Re: [CentOS-virt] SOLVED! Xen HVM domU won't start since updates to 2.6.18-164.15.1 kernels
On 03/31/2010 11:50 PM, Aaron Clark wrote: I'm going to tinker with this for a bit to try and figure out what difference from the previous config is actually the cause of the issue. I just had the other, formerly working VM, bail with the same symptoms once I got this one work. The workaround is nice but I definitely want to isolate this bug now. I just wanted to follow up on this a bit. Once I got it going, the VM ran for over 10 days without issues. Tonight I started tinkering with the Xen config to try an isolate whether it was acpi or apic causing troubles the short answer is that neither is the problem. What is the problem then? It looks like a bug in virsh/libvirt; I'll need some help to debug it though. I'm using the following file for all of this: name = Belldandy uuid = b1f1d0a4-9687-947c-5eaf-b362d5d5a199 maxmem = 256 memory = 256 vcpus = 1 builder = hvm kernel = /usr/lib/xen/boot/hvmloader boot = c pae = 1 acpi = 1 apic = 1 on_poweroff = destroy on_reboot = restart on_crash = restart device_model = /usr/lib64/xen/bin/qemu-dm disk = [ phy:/dev/SystemsVG/Belldandy,hda,w ] vif = [ mac=00:16:3e:29:65:46,bridge=xenbr0,script=vif-bridge ] vnc = 1 1. xm create -f ./Belldandy.xen -- successfully starts as expected 2. Copy Belldandy.xen to /etc/xen/Belldandy, start with xm create Belldandy -- successfully starts as expected 3. Attempt to start with virsh start Belldandy -- fails horribly with the same 'no state' issue as before. So I can work around this for now by not using virsh to start them up but it's still quite annoying. I should note that I can remotely access that machine with VMM and it suffers the same issues but handles everything else just fine once I manually start the domU via xm as above. Aaron -- The goblins are in charge of maintenance? Why not just set it on fire now and call it a day? --Whip Tongue, Viashino Technician ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS] (no subject)
Benjamin Franz writes: James Bensley wrote: What is this supposed to be Mike? I can't get to the site, eventually it times out? It isn't from Mike. It is some spambot using his forged mail ID to post to the list. It is a common trick to by-pass member's only posting filters. It came from Google, unlike his usual emails. The account may have been compromised. --- This message and any attachments may contain Cypress (or its subsidiaries) confidential information. If it has been received in error, please advise the sender and immediately delete this message. --- ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] everything seems to hang, but system is idle?
Hi All, My one server recently started acting very weird. At fist I couldn't import any images with cobbler as rsync crashes the whole time. I was told to ask on the cobbler list (maybe it's not supported here?) but I left it at that (subscribed to far too many lists already). Yesteday I wanted to copy some stuff from a USB disk to the server (using rsync to update the files which have changed, or new files) but it seems like rsync hangs without any errors. Now, when I tried to update CentOS I get the same error in that yum hangs. At the same time I can open a new SSH session and do whatevery I like. But it seems that running a command which takes time to complete hangs. For example: Package Arch VersionRepository Size = Removing: iscsi-initiator-utils x86_64 6.2.0.871-0.12.el5_4.1 installed 1.9 M Removing for dependencies: gnome-applet-vm x86_64 0.1.2-1.el5installed 121 k libvirt x86_64 0.6.3-20.1.el5_4 installed 7.1 M libvirt-pythonx86_64 0.6.3-20.1.el5_4 installed 431 k python-virtinst noarch 0.400.3-5.el5 installed 1.4 M virt-manager x86_64 0.6.1-8.el5installed 4.9 M virt-viewer x86_64 0.0.2-3.el5installed 48 k xen x86_64 3.0.3-94.el5_4.3 installed 4.7 M Transaction Summary = Remove8 Package(s) Reinstall 0 Package(s) Downgrade 0 Package(s) Is this ok [y/N]: y Downloading Packages: Running rpm_check_debug Running Transaction Test [r...@intranet Torrents]# mount /dev/sdc1 /mnt/ Even running top does the same, yet I can't kill top with CTRL+C, or even killall -9 top from a new SSH session. [r...@intranet ~]# ps ax | grep top 20825 pts/6R+ 0:00 grep top [r...@intranet ~]# ps ax | grep rsync 6536 ?D 3:10 rsync -avz --progress /mnt/usb-backup/backups/current/home/www/linux/centos /home/www/linux/ 6537 ?Z 0:00 [rsync] defunct 8630 ?S 0:00 rsync -avz --progress --stats /mnt/usb-backup/backups/current/home/www/linux/ /home/www/linux/ 8631 ?Z 0:00 [rsync] defunct 20827 pts/6R+ 0:00 grep rsync [r...@intranet ~]# ps ax | grep yum 20390 pts/4S+ 0:02 /usr/bin/python /usr/bin/yum remove iscsi-initiator-utils 20829 pts/6R+ 0:00 grep yum [r...@intranet ~]# /var/log/messages doesn't show me any errors. Any suggestions on this? -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] everything seems to hang, but system is idle?
