Increase the Swap Size while installing the Oracle DB

While installing the DB, the Prerequisite check may fail saying Swap Space expected value is XXXX where as the actual value would be XXXX.

To over come this increase the swap size. Here are the steps to increase the swap size.

# How to create a swap partition of 15GB
# possible alternate approach

Logon  as a root user.

       $ dd if=/dev/zero of=/u01/swapfile bs=1024 count=15242880
       $ chmod 600 /u01/swapfile
       $ mkswap /u01/swapfile
       $ swapon /u01/swapfile
       $ echo '/u01/swapfile none swap sw 0 0' >> /etc/fstab

Existing lock /var/run/yum.pid: another copy is running as pid XXXX. Another app is currently holding the yum lock; waiting for it to exit..

When you are searching / installing the RPM and if you ever come across the below exception, 

[root@dhcp-ptp2-10-177-154-84 yum.repos.d]# yum search libaio
Loaded plugins: langpacks
Existing lock /var/run/yum.pid: another copy is running as pid 3339.
Another app is currently holding the yum lock; waiting for it to exit...
  The other application is: PackageKit
    Memory :  25 M RSS (429 MB VSZ)
    Started: Wed Jul  6 14:52:53 2016 - 02:30 ago
    State  : Sleeping, pid: 3339
Another app is currently holding the yum lock; waiting for it to 

Follow the below steps.

cd /var/run/ and you could see a file "yum.pid". Just delete it and try again. Now you can seach / install the RPM.

Not able to install RPM through "yum" utility?

I am trying to search / install rpm through yum utility, when I am searching for it am getting the below exception.

[root@dhcp-blr-kkm-itpark-10fl-10-184-29-195 /]# yum search libaio-devel-0.3.109-12.el7-i686

Loaded plugins: langpacks

http://public-yum.oracle.com/repo/OracleLinux/OL7/UEKR3/x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to public-yum.oracle.com:80; No route to host"

Trying other mirror.

To over come this situation, follow the below steps.

1. Export your Proxy as follows.

[root@dhcp-blr-kkm-itpark-10fl-10-184-29-195 /]# export http_proxy="http://www-XXXXXXXXXX.com:80"

[root@dhcp-blr-kkm-itpark-10fl-10-184-29-195 /]# yum search libaio-devel-0.3.109-12.el7-i686

Loaded plugins: langpacks

ol7_UEKR3                                                                                                                                                                     | 1.2 kB  00:00:00

  2. go to /etc/yum.repos.d/ -> vi public-yum-ol7.repo and edit the below two entries from 0 to 1.

Now try the same.

How to bring your VM in network?

Open your Oracle VM Virtualbox, Select the respective VM -> Right Click, Settings -> Network and enable as follows.

Then logon to your VM, open your browser and give your proxy details.

Now I could connect to the internet. 

Configure Networking in Oracle Linux 7.1

Usually, when I would be creating a new VM (eg. Oracle Linux 5.x, 6.x) I used to get an IP address by default.
Today, I configured Oracle Linux 7.1 in my Oracle VM where as I didn't get the IP address. It stops me to proceed further.

If I do "ifconfig" in my terminal, I will be getting as shown below.

To configure the same, follow the steps given in the below link.
https://blogs.oracle.com/devops/entry/test

No objects displayed when importing metadata in OBIEE 11g Client.

No objects displayed when importing metadata in OBIEE 11g Client.

Not able to import metadata while creating rpd, using Oracle DB with the connection type as "OCI10/11g", with the proper connection details?

Follow the steps provided in the below link.

http://vinothkumars.blogspot.in/p/installation-and-configuration-of-obiee_1.html