Oved Ourfali has submitted this change and it was merged. Change subject: core: protocol fall back for older vdsms ...................................................................... core: protocol fall back for older vdsms When we try to install new host which only supports xmlrpc and we have cluster with compatibility level set to 3.5+ the code will fail. Solution for this issue is attempting to connect by using jsonrpc and if it fails falling back to xmlrpc. Bug-Url: https://bugzilla.redhat.com/1149655 Change-Id: Ie6f48bec60b520c089f326f8c5e79aec288ff3d6 Signed-off-by: pkliczewski <piotr.kliczewski(a)gmail.com&gt; --- M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/InstallVdsInternalCommand.java A backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/transport/ProtocolDetector.java M backend/manager/modules/common/src/main/java/org/ovirt/engine/core/common/config/ConfigValues.java M backend/manager/modules/common/src/main/java/org/ovirt/engine/core/common/vdscommands/FutureVDSCommandType.java A backend/manager/modules/common/src/main/java/org/ovirt/engine/core/common/vdscommands/TimeBoundPollVDSCommandParameters.java M backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/jsonrpc/FutureMap.java M backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/jsonrpc/JsonRpcVdsServer.java M backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/vdsbroker/IVdsServer.java A backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/vdsbroker/TimeBoundPollVDSCommand.java M backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/vdsbroker/VdsServerWrapper.java M packaging/dbscripts/upgrade/pre_upgrade/0000_config.sql 11 files changed, 236 insertions(+), 3 deletions(-) Approvals: Piotr Kliczewski: Verified Oved Ourfali: Looks good to me, approved -- To view, visit http://gerrit.ovirt.org/34098 To unsubscribe, visit http://gerrit.ovirt.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: Ie6f48bec60b520c089f326f8c5e79aec288ff3d6 Gerrit-PatchSet: 5 Gerrit-Project: ovirt-engine Gerrit-Branch: ovirt-engine-3.5 Gerrit-Owner: Piotr Kliczewski <piotr.kliczewski(a)gmail.com&gt; Gerrit-Reviewer: Oved Ourfali <oourfali(a)redhat.com&gt; Gerrit-Reviewer: Piotr Kliczewski <piotr.kliczewski(a)gmail.com&gt; Gerrit-Reviewer: Saggi Mizrahi <smizrahi(a)redhat.com&gt; Gerrit-Reviewer: Sandro Bonazzola <sbonazzo(a)redhat.com&gt; Gerrit-Reviewer: Tal Nisan <tnisan(a)redhat.com&gt; Gerrit-Reviewer: automation(a)ovirt.org Gerrit-Reviewer: oVirt Jenkins CI Server