On Sun, 2010-04-11 at 12:58 +0200, Rudi Ahlers wrote: At the same time I can open a new SSH session and do whatevery I like. But it seems that running a command which takes time to complete hangs. --- Try killing off those rsyncs and try it again. You need to provide some other type of error messages. Use strace. tail /var/log/messages and paste it in your reply. Even if you don't see anything in it that does not mean someone else can't. You may need a reboot. John ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] everything seems to hang, but system is idle?
On Sun, Apr 11, 2010 at 2:04 PM, JohnS jse...@gmail.com wrote: On Sun, 2010-04-11 at 12:58 +0200, Rudi Ahlers wrote: At the same time I can open a new SSH session and do whatevery I like. But it seems that running a command which takes time to complete hangs. --- Try killing off those rsyncs and try it again. You need to provide some other type of error messages. Use strace. tail /var/log/messages and paste it in your reply. Even if you don't see anything in it that does not mean someone else can't. You may need a reboot. John ___ John, I already said I can't kill the process and tail -f /var/log/messages *really* doesn't show me anything. I am running tail -f /var/log/message in on SSH window, and at the same time killed re-ran yum remove iscsi-initiator-utils -y in another SSH window. /var/log/message has *nothing* to report. [r...@intranet ~]# tail -f /var/log/messages Apr 11 14:18:50 intranet nmbd[4310]: find_domain_master_name_query_fail: Apr 11 14:18:50 intranet nmbd[4310]: Unable to find the Domain Master Browser name SOFTDUX1b for the workgroup SOFTDUX. Apr 11 14:18:50 intranet nmbd[4310]: Unable to sync browse lists in this workgroup. Apr 11 14:18:50 intranet nmbd[4310]: [2010/04/11 14:18:50, 0] nmbd/nmbd_browsesync.c:find_domain_master_name_query_fail(351) Apr 11 14:18:50 intranet nmbd[4310]: find_domain_master_name_query_fail: Apr 11 14:18:50 intranet nmbd[4310]: Unable to find the Domain Master Browser name SOFTDUX1b for the workgroup SOFTDUX. Apr 11 14:18:50 intranet nmbd[4310]: Unable to sync browse lists in this workgroup. Apr 11 14:19:14 intranet snmpd[3912]: error scanning interface data (expected 10, got 0) Apr 11 14:20:44 intranet snmpd[3912]:last message repeated 6 times Apr 11 14:22:14 intranet snmpd[3912]:last message repeated 6 times Apr 11 14:23:44 intranet snmpd[3912]:last message repeated 6 times The ONLY fix is a reboot, but I don't want to reboot every few minutes (have done it already a few times today as the server is a dev server and everyone else working it (mainly web development) have to wait and this cuts in on production time. -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] everything seems to hang, but system is idle?
