[Users] problems with vzctl init logging patch
hi all, my init logging patch works so far, but unfortunately it breaks checkpointing: --- vzctl chkpnt 101 Setting up checkpoint... suspend... dump... Can not dump container: Invalid argument Error: d_path err=-22 Checkpointing failed --- Maybe some of the developers can give me a hint whats wrong? lsof shows (16531 id the logging process) lt-vzctl 16531 root cwd DIR 0,22 4096 1226401 /var/lib/vz/root/101 lt-vzctl 16531 root rtd DIR 0,22 4096 1226401 /var/lib/vz/root/101 lt-vzctl 16531 root txt REG8,198155 2047179 /home/dietmar/pve/vzctl/vzctl-3.0.22/src/.libs/lt-vzctl lt-vzctl 16531 root mem REG0,0 0 [heap] (stat: No such file or directory) lt-vzctl 16531 root mem REG8,197928 1896840 /lib/ld-2.3.6.so lt-vzctl 16531 root mem REG8,1 488939 2031943 /home/dietmar/pve/vzctl/vzctl-3.0.22/src/lib/.libs/libvzctl-0.0.2.so lt-vzctl 16531 root mem REG8,110392 1896846 /lib/libdl-2.3.6.so lt-vzctl 16531 root mem REG8,110520 1896843 /lib/libutil-2.3.6.so lt-vzctl 16531 root mem REG8,1 1282008 1896845 /lib/libc-2.3.6.so lt-vzctl 16531 root0u CHR1,3 1423308 /var/lib/vz/root/101/dev/null lt-vzctl 16531 root1w REG 0,22 1941 1232142 /var/lib/vz/root/101/var/log/init.log lt-vzctl 16531 root2r FIFO 0,22 1232141 /var/lib/vz/root/101/var/log/init.fifo env.c.diff Description: env.c.diff ___ Users mailing list Users@openvz.org https://openvz.org/mailman/listinfo/users
[Users] usage of swap on host server
does openvz can use the swap partition on the host server for the VE inside it? because i have 2GB RAM and 2GB swap on the host server, then setup 2 VE with 1GB guaranteed RAM and 1.5GB burstable RAM for each VE. it seems that if the 2 VE burst the RAM usage more than 2GB in total, the host didn't use its swap partition to accommodate the burst need as I check the swap partition is always show 0 is it true that i can't use the host swap as RAM for VE? in other word 2GB RAM + 2GB swap != 4GB memory can be allocated for VEs? Best Regards, Markus Send instant messages to your online friends http://uk.messenger.yahoo.com ___ Users mailing list Users@openvz.org https://openvz.org/mailman/listinfo/users
AW: [Users] problems with vzctl init logging patch
Just a guess: its the logging proxess itself, because that process still runs on the host - I need to do a exec instead? - Dietmar -Ursprüngliche Nachricht- Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im Auftrag von Dietmar Maurer Gesendet: Mittwoch, 12. März 2008 10:37 An: users@openvz.org Betreff: [Users] problems with vzctl init logging patch hi all, my init logging patch works so far, but unfortunately it breaks checkpointing: --- vzctl chkpnt 101 Setting up checkpoint... suspend... dump... Can not dump container: Invalid argument Error: d_path err=-22 Checkpointing failed --- Maybe some of the developers can give me a hint whats wrong? lsof shows (16531 id the logging process) lt-vzctl 16531 root cwd DIR 0,22 4096 1226401 /var/lib/vz/root/101 lt-vzctl 16531 root rtd DIR 0,22 4096 1226401 /var/lib/vz/root/101 lt-vzctl 16531 root txt REG8,198155 2047179 /home/dietmar/pve/vzctl/vzctl-3.0.22/src/.libs/lt-vzctl lt-vzctl 16531 root mem REG0,0 0 [heap] (stat: No such file or directory) lt-vzctl 16531 root mem REG8,197928 1896840 /lib/ld-2.3.6.so lt-vzctl 16531 root mem REG8,1 488939 2031943 /home/dietmar/pve/vzctl/vzctl-3.0.22/src/lib/.libs/libvzctl-0.0.2.so lt-vzctl 16531 root mem REG8,110392 1896846 /lib/libdl-2.3.6.so lt-vzctl 16531 root mem REG8,110520 1896843 /lib/libutil-2.3.6.so lt-vzctl 16531 root mem REG8,1 1282008 1896845 /lib/libc-2.3.6.so lt-vzctl 16531 root0u CHR1,3 1423308 /var/lib/vz/root/101/dev/null lt-vzctl 16531 root1w REG 0,22 1941 1232142 /var/lib/vz/root/101/var/log/init.log lt-vzctl 16531 root2r FIFO 0,22 1232141 /var/lib/vz/root/101/var/log/init.fifo ___ Users mailing list Users@openvz.org https://openvz.org/mailman/listinfo/users
