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perl-DBD-MySQL, libmysqlclient.16 and 5.7 (FInal)
by Ilya Kazakevich 13 Mar '12

13 Mar '12

Hello, I have server CentOS 5.7. It has mysql-community installed. I need to run perl-based tool (mysqlreport) and it requires perl-DBD-MySQL (not a surprise) When I am trying to install perl-DBD-MySQL via yum -- it says it requires libmysqlclient.*15 *and it conflicts with libmysqlclient.*16 *which was installed as a part of mysql-community. I tried to make symbolic link and force DBD to work with 16. But it failed with error. Looks like libmysqlclient provides it version or has different API (which is strange for me) The only one idea I have is to fetch libmysqlclient.15 from some packet and put it to my LD folder directly. But what has happened? Where is DBD for new version (16)? What is the best ("official") way to solve it? Thanks.

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6.2 kernel issues - followup
by m.roth＠5-cent.us 13 Mar '12

13 Mar '12

I wrote: > A couple weeks ago, after we moved a user's home directory from a 5.7 box to 6.2, he came > to complain about slowness. > Unpack file from NFS-mounted directory to local disk, like /tmp, > everything's normal. cd to the NFS-mounted directory, and unpack it there, and it was > six to seven times slower. We repeated this a number of times, on a number of machines. At > first, we thought it was an NFSv4 issue, and I filed a bug with RedHat about it. > Then we did more testing; it seems to occur with 6.2; it's going to happen if that's got ext4. > However, my manager saw something else, just today: he noticed one of our nightly backup > servers was taking much, much longer to complete the rsync and delete. Then he saw that I'd > updated that backup server to 6.2, and after the backups started running again (probably > missing modules), they were taking a lot longer... about 6-7 times longer. As in going from > between .5 and 1 hr, to 5.5 to 9 hours. Well, I was googling on performance tuning NFS, and found <http://www.softpanorama.org/Net/Application_layer/NFS/nfs_performance_tunin…>, where the author notes "One issue with migrating to NFSv4 is that all of the filesystems you export have to be located under a single top-level exported directory. This means you have to change your /etc/exports file and also use Linux bind mounts to mount the filesystems you wish to export under your single top-level NFSv4 exported directory." I makes a *real* difference. I tested it, on one 6.2 server, mounting a foo directory I created in the usual 3 levels deep, and another, /tmp/foo1, and doing my same unpack ran at 2/3rds the time. Not good - 6.5 min vs. 1+min for 5.7 & NFS3, but better. This alone suggests we need to go back to NFS 3 - it would be a Big Deal to relocate everyone's home directory. Doing a yum list \*nfs\* shows something called sblim-cmpi-nfsv3.x86_64. >From the info, I can't tell if I can just drop it in and run that, or if I'd have to yum remove nfs-utils & nfs-utils-lib. Anyone have a clue? mark

1 0

Cron marks mailto value as UNSAFE
by James B. Byrne 13 Mar '12

13 Mar '12

CentOS-6.2 We moved a cron job from a CentOS-5.7 host to a CentOS-6.2 host. The MAILTO variable is set to support(a)harte-lyne.ca in both instances. On the CentOS-6 host instead of receiving the mail with the output we see this in /var/log/cron instead: Mar 12 14:49:01 inet09 CROND[6639]: (cron theheart) UNSAFE (support(a)harte-lyne.ca ) The CentOS-5 host uses Sendmail as the MTA, the CentOS-6 uses Postfix. We can send mail to support(a)harte-lyne.ca from the command line on both hosts. The permissions of the files in /var/spool/cron are: # ll /var/spool/cron total 12 -rw-------. 1 root root 34 Mar 9 16:41 root -rw-------. 1 root root 4245 Mar 12 14:53 theheart Selinux is set to Permissive (for the time being): # sestatus SELinux status: enabled SELinuxfs mount: /selinux Current mode: permissive Mode from config file: permissive Policy version: 24 Policy from config file: targeted What is causing cron to complain. What is unsafe and how do I rectify this? -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

