You are viewing a plain text version of this content. The canonical link for it is here.
Posted to hdfs-issues@hadoop.apache.org by "Kihwal Lee (JIRA)" <ji...@apache.org> on 2017/10/09 13:47:00 UTC
[jira] [Commented] (HDFS-12614) FSPermissionChecker#getINodeAttrs()
throws NPE when INodeAttributesProvider configured
[ https://issues.apache.org/jira/browse/HDFS-12614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16196983#comment-16196983 ]
Kihwal Lee commented on HDFS-12614:
-----------------------------------
We've seen this too. [~daryn] and [~agresch] analyzed it. I hope they can provide some feedback.
> FSPermissionChecker#getINodeAttrs() throws NPE when INodeAttributesProvider configured
> --------------------------------------------------------------------------------------
>
> Key: HDFS-12614
> URL: https://issues.apache.org/jira/browse/HDFS-12614
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Manoj Govindassamy
> Assignee: Manoj Govindassamy
> Attachments: HDFS-12614.test.01.patch
>
>
> When INodeAttributesProvider is configured, and when resolving path (like "/") and checking for permission, the following code when working on {{pathByNameArr}} throws NullPointerException.
> {noformat}
> private INodeAttributes getINodeAttrs(byte[][] pathByNameArr, int pathIdx,
> INode inode, int snapshotId) {
> INodeAttributes inodeAttrs = inode.getSnapshotINode(snapshotId);
> if (getAttributesProvider() != null) {
> String[] elements = new String[pathIdx + 1];
> for (int i = 0; i < elements.length; i++) {
> elements[i] = DFSUtil.bytes2String(pathByNameArr[i]); <===
> }
> inodeAttrs = getAttributesProvider().getAttributes(elements, inodeAttrs);
> }
> return inodeAttrs;
> }
> {noformat}
> Looks like for paths like "/" where the split components based on delimiter "/" can be null, the pathByNameArr array can have null elements and can throw NPE.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-help@hadoop.apache.org