[SPARK-16764][SQL] Recommend disabling vectorized parquet reader on OutOfMemoryError #14387
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LGTM pending Jenkins. |
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Test build #62955 has finished for PR 14387 at commit
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Merging in master/2.0. |
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…utOfMemoryError ## What changes were proposed in this pull request? We currently don't bound or manage the data array size used by column vectors in the vectorized reader (they're just bound by INT.MAX) which may lead to OOMs while reading data. As a short term fix, this patch intercepts the OutOfMemoryError exception and suggest the user to disable the vectorized parquet reader. ## How was this patch tested? Existing Tests Author: Sameer Agarwal <sameerag@cs.berkeley.edu> Closes #14387 from sameeragarwal/oom. (cherry picked from commit 3fd39b8) Signed-off-by: Reynold Xin <rxin@databricks.com>
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What changes were proposed in this pull request?
We currently don't bound or manage the data array size used by column vectors in the vectorized reader (they're just bound by INT.MAX) which may lead to OOMs while reading data. As a short term fix, this patch intercepts the OutOfMemoryError exception and suggest the user to disable the vectorized parquet reader.
How was this patch tested?
Existing Tests