hadoop fs -mkdir /accumulo
hadoop fs -chown accumulo:supergroup /accumulo


<div>-------- Original message --------</div><div>From: David Patterson 
<[email protected]> </div><div>Date:03/01/2015  7:04 PM  (GMT-05:00) 
</div><div>To: [email protected] </div><div>Cc:  </div><div>Subject: Re: 
Permission Denied </div><div>
</div>David,

Thanks for the reply. 

Taking the questions in the opposite order, my accumulo-site.xml does not have 
volumes specified. 

I edited the accumulo-site.xml so it now has
  <property>
    <name>instance.volumes</name>
    <value>hdfs://localhost:9000/accumulo</value>
    <description>comma separated list of URIs for volumes. example: 
hdfs://localhost:9000/accumulo</description>
  </property>

and got the same error.

How can I precreate /accumulo ?

Dave Patterson

On Sun, Mar 1, 2015 at 3:50 PM, david marion <[email protected]> wrote:
It looks like / is owned by hadoop.supergroup and the perms are 755. You could 
precreate /accumulo and chown it appropriately, or set the perms for / to 775. 
Init is trying to create /accumulo in hdfs as the accumulo user and your perms 
dont allow it.

Do you have instance.volumes set in accumulo-site.xml?


-------- Original message --------
From: David Patterson <[email protected]>
Date:03/01/2015 3:36 PM (GMT-05:00)
To: [email protected]
Cc:
Subject: Permission Denied

I'm trying to create an Accumulo/Hadoop/Zookeeper configuration on a single 
(Ubuntu) machine, with Hadoop 2.6.0, Zookeeper 3.4.6 and Accumulo 1.6.1. 

I've got 3 userids for these components that are in the same group and no other 
users are in that group.

I have zookeeper running, and hadoop as well.

Hadoop's core-site.xml file has the hadoop.tmp.dir set to /app/hadoop/tmp.The 
/app/hadoop/tmp directory is owned by the hadoop user and has permissions that 
allow other members of the group to write (drwxrwxr-x).

When I try to initialize Accumulo, with bin/accumulo init, I get FATAL: Failed 
to initialize filesystem.
org.apache.hadoop.security.AccessControlException: Permission denied: 
user=accumulo, access=WRITE, inode="/":hadoop:supergroup:drwxr-xr-x

So, my main question is which directory do I need to give group-write 
permission so the accumulo user can write as needed so it can initialize?

The second problem is that the Accumulo init reports 
[Configuration.deprecation] INFO : fs.default.name is deprecated. Instead use 
fs.defaultFS. However, the hadoop core-site.xml file contains:
    <name>fs.defaultFS</name>
    <value>hdfs://localhost:9000</value>

Is there somewhere else that this value (fs.default.name) is specified? Could 
it be due to Accumulo having a default value and not getting the override from 
hadoop because of the problem listed above?

Thanks

Dave Patterson
[email protected]

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