Globus 2 Installation and Setup Dr. David Wallom Grid Support Centre Aims • • • • Describe the components of the Globus Toolkit Version 2 and its release mechanism. Install from the source distribution the 2.4.2 Globus release; – Showing dependant software such as compilers/interpreters. Setup and start all services; – Show common housekeeping tasks such as user addition, log file interpretation etc. Configuration of more in depth tasks; – Hierarchal MDS setup. – Alternative job manager setup. – Recognition of multiple certification authorities. 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 2 Grid Support Centre What is a GRID • A GRID may be defined as a network of disparate and geographically physically separated machines engaged using some form of ‘middleware’ to produce a common functionality. 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 3 Grid Support Centre The Globus Toolkit, an Overview Three component structure (pillars) of the toolkit • Resource management • Allocation of available resources • Information services • Provides information about grid resources • Data management • Accessing and managing data in a grid environment 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 4 Grid Support Centre Resource Management • Resource Management involves the allocation and management of Grid resources. It includes components GRAM, DUROC and GASS. – GRAM: Globus Resource Allocation Manager – DUROC: Dynamically-Updated Request Online Coallocator – GASS: Global Access to Secondary Storage 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 5 Grid Support Centre Job Submission Architecture 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 6 Grid Support Centre Resource Specification Language • Common notation for exchange of information between components – Syntax similar to MDS/LDAP filters • RSL provides two types of information: – Resource requirements: Machine type, number of nodes, memory, etc. – Job configuration: Directory, executable, args, environment • Globus Toolkit provides an API/SDK for manipulating RSL 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 7 Grid Support Centre RSL Syntax • • • • Elementary form: parenthesis clauses – (attribute op value [ value … ] ) Operators Supported: – <, <=, =, >=, > , != Some supported attributes: – executable, arguments, environment, stdin, stdout, stderr, resourceManagerContact, resourceManagerName Unknown attributes are passed through – May be handled by subsequent tools 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 8 Grid Support Centre Constraints: “&” • For example: & (count>=5) (count<=10) (max_time=240) (memory>=64) (executable=myprog) • “Create 5-10 instances of myprog, each on a machine with at least 64 MB memory that is available to me for 4 hours” 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 9 Grid Support Centre Disjunction: “|” • For example: & (executable=myprog) ( | (&(count=5)(memory>=64)) (&(count=10)(memory>=32))) • Create 5 instances of myprog on a machine that has at least 64MB of memory, or 10 instances on a machine with at least 32MB of memory 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 10 Grid Support Centre Example RSL file (* this is a comment *) & (executable = /bin/date (* <-- that is an unquoted literal *)) (directory =/home/globus ) (arguments = arg1 "arg 2") (count = 1) 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 11 Grid Support Centre Information Services • Information Services provide information about Grid resources. This includes MDS, GIIS and GRIS. – MDS: Monitoring and Discovery Service • GIIS: Grid Index Information Service – One per Virtual Organisation (VO) • GRIS: Grid Resource Information Service – One per machine registered within the VO (Both of these run as the same executable with differing configurations) 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 12 Grid Support Centre Data Management • Controls the ability to access and manage data in a grid environment. This includes components: – GridFTP - This is used to move files between gridenabled storage systems. – Replica Catalogue Mechanism 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 13 Grid Support Centre GridFTP • Why FTP? – Ubiquity enables interoperation with many commodity tools – Already supports many desired features, easily extended to support others – Well understood and supported • We use the term GridFTP to refer to – Transfer protocol which meets requirements – Family of tools which implement the protocol • Note GridFTP > FTP 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 14 Grid Support Centre Replica Management 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 15 Grid Support Centre A Word on GASS • The Globus Toolkit provides services for file and executable staging and I/O redirection that work well with GRAM. This is known as Globus Access to Secondary Storage (GASS). • GASS uses GSI-enabled HTTP as the protocol for data transfer, and a caching algorithm for copying data when necessary. • The globus_gass, globus_gass_transfer, and globus_gass_cache APIs provide programmer access to these capabilities, which are already integrated with the GRAM job submission tools. 