[ https://issues.apache.org/jira/browse/HDFS-3482?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Arpit Agarwal updated HDFS-3482: -------------------------------- Target Version/s: 2.6.0 Fix Version/s: 2.6.0 Looks like this fix was never merged to branch-2. I just merged it. > 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 > Assignee: madhukara phatak > Priority: Minor > Labels: newbie > Fix For: 3.0.0, 2.6.0 > > Attachments: HDFS-3482-1.patch, HDFS-3482-2.patch, HDFS-3482-3.patch, > HDFS-3482-4.patch, HDFS-3482-4.patch, HDFS-3482.patch > > > 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 was sent by Atlassian JIRA (v6.2#6252)