cluster:Worker/1/node

From Dgiref

Please open a NGI-DE ticket if you experience any Installation or Configuration problem.

Worker/1/node

Prepare

Operating system: Scientific Linux version 4.7 64 bit

Optimizing the configuration: 

Use minimal operating system installation without firewall.
To verify installed packages use the command 
rpm -qa | grep package_name
Install the following additional packages:
yum -y install wget yum rpm make gcc gcc-c++ tar sed zlib openssl
After the installation is complete, turn off any unnecessary services (like gpm, sendmail, cups, haldaemon, messagebus, pcmcia, anacron, atd) with the following command: 
chkconfig <SERVICE> off

Configure the following settings for the server:

Firewall configuration

Allowing incoming connections directed to the WNs is optional and Resource Providers can freely decide whether to permit them on a voluntary base. However, when such inbound connections are blocked, data transfers using GridFTP will be forced to work in "single-stream" mode and their performance might be accordingly degraded (how to open port in firewall).

Service	Incoming ports (TCP)	Change to default configuration
GridFTP	20000-25000	Yes

administrator's script: prepare.sh

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```
#!/bin/bash
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```
# prepare
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```
#-> start routine
```

REPO_URL="http://dgiref.d-grid.de/svn/dgiref/PROD/cf3/repl/repos/external/"

wget -O /etc/yum.repos.d/sl-dgiref.repo ${REPO_URL}/sl-dgiref.repo

```
# Prepare for gLite
```

wget -O /etc/yum.repos.d/glite-WN.repo http://grid-deployment.web.cern.ch/grid-deployment/glite/repos/3.1/glite-WN.repo

wget -O /etc/yum.repos.d/lcg-CA.repo http://grid-deployment.web.cern.ch/grid-deployment/glite/repos/3.1/lcg-CA.repo

```
# Missing packages installation  
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```
yum -y install jdk gcc4 gcc4-c++
```
```
#<- end routine
```

Install

Please note, that in this the reference installation release we do not describe the MPI packages.

administrator's script: install.sh

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```
#!/bin/bash
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# install worker node packages
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yum -y install glite-WN-version lcg-CA
```

Configure

Mount File system (see cluster:nfs/3/client)
Configure torque mom
Configure users
Prepare WNs for gLite
- The packages for the gLite middleware and OGSA-DAI will be provided by NFS server.
- The middleware configuration for all Worker nodes is unique to any WN.
- This require the corresponding WN performs the write rights for the configuration scripts to the directory /opt/glite-MW.
- This directory mounts with appropriate write rights.
- Rights configuration can be changed later, after general configuration.
- The specific configuration can be implemented using the prepared templates on the: http://www.d-grid.de/index.php?id=132
- The info.def, groups.conf and users.conf files are required for the WN configuration.

Note: The site-info.def have the JAVA_LOCATION which should be configured!

WARNING: 
The dgrid_env.sh script should be edited and the variables VOS, INSTALL_ROOT and DGRID_VO_DIRECTORY adjusted. The script ensures that only the D-Grid VOs users used the middleware environment variables.

The dgrid_env.sh is calling another script - grid_env.sh

Optional adjustment
- In order to accelerate the WN configuration, the Certificates and CRLs configurations can be denied.
- They will be executed on the gLite-CE. This require removing the following functions from the $GLITE_DIR/glite/yaim/scripts/node-info.def: install_certs_userland, config_fix_edg-fetch-crl-cron and config_crl by using the function TAR_WN_FUNCTIONS.

The following error message is NOT important: [ERROR] Failed to add group

administrator's script: configure.sh

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#!/bin/bash
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# configure WNs
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# Torque Mom configuration
```

TORQUE_SERVER="<FQDN of TORQUE-Servers>"

echo "${TORQUE_SERVER}" > /var/spool/pbs/server_name

cat > /var/spool/pbs/mom_priv/config << EOF

```
\$pbsserver ${TORQUE_SERVER}
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```
\$logevent 255
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```
\$ideal_load 4
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```
\$max_load 10
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```
\$usecp *:/home /home
```
```
EOF
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/etc/init.d/pbs_mom start
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# Users configuration
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# User and group database 
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# Is distributed by CFengine. 
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## User environment linking
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ln -s $GLITE_DIR/etc/profile.d/dgrid_env.sh /etc/profile.d

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# Prepare WNs for gLite
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## mount glite-MW 
```

# The appropriate gLite packages directory form the NFS server should be mounted to the

# local directory /opt/glite-MW as the following:

```
GLITE_DIR=/opt/glite-MW
```
```
NFS_SERVER="<Name of NFS-Server>"
```
```
mkdir -p $GLITE_DIR
```

echo "${NFS_SERVER}:/srv/glite-MW  ${GLITE_DIR}  nfs  \

nfsvers=3,intr,nosuid,rsize=32768,wsize=32768  0 0" >> /etc/fstab

```
mount -a
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# gLite middleware configuration 
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```
 
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cp site-info.def $GLITE_DIR/etc/
```

cp groups.conf users.conf $GLITE_DIR/etc/

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# Optional adjustment 
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```
<...>
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```
 TAR_WN_FUNCTIONS="config_check_tar
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```
 config_tar_user_env
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```
 config_replica_manager
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```
 config_lcgenv
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```
 config_java
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```
 config_glite_tar_wn
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```
 config_rgma_client
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```
 config_fts_client
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```
 config_gsissh"
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```
<...>
```
```
 
```
```
# Configure nodes:
```

$GLITE_DIR/glite/yaim/scripts/configure_node $GLITE_DIR/etc/site-info.def TAR_WN

Proceed

Currently there are no information available.

administrator's script: proceed.sh

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```
#!/bin/bash
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# proceed
```

Initial test

Currently there are no initial tests available.

administrator's script: test.sh

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```
#!/bin/bash
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# test
```

Update

Use the standart rpm commands:

administrator's script: update.sh

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```
#!/bin/bash
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```
# update WN packages
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# Reinstall packages:
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 rpm -Uvh --force package-to-reinstall.rpm

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```
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# delete installation:
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```
 rpm -Uvh --force package-to-delete.rpm
```

cluster:Worker/1/node

Contents

Worker/1/node

Prepare

Install

Configure

Proceed

Initial test

Update

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