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 16 Grid Support Centre What are we installing? • Reference implementation of Grid Protocols • GRAM – globus_gatekeeper (runs as part of xinetd) • MDS – gris (Started as SXXgris) • GridFTP – in.ftpd • GSISSH – gsisshd 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 17 Grid Support Centre Package Management and Installation • Generally recommended to use the Grid Packaging Toolkit – Comes with various user tools for: • Installation of binary bundles • Building of source bundles • Updating already installed bundles • Querying installation tree – For the developer this also has tools for constructing source and binary bundles for further distribution • A similar idea to RPM 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 18 Grid Support Centre GPT and What Is It? • A set of PERL libraries/modules • Requires Perl 5.005 or better to be installed • Can install independently of Globus – $GPT_LOCATION • Ability to manage post installation setup of packages • Ensures that no package will be reinstalled unnecessarily 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 19 Grid Support Centre Method of Toolkit Distribution • Source and binary bundles – E.g. globus-information-services-client-2.4.2-src_bundle.tar.gz – Contains all the information for package • Dependancies • Post-install setup • Uninstall information • Each pillar has one bundle for each of: – Server – Client – Software development kit 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 20 Grid Support Centre Source Distribution • Advantages: – If you build the code on your own machine then dependencies during build will be found then. – Stops strange unknown errors occurring due to other installed applications and their dependant library versions. – Easier to ultimately debug problems within the toolkit should any occur. • Disadvantages: – Slow due to compilation etc. – Can lead to space problems due to object files etc. 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 21 Grid Support Centre Flavours of Building • • • • Flavours are used to encapsulate compile-time choices – Compiler choice, gcc or vendor specific cc – 32 or 64bit memory model – Debugging information inclusion? – Type of threading, pthreads, other? Currently two flavours – gcc32dbg, gcc32dbgpthr Allow multiple build types for a single installation – Libraries are tagged with the flavour name • libXXX_gcc32dbg.so Headers – Moved into labelled directories • include/gcc32dbg • Include/gcc32dbgpthr 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 22 Grid Support Centre Additional Packages Available • Job Manager Scheduler Support: This is to include support for different job managers beyond the default installed Fork. The currently support other job managers from Globus are: – Condor – LSF – PBS • Reporter Scheduler Support: This allows job manager information to be passed into the GRIS system, this is not done by default for any job manager including fork. All of the above are supported • GSI-SSH: There is a GSI compatible version of SSH and SCP available. This comes from NCSA though and so can have moments of incompatibility with the main Globus release. 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 23 Grid Support Centre Overview of Process of Building and Installing • • • • • • Copy GPT and Globus bundles to your machine Define locations for GPT and Globus Create Globus destination directory Install GPT Install bundles Do post installation tasks 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 24 Grid Support Centre GPT Installation • Make sure GPT_LOCATION and GLOBUS_LOCATION ENV variables are correctly set. • Make sure you have successfully built and installed GPT before continuing. • Commands needed for GPT build; – cp gpt-*.tar.gz /usr/. – cd /usr/. – gzip -dc gpt-*.tar.gz | tar xf – cd $GPT_LOCATION – ./build_gpt 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 25 Grid Support Centre Practical 1 • Start with blank Red Hat 7.3 machine with all updates installed. • You have the ‘root’ password running bash. • Set the following environment variables: – GPT_LOCATION = /usr/gpt-2.2.10 – GLOBUS_LOCATION = /usr/globus • To do: – Download GPT source bundle into correct directories ready for install – Build and install GPT 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 26 Grid Support Centre Current Status of Your Machines • GPT installed in /usr/gpt-2.2.10 • /usr/globus directory created though not yet containing the source bundles • Ready to start the build of the individual bundles 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 27 Grid Support Centre Lunch • Questions so far? 