4 4

yum list installed - 3rd column
by Tilman Schmidt 13 Mar '12

13 Mar '12

On most of the CentOS 5 machines I manage, if I run "yum list installed" the third column just says "installed" for all packages. But on one machine, some lines show instead a repo name preceded by an @ sign. Apparently the repo from which the package was installed, which would be immensely useful. Two questions: 1. Can I have that feature on the other CentOS 5 machines too? The machine in question has yum version 3.2.27-12.el5_from_el6 while all others have version 3.2.22-39.el5.centos. Where did that "el5_from_el6" version come from? The "yum list" entry for yum itself does unfortunately not show a repo name. 2. Can anything be done about the lines still saying only "installed"? How do find out where those packages came from? aTdHvAaNnKcSe Tilman -- Tilman Schmidt Phoenix Software GmbH Bonn, Germany

2 1

Filelocking and rquotad
by Basil Kurian 13 Mar '12

13 Mar '12

Hi, Can someone give me some pointer or links to understand how Filelocking and rquotad works on NFS ? I searched a lot on google , didn't get any good articles on that. -- Regards Basil

1 0

CentOS-announce Digest, Vol 85, Issue 5
by centos-announce-request＠centos.org 13 Mar '12

13 Mar '12

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CEBA-2012:0377 CentOS 6 kdelibs FASTTRACK Update (Johnny Hughes) 2. CEBA-2012:0379 CentOS 5 ypserv Update (Johnny Hughes) 3. CEBA-2012:0380 CentOS 6 xorg-x11-drv-qxl Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Mon, 12 Mar 2012 20:01:53 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:0377 CentOS 6 kdelibs FASTTRACK Update To: centos-announce(a)centos.org Message-ID: <20120312200153.GA11127(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:0377 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-0377.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: b3f464c5ebfb8cbd1e1cd875b183ba0f37ae52fde036b685caab589a993e0645 kdelibs-4.3.4-14.el6.i686.rpm 2d9d4fc8c727faf3a9ecc9dcf0ac0bb32c5cfa156664798f72a34fcae0208d6d kdelibs-apidocs-4.3.4-14.el6.noarch.rpm 6e30e28688abf9fd2e918fbefd5045e768a78da2f22f9a2b9d58793d933f4e57 kdelibs-common-4.3.4-14.el6.i686.rpm 2c956b98fa0ed80bbb8ad9b2977c95e03ff60365e9803898585bf5b6548373a6 kdelibs-devel-4.3.4-14.el6.i686.rpm x86_64: b3f464c5ebfb8cbd1e1cd875b183ba0f37ae52fde036b685caab589a993e0645 kdelibs-4.3.4-14.el6.i686.rpm 89aed1e7345532cf41e31a1656d305c4002ece9d426dbf8cd44703eb6224c59c kdelibs-4.3.4-14.el6.x86_64.rpm 962659220a03d55eed033763b715e9cd8c0b3e0779a046fb2882c5fa2aca91e9 kdelibs-apidocs-4.3.4-14.el6.noarch.rpm 66259cfeb65433283ff2f173eec6bcc431e1b93601f3f8c90096417b0da8d5c7 kdelibs-common-4.3.4-14.el6.x86_64.rpm 2c956b98fa0ed80bbb8ad9b2977c95e03ff60365e9803898585bf5b6548373a6 kdelibs-devel-4.3.4-14.el6.i686.rpm 5d4e33686c94aed9832283a820e6a20a5ef5c5d6080df4da6ad89051f2b8a57f kdelibs-devel-4.3.4-14.el6.x86_64.rpm Source: 115803db83cd7b73e77789584ebd6604cef7ecb30e75962227728c965b00c5b9 kdelibs-4.3.4-14.el6.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Tue, 13 Mar 2012 10:15:26 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:0379 CentOS 5 ypserv Update To: centos-announce(a)centos.org Message-ID: <20120313101526.GA17048(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:0379 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-0379.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 27a4ef8962838b715028e2b43ae22dc64eb19d38e3d704b91dd27974c4780d2d ypserv-2.19-9.el5_8.1.i386.rpm x86_64: f72cd546cecd3c90f2d4254432d1dccc8e323497d0934f8b94a5683b29f8f957 ypserv-2.19-9.el5_8.1.x86_64.rpm Source: d93b0d5136d7ffda273949b148ecbbc24acba601d176c922e8aeb0ea212074fa ypserv-2.19-9.el5_8.1.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 3 Date: Tue, 13 Mar 2012 12:31:49 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:0380 CentOS 6 xorg-x11-drv-qxl Update To: centos-announce(a)centos.org Message-ID: <20120313123149.GA25122(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:0380 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-0380.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: af412018f370898ae192ee60b680886d22c30fdf116068fe220df27a85b87472 xorg-x11-drv-qxl-0.0.14-13.el6_2.i686.rpm x86_64: e0eba5bf8f58ccc63e7f12cb921125b0bbf8267e4d2c970ddd2bedf07e992ca2 xorg-x11-drv-qxl-0.0.14-13.el6_2.x86_64.rpm Source: 47f72a28713a98fd71d0ab6f3c94fc1fa4c3e8372574d6fcfd2460171b31d74b xorg-x11-drv-qxl-0.0.14-13.el6_2.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 85, Issue 5 **********************************************

