GitHub user kiszk opened a pull request:
https://github.com/apache/spark/pull/15907
[SPARK-18458][CORE] core dumped running Spark SQL on large data volume
(100TB)
## What changes were proposed in this pull request?
This PR avoids that a result of an expression is negative due to signed
integer overflow (e.g. 0x10?????? * 8 < 0). This PR casts each operand to
`long` before executing a calculation. Since the result is interpreted as long,
the result of the expression is positive.
## How was this patch tested?
Manually executed query82 of TPC-DS with 100TB
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kiszk/spark SPARK-18458
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15907.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 #15907
----
commit 3821a5266d2fb1d760a1d255a19579baba2720c7
Author: Kazuaki Ishizaki <[email protected]>
Date: 2016-11-16T18:38:42Z
avoid signed integer overflow (0x10?????? * 8) by using long multiplication
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