Yiqun Lin created HDFS-10594:
--------------------------------
Summary: CacheReplicationMonitor should recursively rescan the
path when the inode of the path is directory
Key: HDFS-10594
URL: https://issues.apache.org/jira/browse/HDFS-10594
Project: Hadoop HDFS
Issue Type: Bug
Components: caching
Affects Versions: 2.7.1
Reporter: Yiqun Lin
Assignee: Yiqun Lin
In {{CacheReplicationMonitor#rescanCacheDirectives}}, it should recursively
rescan the path when the inode of the path is a directory. In these code:
{code}
} else if (node.isDirectory()) {
INodeDirectory dir = node.asDirectory();
ReadOnlyList<INode> children = dir
.getChildrenList(Snapshot.CURRENT_STATE_ID);
for (INode child : children) {
if (child.isFile()) {
rescanFile(directive, child.asFile());
}
}
}
{code}
If we did the this logic, it means that some inode files will be ignored when
the child inode is also a directory and there are some other child inode file
in it. Finally the child's child file which belong to this path will not be
cached.
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