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Re: [CentOS] Oracle RAC 9i on RH AS 4 Update 5 (SOLVED)
by Wahyu Darmawan 20 Nov '09

20 Nov '09

Hi all, Many thanks for responses. But, I've solved the problem. I added on .bash_profile in oracle home dir, one line like this : LD_ASSUME_KERNEL=2.4.19; export LD_ASSUME_KERNEL Thank you, On Fri, Nov 20, 2009 at 5:33 PM, Hakan Koseoglu <hakan(a)koseoglu.org> wrote: > On Thu, Nov 19, 2009 at 4:11 PM, Wahyu Darmawan > <wahyu.darmawan(a)gmail.com> wrote: >> Hi all, >> I've got problem when run command "gsdctl start", and appeared error like this : >> /home/oracle/jre/1.1.8/bin/../lib/i686/native_threads/libzip.so: >> symbol errno, version GLIBC_2.0 not defined in file libc.so.6 with >> link time reference (libzip.so) >> Unable to initialize threads: cannot find class java/lang/Thread >> Could not create Java VM > Make sure you have all of this covered: > > http://www.puschitz.com/InstallingOracle9i.shtml#RunningOracleInstallationO… > > Ah, those were the days, getting Oracle 9i running on anything was a > bit of a challenge and this gentleman's web pages were always > useful... > > These days Oracle has good upstream documentation and almost > everything works with 10g and 11g... > -- > Hakan (m1fcj) - http://www.hititgunesi.org > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos >

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Oracle RAC 9i on RH AS 4 Update 5
by Wahyu Darmawan 20 Nov '09

20 Nov '09

Hi all, I've got problem when run command "gsdctl start", and appeared error like this : /home/oracle/jre/1.1.8/bin/../lib/i686/native_threads/libzip.so: symbol errno, version GLIBC_2.0 not defined in file libc.so.6 with link time reference (libzip.so) Unable to initialize threads: cannot find class java/lang/Thread Could not create Java VM Does anyone can help me? Appreciate with your response. Thank you,

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Why swap if there's still physical memory available
by yanagik317 19 Nov '09

19 Nov '09

Dear CentOS people, This is just a general question related to memory management, and there may have been a thread or two about it before, but I'd like to post anyway. A user was looking at top, whereby he found out that his two processes were 10.2g and 4836m in VIRT. They were 6.4g and 4.6g in RES respectively. 3445964k was free still. He was wondering why the system didn't use all of the physical memory available (16300960k total) before swapping out parts of the processes. Over time, the 10.2g process had about 8g of it in SWAP. The 4836m process only had about 100m in SWAP. Much of the physical space is now used. I guess the answer may not be that simple and I most likely haven't described everything that could have influenced the kernel's decision-making, but how does Linux decide how much of a process to be swapped out? I guess I could read the documentations on the Linux kernel, but does anyone have more general answers ready to be dispensed? I haven't done anything with sysctl, if that comes into play at all. Thank you, --Koji

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serial console config package?
by Jiann-Ming Su 19 Nov '09

19 Nov '09

I've been installing CentOS via PXE and using a serial console interface. The installation works great. I notice that during the install process, the following line gets added automatically to /etc/inittab: co:2345:respawn:/sbin/agetty ttyS0 9600 vt100-nav Which package does this? Is it kudzu? Thanks for any insights. -- Jiann-Ming Su "I have to decide between two equally frightening options. If I wanted to do that, I'd vote." --Duckman "The system's broke, Hank. The election baby has peed in the bath water. You got to throw 'em both out." --Dale Gribble "Those who vote decide nothing. Those who count the votes decide everything.” --Joseph Stalin

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stupid Centos-DS questions
by Alan McKay 19 Nov '09

19 Nov '09

OK, I'm mostly through everything up to and including Chapter 5 in http://www.redhat.com/docs/manuals/dir-server/8.1/install/Installation_Guid… And looking through the ToC for the rest, I do not see that my questions will be answered by this doc. So please feel free to point me to other docs. This manual seems to assuming I already know what it is I want to do, and what "Directory Services" are all about. Invalid assumption. For example, right now I am reading about how to set up different instances of this-or-that (Admin Server, Directory Server, yadda, yadda). What it does not tell me is why I would want to do that. It does not even tell me "what is an 'instance'" . I've never done any sort of DS, so this is all new stuff to me. Suggested reading is very welcomed. What is even more welcome is pointers to case studies or template examples. We are a very small company with only about 30 people right now. Though we do have a convoluted network with 3 distinct network areas separated by VPNs. I'm new here (and put in charge), and we are not even running DNS yet (eeep! for REALZ!!!). To me it makes sense to have 3 different DNS subdomains because of some quirks they have in their product architecture here. I'm thinking "office.example.dom", "production.example.com" and "rc.example.com". And from the bit I've read so far on DS, it seems to be recommended to have your DS mirror your DNS. So we are small enough where I do not think we need more than 1 server to run it all. And I can make all the machines talk to that server through the firewalls separating the 3 zones. That is not an issue at all. I'm not sure how this affects my DS. Would these be "instances"? So many questions ... please suggest reading material. thanks, -Alan -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food"

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New install RAID 1+0
by Craig White 19 Nov '09

19 Nov '09

I have a new server to setup. 4 hard drives and I had intended it to be hardware raid but that's a long story. Does it make sense to set up the first two hard drives with RAID-0 partitions and then get through the install and then go back later and then create identically sized RAID-0 partitions on the other two drives and finally create the RAID-1 mirror from the first to the second? Craig -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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ATA error: hard drive going bad?
by Gilbert Sebenste 19 Nov '09

