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)
