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Posted to yarn-issues@hadoop.apache.org by "Bibin A Chundatt (JIRA)" <ji...@apache.org> on 2017/07/06 07:12:05 UTC
[jira] [Updated] (YARN-6708) Nodemanager container crash after ext3
folder limit
[ https://issues.apache.org/jira/browse/YARN-6708?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Bibin A Chundatt updated YARN-6708:
-----------------------------------
Attachment: YARN-6708.007.patch
Apologies for missing out comment.
Following changes are made in latest patch
# After added to test class to delete {{basedir}}
# Precreate directory and set wrong permission for {{USERCACHE}} folder
# {{USER_CACHE_FOLDER_PERMS}} renamed to {{USERCACHE_FOLDER_PERMS}}
> Nodemanager container crash after ext3 folder limit
> ---------------------------------------------------
>
> Key: YARN-6708
> URL: https://issues.apache.org/jira/browse/YARN-6708
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Bibin A Chundatt
> Assignee: Bibin A Chundatt
> Priority: Critical
> Attachments: YARN-6708.001.patch, YARN-6708.002.patch, YARN-6708.003.patch, YARN-6708.004.patch, YARN-6708.005.patch, YARN-6708.006.patch, YARN-6708.007.patch
>
>
> Configure umask as *027* for nodemanager service user
> and {{yarn.nodemanager.local-cache.max-files-per-directory}} as {{40}}. After 4 *private* dir localization next directory will be *0/14*
> Local Directory cache manager
> {code}
> vm2:/opt/hadoop/release/data/nmlocal/usercache/mapred/filecache # l
> total 28
> drwx--x--- 7 mapred hadoop 4096 Jun 10 14:35 ./
> drwxr-s--- 4 mapred hadoop 4096 Jun 10 12:07 ../
> drwxr-x--- 3 mapred users 4096 Jun 10 14:36 0/
> drwxr-xr-x 3 mapred users 4096 Jun 10 12:15 10/
> drwxr-xr-x 3 mapred users 4096 Jun 10 12:22 11/
> drwxr-xr-x 3 mapred users 4096 Jun 10 12:27 12/
> drwxr-xr-x 3 mapred users 4096 Jun 10 12:31 13/
> {code}
> *drwxr-x---* 3 mapred users 4096 Jun 10 14:36 0/ is only *750*
> Nodemanager user will not be able check for localization path exists or not.
> {{LocalResourcesTrackerImpl}}
> {code}
> case REQUEST:
> if (rsrc != null && (!isResourcePresent(rsrc))) {
> LOG.info("Resource " + rsrc.getLocalPath()
> + " is missing, localizing it again");
> removeResource(req);
> rsrc = null;
> }
> if (null == rsrc) {
> rsrc = new LocalizedResource(req, dispatcher);
> localrsrc.put(req, rsrc);
> }
> break;
> {code}
> *isResourcePresent* will always return false and same resource will be localized to {{0}} to next unique number
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