Nir Soffer has uploaded a new change for review.
Change subject: lvm: Exclude faulty devices from lvm long filter
......................................................................
lvm: Exclude faulty devices from lvm long filter
lvm commands use filter to limit access to relevant devices. When the
filter includes a faulty device, lvm commands may block for several
minutes (stuck in D state). We have seen getDevicesList command stuck
for up to 10 minutes because of faulty devices in the long filter.
We used to build the filter from all multipath devices. Now we build the
filter only from devices which have at least one active paths.
# multipath -ll
360060160f4a0300038ed7058b5e9e311 dm-0 DGC ,VRAID
size=15G features='0' hwhandler='1 emc' wp=rw
|-+- policy='service-time 0' prio=0 status=enabled
| `- 4:0:3:0 sdd 8:48 failed faulty running
`-+- policy='service-time 0' prio=0 status=enabled
`- 4:0:2:0 sdb 8:16 failed faulty running
360060160f4a030003268ab211002e411 dm-1 DGC ,VRAID
size=30G features='1 queue_if_no_path' hwhandler='1 emc' wp=rw
|-+- policy='service-time 0' prio=4 status=active
| `- 4:0:3:1 sde 8:64 active ready running
`-+- policy='service-time 0' prio=1 status=enabled
`- 4:0:2:1 sdc 8:32 active ready running
Previously, both devices were included in the filter, now only
360060160f4a030003268ab211002e411 will be included in lvm filter.
A faulty device which became active again will be included in lvm filter
after the next refresh (every 5 minutes), or after trying edit or create
a new storage domain.
lvm uses also short filter, including devices used by the certain vg or
lv. It is possible that we also have to exclude such devices from the
short filter. This will be handled later if needed.
Change-Id: I6d7a973bcefa95813fdc289847760c0955aca30c
Bug-Url: https://bugzilla.redhat.com/880738
Signed-off-by: Nir Soffer <nsoffer(a)redhat.com>
---
M vdsm/storage/lvm.py
M vdsm/storage/multipath.py
2 files changed, 13 insertions(+), 1 deletion(-)
git pull ssh://gerrit.ovirt.org:29418/vdsm refs/changes/75/31875/1
diff --git a/vdsm/storage/lvm.py b/vdsm/storage/lvm.py
index 86edf55..9cfad01 100644
--- a/vdsm/storage/lvm.py
+++ b/vdsm/storage/lvm.py
@@ -244,7 +244,7 @@
if not self._filterStale:
return self._extraCfg
- self._extraCfg = _buildConfig(multipath.getMPDevNamesIter())
+ self._extraCfg = _buildConfig(multipath.getActiveMPDevNamesIter())
_updateLvmConf(self._extraCfg)
self._filterStale = False
diff --git a/vdsm/storage/multipath.py b/vdsm/storage/multipath.py
index ba98866..2b30995 100644
--- a/vdsm/storage/multipath.py
+++ b/vdsm/storage/multipath.py
@@ -382,6 +382,18 @@
yield os.path.join(devicemapper.DMPATH_PREFIX, name)
+def getActiveMPDevNamesIter():
+ status = devicemapper.getPathsStatus()
+ for dmId, guid in getMPDevsIter():
+ active = [slave for slave in devicemapper.getSlaves(dmId)
+ if status.get(slave) == "active"]
+ if not active:
+ log.warning("Skipping device %s - no active slave", guid)
+ continue
+ log.debug("Found device %s %s", guid, active)
+ yield os.path.join(devicemapper.DMPATH_PREFIX, guid)
+
+
def getMPDevsIter():
"""
Collect the list of all the multipath block devices.
--
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Gerrit-Change-Id: I6d7a973bcefa95813fdc289847760c0955aca30c
Gerrit-PatchSet: 1
Gerrit-Project: vdsm
Gerrit-Branch: master
Gerrit-Owner: Nir Soffer <nsoffer(a)redhat.com>
Federico Simoncelli has uploaded a new change for review.
