Tsz Wo Nicholas Sze created HDFS-7843: -----------------------------------------
Summary: A truncated file is corrupted after rollback from a rolling upgrade Key: HDFS-7843 URL: https://issues.apache.org/jira/browse/HDFS-7843 Project: Hadoop HDFS Issue Type: Sub-task Reporter: Tsz Wo Nicholas Sze Assignee: Tsz Wo Nicholas Sze Priority: Blocker Here is a rolling upgrade truncate test from [~brandonli]. The basic test step is: (3 nodes cluster with HA) 1. upload a file to hdfs 2. start rollingupgrade. finish rollingupgrade for namenode and one datanode. 3. truncate the file in hdfs to 1byte 4. do rollback 5. download file from hdfs, check file size to be original size I see the file size in hdfs is correct but can't read it because the block is corrupted. -- This message was sent by Atlassian JIRA (v6.3.4#6332)