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Posted to common-issues@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2016/12/01 17:35:58 UTC
[jira] [Comment Edited] (HADOOP-13673) Update scripts to be smarter
when running with privilege
[ https://issues.apache.org/jira/browse/HADOOP-13673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15712531#comment-15712531 ]
Allen Wittenauer edited comment on HADOOP-13673 at 12/1/16 5:35 PM:
--------------------------------------------------------------------
-01:
* some basic docs
* hdfs/yarn/hadoop now support account switching
* various bugs
Some things I've been doing for testing:
hadoop-env.sh:
{code}
HDFS_NAMENODE_USER=hdfs
HDFS_DATANODE_USER=root
HDFS_DATANODE_SECURE_USER=hdfs
YARN_RESOURCEMANAGER_USER=yarn
{code}
{code}
root# yarn --daemon start resourcemanager
yarn$ yarn --daemon start resourcemanager
root# hdfs --daemon start datanode
hdfs$ hdfs --daemon start namenode
root# sbin/start-all.sh
root# sbin/stop-all.sh
hdfs$ start-dfs.sh
root# start-dfs.sh
yarn$ start-yarn.sh
root# start-yarn.sh
{code}
was (Author: aw):
-01:
* some basic docs
* hdfs/yarn/hadoop now support accoutn switching
* various bugs
> Update scripts to be smarter when running with privilege
> --------------------------------------------------------
>
> Key: HADOOP-13673
> URL: https://issues.apache.org/jira/browse/HADOOP-13673
> Project: Hadoop Common
> Issue Type: Bug
> Components: scripts
> Affects Versions: 3.0.0-alpha1, 3.0.0-alpha2
> Reporter: Allen Wittenauer
> Assignee: Allen Wittenauer
> Attachments: HADOOP-13673.00.patch, HADOOP-13673.01.patch
>
>
> As work continues on HADOOP-13397, it's become evident that we need better hooks to start daemons as specifically configured users. Via the (command)_(subcommand)_USER environment variables in 3.x, we actually have a standardized way to do that. This in turn means we can make the sbin scripts super functional with a bit of updating:
> * Consolidate start-dfs.sh and start-secure-dns.sh into one script
> * Make start-\*.sh and stop-\*.sh know how to switch users when run as root
> * Undeprecate start/stop-all.sh so that it could be used as root for production purposes and as a single user for non-production users
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