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https://issues.apache.org/jira/browse/STORM-1368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15145186#comment-15145186
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ASF GitHub Bot commented on STORM-1368:
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Github user revans2 commented on the pull request:
https://github.com/apache/storm/pull/1078#issuecomment-183466471
This breaks windows by default, and is only needed when security is turned
on. Why don't we have the logviewer + worker_launcher change the permissions
instead of using the odd, and I would say scary, feature to change the
permissions.
> For secure cluster, heapdump file lacks of group read permissions for UI
> download
> ---------------------------------------------------------------------------------
>
> Key: STORM-1368
> URL: https://issues.apache.org/jira/browse/STORM-1368
> Project: Apache Storm
> Issue Type: Bug
> Components: storm-core
> Environment: Secure Storm (runAsUser)
> Reporter: Zhuo Liu
> Assignee: Zhuo Liu
> Priority: Minor
>
> In Secure storm, Jstack, gc and other log files have read permission for
> group. However, heapdump generated from OOM or User Dynamic Profiling has no
> read permissions for group user because JVM hard-coded it in this way.
> HTTP ERROR: 500
> Problem accessing
> /download/Penguin-151202-234121-19-1449099695%2F6701%2Frecording-28103-20151203-184734.bin.
> Reason:
> Server Error
> We need to fix it to enable user to download heapdump from UI.
> -rw------- 1 zhuol gstorm 3664982 Dec 3 19:37
> /home/y/var/storm/workers-artifacts/wc2-38-1449171210/6702/java_pid24691.hprof
> -rw-r----- 1 zhuol gstorm 7597 Dec 3 19:37
> /home/y/var/storm/workers-artifacts/wc2-38-14491712
> {code}
> 4373 // create binary file, rewriting existing file if required
> 4374 int os::create_binary_file(const char* path, bool rewrite_existing) {
> 4375 int oflags = O_WRONLY | O_CREAT;
> 4376 if (!rewrite_existing) {
> 4377 oflags |= O_EXCL;
> 4378 }
> 4379 return ::open64(path, oflags, S_IREAD | S_IWRITE);
> 4380 }
> {code}
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