Question about node migrations and hooks
by richard.seguin＠marisec.ca
Good morning,
I have two questions.
1. Is there a way to make hooks so that they apply to all instances and templates? rather than setting one at a time?
2. I believe I already have the answer to this, however I just want to be sure that there isn't a better way. I have a ovirt node that basically uses NFS for everything (data and ISOs), and it is slow as heck to get an instance to build. I'm using a 100MB switch, I have a feeling that this needs to be upgraded... Software wise though, is there anything I can do to speed up template deployments to that node?
Thanks,
Richard Seguin
9 years, 11 months
supervdsm spams scans for scsi?
by Sven Kieske
Hi,
just found this in supervdsm.log:
MainProcess|storageRefresh::DEBUG::2014-03-19
17:34:57,752::iscsi::390::Storage.Misc.excCmd::(forceScsiScan) '/bin/dd
of=/sys/class/scsi_host/host0/scan' (cwd None)
MainProcess|storageRefresh::DEBUG::2014-03-19
17:34:57,764::iscsi::390::Storage.Misc.excCmd::(forceScsiScan) '/bin/dd
of=/sys/class/scsi_host/host1/scan' (cwd None)
MainProcess|storageRefresh::DEBUG::2014-03-19
17:34:57,766::iscsi::390::Storage.Misc.excCmd::(forceScsiScan) '/bin/dd
of=/sys/class/scsi_host/host2/scan' (cwd None)
MainProcess|storageRefresh::DEBUG::2014-03-19
17:34:57,768::iscsi::390::Storage.Misc.excCmd::(forceScsiScan) '/bin/dd
of=/sys/class/scsi_host/host3/scan' (cwd None)
MainProcess|storageRefresh::DEBUG::2014-03-19
17:34:58,771::iscsi::390::Storage.Misc.excCmd::(forceScsiScan) '/bin/dd
of=/sys/class/scsi_host/host4/scan' (cwd None)
MainProcess|storageRefresh::DEBUG::2014-03-19
17:34:58,774::iscsi::390::Storage.Misc.excCmd::(forceScsiScan) '/bin/dd
of=/sys/class/scsi_host/host5/scan' (cwd None)
MainProcess|storageRefresh::DEBUG::2014-03-19
17:34:58,776::iscsi::390::Storage.Misc.excCmd::(forceScsiScan) '/bin/dd
of=/sys/class/scsi_host/host6/scan' (cwd None)
Is there any reason why this is run on hosts which don't
got any scsi volumes at all?
These messages fill up to 10% of the whole supervdsm.log
vdsm version:
vdsm-4.13.3-3.el6.x86_64
Shouldn't this just be called if I invoke such a method via
webadmin/api ?
--
Mit freundlichen Grüßen / Regards
Sven Kieske
Systemadministrator
Mittwald CM Service GmbH & Co. KG
Königsberger Straße 6
32339 Espelkamp
T: +49-5772-293-100
F: +49-5772-293-333
https://www.mittwald.de
Geschäftsführer: Robert Meyer
St.Nr.: 331/5721/1033, USt-IdNr.: DE814773217, HRA 6640, AG Bad Oeynhausen
Komplementärin: Robert Meyer Verwaltungs GmbH, HRB 13260, AG Bad Oeynhausen
9 years, 11 months
[ANN] oVirt 3.4.1 Release is now available
by Sandro Bonazzola
The oVirt development team is pleased to announce the general
availability of oVirt 3.4.1 as of May 8th 2014. This release
solidifies oVirt as a leading KVM management application and open
source alternative to VMware vSphere.
oVirt is available now for Fedora 19 and Red Hat Enterprise Linux 6.5
(or similar).
This release of oVirt includes numerous bug fixes.
See the release notes [1] for a list of the new features and bugs fixed.
The existing repository ovirt-3.4 has been updated for delivering this
release without the need of enabling any other repository, however since we
introduced package signing you need an additional step in order to get
the public keys installed on your system.
Please refer to release notes [1] for Installation / Upgrade instructions.
For Fedora 19 users, a known issue may cause installation failure
due to recent changes in sos package.
Please refer to release notes [1] known issues for resolving on your system.
A new oVirt Node and oVirt Live ISO will be available [2].
[1] http://www.ovirt.org/OVirt_3.4.1_release_notes
[2] http://resources.ovirt.org/plain/pub/ovirt-3.4/iso/
--
Sandro Bonazzola
Better technology. Faster innovation. Powered by community collaboration.
See how it works at redhat.com
9 years, 11 months
Custom Properties code duplication
by Lior Vernia
Hello,
While adding network custom properties towards oVirt 3.5, I got to take
a good look at the custom properties code in the backend and frontend.
It seems to me like there's a lot of code duplication, and I would like
to suggest the following refactoring:
1. Remove dependencies on Pattern/Matcher and ApacheCommons methods from
*CustomPropertiesUtils.java, to make them compilable with GWT, and move
these utilities to the common package. The usage of the said methods is
minimal and could easily be replaced with String methods, etc.
2. Modify KeyValueModel to delegate to the common utilities instead of
duplicating code, e.g. for validation.