On Sun, Apr 11, 2010 at 2:25 PM, Rudi Ahlers rudiahl...@gmail.com wrote: On Sun, Apr 11, 2010 at 2:04 PM, JohnS jse...@gmail.com wrote: On Sun, 2010-04-11 at 12:58 +0200, Rudi Ahlers wrote: At the same time I can open a new SSH session and do whatevery I like. But it seems that running a command which takes time to complete hangs. --- Try killing off those rsyncs and try it again. You need to provide some other type of error messages. Use strace. tail /var/log/messages and paste it in your reply. Even if you don't see anything in it that does not mean someone else can't. You may need a reboot. John ___ John, I already said I can't kill the process and tail -f /var/log/messages *really* doesn't show me anything. I am running tail -f /var/log/message in on SSH window, and at the same time killed re-ran yum remove iscsi-initiator-utils -y in another SSH window. /var/log/message has *nothing* to report. [r...@intranet ~]# tail -f /var/log/messages Apr 11 14:18:50 intranet nmbd[4310]: find_domain_master_name_query_fail: Apr 11 14:18:50 intranet nmbd[4310]: Unable to find the Domain Master Browser name SOFTDUX1b for the workgroup SOFTDUX. Apr 11 14:18:50 intranet nmbd[4310]: Unable to sync browse lists in this workgroup. Apr 11 14:18:50 intranet nmbd[4310]: [2010/04/11 14:18:50, 0] nmbd/nmbd_browsesync.c:find_domain_master_name_query_fail(351) Apr 11 14:18:50 intranet nmbd[4310]: find_domain_master_name_query_fail: Apr 11 14:18:50 intranet nmbd[4310]: Unable to find the Domain Master Browser name SOFTDUX1b for the workgroup SOFTDUX. Apr 11 14:18:50 intranet nmbd[4310]: Unable to sync browse lists in this workgroup. Apr 11 14:19:14 intranet snmpd[3912]: error scanning interface data (expected 10, got 0) Apr 11 14:20:44 intranet snmpd[3912]:last message repeated 6 times Apr 11 14:22:14 intranet snmpd[3912]:last message repeated 6 times Apr 11 14:23:44 intranet snmpd[3912]:last message repeated 6 times The ONLY fix is a reboot, but I don't want to reboot every few minutes (have done it already a few times today as the server is a dev server and everyone else working it (mainly web development) have to wait and this cuts in on production time. I can't install strace either: [r...@intranet ~]# yum install strace -y Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * local-addons: 192.168.1.250 * local-base: 192.168.1.250 * local-extras: 192.168.1.250 * local-updates: 192.168.1.250 * rpmforge: apt.sw.be Setting up Install Process Resolving Dependencies -- Running transaction check --- Package strace.x86_64 0:4.5.18-5.el5_4.4 set to be updated -- Finished Dependency Resolution Dependencies Resolved = PackageArch Version Repository Size = Installing: strace x86_64 4.5.18-5.el5_4.4 local-updates 177 k Transaction Summary = Install 1 Package(s) Upgrade 0 Package(s) Total size: 177 k Downloading Packages: Running rpm_check_debug Running Transaction Test And that's where it sits and does nothing. The system's load isn't very high: [r...@intranet ~]# uptime 14:32:25 up 1 day, 2:05, 6 users, load average: 2.02, 2.02, 2.01 and again /var/log/messages reports nothing related to this problem: [r...@intranet ~]# tail -f /var/log/messages Apr 11 14:19:14 intranet snmpd[3912]: error scanning interface data (expected 10, got 0) Apr 11 14:20:44 intranet snmpd[3912]:last message repeated 6 times Apr 11 14:22:14 intranet snmpd[3912]:last message repeated 6 times Apr 11 14:23:44 intranet snmpd[3912]:last message repeated 6 times Apr 11 14:25:14 intranet snmpd[3912]:last message repeated 6 times Apr 11 14:26:44 intranet snmpd[3912]:last message repeated 6 times Apr 11 14:28:14 intranet snmpd[3912]:last message repeated 6 times Apr 11 14:29:44 intranet snmpd[3912]:last message repeated 6 times Apr 11 14:31:14 intranet snmpd[3912]:last message repeated 6 times Apr 11 14:32:44 intranet snmpd[3912]:last message repeated 6 times Apr 11 14:33:23 intranet snmpd[3912]:last message repeated 3 times Apr 11 14:33:23 intranet snmpd[3912]: Received TERM or STOP signal... shutting down... I stopped snmpd since it's not being used. After that no other errors which tells me what causes this came up. -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog:
Re: [CentOS] everything seems to hang, but system is idle?
