vdsm-devel September 2012

vdsm-devel@lists.stg.fedorahosted.org

30 participants
24 discussions

[RFC]about the implement of text-based console
by Xu He Jie 26 Dec '12

26 Dec '12

Hi, I submited a patch for text-based console http://gerrit.ovirt.org/#/c/7165/ the issue I want to discussing as below: 1. fix port VS dynamic port Use fix port for all VM's console. connect console with 'ssh vmUUID@ip -p port'. Distinguishing VM by vmUUID. The current implement was vdsm will allocated port for console dynamically and spawn sub-process when VM creating. In sub-process the main thread responsible for accept new connection and dispatch output of console to each connection. When new connection is coming, main processing create new thread for each new connection. Dynamic port will allocated port for each VM and use range port. It isn't good for firewall rules. so I got a suggestion that use fix port. and connect console with 'ssh vmuuid@hostip -p fixport'. this is simple for user. We need one process for accept new connection from fix port and when new connection is coming, spawn sub-process for each vm. But because the console only can open by one process, main process need responsible for dispatching console's output of all vms and all connection. So the code will be a little complex then dynamic port. So this is dynamic port VS fix port and simple code VS complex code. Thanks!

15 56

vdsm API schema
by agl＠us.ibm.com 23 Oct '12

23 Oct '12

For the past few weeks I have been working on creating a schema that fully describes the vdsm API. I am mostly finished with that effort and I wanted to share the results with the team. Attached are two files: the raw schema and an html document with cross-linked type information. This should already be useful in its current form, but I have bigger plans. I would first like to get help to correct errors in the schema. Then, I will start the process of writing a code generator that will create C/gObject code that we can compile into a libvdsm with language bindings for python, java, etc. Please take a look at the attached files and let me know what you think? P.S. I tried to attach these to the oVirt Wiki, but they are not permitted file types. -- Adam Litke <agl(a)us.ibm.com> IBM Linux Technology Center

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Review Request: libvdsm schema updates
by agl＠us.ibm.com 01 Oct '12

01 Oct '12

Hi vdsm developers! This is a plea for review of my libvdsm schema updates. The patches I am asking for review on are found here: http://gerrit.ovirt.org/#/q/status:open+project:vdsm+branch:master+topic:sc… These patches simply change some elements of the API schema that are needed by the actual libvdsm code. I want to make some progress on this if possible so thanks in advance for taking a look. -- Adam Litke <agl(a)us.ibm.com> IBM Linux Technology Center

2 2

how engine get files from node？
by shaohef＠linux.vnet.ibm.com 30 Sep '12

30 Sep '12

Hi all, I have submitted a patch about watchdog device http://gerrit.ovirt.org/#/c/7535/ If we set 'dump' action for watchdog, qemu will generate a dump file. And I have get some feedback, how engine get these files? scp? or Will vdsm support new API to list and get these files? IMO, The new API should list and get not only dump files, but also other kinds of files. -- Sheldon Feng<shaohef(a)linux.vnet.ibm.com> IBM Linux Technology Center

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sanlock issues
by smizrahi＠redhat.com 24 Sep '12

24 Sep '12

If you are trying to run sanlock on fedora and you get this error: Sep 23 11:26:56 dhcp-XX-XX.tlv.redhat.com sanlock[7083]: 2012-09-23 11:26:56+0200 37014 [7083]: wdmd connect failed for watchdog handling You need to do this: # unload softdog if it's running rmmod softdog # Check if there are residual watchdog files under /dev and remove them rm /dev/watchdog* # reload the softdog module modprobe softdog # make sure the file is named /dev/watchdog mv /dev/watchdog? /dev/watchdog # set the proper selinux context restorecon /dev/watchdog # restart wdmd systemctl restart wdmd.service # restart sanlock systemctl restart sanlock.service # Profit! fortune

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Q on 'git push' to vdsm gerrit
by deepakcs＠linux.vnet.ibm.com 24 Sep '12

