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https://issues.apache.org/jira/browse/HADOOP-11764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14495192#comment-14495192
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Zhijie Shen commented on HADOOP-11764:
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[~adhoot], thanks for sharing the example. Does it mean if
"library.leveldbjni.path" is defined, leveldb will programatically not only
replace "java.io.tmpdir" with it, but also add it to "java.class.path"? I used
to have some experiment: if I change "java.io.tmpdir" only to dir_abc, but not
add it to "java.class.path" manually, JNI lib loading is still wrong.
> Hadoop should have the option to use directory other than tmp for extracting
> and loading leveldbjni
> ---------------------------------------------------------------------------------------------------
>
> Key: HADOOP-11764
> URL: https://issues.apache.org/jira/browse/HADOOP-11764
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Anubhav Dhoot
> Assignee: Anubhav Dhoot
> Attachments: YARN-3331.001.patch, YARN-3331.002.patch
>
>
> /tmp can be required to be noexec in many environments. This causes a
> problem when nodemanager tries to load the leveldbjni library which can get
> unpacked and executed from /tmp.
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