Andrew Wang created HDFS-6151: --------------------------------- Summary: HDFS should refuse to cache blocks >=2GB Key: HDFS-6151 URL: https://issues.apache.org/jira/browse/HDFS-6151 Project: Hadoop HDFS Issue Type: Bug Components: caching, datanode Affects Versions: 2.4.0 Reporter: Andrew Wang Assignee: Andrew Wang
If you try to cache a block that's >=2GB, the DN will silently fail to cache it since {{MappedByteBuffer}} uses a signed int to represent size. Blocks this large are rare, but we should log or alert the user somehow. -- This message was sent by Atlassian JIRA (v6.2#6252)