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https://issues.apache.org/jira/browse/HIVE-15396?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sahil Takiar updated HIVE-15396:
--------------------------------
Summary: Basic Stats are not collected when for managed tables with
LOCATION specified (was: Basic Stats are not collected when running INSERT
INTO commands on s3a)
> Basic Stats are not collected when for managed tables with LOCATION specified
> -----------------------------------------------------------------------------
>
> Key: HIVE-15396
> URL: https://issues.apache.org/jira/browse/HIVE-15396
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: Sahil Takiar
> Assignee: Sahil Takiar
> Attachments: HIVE-15396.1.patch
>
>
> {{numRows}} is not collected when running {{INSERT ... INTO ...}} commands
> against tables backed by S3 (and maybe even other blobstores).
> The COLUMN_STATS_ACCURATE={"BASIC_STATS":"true"} entry is missing from the
> {{describe extended}} output.
> Repro steps:
> {code}
> hive> drop table s3_table;
> OK
> Time taken: 1.87 seconds
> hive> create table s3_table (col int) location
> 's3a://[bucket-name]/stats-test/';
> OK
> Time taken: 3.069 seconds
> hive> insert into s3_table values (1), (2), (3);
> WARNING: Hive-on-MR is deprecated in Hive 2 and may not be available in the
> future versions. Consider using a different execution engine (i.e. spark,
> tez) or using Hive 1.X releases.
> Query ID = stakiar_20161208160105_fb3df340-d5fb-4ad6-8776-4f3cae02216d
> Total jobs = 3
> Launching Job 1 out of 3
> Number of reduce tasks is set to 0 since there's no reduce operator
> Job running in-process (local Hadoop)
> 2016-12-08 16:01:12,741 Stage-1 map = 0%, reduce = 0%
> 2016-12-08 16:01:16,759 Stage-1 map = 100%, reduce = 0%
> Ended Job = job_local688636529_0004
> Stage-4 is selected by condition resolver.
> Stage-3 is filtered out by condition resolver.
> Stage-5 is filtered out by condition resolver.
> Loading data to table default.s3_table
> MapReduce Jobs Launched:
> Stage-Stage-1: HDFS Read: 0 HDFS Write: 0 SUCCESS
> Total MapReduce CPU Time Spent: 0 msec
> OK
> Time taken: 23.0 seconds
> hive> select * from s3_table;
> OK
> 1
> 2
> 3
> Time taken: 0.096 seconds, Fetched: 3 row(s)
> hive> describe extended s3_table;
> OK
> col int
> Detailed Table Information Table(tableName:s3_table, dbName:default,
> owner:stakiar, createTime:1481241657, lastAccessTime:0, retention:0,
> sd:StorageDescriptor(cols:[FieldSchema(name:col, type:int, comment:null)],
> location:s3a://[bucket-name]/stats-test,
> inputFormat:org.apache.hadoop.mapred.TextInputFormat,
> outputFormat:org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat,
> compressed:false, numBuckets:-1, serdeInfo:SerDeInfo(name:null,
> serializationLib:org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe,
> parameters:{serialization.format=1}), bucketCols:[], sortCols:[],
> parameters:{}, skewedInfo:SkewedInfo(skewedColNames:[], skewedColValues:[],
> skewedColValueLocationMaps:{}), storedAsSubDirectories:false),
> partitionKeys:[], parameters:{transient_lastDdlTime=1481241687, totalSize=6,
> numFiles=1}, viewOriginalText:null, viewExpandedText:null,
> tableType:MANAGED_TABLE)
> Time taken: 0.037 seconds, Fetched: 3 row(s)
> {code}
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