Ted Yu created HADOOP-11494:
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Summary: Lock acquisition on WrappedInputStream#unwrappedRpcBuffer
may race with another thread
Key: HADOOP-11494
URL: https://issues.apache.org/jira/browse/HADOOP-11494
Project: Hadoop Common
Issue Type: Bug
Reporter: Ted Yu
Priority: Minor
In SaslRpcClient, starting at line 576:
{code}
public int read(byte[] buf, int off, int len) throws IOException {
synchronized(unwrappedRpcBuffer) {
// fill the buffer with the next RPC message
if (unwrappedRpcBuffer.remaining() == 0) {
readNextRpcPacket();
}
{code}
readNextRpcPacket() may assign another ByteBuffer to unwrappedRpcBuffer, making
the lock on previous ByteBuffer not useful.
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