Published on Public Library of Science (http://www.plos.org/cms)

Journal Websites - Topaz 0.9 rc1 Upgrade [1]

Submitted by Richard Cave on Thu, 2008-07-17 17:03.

Last night, we upgraded the journal websites to Topaz 0.9 rc1 [2] (rc1 because this is a “beta” 0.9 release). The development for this release focused on performance and stability - specifically to alleviate the sluggish speed of the websites and the pain of ingests.

( categories: [3] )

Topaz 0.9 (rc1) - Site Maintenance Tonight on the PLoS Journals [4]

Submitted by Richard Cave on Wed, 2008-07-16 18:08.

We're going to take down the journal websites for a few hours tonight starting at 7pm PST. Russ [5] is going to upgrade to Topaz 0.9 (rc1) on the production servers while Josh [6] replaces/rebuilds the dead drive on the Mulgara server.


( categories: [7] )

Sunday Outage Sunday [8]

Submitted by Richard Cave on Mon, 2008-07-14 15:38.

We experienced a hardware malfunction yesterday that caused the TOPAZ [9] hosted journals to be offline from 4pm - 10pm PST.

James [10] sent an email late afternoon yesterday indicating site errors on the PLoS journal websites. Soon after his email, the IT team started receiving SMS alerts. I assumed that something had occurred with the Topaz framework and started looking at the appropriate log files but couldn't find anything. I spent the requisite amount of time banging my head against the "site error" wall without success and I called up Russ [11] for assistance. After a bit of digging through the server logs, he found the culprit - a drive had failed on the Mulgara [12] server. This drive is part of a RAID 0 configuration, so we didn't lose any data but we also mysteriously lost the connection from the Mulgara server to the DAS array [13] (disk storage for the Mulgara data).

( categories: [14] )

Update on Performance Issues of PLoS Websites [15]

Submitted by Richard Cave on Tue, 2008-03-18 17:56.

Performance of the websites hosted on Topaz [16] has increased over the last two weeks with a variety of patches ported to the production servers. We still have an outstanding memory problem that requires a restart of the Topaz applications three times a day (these restarts usually occur around midnight, 8am and 4pm with a duration of less than 10 minutes). I feel that we're close to diagnosing the memory problem which is the last performance hurdle.

( categories: [17] )

Performance Issues of PLoS Websites [18]

Submitted by Richard Cave on Mon, 2008-03-03 13:19.

We’re continuing to experience slowness and intermittent downtime for the websites hosted on Topaz [19]. At this time, the priorities for the IT and Topaz teams are to improve stability of the Topaz applications and increase the performance of the web sites.

( categories: [20] )
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[1] http://www.plos.org/cms/cms/node/381
[2] http://www.plos.org/cms/node/379
[3] http://www.plos.org/cms/cms/tech
[4] http://www.plos.org/cms/cms/node/379
[5] http://www.plos.org/about/people/itweb.html#ruman
[6] https://www.plos.org/about/people/itweb.html#jklavir
[7] http://www.plos.org/cms/cms/tech
[8] http://www.plos.org/cms/cms/node/377
[9] http://www.topazproject.org
[10] http://www.plos.org/cms/
[11] http://www.plos.org/about/people/itweb.html#ruman
[12] http://www.mulgara.org/
[13] http://en.wikipedia.org/wiki/Direct-attached_storage
[14] http://www.plos.org/cms/cms/tech
[15] http://www.plos.org/cms/cms/node/341
[16] http://www.topazproject.org/
[17] http://www.plos.org/cms/cms/tech
[18] http://www.plos.org/cms/cms/node/334
[19] http://www.topazproject.org/
[20] http://www.plos.org/cms/cms/tech
[21] http://www.plos.org/cms/cms/blog/6%3Fpage%3D1
[22] http://www.plos.org/cms/cms/blog/6%3Fpage%3D2
[23] http://www.plos.org/cms/cms/blog/6%3Fpage%3D3
[24] http://www.plos.org/cms/cms/blog/6%3Fpage%3D4
[25] http://www.plos.org/cms/cms/blog/6%3Fpage%3D1
[26] http://www.plos.org/cms/cms/blog/6%3Fpage%3D4
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