Check dmesg. The kernel may be reporting disk or filesystem IO problems that are not going to syslog. -geoff - Geoff Galitz Blankenheim NRW, Germany http://www.galitz.org/ http://german-way.com/blog/ -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Rudi Ahlers Sent: Sonntag, 11. April 2010 14:49 To: CentOS mailing list Subject: Re: [CentOS] everything seems to hang, but system is idle? On Sun, Apr 11, 2010 at 2:25 PM, Rudi Ahlers rudiahl...@gmail.com wrote: On Sun, Apr 11, 2010 at 2:04 PM, JohnS jse...@gmail.com wrote: On Sun, 2010-04-11 at 12:58 +0200, Rudi Ahlers wrote: At the same time I can open a new SSH session and do whatevery I like. But it seems that running a command which takes time to complete hangs. --- Try killing off those rsyncs and try it again. You need to provide some other type of error messages. Use strace. tail /var/log/messages and paste it in your reply. Even if you don't see anything in it that does not mean someone else can't. You may need a reboot. ... ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] everything seems to hang, but system is idle?
On Sun, Apr 11, 2010 at 3:00 PM, Geoff Galitz ge...@galitz.org wrote: Check dmesg. The kernel may be reporting disk or filesystem IO problems that are not going to syslog. -geoff - Thanx Geoff, Already checked that, without any decent lead either: [r...@intranet ~]# tail -f /var/log/dmesg md: ... autorun DONE. device-mapper: multipath: version 1.0.5 loaded EXT3 FS on dm-0, internal journal kjournald starting. Commit interval 5 seconds EXT3 FS on dm-1, internal journal EXT3-fs: mounted filesystem with ordered data mode. kjournald starting. Commit interval 5 seconds EXT3 FS on md0, internal journal EXT3-fs: mounted filesystem with ordered data mode. Adding 8388600k swap on /dev/nas/swap. Priority:-1 extents:1 across:8388600k ip_tables: (C) 2000-2006 Netfilter Core Team Netfilter messages via NETLINK v0.30. ip_conntrack version 2.4 (8192 buckets, 65536 max) - 304 bytes per conntrack device vif0.0 entered promiscuous mode xenbr0: topology change detected, propagating xenbr0: port 1(vif0.0) entering forwarding state r8169: peth0: link up device peth0 entered promiscuous mode xenbr0: topology change detected, propagating xenbr0: port 2(peth0) entering forwarding state virbr0: no IPv6 routers present r8169: eth1: link up eth0: no IPv6 routers present eth1: no IPv6 routers present fuse init (API version 7.10) md: syncing RAID array md0 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 20 KB/sec) for reconstruction. md: using 128k window, over a total of 104320 blocks. md: syncing RAID array md2 md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc. md: using maximum available idle IO bandwidth (but not more than 20 KB/sec) for reconstruction. md: using 128k window, over a total of 244195904 blocks. md: md2: sync done. RAID1 conf printout: --- wd:1 rd:2 disk 1, wo:0, o:1, dev:sda1 md: md0: sync done. RAID1 conf printout: --- wd:2 rd:2 disk 0, wo:0, o:1, dev:hda1 disk 1, wo:0, o:1, dev:hdb1 usb 1-1: new high speed USB device using ehci_hcd and address 3 usb 1-1: configuration #1 chosen from 1 choice scsi3 : SCSI emulation for USB Mass Storage devices usb-storage: device found at 3 usb-storage: waiting for device to settle before scanning Vendor: Kingston Model: DT Mini Slim Rev: 1.00 Type: Direct-Access ANSI SCSI revision: 02 SCSI device sdc: 31506432 512-byte hdwr sectors (16131 MB) sdc: Write Protect is off sdc: Mode Sense: 23 00 00 00 sdc: assuming drive cache: write through SCSI device sdc: 31506432 512-byte hdwr sectors (16131 MB) sdc: Write Protect is off sdc: Mode Sense: 23 00 00 00 sdc: assuming drive cache: write through sdc: sdc1 sd 3:0:0:0: Attached scsi removable disk sdc sd 3:0:0:0: Attached scsi generic sg2 type 0 usb-storage: device scan complete SCSI device sdc: 31506432 512-byte hdwr sectors (16131 MB) sdc: Write Protect is off sdc: Mode Sense: 23 00 00 00 sdc: assuming drive cache: write through sdc: SCSI device sdc: 31506432 512-byte hdwr sectors (16131 MB) sdc: Write Protect is off sdc: Mode Sense: 23 00 00 00 sdc: assuming drive cache: write through sdc: /dev/sdc is a faulty USB memory stick,which I just put in before posting this, hence the errors. But this has happened before I put it in even. -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] everything seems to hang, but system is idle?
