ct-grid July 2009

ct-grid@nikhef.nl

6 participants
5 discussions

[Ct-grid] Next BiG Grid Meeting: Monday 20 July 2009 13.30h in room H3.31
by Oscar Koeroo 20 Jul '09

20 Jul '09

The Next BiG Grid meeting will be held on Monday July 20th 2009 (today), from 13.30-14.30h in room H3.31. Agenda: - Operations summary - Middleware - Applications - AOB Videoconf is available as usual. Minutus of the previous meeting(s) are located here: https://www.nikhef.nl/pub/departments/ct/grid/2009/ Hope to see you all, Oscar Koeroo

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[Ct-grid] New VLET Release 1.0.1
by Piter T. de Boer 15 Jul '09

15 Jul '09

********************************************************* Announcement: New VLET Release: 1.0.1 (15 - July - 2009) ********************************************************* Hello users, developers and other interested people, (Apologies if you receive this email more then once). There is a new VLET Release available. Version: 1.0.1 This is a bug fix release for 1.0.0. I attached the release notes. Downloads, see: - https://gforge.vl-e.nl/frs/?group_id=19 Happy Browsing, Piter T. de Boer ****************************************************************************** VL-e Toolkit Release Notes ****************************************************************************** * * Copyright 2007-2009 The Virtual Laboratory for e-Science (VL-e) * * Licensed under the Apache License, Version 2.0 (the "License"). * You may not use this file except in compliance with the License. * You can obtain the Apache License at the following location: * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * Info: * See: http://www.vl-e.nl/vbrowser/ * === Release notes for 1.0.1 === Date: 15 july 2009 This is a bug fix release. About the release: === - vlet-1.0.zip contains VLET "Core" without application plugins. - vlet-all-1.0.zip contains VLET with the VLEMED and AID plugins. - vlet-all-gars-1.0.zip contains the GAR files (grid services). Note that the LFC Grid Service is NOT needed anymore to access LFC servers. Updates: === - UserGuide has been updated to cover most of the significant changes in 1.0 Fixed bugs: === - The value of 'replicasNrOfTries' was always reset to 0. This has been fixed. - Replicas from SRM V1 Storage Elements can now be read. Storing at a V1 SRM service is still not supported as most storage element support a V2.2 interface as well which will be used if available. - Under certain conditions uploading a file to an LFC location would try the upload only once instead of the specified 'replicaNrOfTries'. - A bug in the parsing or user and domain settings of an SRB location has been fixed which garbled the SRB Server Settings. - Under Cygwin the local filesystem implementation would try to use the 'stat' command which failed. This has been disabled. - When editing a text using the embedded text editor, the original file permissions would be reset. These are now kept. - Port numbers have been removed from replicas registered in the LFC server to stay compatible with the lcg-* commands. - As of VLET 1.0, all JavaGAT libraries and dependencies have been removed. It wasn't never used and no plugins ever have been developed using JavaGAT. - See bugtracker for more details about the above bugs. === Release notes for 1.0 === Date: 27 May 2009 Features: === VBrowser: - Added monitoring (still work in progress). Some methods now will display a 'Task Monitor' similar to the already existing "Transfer Dialog". - New Properties editor. Shows resource properties in separate tabs. VRS/VFS: - New API. See vrs.* and vfs.* classes. - SSH Passphrase authentication added ! Use ~/.ssh/id_rsa file or change it from the SSH option to point to your SSH key needed for passphrase authentication. - LFC: Added New Pure Java implementation for LFC - BDII Service is now used to query VO allowed Storage Elements. Replica URIs are automatically matched against these Storage Elements. - Old 'WrapperLFC' is not supported anymore. The grid service has been removed from the gar distribution. - Updated SRM driver to work correctly and efficient with LFC. - Third party copying between GridFTP,SRM and LFC has been updated to work with all possible combinations between them, since the default transport protocol used in SRM and LFC is GridFTP. - Added transfer monitoring in 3rd party GridFTP transfers. uricopy.sh: - added "-info" and "-mkdirs" option to uricopy.sh script. The latter create the full path of the target directory if not existing yet. Script tested with new LFC driver. Seems to work. Other: - VLTerm supports more vt100 and xterm codes and is now an almost working terminal emulator. - Image viewer support zoom: double click maximize/minimize and use mouse wheel to zoom in/out. API: - Updated Virtual Resource/FileSystem API to "1.0" See JavaDOCs for details. Bugs: === - Resource Folders now correctly save a multilevel hierarchy of Resource Descriptions. - Default SRB and LFC properties were not correctly read from vletrc.prop. Use "srb.<server property>=..." and lfc.<server property>=..." to specify installation defaults. - Fixed a lot a bugs due to asynchronous browsing. VBrowser panels now can be populated in the background by for example a Query Plug-in without corrupting the internal VBrowser data structure. - Fixed DataChannel Authentication mismatch when using third party transfer between old (1.x) Grid FTP servers and new (2.x). Needed for true 3rd party copying between GFTP, SRM and LFC servers. - For more bug fixed see the bugtracker.

