when i configure disableUploadTimeout="false" and connectionTimeout="20000" ,connectionUploadTimeout="30000" .
I found the connectionUploadTimeout doesn't work, because the code in internalNioInputBuffer.readSocket():
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
try {
                NioEndpoint.KeyAttachment att = (NioEndpoint.KeyAttachment)socket.getAttachment(false);
                if ( att == null ) throw new IOException("Key must be cancelled.");
                nRead = pool.read(socket.getBufHandler().getReadBuffer(),socket,selector,att.getTimeout());
            } catch ( EOFException eof ) {
                nRead = -1;
            } finally { 
                if ( selector != null ) pool.put(selector);
            }
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
att.getTimeout() is the connectionTimeout ,not the connectionUploadTimeout.
so , in NioBlockingSelector.read(), the readTimeout is connectionTimeout