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 28 Grid Support Centre Building Globus Toolkit 2.X • • Initially download the bundles from the Globus Alliance website: – http://www-unix.globus.org/ftppub/gt2/2.4/2.4.2 From within the /usr/globus directory run the following command; $GPT_LOCATION/sbin/gpt-build <bundle_name> <flavour> • • • Repeat this for all bundles; Nominally in the order: – SDK – Server – Client NOTE: – Some of the bundles use threading and some do not – Important to get this correct – These are the flavours as previously discussed • See next table 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 29 Grid Support Centre Bundle Build Flavours Bundle Flavour Data Management bundles gcc32dbg Information Services bundles gcc32dbgpthr Resource Management bundles gcc32dbg GRAM Job Manager Scheduler gcc32dbg GRAM Reporter gcc32dbg GSI-SSH gcc32dbg 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 30 Grid Support Centre GSI-SSH • • • • • • Issued by NCSA Separate to Globus though dependant on GSI security Enables secure login based on digital certificates Defined within the L2G as operating on port 2222 Downloaded as GPT source bundle. Installed in the same way as Globus bundles though only needs unthreaded flavour building. 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 31 Grid Support Centre Post Installation Operations • • • • Source the general user environment setup script: – $GLOBUS_LOCATION/etc/globus-user-env.sh Each package that makes up the Globus Toolkit requires some form of post installation setup: – $GPT_LOCATION/sbin/gpt-postinstall – This performs creation of some of the services setup scripts as well as full description of configuration setting dependant on $GLOBUS_LOCATION Now Globus Security Infrastructure (GSI) needs initialisation, thus creating /etc/grid-security directory and contents – $GLOBUS_LOCATION/setup/globus/setup-gsi Finally verify the installation coherance – $GPT_LOCATION/sbin/gpt-verify 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 32 Grid Support Centre Manual Installation Steps Needed • The addition of globus-gatekeeper and gridftp configuration files for xinetd.d/inetd • Adding port definitions to /etc/services file • Setup soft links for MDS server. • Removing trust for Globus certificates and adding UK EScience CA trust • Installation of host and LDAP certificates • Add users Distinguishing Name definitions to /etc/grid-security/grid-mapfile 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 33 Grid Support Centre Adding /etc/xinetd.d Files • • globus-gatekeeper service gsigatekeeper { socket_type = stream protocol = tcp wait = no user = root env = LD_LIBRARY_PATH=GLOBUS_LOCATION/lib server = GLOBUS_LOCATION/sbin/globus-gatekeeper server_args = -conf GLOBUS_LOCATION/etc/globus-gatekeeper.conf disable = no } grid-ftp service gsiftp { instances socket_type wait user env server server_args log_on_success log_on_failure nice disable } 27/10/2003 27/10/2003 = = = = = = = += += = = 1000 stream no root LD_LIBRARY_PATH=GLOBUS_LOCATION/lib GLOBUS_LOCATION/sbin/in.ftpd -l -a -G GLOBUS_LOCATION DURATION USERID USERID 10 no Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 34 Grid Support Centre Adding to /etc/inetd.conf File • Add the following statements one per line to the file /etc/inetd.conf • globus-gatekeeper gsigatekeeper stream tcp nowait root /usr/bin/env env LD_LIBRARY_PATH=GLOBUS_LOCATION/lib GLOBUS_LOCATION/sbin/globus-gatekeeper -conf GLOBUS_LOCATION/etc/globus-gatekeeper.conf • grid-ftp gsiftp stream tcp nowait root /usr/bin/env env LD_LIBRARY_PATH=GLOBUS_LOCATION/lib GLOBUS_LOCATION/sbin/in.ftpd -l -a -G GLOBUS_LOCATION • To restart service: killall -HUP inetd 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 35 Grid Support Centre Other Tasks • Adding port definitions to /etc/services file: echo "gsigatekeeper 2119/tcp #Globus Gatekeeper" >> /etc/services echo "gsiftp 2811/tcp #GSIFTP" >> /etc/services • Setup soft links for MDS server. ln -s $GLOBUS_LOCATION/sbin/SXXgris /etc/rc.d/init.d/gris ln -s /etc/rc.d/init.d/gris /etc/rc.d/rc3.d/SXXgris ln -s /etc/rc.d/init.d/gris /etc/rc.d/rc5.d/SXXgris 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 36 Grid Support Centre Configuring GSI-SSH • Alter configuration as follows: – Within $GLOBUS_LOCATION/bin • Remove currently installed gsissh, gsiscp & slogin • Move ssh and scp to gsissh and gsiscp • Link gsissh to slogin – Set port numbers for “gsissh” to be 2222 within /etc/services as well as; • $GLOBUS_LOCATION/etc/ssh/ssh_config • $GLOBUS_LOCATION/etc/ssh/sshd_config – Link though to the /etc/init.d directories to create gsisshd and links in rc.3 and rc.5 directories for SXXgsisshd ln –s $GLOBUS_LOCATION/sbin/SXXsshd /etc/init.d/gsisshd ln -s /etc/rc.d/init.d/gsisshd /etc/rc.d/rc3.d/SXXgsisshd ln -s /etc/rc.d/init.d/gsisshd /etc/rc.d/rc5.d/SXXgsisshd 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 37 Grid Support Centre Certificates – Why and Wherefore • Three uses for certificates within