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---+ CREAM Test work plan (WORK IN PROGRESS) ---++ Introduction The CREAM testsuite is a set of python scripts that interacts with the CREAM command line tools in order to perform several functional tests. ---++ Installation and setup The easiest way to deploy the testsuite is to have a UI node already available, for further details refer to the [[https://twiki.cern.ch/twiki/bin/view/LCG/GenericInstallGuide310#Installing_the_Middleware][Generic Installation and Configuration Guide]]. The testsuite can be installed using yum creating a file called _testsuites.repo_ in the yum.repos.d directory with the following definition: <verbatim> [testsuites] name=Testsuites baseurl=http://devel12.cnaf.infn.it:7444/repository/testsuites/ enabled=1 </verbatim> and then running <verbatim> yum update yum install glite-testsuites-cream </verbatim> After the installation it is suggested to check if the environment variable *GLITE_LOCATION* points to the correct gLite installation directory, i.e. the one containing the bin folder with the CREAM clients. ---++ Work plan ---+++ Testsuite composition The set of test can be divided into two main categories, according to the type of status detection mechanism for a job: * with polling (synchronous): * [[CreamTestMonitoredCancel][cream-test-monitored-cancel]] * [[CreamTestMonitoredLeaseExpired][cream-test-monitored-lease-expired]] * [[CreamTestMonitoredLeaseUpdated][cream-test-monitored-lease-updated]] * [[CreamTestMonitoredProxyExpired][cream-test-monitored-proxy-expired]] * [[CreamTestMonitoredSubmit][cream-test-monitored-submit]] * with notifications (asynchronous): * [[CreamTestNotifiedCancel][cream-test-notified-cancel]] * [[CreamTestNotifiedLeaseExpired][cream-test-notified-lease-expired]] * [[CreamTestNotifiedLeaseUpdated][cream-test-notified-lease-updated]] * [[CreamTestNotifiedSubmit][cream-test-notified-submit]] ---+++ Proxy management Each test can be run using either an external user voms-proxy or with an internal management of the voms-proxy. The default mechanism is using an external voms-proxy. The external voms-proxy is not renewed by the test, the user is responsible for updating that credential if required in such a way that it does not interfere with tests, for example "renaming" the new proxy into the old one. The external voms-proxy path is defined with the environment variable *X509_USER_PROXY*, the main default is /tmp/x509_uuid. With the internal management of the voms-proxy the testsuite keeps track of the renewal of that credential, the user has just to provide a valid personal certificate and private key. The environment variables required for enabling this mode are: *X509_USER_CERT* and *X509_USER_KEY*; when this mode is selected each test requires the definition of the VO to be used (option *--vo*) and the voms-proxy-init client must be properly configured. ---+++ Delegation management Each test can be run either using a single delegated proxy on the CE for all the submissions or with one delegated proxy per submitted job, see *--delegationType* option. The tester must be aware of using the second mode can overload the entire system, both the service and the testsuite, so the tuning of the test parameters must consider that issue. ---+++ Hints for test tuning * Due to unavoidable delays in the command scheduling, the life-time of the job submitted with the cream-test-notified-cancel has to be at least 3 times longer than the rate parameter.
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Topic revision: r6 - 2008-11-17
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PaoloAndreetto
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