Change subject: lib: add support for utillinux commands
......................................................................
lib: add support for utillinux commands
Change-Id: I2ea7dd19fadc600b8fe78fb436ae430d35f52165
Signed-off-by: Federico Simoncelli <fsimonce(a)redhat.com>
---
M lib/vdsm/Makefile.am
A lib/vdsm/utillinux.py
M tests/Makefile.am
A tests/utillinuxTests.py
M vdsm.spec.in
5 files changed, 132 insertions(+), 0 deletions(-)
git pull ssh://gerrit.ovirt.org:29418/vdsm refs/changes/29/35629/1
diff --git a/lib/vdsm/Makefile.am b/lib/vdsm/Makefile.am
index b862e71..4e0868a 100644
--- a/lib/vdsm/Makefile.am
+++ b/lib/vdsm/Makefile.am
@@ -33,6 +33,7 @@
profile.py \
qemuimg.py \
sslutils.py \
+ utillinux.py \
utils.py \
vdscli.py \
virtsparsify.py \
diff --git a/lib/vdsm/utillinux.py b/lib/vdsm/utillinux.py
new file mode 100644
index 0000000..7fb42cf
--- /dev/null
+++ b/lib/vdsm/utillinux.py
@@ -0,0 +1,47 @@
+#
+# Copyright 2014 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+#
+# Refer to the README and COPYING files for full details of the license
+#
+
+import os
+import re
+import signal
+
+from . import utils
+
+_blkdiscard = utils.CommandPath("blkdiscard",
+ "/sbin/blkdiscard",) # Fedora, EL6
+
+
+def blkdiscard(device, offset=None, length=None, secure=False):
+ cmd = [_blkdiscard.cmd]
+
+ if offset:
+ cmd.extend(("-o", str(offset)))
+
+ if length:
+ cmd.extend(("-l", str(length)))
+
+ if secure:
+ cmd.append("-s")
+
+ cmd.append(device)
+ rc, out, err = utils.execCmd(cmd, deathSignal=signal.SIGKILL)
+
+ if rc != 0:
+ raise QImgError(rc, out, err)
diff --git a/tests/Makefile.am b/tests/Makefile.am
index b365921..5aa9fc3 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -79,6 +79,7 @@
testlibTests.py \
toolTests.py \
transportWrapperTests.py \
+ utillinuxTests.py \
utilsTests.py \
vdsClientTests.py \
vmApiTests.py \
diff --git a/tests/utillinuxTests.py b/tests/utillinuxTests.py
new file mode 100644
index 0000000..dbbb50e
--- /dev/null
+++ b/tests/utillinuxTests.py
@@ -0,0 +1,82 @@
+#
+# Copyright 2014 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+#
+# Refer to the README and COPYING files for full details of the license
+#
+
+from testlib import VdsmTestCase as TestCaseBase
+import monkeypatch
+from vdsm import utillinux
+from vdsm import utils
+
+BLKDISCARD = utillinux._blkdiscard.cmd
+
+
+class FakeCmd(object):
+
+ def __init__(self, module, name, *calls):
+ self.patch = monkeypatch.Patch([(module, name, self)])
+ self.calls = list(calls)
+
+ def __call__(self, cmd, **kw):
+ call = self.calls.pop(0)
+ return call(cmd, **kw)
+
+ def __enter__(self):
+ self.patch.apply()
+
+ def __exit__(self, t=None, v=None, tb=None):
+ self.patch.revert()
+
+
+class BlkDiscardTests(TestCaseBase):
+
+ def test_no_options(self):
+ def discard(cmd, **kw):
+ expected = [BLKDISCARD, 'device']
+ self.assertEqual(cmd, expected)
+ return 0, '', ''
+
+ with FakeCmd(utils, 'execCmd', discard):
+ utillinux.blkdiscard('device')
+
+ def test_offset(self):
+ def discard(cmd, **kw):
+ expected = [BLKDISCARD, '-o', '1024', 'device']
+ self.assertEqual(cmd, expected)
+ return 0, '', ''
+
+ with FakeCmd(utils, 'execCmd', discard):
+ utillinux.blkdiscard('device', offset=1024)
+
+ def test_length(self):
+ def discard(cmd, **kw):