3. Move some validation, which is relevant to all custom properties
(e.g. duplicate keys), from specific utils (e.g. VmPropertiesUtils) up
to the shared CustomPropertiesUtils.
4. Optionally change the implementation of custom properties members in
entities (e.g. VM) from String to Map<String, String>, which would
obviate the need for different conversion methods between String/Map -
(de)serialization would only be required in DB interaction.
The main argument against this would be that the frontend is to be moved
over the REST, and might not be written in Java much longer anyway.
However, to my understanding, there's some time until these changes take
effect. And even if the frontend is to be written in JavaScript, at
least initially the existing frontend code will have to still be used
somehow (e.g. auto-translated to JavaScript). That is to say, this
refactoring might still be beneficial for the not-so-short term.
Before going through with this, I wanted to ask for your thoughts and to
hear any specific objections to the proposed changes.
Yours, Lior.
9 years, 11 months
commons-collections v4.0
by Yevgeny Zaspitsky
Hi All,
I'd like to add the new version (4.0) of Apache commons-collections library to the dependencies of the project (we use 3.1 currently).
The new version uses the generics features of Java 5 so that make the code more type safe. You can find the full list of changes on https://commons.apache.org/proper/commons-collections/release_4_0.html.
The new API is based on the original but it isn't fully compatible with it. So in order to make the migration to the new API easier, the package has been changed to org.apache.commons.collections4. That allows having both version of the library in the classpath at the starting point and move (refactor) towards the new version gradually.
I have couple of questions regarding the new dependency:
1. Is there anything that could prevent adding the new dependency?
2. I did the change (http://gerrit.ovirt.org/26745).
The unit tests that use the new dependency pass locally and in Jenkins environments.
However when I try to run a code that is dependent on the newly added library NoClassDefFoundError being thrown.
Also I can't find commons-collections4 jar under the installation directory. I use "make clean install-dev" command for building.
Please advise.
Best regards,
____________________
Yevgeny Zaspitsky
Senior Software Engineer
Red Hat
9 years, 11 months
Re: [ovirt-devel] commons-collections v4.0
by Yevgeny Zaspitsky
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----_com.android.email_1462209507407830--
9 years, 11 months
[VDSM] [PATCH] Add the missing locked() interface
by Nir Soffer
threading.Lock has a little known locked() method, documented in
https://docs.python.org/2.6/library/thread.html#thread.lock.locked
This method is not very useful, but since pthreading.Lock must be
drop-in replacment for threading.Lock, we must implement it.
This patch adds the missing method, implementing it in the same way
Python implemnts it. Since RLock does not have this method, RLock does
not extend Lock now.
Signed-off-by: Nir Soffer <nsoffer(a)redhat.com>
---
pthreading.py | 18 ++++++++++++++----
tests.py | 7 +++++++
2 files changed, 21 insertions(+), 4 deletions(-)
diff --git a/pthreading.py b/pthreading.py
index 2e9e2d6..f1ea056 100644
--- a/pthreading.py
+++ b/pthreading.py
@@ -51,9 +51,9 @@ import os
import pthread
-class Lock(pthread.Mutex):
+class _Lock(pthread.Mutex):
"""
- Lock class mimics Python native threading.Lock() API on top of
+ _Lock class mimics Python native threading.Lock() API on top of
the POSIX thread mutex synchronization primitive.
"""
def __enter__(self):
@@ -78,9 +78,19 @@ class Lock(pthread.Mutex):
self.unlock()
-class RLock(Lock):
+class Lock(_Lock):
+ def locked(self):
+ # Yes, this is horrible hack, and the same one used by Python
+ # threadmodule.c. But this is part of Python lock interface.
+ if self.acquire(blocking=False):
+ self.release()
+ return False
+ return True
+
+
+class RLock(_Lock):
def __init__(self):
- pthread.Mutex.__init__(self, recursive=True)
+ _Lock.__init__(self, recursive=True)
class Condition(object):
diff --git a/tests.py b/tests.py
index d651288..f4c9746 100644
--- a/tests.py
+++ b/tests.py
@@ -60,6 +60,13 @@ class LockTests(TestCaseBase):
self.assertTrue(lock.acquire())
self.assertTrue(lock.acquire(False))
+ def testLocked(self):
+ lock = pthreading.Lock()
+ self.assertFalse(lock.locked())
+ with lock:
+ self.assertTrue(lock.locked())
+ self.assertFalse(lock.locked())
+
class Flag(object):
def __init__(self):
--
1.8.3.1
9 years, 11 months
just merged the look-and-feel patch -- rebase!
by Greg Sheremeta
Hi,
We just merged the look-and-feel patch [1]. The patch is gigantic and touches most parts of the UI, so please do a rebase immediately if you're doing any kind of UI work.
If you see any UI look/feel bugs (like things out of place, bad alignment, etc.), open a BZ and assign to me.
Thanks!
Greg
[1] http://gerrit.ovirt.org/#/c/24594/
Greg Sheremeta
Red Hat, Inc.
Sr. Software Engineer, RHEV
Cell: 919-807-1086
gshereme(a)redhat.com
9 years, 11 months
