Discuss November 2009

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311 participants
290 discussions

Problem with Samba on CentOS 5.3
by Kaplan, Andrew H. 20 Nov '09

20 Nov '09

Hi there -- I am having an issue with the Samba package, release 3.033375, that came bundled with the CentOS 5.3 distribution. It seems that even though I created the smbpasswd file, located at the /etc/samba directory, I am unable to modify the password of the users listed in it. I can run the /usr/bin/smbpasswd -a <username> command as root, and even though there are no errors, a subsequent check of the smbpasswd file indicates the username in question is still listed with the series of X's and NO PASSWORD indicator. I have confirmed through the find command the only instances of smbpasswd are those at the /etc/samba and /usr/bin locations. Has anyone seen this issue, and aside from installing samba from source, have a solution to this problem? Thanks. The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.

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CentOS-DS Configuration/Setup Issue
by gene.poole＠macys.com 20 Nov '09

20 Nov '09

All, I'm running CentOS 5.4 and I've installed the CentOS Directory Server by running yum -y install centos-ds* without any errors. But as soon as I attempt to run the setup I get the following: [root@jpdsys3 ~]# /usr/sbin/setup-ds-admin.pl Can't locate Setup.pm in @INC (@INC contains: /usr/lib64/dirsrv/perl /usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/5.8.8 .) at /usr/sbin/setup-ds-admin.pl line 24. BEGIN failed--compilation aborted at /usr/sbin/setup-ds-admin.pl line 24. How can I find out what's missing? Thanks, Gene Poole

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High load averages with latest kernel and USB drives?
by Benjamin Smith 20 Nov '09

20 Nov '09

I'm having a server report a high load average when backing up Postgres database files to an external USB drive. This is driving my loadbalancers all out of kilter and causing a large volume of network monitor alerts. I have a 1TB USB drive plugged into a USB2 port that I use to back up the production drives (which are SCSI). It's working fine, but while doing backups (hourly) the load average on the server shoots up from the normal 0.5 - 1.5 or so up to a high between 10 and 30. Strangely, even though the "load is high" the server is completely responsive, even the USB drives being accessed are! Backup script is really simple, run via cron, pretty much just: #! /bin/sh hour=`date +%k`; pg_dump <options> mydatabase > /media/backups/mydatabase.$hour.pgsql; where /media/backups is the mount point for the USB drive. Using top to diagnose, nothing seems to be particularly high! IoWait seems reasonable (10-30%) and CPUs are 0.5%, Idle is 70-90%. Even accessing the USB partition while the load is "high" is responsive! I'm guessing that something changed in how load average is counted? Server Stats: Late model 8-way Xeon, SuperMicro brand. CentOS 4.x / 64 (all updates applied, booted after last kernel update) Kernel 2.6.9-89.0.16.ELsmp 4 GB ECC RAM 300 GB SCSI HDD. Standard Apache/PHP, Postgres 8.4. Any idea how to revert to the old load average tracking behavior short of using a stale and potentially insecure kernel? -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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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,

5 4

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

4 3

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"

4 6

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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Discuss November 2009