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Posted to dev@atlas.apache.org by "Madhan Neethiraj (JIRA)" <ji...@apache.org> on 2018/06/16 06:25:00 UTC
[jira] [Updated] (ATLAS-641) Lineage for a view created from a view
seems to be confusing(from user's perspective).
[ https://issues.apache.org/jira/browse/ATLAS-641?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Madhan Neethiraj updated ATLAS-641:
-----------------------------------
Attachment: ATLAS-641.patch
> Lineage for a view created from a view seems to be confusing(from user's perspective).
> --------------------------------------------------------------------------------------
>
> Key: ATLAS-641
> URL: https://issues.apache.org/jira/browse/ATLAS-641
> Project: Atlas
> Issue Type: Bug
> Affects Versions: 0.8.1, 0.8.2, 1.0.0
> Reporter: Ayub Pathan
> Assignee: Madhan Neethiraj
> Priority: Major
> Fix For: 0.8.3, 1.1.0, 2.0.0
>
> Attachments: ATLAS-641.patch
>
>
> Lineage for a table created from the view seems to be confusing(from user's perspective).
> Steps to reproduce:
> {noformat}
> 0: jdbc:hive2://localhost:10000/default>
> 0: jdbc:hive2://localhost:10000/default> create table src (x int, y int, s string);
> No rows affected (0.384 seconds)
> 0: jdbc:hive2://localhost:10000/default> create view view1 as select * from src;
> No rows affected (0.225 seconds)
> 0: jdbc:hive2://localhost:10000/default> create table view_table as select * from view1;
> INFO : Number of reduce tasks is set to 0 since there's no reduce operator
> INFO : number of splits:1
> INFO : Submitting tokens for job: job_local1883260823_0021
> INFO : The url to track the job: http://localhost:8080/
> INFO : Job running in-process (local Hadoop)
> INFO : 2016-04-06 18:15:02,538 Stage-1 map = 100%, reduce = 0%
> INFO : Ended Job = job_local1883260823_0021
> INFO : Stage-4 is selected by condition resolver.
> INFO : Stage-3 is filtered out by condition resolver.
> INFO : Stage-5 is filtered out by condition resolver.
> INFO : Moving data to: hdfs://localhost:9000/user/hive/warehouse/.hive-staging_hive_2016-04-06_18-14-59_156_3909183228338665119-12/-ext-10001 from hdfs://localhost:9000/user/hive/warehouse/.hive-staging_hive_2016-04-06_18-14-59_156_3909183228338665119-12/-ext-10003
> INFO : Moving data to: hdfs://localhost:9000/user/hive/warehouse/view_table from hdfs://localhost:9000/user/hive/warehouse/.hive-staging_hive_2016-04-06_18-14-59_156_3909183228338665119-12/-ext-10001
> INFO : Table default.view_table stats: [numFiles=1, numRows=0, totalSize=0, rawDataSize=0]
> No rows affected (3.8 seconds)
> 0: jdbc:hive2://localhost:10000/default> alter view view1 as select * from t2;
> No rows affected (0.602 seconds)
> 0: jdbc:hive2://localhost:10000/default>
> {noformat}
> Check the lineage of the resultant table(view_table).
> Link showing confusing lineage: https://monosnap.com/file/qaYZcJRQnNX5BsyM12hkryv70RZK1I
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