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[SPARK-21696][SS]Fix a potential issue that may generate partial snapshot files - #18928
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zsxwing wants to merge 1 commit into
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[SPARK-21696][SS]Fix a potential issue that may generate partial snapshot files#18928zsxwing wants to merge 1 commit into
zsxwing wants to merge 1 commit into
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zsxwing
commented
Aug 11, 2017
MemberAuthor
SparkQA
commented
Aug 12, 2017
Test build #80557 has finished for PR 18928 at commit
|
tdas
commented
Aug 14, 2017
Contributor
LGTM. |
asfgit pushed a commit
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this pull request
Aug 14, 2017
…pshot files ## What changes were proposed in this pull request? Directly writing a snapshot file may generate a partial file. This PR changes it to write to a temp file then rename to the target file. ## How was this patch tested? Jenkins. Author: Shixiong Zhu <shixiong@databricks.com> Closes#18928 from zsxwing/SPARK-21696. (cherry picked from commit 282f00b) Signed-off-by: Tathagata Das <tathagata.das1565@gmail.com>
YuvalItzchakov
commented
Aug 26, 2017
@zsxwing Can you elaborate on why writing to a file directly may generate a partial file? Is this about an exception terminating the write to the underlying file system while the maintenance task is writing? |
zsxwing
commented
Aug 27, 2017
MemberAuthor
@YuvalItzchakov there are many cases: power outage, the process is killed by oom killer, or the user calls |
YuvalItzchakov
commented
Aug 27, 2017
Right. We've had some problems with reading snapshots after executors dying on OOM, I hope this does the trick :) Thanks. |
MatthewRBruce pushed a commit
to Shopify/spark
that referenced
this pull request
Jul 31, 2018
…pshot files ## What changes were proposed in this pull request? Directly writing a snapshot file may generate a partial file. This PR changes it to write to a temp file then rename to the target file. ## How was this patch tested? Jenkins. Author: Shixiong Zhu <shixiong@databricks.com> Closesapache#18928 from zsxwing/SPARK-21696. (cherry picked from commit 282f00b) Signed-off-by: Tathagata Das <tathagata.das1565@gmail.com>
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What changes were proposed in this pull request?
Directly writing a snapshot file may generate a partial file. This PR changes it to write to a temp file then rename to the target file.
How was this patch tested?
Jenkins.