[jira] [Created] (PHOENIX-5969) Read repair reduces the number of rows returned for LIMIT queries

2020-06-20 Thread Kadir OZDEMIR (Jira)
Kadir OZDEMIR created PHOENIX-5969:
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 Summary: Read repair reduces the number of rows returned for LIMIT 
queries
 Key: PHOENIX-5969
 URL: https://issues.apache.org/jira/browse/PHOENIX-5969
 Project: Phoenix
  Issue Type: Bug
Affects Versions: 4.14.3, 5.0.0
Reporter: Kadir OZDEMIR
Assignee: Kadir OZDEMIR


Phoenix uses HBase PageFilter to limit the number of rows returned by scans. If 
a scanned index row is unverified, GlobalIndexChecker repairs this rows. This 
repair operation leads to either skipping the unverified row or scanning its 
repaired version. Every scanned row including unverified rows are counted by 
the page filter. Since unverified rows are counted but not returned for the 
query, the actual number of rows returned for a LIMIT query becomes less than 
the set limit (i.e., page size) for the query.  



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[jira] [Updated] (PHOENIX-5793) Support parallel init and fast null return for SortMergeJoinPlan.

2020-06-20 Thread chenglei (Jira)


 [ 
https://issues.apache.org/jira/browse/PHOENIX-5793?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

chenglei updated PHOENIX-5793:
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Fix Version/s: 4.16.0

> Support parallel init and fast null return for SortMergeJoinPlan.
> -
>
> Key: PHOENIX-5793
> URL: https://issues.apache.org/jira/browse/PHOENIX-5793
> Project: Phoenix
>  Issue Type: Improvement
>Affects Versions: 5.0.0
>Reporter: Chen Feng
>Assignee: Chen Feng
>Priority: Minor
> Fix For: 5.1.0, 4.16.0
>
> Attachments: PHOENIX-5793-v2.patch, PHOENIX-5793-v3.patch, 
> PHOENIX-5793-v4.patch, PHOENIX-5793-v5.patch, PHOENIX-5793_v1-4.x.patch
>
>
> For a join sql like A join B. The implementation of SortMergeJoinPlan 
> currently inits the two iterators A and B one by one.
> By initializing A and B in parallel, we can improve performance in two 
> aspects.
> 1) By overlapping the time in initializing.
> 2) If one child query is null, the other child query can be canceled since 
> the final result must be null.
>  



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[jira] [Created] (PHOENIX-5968) Undeclared org.apache.commons.lang dependency

2020-06-20 Thread Istvan Toth (Jira)
Istvan Toth created PHOENIX-5968:


 Summary: Undeclared org.apache.commons.lang dependency
 Key: PHOENIX-5968
 URL: https://issues.apache.org/jira/browse/PHOENIX-5968
 Project: Phoenix
  Issue Type: Bug
  Components: core
Affects Versions: 5.1.0
Reporter: Istvan Toth
Assignee: Istvan Toth


mvn verify/install fails because of org.apache.commons.lang being used.




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