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Posted to jira@arrow.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2022/07/05 22:43:00 UTC

[jira] [Updated] (ARROW-16983) Delta byte array encoder broken due to memory leak

     [ https://issues.apache.org/jira/browse/ARROW-16983?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-16983:
-----------------------------------
    Labels: pull-request-available  (was: )

> Delta byte array encoder broken due to memory leak
> --------------------------------------------------
>
>                 Key: ARROW-16983
>                 URL: https://issues.apache.org/jira/browse/ARROW-16983
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Go, Parquet
>            Reporter: Matt DePero
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> The `DeltaByteArrayEncoder` has a memory leak due to a bug in how `EstimatedDataEncodedSize` is calculated. DeltaByteArrayEncoder extends `encoder` which calculates EstimatedDataEncodedSize by calling `Len()` on its `PooledBufferWriter` sink. DeltaByteArrayEncoder however does not write data to sink, instead writing data to `prefixEncoder` and `suffixEncoder` causing EstimatedDataEncodedSize to always return zero. 



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