1 0

Upgrade to 5.8 broke sshd on IPv4
by Mike McCarthy 13 Mar '12

13 Mar '12

I have a virtual machine on linode.com that runs dual stack IPv4 and IPv6. On Sunday I upgraded to Centos 5.8 and now I cannot connect with ssh on IPv4. I get a 'connection refused' because there is no listener on the ssh port for IPv4. It appears to work just fine for IPv6, but I cannot access remotely when I am on an IPv4 only network. It appears that only sshd is affected. All other services seem to work on both v4 and v6. I have it listening on a non-standard port other than 22. I am going to try and have it listen on the standard port to see if that works. Anyone else seen this? Any recommendations on tracking this down? Thanks, Mike

1 0

6.2 kernel issues
by m.roth＠5-cent.us 13 Mar '12

13 Mar '12

A couple weeks ago, after we moved a user's home directory from a 5.7 box to 6.2, he came to complain about slowness. Unpack file from NFS-mounted directory to local disk, like /tmp, everything's normal. cd to the NFS-mounted directory, and unpack it there, and it was six to seven times slower. We repeated this a number of times, on a number of machines. At first, we thought it was an NFSv4 issue, and I filed a bug with RedHat about it. Then we did more testing; it seems to occur with 6.2; it's going to happen if that's got ext4. However, my manager saw something else, just today: he noticed one of our nightly backup servers was taking much, much longer to complete the rsync and delete. Then he saw that I'd updated that backup server to 6.2, and after the backups started running again (probably missing modules), they were taking a lot longer... about 6-7 times longer. As in going from between .5 and 1 hr, to 5.5 to 9 hours. Anyone else seeing this behavior? mark

1 0

KVM CentOS i386
by Anton Zaytsev 12 Mar '12

12 Mar '12

Hi, guys. I did search over internet but found nothing useful. Is there a way to install KVM on CentOS i386? Thanks, Anton.

3 4

hfs with extended attribute support
by Wessel van der Aart 12 Mar '12

12 Mar '12

Hi all, I´ve got a HFS+(not journaled) volume connected to my centos6.2 test server, i installed the kmod-hfs(plus) packages and read/write works all fine. but since i´m going to use this for serving mac home folders via netatalk i would like to mount it with support for Extended Attributes and acl´s. so i add user_xattr and acl to my fstab options but then it fails to mount. checking the error in dmesg just gives me ¨hfs: unable to parse mount options¨. does anyone know what´s going on and what i should do to make this work? regards, Wessel

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