So i Got the problem in installing the user data file directly in the ec2 instance so i solved it by -
<pre><code class="lang-basic">cd /etc/yum.repos.d/

sed -i 's/mirrorlist/#mirrolist/g' /etc/yum.repos.d/CentOS-*

sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*

ps -ef | grep memcache - this is for the memcache port check open tcp ports 
ss -tunlp - to show all the open tcp ports 
ss -tunlp | grep 11211 - (your port)
</code></pre>

So i Got the problem in installing the user data file directly in the ec2 instance so i solved it by -

```basic
cd /etc/yum.repos.d/

sed -i 's/mirrorlist/#mirrolist/g' /etc/yum.repos.d/CentOS-*

sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*

ps -ef | grep memcache   - this is for the memcache port check open tcp ports 
ss -tunlp   - to show all the open tcp ports 
ss -tunlp | grep 11211  - (your port)
```

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