Re: [Users] usage of swap on host server
Zitat von Markus Hardiyanto [EMAIL PROTECTED]: does openvz can use the swap partition on the host server for the VE inside it? because i have 2GB RAM and 2GB swap on the host server, then setup 2 VE with 1GB guaranteed RAM and 1.5GB burstable RAM for each VE. it seems that if the 2 VE burst the RAM usage more than 2GB in total, the host didn't use its swap partition to accommodate the burst need as I check the swap partition is always show 0 is it true that i can't use the host swap as RAM for VE? in other word 2GB RAM + 2GB swap != 4GB memory can be allocated for VEs? Best Regards, Markus The VE can use the memory supplied by the hardware node. It does not matter if the HW node uses RAM or SWAP beside performance. If the HW node does not use SWAP you simply have not *used* but maybe only reserved more then 2GB in sum (HW-node + VE). You can check /proc/meminfo on the HW-node to see how much of your RAM is used. Regards Andreas -- All your trash belong to us ;-) www.spamschlucker.org To: [EMAIL PROTECTED] ___ Users mailing list Users@openvz.org https://openvz.org/mailman/listinfo/users
Re: [Users] usage of swap on host server
Markus Hardiyanto wrote: does openvz can use the swap partition on the host server for the VE inside it? because i have 2GB RAM and 2GB swap on the host server, then setup 2 VE with 1GB guaranteed RAM and 1.5GB burstable RAM for each VE. it seems that if the 2 VE burst the RAM usage more than 2GB in total, the host didn't use its swap partition to accommodate the burst need as I check the swap partition is always show 0 is it true that i can't use the host swap as RAM for VE? in other word 2GB RAM + 2GB swap != 4GB memory can be allocated for VEs? Host system swap is definitely used then needed. PS in OpenVZ we do not understand terms such as burstable RAM. Where have you got it from? ___ Users mailing list Users@openvz.org https://openvz.org/mailman/listinfo/users
Re: AW: [Users] problems with vzctl init logging patch
This looks good. Can you (1) make it optional, i.e. retain the old behavior by default and provide a way to turn init logging on (command-line switch, or VE config parameter) (2) make init-logger so it would not depend on perl being available inside the container; i guess it can be rewritten in shell as /bin/sh should be there (3) add the comment to init-logger saying that this file was copied from the host system to this container and so any changes made to it inside a container will be lost during the next container start (4) document it all (5) add init-logger to the vzctl.spec file Dietmar Maurer wrote: Ok, exec solves the problem. Attached is the new patch. ___ Users mailing list Users@openvz.org https://openvz.org/mailman/listinfo/users
Re: [Users] usage of swap on host server
From: Kir Kolyshkin [EMAIL PROTECTED] PS in OpenVZ we do not understand terms such as burstable RAM. Where have you got it from? As far as i know OpenVZ have garanteed and burstable RAM. (Xen does not have burstable RAM). And we use it fine. It also should use the HN's SWAP as additional memory for the VE's Danny. ___ Users mailing list Users@openvz.org https://openvz.org/mailman/listinfo/users
Re: AW: AW: [Users] problems with vzctl init logging patch
Dietmar Maurer wrote: This looks good. Can you (1) make it optional, i.e. retain the old behavior by default and provide a way to turn init logging on (command-line switch, or VE config parameter) Ok (2) make init-logger so it would not depend on perl being available inside the container; i guess it can be rewritten in shell as /bin/sh should be there Will try. But cant we depend on perl? Perl should be available on most platforms. I can even add a test if perl is available, and do not start the logger if there is no perl? Adding a check makes sense. But first -- why do you need perl at all? Is there something that can't be done in shell? (3) add the comment to init-logger saying that this file was copied from the host system to this container and so any changes made to it inside a container will be lost during the next container start (4) document it all (5) add init-logger to the vzctl.spec file Ok, will send a new patch when ready. - Dietmar ___ Users mailing list Users@openvz.org https://openvz.org/mailman/listinfo/users ___ Users mailing list Users@openvz.org https://openvz.org/mailman/listinfo/users
