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https://issues.apache.org/jira/browse/SQOOP-3042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16746202#comment-16746202
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Vani commented on SQOOP-3042:
-----------------------------
[~vasas] [~dionusos]
"The error means that the generated source file cannot be moved to the code
output directory, which is the current directory by default but can be
overridden with the - outdir option". But this doesn't take care of the below
scenarios:-
1) Technically if the "--outdir" is not specified in the sqoop command, this
would always result in error message logged in sqoop log if the current
directory has already a file with the same name.
2) Since this is not really an error, rather a product behavior shouldn’t it be
logged as Info message?
3) As better product design, new behavior should not change user experience.
Following impacts are observed:
A) Error message log which is a product design.
B) To mitigate the error message or having this actually worked, now user has
to modify all the commands manually.
Severity levels are used by many user in their monitoring system and such
changes should be thoroughly rationalized.
Please let me know your thoughts
> Sqoop does not clear compile directory under /tmp/sqoop-<username>/compile
> automatically
> ----------------------------------------------------------------------------------------
>
> Key: SQOOP-3042
> URL: https://issues.apache.org/jira/browse/SQOOP-3042
> Project: Sqoop
> Issue Type: Bug
> Affects Versions: 1.4.6
> Reporter: Eric Lin
> Assignee: Eric Lin
> Priority: Critical
> Labels: patch
> Fix For: 3.0.0
>
> Attachments: SQOOP-3042.1.patch, SQOOP-3042.2.patch,
> SQOOP-3042.4.patch, SQOOP-3042.5.patch, SQOOP-3042.6.patch,
> SQOOP-3042.7.patch, SQOOP-3042.9.patch
>
>
> 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:
> {code}
> 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;
> }
> }
> {code}
> However, I believe it failed to delete due to directory is not empty.
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