Francesco Romani has submitted this change and it was merged.
Change subject: spec: Require newer kernel version for RHEL ......................................................................
spec: Require newer kernel version for RHEL
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 3.10.0-229.17.1.el7. In this version, setting session recovery_tmo using sysfs overrides the default value defined in iscsid configuration file.
This fix is not available in CentOS, so we require the new kernel only for RHEL.
Change-Id: I91c2c6b268d728ba6cee0232f72fe2459baa1ca2 Bug-Url: https://bugzilla.redhat.com/980139 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@redhat.com Reviewed-on: https://gerrit.ovirt.org/47078 Continuous-Integration: Jenkins CI Reviewed-by: Francesco Romani fromani@redhat.com Reviewed-by: Dan Kenigsberg danken@redhat.com Reviewed-on: https://gerrit.ovirt.org/47500 --- M vdsm.spec.in 1 file changed, 4 insertions(+), 0 deletions(-)
Approvals: Nir Soffer: Verified Jenkins CI: Passed CI tests Francesco Romani: Looks good to me, approved