You are viewing a plain text version of this content. The canonical link for it is here.
Posted to yarn-issues@hadoop.apache.org by "Bibin A Chundatt (JIRA)" <ji...@apache.org> on 2017/06/10 10:33:18 UTC
[jira] [Commented] (YARN-6708) Nodemanager container crash after
ext3 folder limit
[ https://issues.apache.org/jira/browse/YARN-6708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16045484#comment-16045484 ]
Bibin A Chundatt commented on YARN-6708:
----------------------------------------
FS download takes cares for setting permission for localization directory
{code}
Callable<Path> download(Path path, LocalResource rsrc,
UserGroupInformation ugi) throws IOException {
diskValidator.checkStatus(new File(path.toUri().getRawPath()));
return new FSDownloadWrapper(lfs, ugi, conf, path, rsrc);
}
{code}
{{FSDownload#call}} *createDir(destDirPath, cachePerms);* only for {{0/14}} so for {{0}} rights are not set
{code}
@Override
public Path call() throws Exception {
final Path sCopy;
try {
sCopy = resource.getResource().toPath();
} catch (URISyntaxException e) {
throw new IOException("Invalid resource", e);
}
createDir(destDirPath, cachePerms);
{code}
Joint founder + [~varun_saxena]
> 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
> Priority: Critical
>
> 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
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
---------------------------------------------------------------------
To unsubscribe, e-mail: yarn-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: yarn-issues-help@hadoop.apache.org