From: 劳春燕的BLOG
一群事业有成的同学回去看望他们的大学老师,很快他们开始抱怨生活和工作中的压力。
Veritas volume manager (vxvm) and Veritas file system (vxfs) utilize VRTSvlic to manage its licenses since version 3.5. In version 3.2 or early, VRTSlic package was used. If these two packages are both installed in one system. It would be confusing.
There was a strange problem with our ensembl server that usually the server becomes “inaccessible” in the morning, but when we tested a few times, the server works extremely well during the day. However, it becomes “inaccessible” again tomorrow morning.
One of our web server response “500 internal server error” occasionally. As this server is used for ensembl, which incurs 20-30 background process for each *view (i.e. contigview, geneview), we figured out a few tunable parameters for better performance.
The background for this issue that our user found local ensembl mirror sometimes inaccessible, but after a few refresh the pages comes out again. I realized the problem was caused by the small default value of max_connections in MySQL server, and the fact the ensembl uses DBI instead of Apache::DBI in the perl.startup script.
In the latest CVS code of ensembl, perl.startup file still uses “DBI” module, soI believe it will have potential performance issues on other mirror sites.
From: wenxuecity
海外经济界一直对中共片面发展经济忽视,政治改革的做法存有很大的疑虑。专家数年前也对中共提出严重警告,警告中共经济将会在2008年之后发生经济崩溃的严重后果。
As our current R environment still uses R-2.1, the latest ROracle-0.5.8 can not be installed (minimal requirement is 2.3+). Instead, we tried to install ROracle-0.5.5.
A brief outline of the steps to see new symmetrix disks after they have been mapped on storage side. This is very useful notes for veritas administration.
From: wenxuecity
(韩德强, 在清华大学中国与世界经济研究中心《开放与经济安全》讨论会上发言的修订稿。9月2日发言,9月27日修订完毕。)
王志乐先生认为,中国处于一个半世纪以来经济安全度最高的时期。我的观点恰好相反:中国经济安全到了建国以来最危险的时期。
The storagescope data are zipped xml files and could be copied directly from old server to new servers without any problem. Our old server is 5.2SP3 and the new on eis 5.2SP4. There is no version imcompatibility.