24 Sep '12

Hi, I got the below error from git push, but my patchset is actually pushed, when i see it gerrit. See change # 6856, patchset 8. git push gerrit.ovirt.org:vdsm HEAD:refs/for/master Counting objects: 36, done. Delta compression using up to 4 threads. Compressing objects: 100% (22/22), done. Writing objects: 100% (22/22), 4.33 KiB, done. Total 22 (delta 18), reused 0 (delta 0) remote: Resolving deltas: 100% (18/18) remote: Processing changes: updated: 2, refs: 1, done To gerrit.ovirt.org:vdsm ! [remote rejected] HEAD -> refs/for/master (no changes made) error: failed to push some refs to 'gerrit.ovirt.org:vdsm' Background: 1) I was asked to split patchset 7 into multiple patches, rebase and post patchset 8 2) So as part of patchset 8, i had to git pull, rebase and post it via git push ( keep the same ChangeID), which is when I see the above error. 3) But patchset 8 is visible in change 6856, so not sure if I need to be concerned abt the above error ? What does it mean then ? 3a) If you see patchset 8, the dependency is empty, is it because the prev patchset 7 was having a different dep. than 8 ? 3b) But as part of 'parent' i see the reference to the dep. patch. Question 1) Is this the right way to do a git push ? 2) Do i need to be concerned abt the git push error or I can ignore it ? 3) Dependency for patchset 8 in gerrit is empty, tho' parent shows reference to the dep. patch..is this ok, if not, what is the right procedure to follow here ? thanx, deepak

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Re: [vdsm] Change in vdsm[master]: vdsm.spec.in: use locale LC_ALL
by Ryan Harper 21 Sep '12

21 Sep '12

* dougsland(a)redhat.com <dougsland(a)redhat.com> [2012-09-19 12:42]: > Douglas Schilling Landgraf has uploaded a new change for review. > > Change subject: vdsm.spec.in: use locale LC_ALL > ...................................................................... I see that this has already been merged, but a few comments. > > vdsm.spec.in: use locale LC_ALL > > During VDSM instalation, we verify if SELinux booleans are s/instalation/installation > enabled with return of semanage command, output like: "on" or "off". > These are English words and if the system contains a different > locale, example pt_BR the validation will fail. > > Bug-Id: https://bugzilla.redhat.com/show_bug.cgi?id=857556 > > This patch will change the locale for English (C) while > installation VDSM. > > Change-Id: I22b5706e02c71f463200ce20eb0e426e1bfee6e6 > Signed-off-by: Douglas Schilling Landgraf <dougsland(a)redhat.com> > --- > M vdsm.spec.in > 1 file changed, 5 insertions(+), 0 deletions(-) > > > git pull ssh://gerrit.ovirt.org:29418/vdsm refs/changes/68/8068/1 > > diff --git a/vdsm.spec.in b/vdsm.spec.in > index ca678da..41885c2 100644 > --- a/vdsm.spec.in > +++ b/vdsm.spec.in > @@ -408,6 +408,9 @@ > rm -rf %{buildroot} > > %pre > +# Force standard locale behavior (English) > +export LC_ALL=C > + > /usr/bin/getent passwd %{vdsm_user} >/dev/null || \ > /usr/sbin/useradd -r -u 36 -g %{vdsm_group} -d /var/lib/vdsm \ > -s /sbin/nologin -c "Node Virtualization Manager" %{vdsm_user} > @@ -419,6 +422,7 @@ > virtNFS=$(/usr/sbin/semanage boolean -l | /bin/grep virt_use_nfs | cut -d ',' -f 2) > virtSANLOCK=$(/usr/sbin/semanage boolean -l | /bin/grep virt_use_sanlock | cut -d ',' -f 2) > > +# Set the booleans and persist it across reboots Either include something in the commit header that says you also added comments where semanage is used or put these in a separate patch. > if [[ "${virtNFS}" == *off* || "${virtSANLOCK}" == *off* ]]; then > /usr/sbin/semanage boolean -m -S targeted -F /dev/stdin << _EOF > virt_use_nfs=1 > @@ -426,6 +430,7 @@ > _EOF > fi > > +# Change the current state of SELinux > if /usr/sbin/selinuxenabled; then > /usr/sbin/setsebool virt_use_nfs on > /usr/sbin/setsebool virt_use_sanlock on > > > -- > To view, visit http://gerrit.ovirt.org/8068 > To unsubscribe, visit http://gerrit.ovirt.org/settings > > Gerrit-MessageType: newchange > Gerrit-Change-Id: I22b5706e02c71f463200ce20eb0e426e1bfee6e6 > Gerrit-PatchSet: 1 > Gerrit-Project: vdsm > Gerrit-Branch: master > Gerrit-Owner: Douglas Schilling Landgraf <dougsland(a)redhat.com> > _______________________________________________ > vdsm-patches mailing list > vdsm-patches(a)lists.fedorahosted.org > https://lists.fedorahosted.org/mailman/listinfo/vdsm-patches -- Ryan Harper Software Engineer; Linux Technology Center IBM Corp., Austin, Tx ryanh(a)us.ibm.com

