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From "Al Hoang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-3605) Added an abort on unset AWS_ACCOUNT_ID to luanch-hadoop-master
Date Fri, 20 Jun 2008 03:11:44 GMT
Added an abort on unset AWS_ACCOUNT_ID to luanch-hadoop-master

                 Key: HADOOP-3605
                 URL: https://issues.apache.org/jira/browse/HADOOP-3605
             Project: Hadoop Core
          Issue Type: Improvement
          Components: contrib/ec2
    Affects Versions: 0.17.0
         Environment: Fedora 9 Core Linux with openjdk-1.6.0
Hadoop 0.17.0

            Reporter: Al Hoang
            Priority: Minor

I wanted to test out playing with the ec2 contributed shell scripts to kick off a Hadoop EC2
cluster however I found that without a set AWS_ACCOUNT_ID the script would still continue
to run but not properly set the authorization groups due to the lack of an AWS Account ID

I have attached a quick patch to launch-hadoop-master to double check the existence of AWS_ACCOUNT_ID
and abort the script as early as possible and present a useful error message to the user.

Below is the pach in cut and paste

--- hadoop-0.17.0/src/contrib/ec2/bin/launch-hadoop-master	2008-05-15 16:20:14.000000000 +0900
+++ hadoop-0.17.0-modified/src/contrib/ec2/bin/launch-hadoop-master	2008-06-20 11:58:59.000000000
@@ -29,6 +29,12 @@
 bin=`cd "$bin"; pwd`
 . "$bin"/hadoop-ec2-env.sh
+if [ -z $AWS_ACCOUNT_ID ]; then
+  echo "AWS_ACCOUNT_ID is not configured properly!  Please check"
+  exit -1
 echo "Testing for existing master in group: $CLUSTER"
 MASTER_EC2_HOST=`ec2-describe-instances | awk '"RESERVATION" == $1 && "'$CLUSTER_MASTER'"
== $4, "RESERVATION" == $1 && "'$CLUSTER_MASTER'" != $4'`
 MASTER_EC2_HOST=`echo "$MASTER_EC2_HOST" | awk '"INSTANCE" == $1 && "running" ==
$6 {print $4}'`
@@ -108,4 +114,4 @@
 ssh $SSH_OPTS "root@$MASTER_EC2_HOST" "chmod 600 /root/.ssh/id_rsa"
 MASTER_IP=`dig +short $MASTER_EC2_HOST`
-echo "Master is $MASTER_EC2_HOST, ip is $MASTER_IP, zone is $MASTER_EC2_ZONE."
\ No newline at end of file
+echo "Master is $MASTER_EC2_HOST, ip is $MASTER_IP, zone is $MASTER_EC2_ZONE."

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