Kazuro Furukawa, KEK, Nov.2009.Web mirror at KEK 1 JACoW Mirror Web at KEK Kazuro Furukawa / KEK presented by Akihiro Shirakawa / KEK Nov.2009.

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Presentation transcript:

Kazuro Furukawa, KEK, Nov.2009.Web mirror at KEK 1 JACoW Mirror Web at KEK Kazuro Furukawa / KEK presented by Akihiro Shirakawa / KEK Nov.2009.

Kazuro Furukawa, KEK, Nov.2009.Web mirror at KEK 2 JACoW Mirror Web  Epaper.kek.jp  YongHo-Chin-san and a student had originally organized the mirror site  Present mirror at epaper.kek.jp  Furukawa inherited the task of mirroring since April 2007  The machine itself is managed by Chin-san  Also considering to migrate to a server at KEK computer center

Kazuro Furukawa, KEK, Nov.2009.Web mirror at KEK 3 Mirroring  Triggered by Announcement from Ronny / CERN  also by Automatic monitoring of ‘Updates’ and ‘TheConferences’ pages from CERN  Full automatic mirroring is not considered (because of resources at the both ends)  Mirror within a week (or normally a couple of days)  Sorry for the slowness  Mirror with simple scripts to absorb server differences  Or with a package by Ronny or conference managers  Post modifications for local information  Search function is carried at CERN

Kazuro Furukawa, KEK, Nov.2009.Web mirror at KEK 4 Status (as of Oct.2009.)  Archive size  Approximately 30GByte in total  Access  Receives top page accesses of 25 times a day  Receives approximately hits per day (for whole archive)  Large part (>30%?) of them comes from search-engine crawlers  Serves approximately 1.5-Gbytes per day  Relatively stable

Kazuro Furukawa, KEK, Nov.2009.Web mirror at KEK 5 Mirror Web (minor) Issues  With some discussions with Ronny  File names with spaces and special characters  Maintainable in the future (with other web servers)?  Javascript-based photo gallery  Slightly tricky to build mirror  Unusual tools and manual handlings  Stable even with future browsers?  Large photo galleries  As Ronny mentioned in the last JACoW team meeting  Sometimes the size of the directory comparable to that of papers  May need automatic mirroring (?)  Brute-force mirror is bad  Need certain protocol between the main server and the mirror  Then additional mirrors become possible

Kazuro Furukawa, KEK, Nov.2009.Web mirror at KEK 6 Thank you Please send your enhancement ideas to or to YongHo-Chin-san or to Akihiro-Shirakawa-san