Globus – Gatekeeper certificates – used by daemons – LDAP certificate (MDS) – User certificates • These are acquired through the UK E-Science Grid Support Centre or another of the trusted CAs defined through EDG. • They may need format conversion depending on where they have come from 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 38 Grid Support Centre Installation of Certificates • Gatekeeper certificates are located in /etc/grid-security – host{key/cert}.pem • LDAP certificates are located in /etc/grid-security/ldap – ldap{key/cert}.pem • key files must be only owner readable whilst cert should be world readable • Gatekeeper and user commands will not work if incorrect permissions are present on key files 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 39 Grid Support Centre Certificating Authority Trust • Certificates are located in /etc/grid-security/certificates • Three files associated with each Certificate Authority (CA): – xxxxxxxx.0 – PEM formatted CA certificate – xxxxxxxx.r0 – Certificate Revocation List – xxxxxxxx.signing_policy – defines which user certificates this CA will authorise • Remove these files to remove CA trust and add copies of them to add trust 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 40 Grid Support Centre Break • Questions so far? 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 41 Grid Support Centre Host and LDAP Certificates • On floppy disk with each of your machines are preregistered certificates named: – – • You will need to use openSSL to change the format to PEM: – – • openssl pkcs12 -in <type>.p12 -clcerts -nokeys –out <type>cert.pem openssl pkcs12 -in <type>.p12 -nodes -nocerts -out <type>key.pem Permissions must now be change for the generated files: – – • host.p12 ldap.p12 chmod 400 <type>key.pem chmod 444 <type>cert.pem Move the files to their final locations (after making ldap directory) – – mv host*.pem /etc/grid-security/. mv ldap*.pem /etc/grid-security/ldap/. 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 42 Grid Support Centre Using the grid-mapfile • User certificates converted using: – openssl pkcs12 -in mykey.p12 -clcerts -nokeys -out usercert.pem – openssl pkcs12 -in mykey.p12 -nocerts -out userkey.pem • User access is controlled through the mapping of authenticated grid users to local users with the gridmapfile. • Located in /etc/grid-security • Specific format as shown below: “/o=grid/L=London/u=Joe Bloggs” JBloggs13 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 43 Grid Support Centre Review of Progress • • • • • Installed Globus Toolkit version 2.4.2 Installed GSI-SSH 2.5 Configured services for Globus gatekeeper and gridFTP Removed ‘Globus CA’ trust and add UK E-Science Started xinetd, gsisshd and gris services – (Check output of log files in /usr/globus/var/) • Still need to add yourself to /etc/grid-security/grid-mapfile 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 44 Grid Support Centre Testing the Gatekeeper • Log in as a user which has an entry in the gridmapfile • Run #>grid-proxy-init • Run #>globus-job-run <machine_name> /bin/date • Successful output will be the same as running /bin/date from a shell 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 45 Grid Support Centre Command line options • For the globus-job-run command the following options are allowed: globus-job-run {[-:] <contact string> [-np N] <executable> [<arg>...]}.. Where the options are: <contact string> the specific location where the job will run including possible service name if not default -np The number of different processing elements the job will run on. <executable> & <args> the job and its arguments that you wish to run on the grid. The file modifiers -l and -s specify different filespaces: -l[ocal] file is relative to working directory of job (DEFAULT) -s[tage] file relative to job request is staged to job host Full descriptions available from globus-job-run -help 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 46 Grid Support Centre Contact Strings • • Used to specify the names of machines and available services and their locations: Valid forms of the contact string are: – hostname – hostname:port – hostname:port/service – hostname/service – hostname:/service – hostname::subject – hostname:port:subject – hostname/service:subject – hostname:/service:subject – hostname:port/service:subject 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 47 Grid Support Centre MDS Verification • Make sure MDS is running: (as root) service gris start • Run as a registered user #>grid-proxy-init • Submit a test query #>grid-info-search 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 48 Grid Support Centre Command line options • For the grid-info-search command the following options are allowed: grid-info-search [ options ] <search filter> [attributes] Where the options are: -mdshost host (-h) The host name on which the MDS server is running the default is hostname -mdsport port (-p) The port number on which the MDS server is running. The default is port 2135 -mdsbasedn branch-point (-b) Location in DIT from which to start the search. The default is "Mds-Vo-name=local, o=Grid" -anonymous (-x) Use anonymous binding instead of GSSAPI. An example is to query the national information server: grid-info-search –h ginfo.grid-support.ac.uk –p 2135 -b "Mds-Voname=UK e-Science, o=Grid“ -x 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 49 Grid Support Centre GridFTP testing • Run as a normal user #>grid-proxy-init • Now echo notional contents into a file /tmp/file1 • Run #> globus-url-copy gsiftp://<hostname>/tmp/file1 gsiftp://<hostname>/tmp/file2 • Good output will be if file1 and file2 are equal. 