[GitHub] [orc] coderex2522 commented on issue #1240: Huge memory taken for each field when exporting

[GitBox <gi...@apache.org>]

coderex2522 commented on issue #1240:
URL: https://github.com/apache/orc/issues/1240#issuecomment-1233150605

   @LouisClt  To support the zero-copy mechanism, class BufferedOutputStream will have an internal data buffer. And the default capacity of  the internal data buffer is 1MB. This default capacity size should be able to be modified, but here's a hint that if the buffer capacity is set too small, it may cause the buffer to expand and trigger memcpy function frequently.


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