When you configure an MPP system, you must make the parallel
engine components available to all computers in your MPP system.
About this task
Use one of the following methods to make the parallel
engine available to all the compute nodes in the MPP system:
- You can globally cross-mount, typically by using network file
system (NFS), a single directory on a single system containing the
parallel engine software. This configuration makes software upgrades
more convenient than if the parallel engine components are installed
on all processing systems. If you are using NFS to globally mount
the directory, mount it using the soft link option.
- You can use a script to copy the parallel engine components to
a directory with the same path name on all processing systems that
you designate for processing parallel jobs.
Procedure
- Cross mount your directories. Ensure that all mounted directories
are exactly the same path from the root directory on all nodes.
Option |
Description |
For non-NFS disks |
On the computer where you installed the IBM®
InfoSphere® Information Server engine,
change the directory to the parallel engine directory (by default /opt/IBM/InformationServer/Server/PXEngine). |
For NFS disks |
- On the computer where you installed the IBM
InfoSphere Information Server engine,
change the directory to the directory where you installed InfoSphere Information Server (by
default /opt/IBM/InformationServer/Server).
- Change the directory to your InfoSphere Information Server projects
directory (by default /opt/IBM/InformatonServer/Server/Projects).
|
- For non-NFS disks, enter the following command to copy
install_dir/install/copy-orchdist node1 node2 ... nodeN
For
node1 to
nodeN specify
the new node names, separated by spaces.
- Add the nodes to the configuration files for jobs that
will use the nodes.