GitHub user gatorsmile opened a pull request:
https://github.com/apache/spark/pull/19440
[SPARK-21871][SQL] Fix infinite loop when bytecode size is larger than
spark.sql.codegen.hugeMethodLimit
## What changes were proposed in this pull request?
When exceeding `spark.sql.codegen.hugeMethodLimit`, the runtime fallbacks
to the Volcano iterator solution. This could cause an infinite loop when
`FileSourceScanExec` can use the columnar batch to read the data. This PR is to
fix the issue.
## How was this patch tested?
Added a test
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gatorsmile/spark testt
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/19440.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #19440
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commit 6e2f53238856942e40a3301108f37a3a5cc17bca
Author: gatorsmile <[email protected]>
Date: 2017-10-05T18:20:48Z
fix.
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