[jira] [Updated] (ARROW-6876) [Python] Reading parquet file becomes really slow for 0.15.0

2019-10-17 Thread Antoine Pitrou (Jira)


 [ 
https://issues.apache.org/jira/browse/ARROW-6876?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Antoine Pitrou updated ARROW-6876:
--
Fix Version/s: 0.15.1

> [Python] Reading parquet file becomes really slow for 0.15.0
> 
>
> Key: ARROW-6876
> URL: https://issues.apache.org/jira/browse/ARROW-6876
> Project: Apache Arrow
>  Issue Type: Bug
>  Components: Python
>Affects Versions: 0.15.0
> Environment: python3.7
>Reporter: Bob
>Assignee: Wes McKinney
>Priority: Major
>  Labels: pull-request-available
> Fix For: 1.0.0, 0.15.1
>
> Attachments: image-2019-10-14-18-10-42-850.png, 
> image-2019-10-14-18-12-07-652.png
>
>  Time Spent: 2h 40m
>  Remaining Estimate: 0h
>
> Hi,
>  
> I just noticed that reading a parquet file becomes really slow after I 
> upgraded to 0.15.0 when using pandas.
>  
> Example:
> *With 0.14.1*
>  In [4]: %timeit df = pd.read_parquet(path)
>  2.02 s ± 47.5 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
> *With 0.15.0*
>  In [5]: %timeit df = pd.read_parquet(path)
>  22.9 s ± 478 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
>  
> The file is about 15MB in size. I am testing on the same machine using the 
> same version of python and pandas.
>  
> Have you received similar complain? What could be the issue here?
>  
> Thanks a lot.
>  
>  
> Edit1:
> Some profiling I did:
> 0.14.1:
> !image-2019-10-14-18-12-07-652.png!
>  
> 0.15.0:
> !image-2019-10-14-18-10-42-850.png!
>  



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[jira] [Updated] (ARROW-6876) [Python] Reading parquet file becomes really slow for 0.15.0

2019-10-14 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/ARROW-6876?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

ASF GitHub Bot updated ARROW-6876:
--
Labels: pull-request-available  (was: )

> [Python] Reading parquet file becomes really slow for 0.15.0
> 
>
> Key: ARROW-6876
> URL: https://issues.apache.org/jira/browse/ARROW-6876
> Project: Apache Arrow
>  Issue Type: Bug
>  Components: Python
>Affects Versions: 0.15.0
> Environment: python3.7
>Reporter: Bob
>Priority: Major
>  Labels: pull-request-available
> Attachments: image-2019-10-14-18-10-42-850.png, 
> image-2019-10-14-18-12-07-652.png
>
>
> Hi,
>  
> I just noticed that reading a parquet file becomes really slow after I 
> upgraded to 0.15.0 when using pandas.
>  
> Example:
> *With 0.14.1*
>  In [4]: %timeit df = pd.read_parquet(path)
>  2.02 s ± 47.5 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
> *With 0.15.0*
>  In [5]: %timeit df = pd.read_parquet(path)
>  22.9 s ± 478 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
>  
> The file is about 15MB in size. I am testing on the same machine using the 
> same version of python and pandas.
>  
> Have you received similar complain? What could be the issue here?
>  
> Thanks a lot.
>  
>  
> Edit1:
> Some profiling I did:
> 0.14.1:
> !image-2019-10-14-18-12-07-652.png!
>  
> 0.15.0:
> !image-2019-10-14-18-10-42-850.png!
>  



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[jira] [Updated] (ARROW-6876) [Python] Reading parquet file becomes really slow for 0.15.0

2019-10-14 Thread Wes McKinney (Jira)


 [ 
https://issues.apache.org/jira/browse/ARROW-6876?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Wes McKinney updated ARROW-6876:

Fix Version/s: 0.15.1
   1.0.0

> [Python] Reading parquet file becomes really slow for 0.15.0
> 
>
> Key: ARROW-6876
> URL: https://issues.apache.org/jira/browse/ARROW-6876
> Project: Apache Arrow
>  Issue Type: Bug
>  Components: Python
>Affects Versions: 0.15.0
> Environment: python3.7
>Reporter: Bob
>Priority: Major
>  Labels: pull-request-available
> Fix For: 1.0.0, 0.15.1
>
> Attachments: image-2019-10-14-18-10-42-850.png, 
> image-2019-10-14-18-12-07-652.png
>
>  Time Spent: 10m
>  Remaining Estimate: 0h
>
> Hi,
>  
> I just noticed that reading a parquet file becomes really slow after I 
> upgraded to 0.15.0 when using pandas.
>  
> Example:
> *With 0.14.1*
>  In [4]: %timeit df = pd.read_parquet(path)
>  2.02 s ± 47.5 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
> *With 0.15.0*
>  In [5]: %timeit df = pd.read_parquet(path)
>  22.9 s ± 478 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
>  
> The file is about 15MB in size. I am testing on the same machine using the 
> same version of python and pandas.
>  
> Have you received similar complain? What could be the issue here?
>  
> Thanks a lot.
>  
>  
> Edit1:
> Some profiling I did:
> 0.14.1:
> !image-2019-10-14-18-12-07-652.png!
>  
> 0.15.0:
> !image-2019-10-14-18-10-42-850.png!
>  



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[jira] [Updated] (ARROW-6876) [Python] Reading parquet file becomes really slow for 0.15.0

2019-10-14 Thread Wes McKinney (Jira)


 [ 
https://issues.apache.org/jira/browse/ARROW-6876?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Wes McKinney updated ARROW-6876:

Summary: [Python] Reading parquet file becomes really slow for 0.15.0  
(was: Reading parquet file becomes really slow for 0.15.0)

> [Python] Reading parquet file becomes really slow for 0.15.0
> 
>
> Key: ARROW-6876
> URL: https://issues.apache.org/jira/browse/ARROW-6876
> Project: Apache Arrow
>  Issue Type: Bug
>  Components: Python
>Affects Versions: 0.15.0
> Environment: python3.7
>Reporter: Bob
>Priority: Major
> Attachments: image-2019-10-14-18-10-42-850.png, 
> image-2019-10-14-18-12-07-652.png
>
>
> Hi,
>  
> I just noticed that reading a parquet file becomes really slow after I 
> upgraded to 0.15.0 when using pandas.
>  
> Example:
> *With 0.14.1*
>  In [4]: %timeit df = pd.read_parquet(path)
>  2.02 s ± 47.5 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
> *With 0.15.0*
>  In [5]: %timeit df = pd.read_parquet(path)
>  22.9 s ± 478 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
>  
> The file is about 15MB in size. I am testing on the same machine using the 
> same version of python and pandas.
>  
> Have you received similar complain? What could be the issue here?
>  
> Thanks a lot.
>  
>  
> Edit1:
> Some profiling I did:
> 0.14.1:
> !image-2019-10-14-18-12-07-652.png!
>  
> 0.15.0:
> !image-2019-10-14-18-10-42-850.png!
>  



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