[jira] [Created] (HDFS-16243) The available disk space is less than the reserved space, and no log message is displayed

["Hualong Zhang (Jira)" <ji...@apache.org>]

Hualong Zhang created HDFS-16243:
------------------------------------

             Summary: The available disk space is less than the reserved space, and no log message is displayed
                 Key: HDFS-16243
                 URL: https://issues.apache.org/jira/browse/HDFS-16243
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: datanode
    Affects Versions: 2.7.2
            Reporter: Hualong Zhang


When I submitted a task to the hadoop test cluster, it appeared "could only be replicated to 0 nodes instead of minReplication (=1)"
I checked the namenode and datanode logs and did not find any error logs. It was not until the use of dfsadmin -report that the available capacity was 0 and I realized that it may be a configuration problem.
Checking the configuration found that the value of the "dfs.datanode.du.reserved" configuration is greater than the available disk space of HDFS, which caused this problem
It seems that there should be some warnings or errors in the log.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-dev-unsubscribe@hadoop.apache.org
For additional commands, e-mail: hdfs-dev-help@hadoop.apache.org