Enabling Grids for E-sciencE SA1 EGEE-II INFSO-RI The Pre-Production Service in WLCG/EGEE A. Retico, N. Thackray CERN – Geneva, Switzerland PPS contributes to the quality of gLite middleware: - Software and release documentation - e-science applications from VOs benefit of a - Feedback is given for early bug fix to gLite before releasing into production are validated through the operation in a real grid in real conditions scaled environment for validation and debugging before they are moved into production The PPS grid counts about 30 sites providing resources and manpower Pre-Production Service cooperates with the OSG Integration Testbed (ITB) to verify EGEE/OSG inter-operability across gLite releases The EGEE The EGEE Pre-Production Service (PPS) is a distributed service whose goal is to give early access to new services to WLCG/EGEE users in order to evaluate new features and changes in the release

Enabling Grids for E-sciencE SA1 EGEE-II INFSO-RI Pre-Production Service Infrastructure A. Retico, N. Thackray CERN – Geneva, Switzerland ~30 sites ~50 CEs live on PPS BDII ~60 SEs 4 FTSs 16 countries SLA for PPS sites All PPS sites must comply with all of the following terms, unless there is a specific agreement with the PPS management to the contrary. 1) The running of a PPS site will probably not take 1 FTE. However, during the time that a new release is passing through the pre-production phase, the site administrator(s) must make their PPS site their absolute top priority. Outside of this pre-production phase, the pre-production site can take a lower priority (but not 0). 2) Must be at least 0.4 FTE (equivalent to 1 person, 2 full days per week). 3) The site must send representation to all PPS operations meetings. 4) The site must supply either ≥ 1 core service or CE + WNs + SRM storage + MonBox or all of these. DILIGENT ( pre-production infrastructure is composed by 6 sites: CNR: Pisa, Italy ENG: Rome, Italy ESA: Rome, Italy SNS: Pisa, Italy UNIBAS: Basel, Suisse UoA: Athens, Greece The "diligent" VO is also supported by 10 other EGEE PPS sites. This infrastructure is mainly used to: store of the DILIGENT user communities data store the DILIGENT services archives used in the deployment of the DILIGENT service execute the DILIGENT watermarking application execute feature extraction applications execute application defined as part of a compound service manage the DILIGENT users and their groups/roles DILIGENT ( pre-production infrastructure is composed by 6 sites: CNR: Pisa, Italy ENG: Rome, Italy ESA: Rome, Italy SNS: Pisa, Italy UNIBAS: Basel, Suisse UoA: Athens, Greece The "diligent" VO is also supported by 10 other EGEE PPS sites. This infrastructure is mainly used to: store of the DILIGENT user communities data store the DILIGENT services archives used in the deployment of the DILIGENT service execute the DILIGENT watermarking application execute feature extraction applications execute application defined as part of a compound service manage the DILIGENT users and their groups/roles What about the HEP VOs? As a subjective and qualitative indicator of the effort spent on different activities done in PPS, the plot below shows the number of exchanged on dedicated mailing lists. Standard Usage (5%): VOs use SW regularly released Special Activities (37%): VOs test non-certified SW (e.g. SRMv2) Release Testing (15%): few selected sites do pre-deployment testing Operations (43%): ~ 30 sites maintain a service running High operation costs compared to poor (standard) usage by VOs => Revision of the mandate in study What about the HEP VOs? As a subjective and qualitative indicator of the effort spent on different activities done in PPS, the plot below shows the number of exchanged on dedicated mailing lists. Standard Usage (5%): VOs use SW regularly released Special Activities (37%): VOs test non-certified SW (e.g. SRMv2) Release Testing (15%): few selected sites do pre-deployment testing Operations (43%): ~ 30 sites maintain a service running High operation costs compared to poor (standard) usage by VOs => Revision of the mandate in study Fri Mon Tue Thu Mon Tue … 2 weeks later... Wed list of issues Release Process PPS sites contributing to release operations: PPS-CNAF: manages PPS repository PPS-LIP, CERN_PPS, KIAM-PPS, UKI- SOUTHGRID-BHAM-PPS, PPS-IFIC, CESGA-PPS, prague_cesnet_pps: pre-deployment testing PPS sites contributing to release operations: PPS-CNAF: manages PPS repository PPS-LIP, CERN_PPS, KIAM-PPS, UKI- SOUTHGRID-BHAM-PPS, PPS-IFIC, CESGA-PPS, prague_cesnet_pps: pre-deployment testing Tools for monitoring, operations and policy enforcement are in place in PPS in the same fashion as in production. SAM, gstat, GridView, FCR CIC Portal is also extended to support pre-production operations General operations supported by the EGEE ROCs SAM Tests are run independently in PPS by PPS-RAL and PPS-CYFRONET (UPATRAS did it in the past) All content available at