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 50 Grid Support Centre Current Status of Your Machines • Each machine is now able to run jobs for its own users. • MDS will use authenticated queries to show local machine information • All services are now running and have been successfully tested (tomorrow we will see how the L2G group has created a set of automated tests to automate those procedures) 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 51 Grid Support Centre Further Routine Tasks • Advisories from Globus • Addition of further users • Logfile checking 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 52 Grid Support Centre Installation of Globus Advisories 1 • Security and bug fix advisories are released by Globus as soon as they become essential • These are located on the web at: http://www-unix.globus.org/toolkit/advisories.html • Classified to be either a bug-fix, security patch or an enhancement. 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 53 Grid Support Centre Installation of Globus Advisories 2 • Before installation of an updated package use gptquery to ascertain which flavours it is installed with (gcc32dbg – threaded or nonthreaded). • To install update packages use: – gpt-build –update <package_name> flavour • Additional specification for ‘noflavour’ is not needed 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 54 Grid Support Centre Installation of Globus Advisories 3 • EXAMPLE – globus_openssl_module [prompt]# $GPT_LOCATION/sbin/gpt-query globus_openssl_module 4 packages were found in /usr/globus that matched your query: packages found that matched your query globus_openssl_module-gcc32dbg-dev ver: 0.2 cmp id: 0.2.0 globus_openssl_module-gcc32dbg-rtl ver: 0.2 cmp id: 0.2.0 globus_openssl_module-gcc32dbgpthr-dev ver: 0.2 cmp id: 0.2.0 globus_openssl_module-gcc32dbgpthr-rtl ver: 0.2 cmp id: 0.2.0 – Therefore to update this module you would run $GPT_LOCATION/sbin/gpt-build -update globus_openssl_module-0.2.tar.gz gcc32dbg gcc32dbgpthr 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 55 Grid Support Centre Practical 3 • Add the advisories from the Globus website onto your install 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 56 Grid Support Centre MDS Reporting • The Monitoring and Discovery Service uses the LDAP protocol for passing machine and service information around such as: – Processing load – Physical Resources (ie disks etc) – Software installations 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 57 Grid Support Centre Creating a Hierarchical MDS System • It is necessary within a unified Grid to have all systems reporting to a single server • To do this you should therefore predefine within your Virtual Organisation its location 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 58 Grid Support Centre GRIS – GIIS Configuration • Both ends of the GIIS-GRIS chain need to be aware of the other Server GIIS Machine 1 GRIS 27/10/2003 27/10/2003 Machine 2 GRIS Machine 3 GRIS Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 59 Grid Support Centre What Happens Now? • User wishes to use your machine – Creates a proxy certifictate derived from a trusted CA • Connects to the gatekeeper on you machine (port 2119) • Authenticated as a local user through the grid-mapfile • Client tool sends a request as a Resource Specification Language (RSL) request • RSL is passed to jobmanager • Job manager controls passing job to local scheduler as well as passing results back to the user. 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 60 Grid Support Centre Conclusions • So far you have: – Installed Globus 2.4.2 on a bare system – Installed all relevant Advisories from Globus – Configured Globus services and run simple jobs across our ‘Grid in a room’ – Installed and used GSI-SSH for certificate based system login 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 61 Grid Support Centre Next • Show further tasks for integration of the system into the L2G • Configuration changes to operate in a secure environment • Only used simple fork jobmanager – need to know about more complicated job managers 27/10/2003 27/10/2003 Globus 2 Installation Setup Globus 2 Installation andand Setup Dr. David Wallom 62 Grid Support Centre