4/26/2007

IBM携手MySQL销售开放资源数据

MySQL更值得学习一下了!

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IBM公司日前宣布,计划开始销售竞争对手MySQL的数据库软件,后者为一家开放资源数据库软件制造商,主要用于网页平台,用户包括雅虎、Google以及YouTube等全球著名网站。

据路透社报道,作为世界第二大软件制造商,在本周三美国加州圣塔·克拉拉举办的 MySQL用户会议上,IBM公司领导携手MySQL宣布了合作计划。目前MySQL公司为私营性质,主要开发标准化版本的MySQL开放资源数据库,公司的盈利主要来自于服务、升级、技术支持以及维护等项目。

据悉软件开发者对于MySQL感情颇深,主要因为其完全开放的源代码,这也使得其他程序对其兼容十分简单。实际上,MySQL也是Linux以后,市面上流行范围第二广的开放资源软件,正在逐渐从甲骨文以及微软等主流私有软件制造商的手中抢夺市场份额。

合作协议中表明,未来IBM和MySQL的产品将互相间容,这也意味着MySQL的开放资源数据库将兼容IBM旗下的System i系列商务电脑,例如IBM的i5操作系统 DB2数据库,另外IBM还将开始MySQL数据库的销售。在一份正式声明中,IBM公司发言人表示,虽然在此之前一直与MySQL处于竞争关系,不过在发现用户的实际需求之后,IBM依然决定化干戈为玉帛。
forex.com

IBM的DB2数据库主要用来针对大型机构,例如银行、政府以及保险公司等。而MySQL则更多的应用于网络平台,从网站到小型商务公司。与此同时,DB2数据库平台支持的软件数量有限,然而支持MySQL的程序则数以千计。

4/25/2007

Known issues for DB2 on HP-UX

Abstract
This document describes known HP-UX issues, related to DB2® database products.
Content
Three most recent additions.
  • November 6, 2006. HP-UX 11i v2 - Itanium Architecture.
    Application with unbound threads traps with SIGBUS.
  • November 15, 2005. HP-UX 11i v2 - Itanium Architecture.
    Create Database operation fails with SQL1366 error because of unsatisfied symbol in libIO77.so.1
  • August 23, 2005. HP-UX 11i v2 - PA-RISC Architecture.
    DB2 client running on HP-UX cannot connect to DB2 database running on AIX®.

Known issues when running DB2 9 on HP-UX
  • November 6, 2006. HP-UX 11i v2 - Itanium Architecture.
    Multi-threaded DB2 application, which is using unbound (MxN) threads, traps with SIGBUS.

    The problem is described in HP defect JAGag20888 and was fixed in the HP-UX 11i v3. The fix for HP-UX 11i v2 should be available in the middle of 2007.

Known issues when running DB2 Universal Database™ (DB2 UDB) Version 8 on HP-UX

  • November 15, 2005. HP-UX 11i v2 - Itanium Architecture.
    CREATE DATABASE fails with SQL1366N error. db2diag.log shows "Unsatisfied code symbol 'ots_verify' in load module '/usr/lib/hpux64/libIO77.so.1'".

    The problem was caused by HP patch PHSS_32231 and fixed by the patch PHSS_33424
  • August 23, 2005. HP-UX 11i v2 - PA-RISC Architecture.
    After upgrading HP-UX to 11i Update 2 (11.23.0409), DB2 client running on HP-UX hangs, attempting to connect to database on AIX.

    TCP clients advertise the incorrect window size if the server machine or operating system does not provide the window scaling option (see http://docs.hp.com/en/5990-8153/ch07s36.html)
    The problem is fixed by the patch PHNE_32606. Also, the connection problem could be fixed by executing the following HP-UX command:
    ndd -set /dev/tcp tcp_recv_hiwater_max 65535

Known issues for DB2 on Solaris Operating Environment

Abstract
This document describes known Solaris issues, related to DB2 database products.
Content
Three most recent additions.
  • November 15, 2005
    DB2 trap on Solaris 8 when using with FASTGROUPS registry variable.
  • October 24, 2006
    Performance degradation with Solaris 10 and Solaris 10 Update 1.

Known issues when running DB2 Version 9 on Solaris:

Solaris 10

  • Performance degradation with Solaris 10 and Solaris 10 Update 1
    due to significant increase of CPU User Time (up to 30%).

    The problem is a result of a bug in a Page Coloring mechanism, identified in SUN's CR 6337073. This bug was fixed in the kernel patch 118833-02, though it is recommended to install Solaris 10 Update 2, which comes with kernel patch 118833-17. Another way of fixing the problem is setting consistent_coloring = 2 in /etc/system.

Known issues when running DB2® Universal Database (DB2 UDB) Version 8 on Solaris:

Solaris 8

  • DB2 UDB traps on Solaris 8 when using FASTGROUPS registry variable.

    The DB2 UDB instance traps in a dlopen(NULL, RTLD_NOW) call. The problem is related to a SUN linker bug and was fixed in the patch 109147-40.

Solaris Physical Memory

在机场। 这次出门要和solaris打交道,准备一下,看到这张图,顺手就贴了上来।

现在休息室,惊闻广播里找"Fan Jian Nan"। 服务员念的时候似乎有些犹豫,要不就是生疏,呵呵,效果更是搞笑了। 同情一下这位兄弟,不知道现在哪个角落喝可乐吧?:)

BetterDBA.com

I applied this with service of google App with $10.

Now I can provide email address as yourname@betterdba.com, actually, it's gmail but something special.

www.betterdba.com is under building and due to ghs.google.com is prohibited in China now we cannot connect to it directly. I'll move it to somewhere else later when finishing things here.

If you want a account, send a mail to wyhang@betterdba.com and tell me who you are and what user name you want to use.

http://mail.google.com/a/betterdba.com

4/24/2007

ebooks download

ftp://202.96.64.144/pub/

strongly recommend!

最后的疯狂

六个周末没休息,那么算起来连续35天左右没休息了. 最近两个星期又多熬了几个夜班,身体上真是一塌糊涂. 最近常常觉得心跳不正常,觉得有时候好像喘不过气来.心里都有些害怕自己会过劳死了.

上上周就跟老板说了希望把wentao弄回来,我这里已经顶不住了,希望wentao五一期间帮忙照看一下pmis那边的事情吧. 上周五去怀柔,本来说两天的结果变成了4天,我很快就觉得自己已经不行了,终于不得不把yitao从济南请来替一下.

状态真差.

现在算是在调休. 调前拼命找人,弄得好像在偷懒一样. 真不爽.

前几天和老板谈过了,如预期一样loa是没有可能的. 想想就这么会离开这个拼命工作了三年的地方,心里还是感觉很不爽,有一种压力石头一样压在心头. 不是对future的担心,而是有些觉得自己好像只是经过了一场单相思而已. 干活拼命那是本分,和其他任何事情是没有关系的.

我们就只是小小的螺丝钉.

好好工作,在这里一天,就好好干. 但求无愧于心. 全哥说的对,做好自己的事情就好了,不要对别人对你怎样做太大的期望. 就是这样子吧.