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Why do we need clean yum cache during bootstrap?
by wudxw＠linux.vnet.ibm.com 21 Sep '12

21 Sep '12

Hi Douglas, Why do we need clean yum cache before installing packages during host installation? It could cause a ssh timeout somtimes. On my test VM, it needs several minutes do download yum metatada. Please see the test below: [root@host1 tmp]# time yum update qemu-kvm Loaded plugins: langpacks, presto, refresh-packagekit fedora/metalink | 8.6 kB 00:00 fedora | 4.2 kB 00:00 fedora/primary_db | 14 MB 00:11 fedora/group_gz | 434 kB 00:00 ovirt-nightly | 1.3 kB 00:00 ovirt-nightly/primary | 31 kB 00:00 ovirt-stable | 1.3 kB 00:00 ovirt-stable/primary | 15 kB 00:00 updates/metalink | 4.6 kB 00:00 updates | 4.7 kB 00:00 updates/primary_db | 5.9 MB 03:28 updates/group_gz | 434 kB 00:21 ovirt-nightly 183/183 ovirt-stable 69/69 No Packages marked for Update real 4m33.527s user 0m5.741s sys 0m0.772s [root@host1 tmp]# time yum update qemu-kvm Loaded plugins: langpacks, presto, refresh-packagekit No Packages marked for Update real 0m1.184s user 0m1.048s sys 0m0.115s Thanks! Mark