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[Ct-grid] getalletjes
by Drenth, Eduard 08 Jul '09

08 Jul '09

Hi all, For a presentation I will present a slide about the grid (see attachment), it would be nice to have some figures on the amount of machines involved where applicable. Can someone provide these figures? If possible before tomorrow afternoon? part | amount --------------------------- UI | WMS | CE | HN | WN | LFC | SE | Thanks in advance, Eduard ------------------------------------------------ Eduard Drenth Logica Groningen Java / XML specialist 06-20943428 Please help Logica to respect the environment by not printing this email / Pour contribuer comme Logica au respect de l'environnement, merci de ne pas imprimer ce mail / Bitte drucken Sie diese Nachricht nicht aus und helfen Sie so Logica dabei die Umwelt zu schuetzen / Por favor ajude a Logica a respeitar o ambiente nao imprimindo este correio electronico. This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.

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[Ct-grid] Next BiG Grid Meeting: Monday 8 June 2009 13.30h in room H3.31
by Dennis van Dok 06 Jul '09

06 Jul '09

The Next BiG Grid meeting will be held on Monday 8 June 2009, from 13.30-14.30h in room H3.31. Agenda: - Presentation by Wico Mulder (Logica) - Operations summary - Middleware - Applications - AOB Videoconf is available as usual. This meeting's special feature is a presentation about learning agents by Wico Mulder. You are all cordially invited to join! Wico Mulder is a PhD-candidate at the UvA researching how autonomous learning agents can help to manage large grid systems. In particular, his field of interest is mapping out events that cross domain boundaries, such as between WMS and CE. As an example he will show patterns of job-flow in the RUG-CIT and Nikhef domains. Hope to see you all, Dennis van Dok

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[Ct-grid] Grid questions
by Drenth, Eduard 01 Jul '09

01 Jul '09

Dear all, First let me shortly introduce myself. I am a Java developer at Logica, at the moment involved in a project in which we strive to introduce the power of agent technology in grid country. The main focus is the improvement of problem handling and user feedback. Could you please confirm the correctness of the drawing I've made for the grid? Does it effectively visualize the working of the grid (storage)? Do you have any suggestions? I have some more questions. 1 Which identifiers are allowed in JDL for storage references (lfn, guid, surl, turl)? 2 Is nagios present at all systems that make up the grid? 3 Can someone describe the process of scheduling and load balancing for the WMS and the CE, or point me to documentation? I am mainly interested in how and when these processes use information on the availability of the resources needed by a job. Thanks in advance, Eduard ------------------------------------------------ Eduard Drenth Logica Groningen Java / XML specialist 06-20943428 Please help Logica to respect the environment by not printing this email / Pour contribuer comme Logica au respect de l'environnement, merci de ne pas imprimer ce mail / Bitte drucken Sie diese Nachricht nicht aus und helfen Sie so Logica dabei die Umwelt zu schuetzen / Por favor ajude a Logica a respeitar o ambiente nao imprimindo este correio electronico. This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.

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ct-grid July 2009