You are viewing a plain text version of this content. The canonical link for it is here.
Posted to hdfs-dev@hadoop.apache.org by "Stephen Chu (JIRA)" <ji...@apache.org> on 2012/05/31 18:49:23 UTC
[jira] [Created] (HDFS-3482) hdfs balancer throws
ArrayIndexOutOfBoundsException if option is specified without arguments
Stephen Chu created HDFS-3482:
---------------------------------
Summary: hdfs balancer throws ArrayIndexOutOfBoundsException if option is specified without arguments
Key: HDFS-3482
URL: https://issues.apache.org/jira/browse/HDFS-3482
Project: Hadoop HDFS
Issue Type: Bug
Components: balancer
Affects Versions: 2.0.0-alpha
Reporter: Stephen Chu
Priority: Minor
When running the hdfs balancer with an option but no argument, we run into an ArrayIndexOutOfBoundsException. It's preferable to print the usage.
{noformat}
bash-3.2$ hdfs balancer -threshold
Usage: java Balancer
[-policy <policy>] the balancing policy: datanode or blockpool
[-threshold <threshold>] Percentage of disk capacity
Balancing took 261.0 milliseconds
12/05/31 09:38:46 ERROR balancer.Balancer: Exiting balancer due an exception
java.lang.ArrayIndexOutOfBoundsException: 1
at org.apache.hadoop.hdfs.server.balancer.Balancer$Cli.parse(Balancer.java:1505)
at org.apache.hadoop.hdfs.server.balancer.Balancer$Cli.run(Balancer.java:1482)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
at org.apache.hadoop.hdfs.server.balancer.Balancer.main(Balancer.java:1555)
bash-3.2$ hdfs balancer -policy
Usage: java Balancer
[-policy <policy>] the balancing policy: datanode or blockpool
[-threshold <threshold>] Percentage of disk capacity
Balancing took 261.0 milliseconds
12/05/31 09:39:03 ERROR balancer.Balancer: Exiting balancer due an exception
java.lang.ArrayIndexOutOfBoundsException: 1
at org.apache.hadoop.hdfs.server.balancer.Balancer$Cli.parse(Balancer.java:1520)
at org.apache.hadoop.hdfs.server.balancer.Balancer$Cli.run(Balancer.java:1482)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
at org.apache.hadoop.hdfs.server.balancer.Balancer.main(Balancer.java:1555)
{noformat}
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira