Details
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Bug
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Status: Resolved
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Blocker
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Resolution: Fixed
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0.13.0, 0.14.0
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None
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None
Description
I tried the following query today ...
set mapred.job.map.memory.mb=2048; set mapred.job.reduce.memory.mb=2048; set mapred.map.child.java.opts=-server -Xmx3072m -Djava.net.preferIPv4Stack=true; set mapred.reduce.child.java.opts=-server -Xmx3072m -Djava.net.preferIPv4Stack=true; set mapred.reduce.tasks=60; set hive.stats.autogather=false; set hive.exec.parallel=false; set hive.enforce.bucketing=true; set hive.enforce.sorting=true; set hive.map.aggr=true; set hive.optimize.bucketmapjoin=true; set hive.optimize.bucketmapjoin.sortedmerge=true; set hive.mapred.reduce.tasks.speculative.execution=false; set hive.auto.convert.join=true; set hive.auto.convert.sortmerge.join=true; set hive.auto.convert.sortmerge.join.noconditionaltask=false; set hive.auto.convert.join.noconditionaltask=false; set hive.auto.convert.join.noconditionaltask.size=100000000; set hive.optimize.reducededuplication=true; set hive.optimize.reducededuplication.min.reducer=1; set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; set hive.mapjoin.smalltable.filesize=45000000; set hive.optimize.index.filter=false; set hive.vectorized.execution.enabled=false; set hive.optimize.correlation=false; select i_item_id, s_state, avg(ss_quantity) agg1, avg(ss_list_price) agg2, avg(ss_coupon_amt) agg3, avg(ss_sales_price) agg4 FROM store_sales JOIN date_dim on (store_sales.ss_sold_date_sk = date_dim.d_date_sk) JOIN item on (store_sales.ss_item_sk = item.i_item_sk) JOIN customer_demographics on (store_sales.ss_cdemo_sk = customer_demographics.cd_demo_sk) JOIN store on (store_sales.ss_store_sk = store.s_store_sk) where cd_gender = 'F' and cd_marital_status = 'U' and cd_education_status = 'Primary' and d_year = 2002 and s_state in ('GA','PA', 'LA', 'SC', 'MI', 'AL') group by i_item_id, s_state with rollup order by i_item_id, s_state limit 100;
The log shows ...
14/03/14 17:05:02 INFO plan.ConditionalResolverCommonJoin: Failed to resolve driver alias (threshold : 45000000, length mapping : {store=94175, store_sales=48713909726, item=39798667, customer_demographics=1660831, date_dim=2275902}) Stage-27 is filtered out by condition resolver. 14/03/14 17:05:02 INFO exec.Task: Stage-27 is filtered out by condition resolver. Stage-28 is filtered out by condition resolver. 14/03/14 17:05:02 INFO exec.Task: Stage-28 is filtered out by condition resolver. Stage-3 is selected by condition resolver.
Stage-3 is a reduce join. Actually, the resolver should pick the map join