IWR Ideen werden Realität Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Institut für Wissenschaftliches Rechnen Status of Database Services.

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Presentation transcript:

IWR Ideen werden Realität Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Institut für Wissenschaftliches Rechnen Status of Database Services at GridKa CERN Silke Halstenberg, Rainer Kupsch and Doris Wochele

IWR Ideen werden Realität Silke Halstenberg, Rainer Kupsch and Doris Wochele Status GridKa ► Today, we have different local database installations for each service: an Oracle database for FTS a MySQL database for LFC … ► In the future it is desirable to have a robust and failsafe database installation for the different services

IWR Ideen werden Realität Silke Halstenberg, Rainer Kupsch and Doris Wochele Database Deployment at GridKa ► No precise requirements from GridKa users currently ► No long-scale plan for database support in GridKa currently ► No dedicated hardware for database services currently we need better communication

IWR Ideen werden Realität Silke Halstenberg, Rainer Kupsch and Doris Wochele Streams Testbed Hardware 10gRAC with ► 2 Intel ® Xeon™ CPU dual 2.40GHz, 1.5GB RAM ► 36 GB local disk (RAID1) ► 100Mbit/s network, Cluster Interconnect: TCP/IP ► redundant SAN Adapter  no real space limit (IBM FastT 700, 60 GB at the moment)

IWR Ideen werden Realität Silke Halstenberg, Rainer Kupsch and Doris Wochele Streams Testbed Software ► Redhat ES 3.0 Update V4 Patchlevel Kernelversion Elsmp ► 4 GB swap, 400MB /tmp ► Oracle –Nodes:2 –Cluster Interconnect:TCP/IP (Fast Ethernet) –Storage:SAN Storage (IBM FAStT700) –HBAs:Qlogic 2340 –Storage data:ASM : Automatic Storage Management Basis: shared storage devices (SAN) –Storage OCR:shared raw devices (Oracle Cluster Registry and voting disk) –Storage Binaries:local filesystem –Cluster Software:CRS : Cluster Ready Services Basis: shared storage devices (SAN) –ORACLE Version:Real Application Cluster, Cluster Database Software (ORACLE 10g 32 Bit RAC, Enterprise Edition) ► STREAMS activation following CERN documentation

IWR Ideen werden Realität Silke Halstenberg, Rainer Kupsch and Doris Wochele Problems during Streams-Test No stable connection with CERN! ► Test from outside firewall with 1Hz PHP-connect: no problems ► Test communication with „ethereal“: is change of naming the instance (name/IP) the problem? ► Test with different listener names ► Test to provide DNS-names extern (instead of /etc/hosts) ► not solved at the moment....

IWR Ideen werden Realität Silke Halstenberg, Rainer Kupsch and Doris Wochele next plans ► try to fix streams problem with RAC ► try to find out the need for next year ► participate in further tests in 3D maybe... heavy load test with more than 2 nodes on infiniband technology?