+ expected = [BLKDISCARD, '-l', '2048', 'device']
+ self.assertEqual(cmd, expected)
+ return 0, '', ''
+
+ with FakeCmd(utils, 'execCmd', discard):
+ utillinux.blkdiscard('device', length=2048)
+
+ def test_offset_and_length(self):
+ def discard(cmd, **kw):
+ expected = [BLKDISCARD, '-o', '1024', '-l', '2048', 'device']
+ self.assertEqual(cmd, expected)
+ return 0, '', ''
+
+ with FakeCmd(utils, 'execCmd', discard):
+ utillinux.blkdiscard('device', offset=1024, length=2048)
diff --git a/vdsm.spec.in b/vdsm.spec.in
index d15f5c2..befe0e0 100644
--- a/vdsm.spec.in
+++ b/vdsm.spec.in
@@ -1252,6 +1252,7 @@
%{python_sitelib}/%{vdsm_name}/qemuimg.py*
%{python_sitelib}/%{vdsm_name}/netconfpersistence.py*
%{python_sitelib}/%{vdsm_name}/sslutils.py*
+%{python_sitelib}/%{vdsm_name}/utillinux.py*
%{python_sitelib}/%{vdsm_name}/utils.py*
%{python_sitelib}/%{vdsm_name}/vdscli.py*
%{python_sitelib}/%{vdsm_name}/virtsparsify.py*
--
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Gerrit-Change-Id: I2ea7dd19fadc600b8fe78fb436ae430d35f52165
Gerrit-PatchSet: 1
Gerrit-Project: vdsm
Gerrit-Branch: master
Gerrit-Owner: Federico Simoncelli <fsimonce(a)redhat.com>
Nir Soffer has uploaded a new change for review.
Change subject: lvm: Decrease number of retries before failing
......................................................................
lvm: Decrease number of retries before failing
Previously we configured lvm to stop accessing a device during an lvm
opoeration after 3 errors. This can cause lvm to block 3 times when
trying to access inaccessible device. With current iscsi settings, each
block can be 120 seconds, total 360 seconds. We have seen lvm block for
couple of minutes in such cases.
The retries seems uneeded when working with multiple paths, as multipath
already retry all available paths after SCSI errors on one path. However
when working with single path, multipath should fail after one try.
According to lvm developer this may decrease the time lvm is blocked
when devices are not accesible.
(Not tested yet)
Change-Id: I5d11abaaff45ce86e88c6589264e162318ac1f1d
Relates-To: https://bugzilla.redhat.com/880738
Signed-off-by: Nir Soffer <nsoffer(a)redhat.com>
---
M vdsm/storage/lvm.py
1 file changed, 1 insertion(+), 1 deletion(-)
git pull ssh://gerrit.ovirt.org:29418/vdsm refs/changes/56/32356/1
diff --git a/vdsm/storage/lvm.py b/vdsm/storage/lvm.py
index 86edf55..f760f7b 100644
--- a/vdsm/storage/lvm.py
+++ b/vdsm/storage/lvm.py
@@ -106,7 +106,7 @@
preferred_names = ["^/dev/mapper/"]
ignore_suspended_devices=1
write_cache_state=0
-disable_after_error_count=3
+disable_after_error_count=1
obtain_device_list_from_udev=0
%s
}
--
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Gerrit-PatchSet: 1
Gerrit-Project: vdsm
Gerrit-Branch: master
Gerrit-Owner: Nir Soffer <nsoffer(a)redhat.com>
Nir Soffer has uploaded a new change for review.
Change subject: clusterlock: Remove uneeded workaround
......................................................................
clusterlock: Remove uneeded workaround
Sanlock version XXXX had a off-by-one bug when calling get_hosts with a
host id, returning info for the next host. This bug is fixed in version
XXX. Now we can use the hostId parameter, making the call more efficient
and simpligying clusterlock code.
