Deadlock in Configuration.writeXml when serialized form is larger than one DFS block ------------------------------------------------------------------------------------
Key: HDFS-1542 URL: https://issues.apache.org/jira/browse/HDFS-1542 Project: Hadoop HDFS Issue Type: Bug Components: hdfs client Affects Versions: 0.20.2, 0.22.0, 0.23.0 Reporter: Todd Lipcon Priority: Critical Attachments: Test.java Configuration.writeXml holds a lock on itself and then writes the XML to an output stream, during which DFSOutputStream will try to get a lock on ackQueue/dataQueue. Meanwihle the DataStreamer thread will call functions like conf.getInt() and deadlock against the other thread, since it could be the same conf object. This causes a deterministic deadlock whenever the serialized form is larger than block size. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.