab801:frag:0:0] INFO > o.a.d.e.w.f.FragmentStatusReporter - > 28768074-4ed6-a70a-2e6a-add3201ab801:0:0: State to report: RUNNING > 2016-07-15 17:27:57,989 ucs-node2.perf.lab > [28768074-4ed6-a70a-2e6a-add3201ab801:frag:0:0] INFO > o.a.d.e.w.fragment.FragmentExecutor - > 28768074-4ed6-a70a-2e6a-add3201ab801:0:0: State change requested RUNNING --> > FINISHED > 2016-07-15 17:27:57,989 ucs-node2.perf.lab > [28768074-4ed6-a70a-2e6a-add3201ab801:frag:0:0] INFO > o.a.d.e.w.f.FragmentStatusReporter - > 28768074-4ed6-a70a-2e6a-add3201ab801:0:0: State to report: FINISHED > while running the same query on the parent commit (commit id > 9f4fff800d128878094ae70b454201f79976135d), it only takes 492ms. > and in the drillbit.log: > 2016-07-15 17:19:27,309 ucs-node7.perf.lab > [2876826f-ee19-9466-0c0c-869f47c409f8:foreman] INFO > o.a.drill.exec.work.foreman.Foreman - Query text for query id > 2876826f-ee19-9466-0c0c-869f47c409f8: SELECT * FROM (SELECT > CAST(EXTRACT(MONTH FROM CAST(`rfm_sales`.`business_date` AS DATE)) AS > INTEGER) AS `mn_business_date_ok`,AVG((CASE WHEN ((CAST(EXTRACT(YEAR FROM > CAST(`rfm_sales`.`business_date` AS DATE)) AS INTEGER) = 2014) AND > (CAST((EXTRACT(MONTH FROM CAST(`rfm_sales`.`business_date` AS DATE)) - 1) / 3 > + 1 AS INTEGER) <= 4)) THEN `rfm_sales`.`pos_netsales` ELSE NULL END)) AS > `avg_Calculation_CIDBACJBCCCBHDGB_ok`,SUM((CASE WHEN ((CAST(EXTRACT(YEAR FROM > CAST(`rfm_sales`.`business_date` AS DATE)) AS INTEGER) = 2014) AND > (CAST((EXTRACT(MONTH FROM CAST(`rfm_sales`.`business_date` AS DATE)) - 1) / 3 > + 1 AS INTEGER) <= 4)) THEN `rfm_sales`.`pos_netsales` ELSE NULL END)) AS > `sum_Calculation_CIDBACJBCCCBHDGB_ok`,SUM((CASE WHEN ((CAST(EXTRACT(YEAR FROM > CAST(`rfm_sales`.`business_date` AS DATE)) AS INTEGER) = 2014) AND > (CAST((EXTRACT(MONTH FROM CAST(`rfm_sales`.`business_date` AS DATE)) - 1) / 3 > + 1 AS INTEGER) <= 4)) THEN 1 ELSE NULL END)) AS > `sum_Calculation_CJEBBAEBBFADBDFJ_ok`,SUM((CASE WHEN ((CAST(EXTRACT(YEAR FROM > CAST(`rfm_sales`.`business_date` AS DATE)) AS INTEGER) = 2014) AND > (CAST((EXTRACT(MONTH FROM CAST(`rfm_sales`.`business_date` AS DATE)) - 1) / 3 > + 1 AS INTEGER) <= 4)) THEN (`rfm_sales`.`pos_comps` + > `rfm_sales`.`pos_promos`) ELSE NULL END)) AS `sum_Net_Sales__YTD___copy__ok` > FROM `dfs.xxx`.`views/rfm_sales` `rfm_sales` GROUP BY CAST(EXTRACT(MONTH FROM > CAST(`rfm_sales`.`business_date` AS DATE)) AS INTEGER)) T LIMIT 0 > 2016-07-15 17:19:27,619 ucs-node7.perf.lab > [2876826f-ee19-9466-0c0c-869f47c409f8:frag:0:0] INFO > o.a.d.e.w.fragment.FragmentExecutor - > 2876826f-ee19-9466-0c0c-869f47c409f8:0:0: State change requested > AWAITING_ALLOCATION --> RUNNING > 2016-07-15 17:19:27,619 ucs-node7.perf.lab > [2876826f-ee19-9466-0c0c-869f47c409f8:frag:0:0] INFO > o.a.d.e.w.f.FragmentStatusReporter - > 2876826f-ee19-9466-0c0c-869f47c409f8:0:0: State to report: RUNNING > 2016-07-15 17:19:27,643 ucs-node7.perf.lab > [2876826f-ee19-9466-0c0c-869f47c409f8:frag:0:0] INFO > o.a.d.e.w.fragment.FragmentExecutor - > 2876826f-ee19-9466-0c0c-869f47c409f8:0:0: State change requested RUNNING --> > FINISHED > 2016-07-15 17:19:27,644 ucs-node7.perf.lab > [2876826f-ee19-9466-0c0c-869f47c409f8:frag:0:0] INFO > o.a.d.e.w.f.FragmentStatusReporter - > 2876826f-ee19-9466-0c0c-869f47c409f8:0:0: State to report: FINISHED -- This message was sent by Atlassian JIRA (v6.3.4#6332)