Shen, Neal created HDFS-13412:
---------------------------------
Summary: filesystem will throw out-of-bounds access for webhdfs
using DirectoryListing
Key: HDFS-13412
URL: https://issues.apache.org/jira/browse/HDFS-13412
Project: Hadoop HDFS
Issue Type: Bug
Components: webhdfs
Affects Versions: 3.0.0
Reporter: Shen, Neal
Fix For: 3.0.0
In a big directory, there are a lot of entries; so we use LISTSTATUS_BATCH over
webhdfs;
and if the first batch is returned and preparing to query with startAfter but
the left entries are deleted from the directory.
for this scenario,the hadoop client will throw out-of-bounds access at line
'return (T)entries.getEntries()[i++];'
@Override
@SuppressWarnings("unchecked")
public T next() throws IOException {
Preconditions.checkState(hasNext(), "No more items in iterator");
if (i == entries.getEntries().length) {
fetchMore();
}
return (T)entries.getEntries()[i++];
}
here is the exception stack:
java.lang.ArrayIndexOutOfBoundsException: 0
at
org.apache.hadoop.fs.FileSystem$DirListingIterator.next(FileSystem.java:2120)
at
org.apache.hadoop.fs.FileSystem$DirListingIterator.next(FileSystem.java:2084)
at
org.apache.hadoop.hdfs.web.TestWebHdfsListBatch$1.run(TestWebHdfsListBatch.java:149)
at
org.apache.hadoop.hdfs.web.TestWebHdfsListBatch$1.run(TestWebHdfsListBatch.java:135)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1962)
at
org.apache.hadoop.hdfs.web.TestWebHdfsListBatch.testLargeDirectory(TestWebHdfsListBatch.java:135)
at
org.apache.hadoop.hdfs.web.TestWebHdfsListBatch.main(TestWebHdfsListBatch.java:102)
2018-03-30 22:53:00,731 DEBUG util.ShutdownHookManager: ShutdownHookManger
complete shutdown.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org