On Sun, Apr 11, 2010 at 6:58 AM, Rudi Ahlers rudiahl...@gmail.com wrote: [snip] At the same time I can open a new SSH session and do whatevery I like. But it seems that running a command which takes time to complete hangs. Is the server mounting any remote filesystems? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] everything seems to hang, but system is idle?
Thanx Geoff, Already checked that, without any decent lead either: Have you tried iostat, vmstat or sar to see if there is unusual activity? Were there any changes to the kernel lately (such as an update or a new module)? Or perhaps an NFS/CIFS mount gone wonky causing blocking? -geoff - Geoff Galitz Blankenheim NRW, Germany http://www.galitz.org/ http://german-way.com/blog/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] everything seems to hang, but system is idle?
On Sun, Apr 11, 2010 at 3:33 PM, Kwan Lowe kwan.l...@gmail.com wrote: On Sun, Apr 11, 2010 at 6:58 AM, Rudi Ahlers rudiahl...@gmail.com wrote: [snip] At the same time I can open a new SSH session and do whatevery I like. But it seems that running a command which takes time to complete hangs. Is the server mounting any remote filesystems? Nope, but I did notice that isci was giving errors, probably from an earlier (probably about 2 months ago) iscsi test, but the iscsi settings were removed, and I just rebooted in order to uninstall isci - which was succesful this time. -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] everything seems to hang, but system is idle?
On Sun, Apr 11, 2010 at 3:32 PM, Geoff Galitz ge...@galitz.org wrote: Thanx Geoff, Already checked that, without any decent lead either: Have you tried iostat, vmstat or sar to see if there is unusual activity? Were there any changes to the kernel lately (such as an update or a new module)? Or perhaps an NFS/CIFS mount gone wonky causing blocking? -geoff - Geoff Galitz Blankenheim NRW, Germany http://www.galitz.org/ http://german-way.com/blog/ ___ Yes, I think it could be a problematic iscsi config. Now that I think of it, the server wasn't rebooted in about 2 or 3 months and I did some iscsi testing a while ago, but with a recent power outage it could have enabled / a faulty configuration, I just rebooted the server again, managed to the remove iscsi this time, and will see if this solves the problem. -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] ulimit [SOLVED]
I know it works because I just tested it and it survived the server's reboot. I ran ulimit -a and the new value was there. ...from a login shell. If you don't have a login shell /etc/profile isn't read on bash startup. In my case, I am doing the change because of Samba. When you run tesparm, the lastest versions of Samba give the following warning: rlimit_max: rlimit_max (1024) below minimum Windows limit (16384) When I add the line ulimit -n 1024 to /etc/profile, the warning disappears, even after a reboot. So, this certainly works for processes running as root. But you are right in that it will probably depend on the particular user requirement. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] ulimit [SOLVED]
I know it works because I just tested it and it survived the server's reboot. I ran ulimit -a and the new value was there. ...from a login shell. If you don't have a login shell /etc/profile isn't read on bash startup. In my case, I am doing the change because of Samba. When you run tesparm, the lastest versions of Samba give the following warning: rlimit_max: rlimit_max (1024) below minimum Windows limit (16384) When I add the line ulimit -n 1024 to /etc/profile, the warning disappears, even after a reboot. So, this certainly works for processes running as root. But you are right in that it will probably depend on the particular user requirement. I also had to increase the default ulimit to 8192 on my ldap servers otherwise people couldn't login. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] ulimit [SOLVED]
On Sun, Apr 11, 2010 at 03:49:04PM +0100, Miguel Medalha wrote: In my case, I am doing the change because of Samba. When you run tesparm, the lastest versions of Samba give the following warning: rlimit_max: rlimit_max (1024) below minimum Windows limit (16384) When I add the line ulimit -n 1024 to /etc/profile, the warning disappears, even after a reboot. So, this certainly works for processes running as root. It's not related to root/nonroot. If you run these things when logged in, /etc/profile has been read in, so your subprocesses all inherit the ulimit. On boot, it's not clear to me whether /etc/profile is read, since I would guess that's not a login shell. (I suppose you could also test this via cron or at, since IIRC those programs do not provide a login shell either (unless asked for?).) But you are right in that it will probably depend on the particular user requirement. In any case, if surviving the boot process is desired, the changes should specifically be tested at boot, not just from a root login shell. This issue trips up even seasoned administrators (*ahem*). --keith -- kkel...@speakeasy.net pgpt4O6cUV6pk.pgp Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] ulimit [SOLVED]