AW: AW: AW: [Users] problems with vzctl init logging patch
Adding a check makes sense. But first -- why do you need perl at all? Is there something that can't be done in shell? I guess you are right - will rewrite it. - Dietmar ___ Users mailing list Users@openvz.org https://openvz.org/mailman/listinfo/users
Re: [Users] usage of swap on host server
the problem is i'm starting to get error: fork: cannot allocate memory, and when it happens apache will show 500 internal server error and wont fix if i'm not stopping and starting it manually. any way to prevent this? I want the RAM allocation for the VE remains the same. Best Regards, Markus - Original Message From: Danny Terweij [EMAIL PROTECTED] To: users@openvz.org Sent: Wednesday, March 12, 2008 23:16:24 Subject: Re: [Users] usage of swap on host server It also should use the HN's SWAP as additional memory for the VE's Send instant messages to your online friends http://uk.messenger.yahoo.com ___ Users mailing list Users@openvz.org https://openvz.org/mailman/listinfo/users
[Users] Mainstream progress?
Hi, the ongoing merge of OpenVZ-based lightweight virtualization into mainline Linux seems to be progressing nicely and I have a few questions about it: - How usable will net namespaces be in 2.6.25? I'm especially interested in assigning a real hardware ethernet device to a VE. - Will there be an OpenVZ patch or against 2.6.25? - Do you expect net namespace/virtualization work to be completely merged in 2.6.26? - Which OpenVZ features will not make it to mainline in the 2.6.26 timeframe? Some of the questions above probably can't be answered without guessing, but a good guess is better than no information and I'd appreciate any status update newer than the OpenVZ blog entry from 2008-01-26. Thanks, Carl-Daniel ___ Users mailing list Users@openvz.org https://openvz.org/mailman/listinfo/users
Re: [Users] usage of swap on host server
Hello Jerry, thanks for your suggestion, but other process also having the same problem, such as firewall and email server. Best Regards, Markus - Original Message From: Jerry Del Rio [EMAIL PROTECTED] To: users@openvz.org; Markus Hardiyanto [EMAIL PROTECTED] Sent: Thursday, March 13, 2008 10:16:26 Subject: Re: [Users] usage of swap on host server Markus, if you plan to have just a few users you may want to reduce the number of processes apache will fork by deault. Take a look at the StartServers parameter in the IfModule prefork.c section of the httpd.conf file. Good luck -Jerry Quoting Markus Hardiyanto [EMAIL PROTECTED]: the problem is i'm starting to get error: fork: cannot allocate memory, and when it happens apache will show 500 internal server error and wont fix if i'm not stopping and starting it manually. any way to prevent this? I want the RAM allocation for the VE remains the same. Best Regards, Markus - Original Message From: Danny Terweij [EMAIL PROTECTED] To: users@openvz.org Sent: Wednesday, March 12, 2008 23:16:24 Subject: Re: [Users] usage of swap on host server It also should use the HN's SWAP as additional memory for the VE's Send instant messages to your online friends http://uk.messenger.yahoo.com ___ Users mailing list Users@openvz.org https://openvz.org/mailman/listinfo/users -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. Send instant messages to your online friends http://uk.messenger.yahoo.com ___ Users mailing list Users@openvz.org https://openvz.org/mailman/listinfo/users
