Aaron T. Myers created HDFS-5517: ------------------------------------ Summary: Lower the default maximum number of blocks per file Key: HDFS-5517 URL: https://issues.apache.org/jira/browse/HDFS-5517 Project: Hadoop HDFS Issue Type: Bug Components: namenode Affects Versions: 2.2.0 Reporter: Aaron T. Myers Assignee: Aaron T. Myers
We introduced the maximum number of blocks per file in HDFS-4305, but we set the default to 1MM. In practice this limit is so high as to never be hit, whereas we know that an individual file with 10s of thousands of blocks can cause problems. We should lower the default value, in my opinion to 10k. -- This message was sent by Atlassian JIRA (v6.1#6144)