Manoj Govindassamy created HDFS-12614:
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Summary: 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
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.
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