In my case, I am doing the change because of Samba. When you run tesparm, the lastest versions of Samba give the following warning: In any case, if surviving the boot process is desired, the changes should specifically be tested at boot, not just from a root login shell. This issue trips up even seasoned administrators (*ahem*). --keith Agreed, I put mine in the rc startup script for ldap. I would suggest only putting into what ever process needing it vs a system wide var. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] (no subject)
http://NikoleLilly8355.co.cc ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Hosting Reco
I have two needs that require offsite hosting now, anyone know offhand of any of the unlimited storage/bandwidth vendors that exist now that allow remote scp|rsync access to the data, not just in shell scp use? I'm hunting around and its apparently hard to get a straight answer... vps or dedicated is overkill for this one need, and none of those offerings have the storage/bandwidth of the hosting only solutions. Thanks! jlc ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Yum/WGET/HTTP sourceforge etc.
I am having a problem with 5.4 that I did not have with 4.5. The problem happens only sometimes but in specific instances. Basically a summary of the problem is that certain network transactions timeout. The specfic instances are with wget, rpm, http. The problem usually, but not always, occurs with pptp stuff. (NOT running pptp but getting pptp stuff). For instance, the following command, which finishes in seconds on non-5.4 OS's: wget http://pptpclient.sourceforge.net/yum/stable/rhel4/pptp-release-current.noarch.rpm downloads about 20% then gets stuck. About 5 minutes later it downloads another 20% and then gets stuck, etc. The same thing with rpm: rpm -ivh http://pptpclient.sourceforge.net/yum/stable/rhel4/pptp-release-current.noarch.rpm waits about 3 minutes and then gives an error. I think it does the same thing as the wget but wget will keep trying, while rpm gives up. The error from rpm: Retrieving http://pptpclient.sourceforge.net/yum/stable/rhel4/pptp-release-current.noarch.rpm ..five minutes later: error: /var/tmp/rpm-xfer.DYY9e0: headerRead failed: hdr blob(7456): BAD, read returned 3568 error: /var/tmp/rpm-xfer.DYY9e0 cannot be installed I can wget the above as I mentioned before and install it that way. Before I do it, yum works fine. Afterwards, yum exhibits the same behavior of timing out (because it is using the pptp repository). Also visiting the pptp web site from Firefox times out on certain pages. I originally thought it was some problem with the pptp site, but I notice that log into hotmail.com does the same thin (fine on other operating systems). A view with Wireshark on the wget (pptp) shows the my machine receiving a reassembled TCPPDU from 216.34.181.96 (Sourceforge), sending an ack, receiving a reassembled PDU, sending an ack, receiving, sending followed by the 5 minutes or whatever of nothing. Then sourceforge sends an RST and a SYN and the process is repeated. Here is what I tried. When I put the machine directly on an ATT IP connection (12.147.X.Y) everything worked fine. Same with Comcast on a direct link. The times I am having problems is when our router is hooked up to a Comcast IP (70.88.X.Y) and assigns 192.168.5.X addresses to our machines. So when I was doing the above from 192.168.5.27 going through the router through Comcast is when I had the problem. So it is probably something with the router, but it is hard to figure out since CentOS 4.5 and Fedora do not exhibit this behavior, nor does 5.4 on most sites (mail.yahoo.com for instance). I did verify, at least from what I could, that ICMP type 3 and 4 are not being blocked. If they were, the same problem would happen on other op systems. And I was able to ping, albeit just locally, but we looked at the router settings and ping was not blocked. Anyone else have this problem / know what might be wrong? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Yum/WGET/HTTP sourceforge etc.
