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From jean-louis.quegui...@corp.ovh.com
Subject Re: Review Request 54528: SQOOP-3042 - Sqoop does not clear compile directory under /tmp/sqoop-<username>/compile automatically
Date Fri, 13 Jul 2018 07:27:26 GMT


> On juil. 12, 2018, 9:47 matin, Boglarka Egyed wrote:
> > Ship It!

can't wait !! finally releiving the Drive ;-)


- jqueguiner-ovh


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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/54528/#review206006
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On juil. 12, 2018, 8:04 matin, Eric Lin wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/54528/
> -----------------------------------------------------------
> 
> (Updated juil. 12, 2018, 8:04 matin)
> 
> 
> Review request for Sqoop, Boglarka Egyed and Szabolcs Vasas.
> 
> 
> Bugs: SQOOP-3042
>     https://issues.apache.org/jira/browse/SQOOP-3042
> 
> 
> Repository: sqoop-trunk
> 
> 
> Description
> -------
> 
> After running sqoop, all the temp files generated by ClassWriter are left behind on disk,
so anyone can check those JAVA files to see the schema of those tables that Sqoop has been
interacting with. By default, the directory is under /tmp/sqoop-<username>/compile.
> 
> In class org.apache.sqoop.SqoopOptions, function getNonceJarDir(), I can see that we
did add "deleteOnExit" on the temp dir:
>     for (int attempts = 0; attempts < MAX_DIR_CREATE_ATTEMPTS; attempts++) {
>       hashDir = new File(baseDir, RandomHash.generateMD5String());
>       while (hashDir.exists()) {
>         hashDir = new File(baseDir, RandomHash.generateMD5String());
>       }
> 
>       if (hashDir.mkdirs()) {
>         // We created the directory. Use it.
>         // If this directory is not actually filled with files, delete it
>         // when the JVM quits.
>         hashDir.deleteOnExit();
>         break;
>       }
>     }
> However, I believe it failed to delete due to directory is not empty.
> 
> 
> Diffs
> -----
> 
>   src/docs/man/codegen-args.txt c1afaef9 
>   src/docs/user/common-args.txt 98f19be0 
>   src/java/org/apache/sqoop/SqoopOptions.java 3a19aeac 
>   src/java/org/apache/sqoop/orm/ClassWriter.java a4a768af 
>   src/java/org/apache/sqoop/orm/CompilationManager.java 6590cacc 
>   src/java/org/apache/sqoop/tool/BaseSqoopTool.java 8d318327 
>   src/java/org/apache/sqoop/util/DirCleanupHook.java PRE-CREATION 
>   src/test/org/apache/sqoop/util/TestDirCleanupHook.java PRE-CREATION 
> 
> 
> Diff: https://reviews.apache.org/r/54528/diff/6/
> 
> 
> Testing
> -------
> 
> I have tested manually. I have checked with a couple of other Java developers and it
turned out that it is not easy to add test for deleteOnExit, so I did not add any test cases.
The code path I changed does not seem to have test coverage either. Let me know if I am wrong.
> 
> Thanks
> 
> 
> Thanks,
> 
> Eric Lin
> 
>


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