Change in vdsm[ovirt-3.5]: spec: Require newer kernel version on Fedora

fromani at redhat.com fromani at redhat.com
Tue Oct 20 08:41:48 UTC 2015


Francesco Romani has submitted this change and it was merged.

Change subject: spec: Require newer kernel version on Fedora
......................................................................


spec: Require newer kernel version on Fedora

iSCSI default replacement_timeout is 120 seconds, resulting in too slow
iSCSI failover in multipath setup. In vdsm, this may lead to blocking of
multiple unrelated vdsm threads for many minutes, when lvm, multipath
ore scsi scan operation blocks.

This issue was resolved in multipath (BZ1099932), by configuring iscsi
session recovery_tmo sysfs attribute to multipath fast_io_fail_tmo
value, (5 seconds in vdsm configuration). However, this configuration
was reverted to the default 120 seconds after a device went down an up
again, or after restart of the iscsid daemon (BZ1139038).

This issue was fixed in kernel 4.1.6. In this version, setting session
recovery_tmo using sysfs overrides the default value defined in iscsid
configuration file.

We have the same issue on EL; this is handled in a separate patch since
the package is not available yet on CentOS.

Change-Id: I9cdf2102fe567c6d087d9ef650d21ee34640a33a
Bug-Url: https://bugzilla.redhat.com/1272083
Backport-To: 3.6
Backport-To: 3.5
Relates-To: https://bugzilla.redhat.com/1099932
Relates-To: https://bugzilla.redhat.com/1139038
Signed-off-by: Nir Soffer <nsoffer at redhat.com>
Reviewed-on: https://gerrit.ovirt.org/44851
Continuous-Integration: Jenkins CI
Reviewed-by: Allon Mureinik <amureini at redhat.com>
Reviewed-by: Piotr Kliczewski <piotr.kliczewski at gmail.com>
Reviewed-by: Dan Kenigsberg <danken at redhat.com>
Reviewed-on: https://gerrit.ovirt.org/47207
Reviewed-by: Francesco Romani <fromani at redhat.com>
Reviewed-on: https://gerrit.ovirt.org/47473
Continuous-Integration: Francesco Romani <fromani at redhat.com>
---
M vdsm.spec.in
1 file changed, 1 insertion(+), 1 deletion(-)

Approvals:
  Nir Soffer: Verified
  Francesco Romani: Looks good to me, approved; Passed CI tests



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Gerrit-MessageType: merged
Gerrit-Change-Id: I9cdf2102fe567c6d087d9ef650d21ee34640a33a
Gerrit-PatchSet: 3
Gerrit-Project: vdsm
Gerrit-Branch: ovirt-3.5
Gerrit-Owner: Nir Soffer <nsoffer at redhat.com>
Gerrit-Reviewer: Allon Mureinik <amureini at redhat.com>
Gerrit-Reviewer: Dan Kenigsberg <danken at redhat.com>
Gerrit-Reviewer: Francesco Romani <fromani at redhat.com>
Gerrit-Reviewer: Jenkins CI
Gerrit-Reviewer: Nir Soffer <nsoffer at redhat.com>
Gerrit-Reviewer: Piotr Kliczewski <piotr.kliczewski at gmail.com>
Gerrit-Reviewer: automation at ovirt.org


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