git.net

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[jira] [Created] (ARROW-3139) ArrowIOError: Arrow error: Capacity error during read


Frédérique Vanneste created ARROW-3139:
------------------------------------------

             Summary: ArrowIOError: Arrow error: Capacity error during read
                 Key: ARROW-3139
                 URL: https://issues.apache.org/jira/browse/ARROW-3139
             Project: Apache Arrow
          Issue Type: Bug
          Components: Python
    Affects Versions: 0.10.0
         Environment: pandas=0.23.1=py36h637b7d7_0
pyarrow==0.10.0
            Reporter: Frédérique Vanneste


My assumption: the problem is caused by a large object column containing strings up to 27 characters long. (so that column is much larger than 2GB of strings, chunking issue)

looks similar as  https://issues.apache.org/jira/browse/ARROW-2227?focusedCommentId=16379574&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16379574 ;

Code
 * basket_plateau= pq.read_table("basket_plateau.parquet")
 * basket_plateau = pd.read_parquet("basket_plateau.parquet")

Error produced
 * ArrowIOError: Arrow error: Capacity error: BinaryArray cannot contain more than 2147483646 bytes, have 2147483655

Dataset
 * Pandas dataframe (pandas=0.23.1=py36h637b7d7_0)
 * 2.7 billion record, 4 columns ( int64/object/datetime64/float64)
 * aprox 90GB in memory
 * example of object col: "Fresh Vegetables", "Alcohol Beers", ... (thing food retail categories)

History to bug:
 * was using older version of pyarrow
 * tried writing dataset to disk (parquet) and failed
 * stumbled on https://issues.apache.org/jira/browse/ARROW-2227
 * upgraded to 0.10
 * tried writing dataset to disk (parquet) and succeeded
 * tried reading dataset and failed
 * looks like a similar case as: https://issues.apache.org/jira/browse/ARROW-2227?focusedCommentId=16379574&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16379574 ;

Code outputs



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)