Change-Id: Ide75e749fbc2916540c2b526b78fedc247b5c6f9
Signed-off-by: Nir Soffer <nsoffer(a)redhat.com>
---
M vdsm.spec.in
M vdsm/storage/clusterlock.py
2 files changed, 5 insertions(+), 16 deletions(-)
git pull ssh://gerrit.ovirt.org:29418/vdsm refs/changes/62/31162/1
diff --git a/vdsm.spec.in b/vdsm.spec.in
index 5ba6fc6..fc39eb9 100644
--- a/vdsm.spec.in
+++ b/vdsm.spec.in
@@ -167,7 +167,7 @@
Requires: iscsi-initiator-utils >= 6.2.0.873-21
%endif
-Requires: sanlock >= 2.8, sanlock-python
+Requires: sanlock >= XXX, sanlock-python
%if 0%{?rhel}
Requires: python-ethtool >= 0.6-3
diff --git a/vdsm/storage/clusterlock.py b/vdsm/storage/clusterlock.py
index 24a5d81..17cdd53 100644
--- a/vdsm/storage/clusterlock.py
+++ b/vdsm/storage/clusterlock.py
@@ -265,26 +265,15 @@
return False
def getHostStatus(self, hostId):
- # Note: get_hosts has off-by-one bug when asking for particular host
- # id, so get all hosts info and filter.
- # See https://bugzilla.redhat.com/1111210
try:
- hosts = sanlock.get_hosts(self._sdUUID)
+ hosts = sanlock.get_hosts(self._sdUUID, hostId)
except sanlock.SanlockException as e:
self.log.debug("Unable to get host %d status in lockspace %s: %s",
hostId, self._sdUUID, e)
return HOST_STATUS_UNAVAILABLE
-
- for info in hosts:
- if info['host_id'] == hostId:
- status = info['flags']
- return self.STATUS_NAME[status]
-
- # get_hosts with host_id=0 returns only hosts with timestamp != 0,
- # which means that no host is using this host id now. If there a
- # timestamp, sanlock will return HOST_UNKNOWN and then HOST_LIVE or
- # HOST_FAIL.
- return HOST_STATUS_FREE
+ else:
+ status = hosts[0]['flags']
+ return self.STATUS_NAME[status]
# The hostId parameter is maintained here only for compatibility with
# ClusterLock. We could consider to remove it in the future but keeping it
--
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Gerrit-Owner: Nir Soffer <nsoffer(a)redhat.com>
Antoni Segura Puimedon has uploaded a new change for review.
Change subject: vdsmcli: Add a contrib command line client alternative
......................................................................
vdsmcli: Add a contrib command line client alternative
This command line client is built by hand for the convenience of
developers and requires the click library:
pip install click
It easily supports commands and subcommands. For example:
vdsmcli network
is a command and 'show' and 'add' are its subcommands.
Examples:
toniel602 ~ # vdsmcli network show -k nics -k networks
============================================= Nics
eth6
eth5
eth4
eth3
eth2
eth1
============================================= Networks
foo
or
toniel602 ~ # vdsmcli --verbode --pprint network show -k networks
============================================= Networks
===============
foo
===============
{'addr': '',
'bootproto4': 'none',
'bridged': False,
'gateway': '',
'iface': 'bond42',
'interface': 'bond42',
'ipv6addrs': ['2620:52:0:223c:201:a4ff:feac:8796/64',
'fe80::201:a4ff:feac:8796/64'],
'ipv6gateway': 'fe80:52:0:223c::3fe',
'mtu': '1500',
'netmask': ''}
addition
toniel602 ~ # ./cvdsm.py -v -p network add foo --bridgeless --nic eth4
--nic eth5 --bond bond42
Networks: {u'foo': {'bonding': u'bond42', 'bridged': False}}
Bonds: {u'bond42': {'nics': (u'eth4', u'eth5')}}
Succeeded. Done
One could extend it with a vm command so that it was easy to do:
vdsmcli vm hotplug 34f5f608-91ed-48d1-af31-c3a3d788678e nic --mac 00:11:22:33:44:55 --model virtio
Change-Id: Ie5574b2b34f0b7b2174e9da0c4487f812ff20f5b
Signed-off-by: Antoni S. Puimedon <asegurap(a)redhat.com>
---
A contrib/vdsmcli.py
1 file changed, 113 insertions(+), 0 deletions(-)
git pull ssh://gerrit.ovirt.org:29418/vdsm refs/changes/52/28152/1
diff --git a/contrib/vdsmcli.py b/contrib/vdsmcli.py
new file mode 100644
index 0000000..2255201
--- /dev/null
+++ b/contrib/vdsmcli.py
@@ -0,0 +1,113 @@
+#!/usr/bin/env python2
+# Copyright 2014 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+#
+# Refer to the README and COPYING files for full details of the license
+#
+"""This is a command line client for vdsm."""
