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From "Walter Su (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-8364) Erasure coding: fix some minor bugs in EC CLI
Date Mon, 11 May 2015 04:41:59 GMT
Walter Su created HDFS-8364:

             Summary: Erasure coding: fix some minor bugs in EC CLI
                 Key: HDFS-8364
                 URL: https://issues.apache.org/jira/browse/HDFS-8364
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Walter Su
            Assignee: Walter Su
            Priority: Minor

issue 1:  it's  not user-friendly. We should tell user that `hdfs erasurecode`  is the entrance
to EC commands(HDFS-7349)
 # bin/hdfs
Usage: hdfs [--config confdir] [--daemon (start|stop|status)]
           [--loglevel loglevel] COMMAND
       where COMMAND is one of:
  balancer             run a cluster balancing utility
  cacheadmin           configure the HDFS cache
  crypto               configure HDFS encryption zones
  zkfc                 run the ZK Failover Controller daemon

issue 2: it's not user-friendly
 # bin/hdfs erasurecode -getZoneInfo /
-getZoneInfo: Fatal internal error
        at org.apache.hadoop.hdfs.tools.erasurecode.ECCommand$GetECZoneInfoCommand.processPath(ECCommand.java:168)
        at org.apache.hadoop.fs.shell.Command.processPaths(Command.java:321)
        at org.apache.hadoop.fs.shell.Command.processPathArgument(Command.java:293)
        at org.apache.hadoop.fs.shell.Command.processArgument(Command.java:275)
        at org.apache.hadoop.fs.shell.Command.processArguments(Command.java:259)
        at org.apache.hadoop.fs.shell.Command.processRawArguments(Command.java:205)
        at org.apache.hadoop.fs.shell.Command.run(Command.java:166)
        at org.apache.hadoop.fs.FsShell.run(FsShell.java:291)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
        at org.apache.hadoop.hdfs.tools.erasurecode.ECCli.main(ECCli.java:45)

possible issue 3:
 # bin/hdfs erasurecode -createZone /
createZone: Unable to create EC zone for the path hdfs://datasight-187:9000/
But we can create / zone by API.

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