19 Nov '09

Hello all, Probably a stupid question, but I'll ask the pros just to be sure. Time for a new hard drive? ---- Nov 16 17:35:42 weather3 kernel: ata1.01: exception Emask 0x40 SAct 0x0 SErr 0x80800 action 0x6 Nov 16 17:35:42 weather3 kernel: ata1: SError: { HostInt 10B8B } Nov 16 17:35:42 weather3 kernel: ata1.01: cmd a0/00:00:00:00:00/00:00:00:00:00/b0 tag 0 Nov 16 17:35:42 weather3 kernel: cdb 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Nov 16 17:35:42 weather3 kernel: res 51/20:03:00:00:00/00:00:00:00:00/b0 Emask 0x40 (internal error) Nov 16 17:35:42 weather3 kernel: ata1.01: status: { DRDY ERR } Nov 16 17:35:42 weather3 kernel: ata1: hard resetting link Nov 16 17:35:43 weather3 kernel: ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Nov 16 17:35:43 weather3 kernel: ata1.01: configured for UDMA/100 Nov 16 17:35:43 weather3 kernel: ata1: EH complete --- ******************************************************************************* Gilbert Sebenste ******** (My opinions only!) ****** *******************************************************************************

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What is the best way to setup Auto Failover Redundancy for Vicidial with Asterisk on CentOS or other Linux OS?
by Sam Acosta 19 Nov '09

19 Nov '09

There seems obviously quite a lot of possible setup for server clustering and redudancy, but let's say considering about three mid-range servers only with FoneBridge --- What could be the best way to setup Auto Failover Redundancy for Vicidial with Asterisk on CentOS or other Linux OS? Sam -------------------------------------------- www.SamAcosta.Net

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my local mirror stopped working
by Alan McKay 19 Nov '09

19 Nov '09

Hey folks, I've had a local mirror set up for some time now and it has always worked, but suddently stopped. I don't think the fact that it stopped work has anything to do with when I blew away that machine and changed it from Centos 5.3 to a Fedora Core 11 box. But I'm not sure how that could make any difference since it is just serving that stuff over the web. It still works great for Kickstart installs. I still have a nightly cron job to update from my closest mirror thusly : rsync -avSHP --delete --exclude "local*" --exclude "isos" rsync://mirror.csclub.uwaterloo.ca/centos/5.3/ /var/www/html/ks/centos/5.3/ Here is the error I get when trying to run yum now. Note that I check for the file it is complaining about and it exists but is .gz format and not .bz2. I guess I could gunzip then bzip to fix the problem? But I'd really like to understand why this started. http://yum/ks/centos/5/updates/x86_64/repodata/filelists.sqlite.bz2: [Errno 14] HTTP Error 404: Not Found Trying other mirror. Error: failure: repodata/filelists.sqlite.bz2 from updates: [Errno 256] No more mirrors to try. As I've reported before to the list, here is how I've set it up : * On my PC I've created /var/www/html/ks for doing kickstart installs, and it shows up at http://192.168.0.222/ks/ * the Centos 5.3 DVDs got downloaded - both 32 bit and 64 bit mkdir /mnt/C5.3_{32,64} chmod 0777 /mnt/C5.3_{32,64} mount -ro loop /home/amckay/Desktop/CentOS-5.3-i386-bin-DVD.iso /mnt/C5.3_32 mount -ro loop /home/amckay/Desktop/CentOS-5.3-x86_64-bin-DVD.iso /mnt/C5.3_64 mkdir -p /var/www/html/ks/centos/5.3/{os,updates}/{i386,x86_64} pushd /var/www/html/ks/centos/ ln -s 5.3 5 popd rsync -avHPS /mnt/C5.3_64/ /var/www/html/ks/centos/5.3/os/x86_64/ rsync -avHPS /mnt/C5.3_32/ /var/www/html/ks/centos/5.3/os/i386/ rsync -avSHP --delete --exclude "local*" --exclude "isos" rsync://mirror.csclub.uwaterloo.ca/centos/5.3/ /var/www/html/ks/centos/5.3/ chown -R apache:apache /var/www/html/ks/ And when I do a Kickstart install, it works just fine. AFter the install in the %post I change the Centos-Base.repo to point to my local repo thus : [base] name=CentOS-$releasever - Base #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os baseurl=http://yum/ks/centos/$releasever/os/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5 #released updates [updates] name=CentOS-$releasever - Updates #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates baseurl=http://yum/ks/centos/$releasever/updates/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5 Note that the name "yum" does properly resolve to my box. -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food"

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php config security concern for c5
by Joe Pruett 18 Nov '09

18 Nov '09

a recent post on bugtraq hilighted an issue with how upstream has configured apache to invoke php, namely using addhandler, which has the behavior of matching the extension anywhere in the file. this means that foo.php.jpg will be run as php. where this becomes an issue is web apps that allow uploads into the webspace for images, pdfs, etc. if the app assumes that anything.jpg is safe, this addhandler feature will surprise it. a fix is to replace two lines in /etc/httpd/conf.d/php.conf: AddHandler php5-script .php AddType text/html .php with: <FilesMatch \.php$> SetHandler php5-script ForceType text/html </FilesMatch> i have reported this upstream. hopefully they will see it as a problem and address it.

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