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https://issues.apache.org/jira/browse/YARN-7705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16321317#comment-16321317
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Miklos Szegedi commented on YARN-7705:
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Thank you for the patch [~yufeigu]!
{code}
1068 if (container_log_dir == NULL) {
{code}
I would log here that concatenation failed and what were the parameters. It
helps with supporting the feature.
{code}
1064 char *any_one_container_log_dir = NULL;
{code}
Just the fact that a log dir was would is represented by this variable. I would
replace it with a boolean (int). This will help to eliminate the extra logic on
free().
{code}
1072 if (create_directory_for_user(container_log_dir) != 0) {
1073 free(container_log_dir);
1074 return -1;
{code}
Please add some extra logging here as well.
{code}
370 cmd_input.container_id = argv[optind++];
{code}
This requires a bump in the argument number check above to avoid buffer
overflows.
{code}
822 if (access(container_dir, R_OK) != 0) {
{code}
I would add a check that it is non NULL.
> Create the container log directory with correct sticky bit in C code
> --------------------------------------------------------------------
>
> Key: YARN-7705
> URL: https://issues.apache.org/jira/browse/YARN-7705
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Affects Versions: 3.0.0, 3.1.0
> Reporter: Yufei Gu
> Assignee: Yufei Gu
> Attachments: YARN-7705.001.patch, YARN-7705.002.patch
>
>
> YARN-7363 created the container log directory in Java, which isn't able to
> set the correct sticky bit because of Java language limitation. Wrong sticky
> bit of log directory causes failure of reading log files inside the
> directory. To solve that, we need to do it in C code.
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