On Apr 11, 2010, at 6:57 PM, tony.chamberl...@lemko.com wrote: I am having a problem with 5.4 that I did not have with 4.5. The problem happens only sometimes but in specific instances. Basically a summary of the problem is that certain network transactions timeout. The specfic instances are with wget, rpm, http. The problem usually, but not always, occurs with pptp stuff. (NOT running pptp but getting pptp stuff). For instance, the following command, which finishes in seconds on non-5.4 OS's: wget http://pptpclient.sourceforge.net/yum/stable/rhel4/pptp-release-current.noarch.rpm downloads about 20% then gets stuck. About 5 minutes later it downloads another 20% and then gets stuck, etc. The same thing with rpm: rpm -ivh http://pptpclient.sourceforge.net/yum/stable/rhel4/pptp-release-current.noarch.rpm waits about 3 minutes and then gives an error. I think it does the same thing as the wget but wget will keep trying, while rpm gives up. The error from rpm: Retrieving http://pptpclient.sourceforge.net/yum/stable/rhel4/pptp-release-current.noarch.rpm ..five minutes later: error: /var/tmp/rpm-xfer.DYY9e0: headerRead failed: hdr blob(7456): BAD, read returned 3568 error: /var/tmp/rpm-xfer.DYY9e0 cannot be installed I can wget the above as I mentioned before and install it that way. Before I do it, yum works fine. Afterwards, yum exhibits the same behavior of timing out (because it is using the pptp repository). Also visiting the pptp web site from Firefox times out on certain pages. I originally thought it was some problem with the pptp site, but I notice that log into hotmail.com does the same thin (fine on other operating systems). A view with Wireshark on the wget (pptp) shows the my machine receiving a reassembled TCPPDU from 216.34.181.96 (Sourceforge), sending an ack, receiving a reassembled PDU, sending an ack, receiving, sending followed by the 5 minutes or whatever of nothing. Then sourceforge sends an RST and a SYN and the process is repeated. Here is what I tried. When I put the machine directly on an ATT IP connection (12.147.X.Y) everything worked fine. Same with Comcast on a direct link. The times I am having problems is when our router is hooked up to a Comcast IP (70.88.X.Y) and assigns 192.168.5.X addresses to our machines. So when I was doing the above from 192.168.5.27 going through the router through Comcast is when I had the problem. So it is probably something with the router, but it is hard to figure out since CentOS 4.5 and Fedora do not exhibit this behavior, nor does 5.4 on most sites (mail.yahoo.com for instance). I did verify, at least from what I could, that ICMP type 3 and 4 are not being blocked. If they were, the same problem would happen on other op systems. And I was able to ping, albeit just locally, but we looked at the router settings and ping was not blocked. Anyone else have this problem / know what might be wrong? Is this due to comcast doing a selective block on certain traffic? Apparently the FCC was prevented from checking or preventing cable companies from selectively shapping traffic. May be nothing. Just a thought. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
