上星期一(7/16)，是母校銀樂隊的50周年大日子，剛中學畢業的師弟Sunny，居然有辦法隔了幾重山找到了我的聯絡，然後當然想我出席啦，說到底我也是81-82年連續兩屆的銀樂隊隊長，當年都算係中堅份子，雖然我
Weekly spam summary on July 28th, 2007
This week, we:
- got 10,691 messages from 231 different IP addresses.
- handled 17,807 sessions from 1,456 different IP addresses.
- received 301,407 connections from at least 76,444 different IPaddresses.
- hit a highwater of 11 connections being checked at once.
Connection volume is up slightly from last week , but at this point 10,000 connections a weekmore or less is probably
救贖
這一刻，我是真心慶幸，趕得及回頭，來得及放手。
像我如斯怕寂寞的人，賴以維生就是一切的尋歡作樂。
遊戲永遠越危險越刺激越好玩，理所當然的動魄驚心，自然傷身傷心。
從來不覺得放手就等於救贖，這不是一物換一物，
像我如斯怕寂寞的人，賴以維生就是一切的尋歡作樂。
遊戲永遠越危險越刺激越好玩，理所當然的動魄驚心，自然傷身傷心。
從來不覺得放手就等於救贖，這不是一物換一物，
How big is the Slashdot effect?
Recent events have made me morecurious than ever about just how big the Slashdot effect is. If you get linked toby one of the popular sites like Slashdot, Digg, or reddit, how muchload are you actually going to get hit with?
(Correspondingly, if you are trying to make sure a web application canstand up to a Slashdotting, how much load do you need to be able tohandle?)
Unfortunately, good current data is hard to come by; most of the reportson the details
An unexpected performance stress test for DWiki
This morning, I got to see how well DWiki could stand up to high load.While getting attacked by something that has all the signs of a spambotgone berserk doesn't exactly make me happy, I was cheered to see that DWiki stood up to the situation.
(And there's a little bit of me that's dancing around in triumphthat all of the work that I've done to prepare for this finallypaid off and actually worked out for real.)
Over the incident DWiki averaged
精英受害者
首先我得承認，我從來不是好學生。讀中學的時候，我十分看不起師長們口中的好學生，也許他們也同樣看不起我這種不好不壞的普通人。因此，在成長的階段，我總是在思考，師長口中的好學生是不是代表完美的人？我們的敎
Solaris Volume Manager and iSCSI: a problematic interaction
Solaris Volume Manager (which I still call DiskSuite) keeps informationabout the state of its logical volumes in what it calls a 'metadevicestate database' (a metadb for short). You normally keep a number ofreplicas of this state database, scattered around the physical devicesthat DiskSuite is managing for you.When you are using metasets , all of the metadbreplicas have to be on disks in the metaset. This is a logicalconsequence of the DiskSuite tools needing to update the metadata toreflect which machine owns a
銘記於心
It is only shallow people who do not judge by appearances. The true mystery of the world is the visible, not the invisible." - Oscar Wilde
這句話，一直銘記於心。
何必將一切努力詮釋力求美化？
你喜歡上一個人，在最初，都是因為他的眉目吸引了你。
這句話，一直銘記於心。
何必將一切努力詮釋力求美化？
你喜歡上一個人，在最初，都是因為他的眉目吸引了你。
Using iSCSI and AOE to create artificial disk errors
One of the nice things that you can do with iSCSI and AOE is use themto test how your system (volume management, filesystem, programs, etc)really deal with low level disk errors. All sorts of interesting issuescan come crawling out of the woodwork when you do this; it is veryeducational and occasionally rather alarming.
(Testing this sort of thing is otherwise fairly difficult, because fewpeople have controllable error-producing hard drives sitting around,especially hard drives that will repeatedly run fine for a while
An interesting issue when yum upgraded gaim
A while back, the Gaim chat program got renamed to Pidgin forcomplicated reasons. Fedora duly released a pidgin package that saidit replaced the old gaim package, and I duly typed yum update on myx86_64 machine, and things came to a screeching halt with errorsabout file conflicts . It turned out that theupdates repository had both the i386 and the x86_64 versions ofpidgin, and yum was picking the i386 version, which depended on