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Walter Su commented on HDFS-8699: --------------------------------- Thanks [~kaisasak] for reporting. Actually this is duplicated with HDFS-8220. > DFSClient hang up when there are not sufficient DataNodes in EC cluster. > ------------------------------------------------------------------------ > > Key: HDFS-8699 > URL: https://issues.apache.org/jira/browse/HDFS-8699 > Project: Hadoop HDFS > Issue Type: Sub-task > Affects Versions: HDFS-7285 > Reporter: Kai Sasaki > Assignee: Kai Sasaki > > 6-3 RS schema requires 9 data nodes at least to work properly. However when > there are not sufficient DataNodes in EC cluster, writing file fails because > of NullPointerException. And also client is hang up. > {code} > java.lang.NullPointerException > at > org.apache.hadoop.hdfs.DataStreamer.nextBlockOutputStream(DataStreamer.java:1463) > at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:591) > at > org.apache.hadoop.hdfs.StripedDataStreamer.run(StripedDataStreamer.java:49) > {code} > > DFSClient should handle insufficient DN error properly just like replication > blocks. -- This message was sent by Atlassian JIRA (v6.3.4#6332)