Yiqun Lin created HDFS-10549:
--------------------------------
Summary: Memory leak if exception happens when closing
DFSOutputStream or DFSStripedOutputStream
Key: HDFS-10549
URL: https://issues.apache.org/jira/browse/HDFS-10549
Project: Hadoop HDFS
Issue Type: Bug
Components: hdfs-client
Affects Versions: 2.7.1
Reporter: Yiqun Lin
Assignee: Yiqun Lin
As HADOOP-13264 memtioned, the code dfsClient.endFileLease(fileId) in {{
DFSOutputStream}} will not be executed when the IOException happened in
{{closeImpl()}}.
{code}
public void close() throws IOException {
synchronized (this) {
try (TraceScope ignored =
dfsClient.newPathTraceScope("DFSOutputStream#close", src)) {
closeImpl();
}
}
dfsClient.endFileLease(fileId);
}
}
{code}
This will cause that the files not be closed in {{DFSClient}} and finally lead
to the memory leak. In {{DFSStripedOutputStream}}, it existed the same problem.
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