3 2

Problem building vdsm RPM
by Itzik Brown 20 Sep '12

20 Sep '12

I'm trying to build vdsm from git . After make rpm I get these errors: Processing files: vdsm-debuginfo-4.10.0-0.306.git5c8440f.fc17.x86_64 Checking for unpackaged file(s): /usr/lib/rpm/check-files /root/rpmbuild/BUILDROOT/vdsm-4.10.0-0.306.git5c8440f.fc17.x86_64 error: Installed (but unpackaged) file(s) found: /usr/lib64/python2.7/site-packages/vdsm/tool/load_needed_modules.py /usr/lib64/python2.7/site-packages/vdsm/tool/load_needed_modules.pyc /usr/lib64/python2.7/site-packages/vdsm/tool/load_needed_modules.pyo /usr/libexec/vdsm/hooks/after_vdsm_stop/10_faqemu /usr/share/vdsm-bootstrap/interface-2/deployUtil.py /usr/share/vdsm-bootstrap/interface-2/deployUtil.pyc /usr/share/vdsm-bootstrap/interface-2/deployUtil.pyo /usr/share/vdsm-bootstrap/interface-2/setup /usr/share/vdsm-bootstrap/interface-2/vds_bootstrap.py /usr/share/vdsm-bootstrap/interface-2/vds_bootstrap.pyc /usr/share/vdsm-bootstrap/interface-2/vds_bootstrap.pyo /usr/share/vdsm-bootstrap/interface-2/vds_bootstrap_complete.py /usr/share/vdsm-bootstrap/interface-2/vds_bootstrap_complete.pyc /usr/share/vdsm-bootstrap/interface-2/vds_bootstrap_complete.pyo /usr/share/vdsm/debugPluginClient.py /usr/share/vdsm/debugPluginClient.pyc /usr/share/vdsm/debugPluginClient.pyo /usr/share/vdsm/nwfilter.py /usr/share/vdsm/nwfilter.pyc /usr/share/vdsm/nwfilter.pyo /usr/share/vdsm/tests/glob_1c60971a-8647-44ac-ae33-6520887f8843.out /usr/share/vdsm/tests/lvs_3386c6f2-926f-42c4-839c-38287fac8998.out /usr/share/vdsm/tests/route_info.out /usr/share/vdsm/tests/tc_filter_show.out /usr/share/vdsm/vdsmDebugPlugin.py /usr/share/vdsm/vdsmDebugPlugin.pyc /usr/share/vdsm/vdsmDebugPlugin.pyo RPM build errors: Installed (but unpackaged) file(s) found: /usr/lib64/python2.7/site-packages/vdsm/tool/load_needed_modules.py /usr/lib64/python2.7/site-packages/vdsm/tool/load_needed_modules.pyc /usr/lib64/python2.7/site-packages/vdsm/tool/load_needed_modules.pyo /usr/libexec/vdsm/hooks/after_vdsm_stop/10_faqemu /usr/share/vdsm-bootstrap/interface-2/deployUtil.py /usr/share/vdsm-bootstrap/interface-2/deployUtil.pyc /usr/share/vdsm-bootstrap/interface-2/deployUtil.pyo /usr/share/vdsm-bootstrap/interface-2/setup /usr/share/vdsm-bootstrap/interface-2/vds_bootstrap.py /usr/share/vdsm-bootstrap/interface-2/vds_bootstrap.pyc /usr/share/vdsm-bootstrap/interface-2/vds_bootstrap.pyo /usr/share/vdsm-bootstrap/interface-2/vds_bootstrap_complete.py /usr/share/vdsm-bootstrap/interface-2/vds_bootstrap_complete.pyc /usr/share/vdsm-bootstrap/interface-2/vds_bootstrap_complete.pyo /usr/share/vdsm/debugPluginClient.py /usr/share/vdsm/debugPluginClient.pyc /usr/share/vdsm/debugPluginClient.pyo /usr/share/vdsm/nwfilter.py /usr/share/vdsm/nwfilter.pyc /usr/share/vdsm/nwfilter.pyo /usr/share/vdsm/tests/glob_1c60971a-8647-44ac-ae33-6520887f8843.out /usr/share/vdsm/tests/lvs_3386c6f2-926f-42c4-839c-38287fac8998.out /usr/share/vdsm/tests/route_info.out /usr/share/vdsm/tests/tc_filter_show.out /usr/share/vdsm/vdsmDebugPlugin.py /usr/share/vdsm/vdsmDebugPlugin.pyc /usr/share/vdsm/vdsmDebugPlugin.pyo make: *** [rpm] Error 1 Any idea? Thanks, Itzik

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Network Manager summit entry in oVirt wiki
by asegurap＠redhat.com 19 Sep '12

19 Sep '12

Hi everybody, Soon (October 1st-4th) I will be attending a Network Manager summit in Westford, MA to discuss integration between NM and vdsm for replacing a big part of the current "native" network configuration management use cases with Network Manager interaction. To assist us in the discussion of all the aspects of such integration and future collaboration, We have prepared an oVirt wiki entry in which you can find information about the needs, possible integration paths and open questions: http://wiki.ovirt.org/wiki/NetworkManager_Summit_Oct_2012#VDSM_NetworkManag… Tomorrow I will try to add some diagrams I am working on to make the information more accessible and clear. Finally, but most importantly, I would like to encourage you to contribute your comments, proposals and critiques to the above document so we have a most fruitful discussion in the summit. Cheers, Toni

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vdsm-devel September 2012