+
+from pprint import pformat
+
+import click
+
+from vdsm import netinfo, vdscli
+
+_NET_DEVICE_TYPES = ('networks', 'bridges', 'vlans', 'bondings', 'nics')
+
+
+class Options(object):
+ def __init__(self, verbose=None, pprint=None):
+ self.verbose = verbose
+ self.pprint = pprint
+
+
+(a)click.group()
+(a)click.option('-v', '--verbose', is_flag=True)
+(a)click.option('-p', '--pprint', is_flag=True)
+(a)click.pass_context
+def cli(ctx, verbose, pprint):
+ ctx.obj = Options(verbose, pprint)
+
+
+(a)cli.group()
+(a)click.pass_obj
+def network(options):
+ """Network actions and information displaying."""
+ pass
+
+
+(a)network.command(help='Configure network')
+(a)click.pass_obj
+(a)click.option('--bridged/--bridgeless', default=True)
+(a)click.option('--vlan', default=None, type=click.INT)
+(a)click.option('--bond', default=None)
+(a)click.option('--bond-opts', default=None)
+(a)click.option('--nic', multiple=True)
+(a)click.argument('name')
+(a)click.argument('extra_attributes', required=False, nargs=-1)
+def add(options, bridged, vlan, bond, bond_opts, nic, name, extra_attributes):
+ conn = vdscli.connect()
+ networks = {name: {'bridged': bridged}}
+ if vlan:
+ networks[name]['vlan'] = vlan
+ if len(nic) == 1:
+ networks[name]['nic'] = nic[0]
+ if bond:
+ networks[name]['bonding'] = bond
+ bonds = {bond: {'nics': nic}}
+ if bond_opts:
+ bonds[bond]['options'] = bond_opts
+ else:
+ bonds = {}
+
+ for key, value in (elem.split('=') for elem in extra_attributes):
+ networks[name][key] = value
+
+ if options.verbose:
+ click.echo('Networks: %s' % (pformat(networks) if options.pprint else
+ networs))
+ click.echo('Bonds: %s' % (pformat(bonds) if options.pprint else bonds))
+ result = conn.setupNetworks(networks, bonds, {'connectivityCheck': False})
+ code = result['status']['code']
+ message = result['status']['message']
+ click.echo('%s. %s' % ('Succeeded' if code == 0 else 'Failed', message))
+
+
+(a)network.command(help='show network and net device information')
+(a)click.pass_obj
+(a)click.option('--kind', '-k', multiple=True, type=click.Choice(
+ _NET_DEVICE_TYPES))
+def show(options, kind):
+ if not kind:
+ kind = ('networks',)
+ conn = vdscli.connect()
+ info = netinfo.NetInfo(conn.getVdsCapabilities()['info'])
+ for k in kind:
+ click.echo('')
+ click.echo('=' * 45, nl=False)
+ click.echo(' ' + k[0].upper() + k[1:])
+ for name, attrs in getattr(info, k).iteritems():
+ if options.verbose:
+ click.echo('=' * 15)
+ click.echo(name)
+ if options.verbose:
+ click.echo('=' * 15)
+ click.echo(pformat(attrs) if options.pprint else attrs)
+ click.echo('')
+
+
+if __name__ == '__main__':
+ cli()
--
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