Re: [ovirt-devel] Host's status how to change to UP when I execute Management--> Active command
by Liran Rotenberg
Hi,
The engine will monitor that host. Once it's reachable and we can get
information from it the status will change accordingly.
Please check out the HostMonitoring class.
On Thu, Nov 5, 2020 at 11:57 AM lifuqiong(a)sunyainfo.com <
lifuqiong(a)sunyainfo.com> wrote:
>
> Hi,
> I checkout ovirt-engine's code with branch 4.2; When execute Host's
> Management --> Active command, ovirt engine just set vds's status to
> "Unassigned" but how the vds's status changed to "UP" in ovirt-engine? The
> code in ActiveVdsCommand.executeCommand() as follows:
> protected void executeCommand() {
>
> final VDS vds = getVds();
> try (EngineLock monitoringLock = acquireMonitorLock("Activate
> host")) {
> executionHandler.updateSpecificActionJobCompleted(vds.getId(),
> ActionType.MaintenanceVds, false);
>
> setSucceeded(setVdsStatus(VDSStatus.Unassigned).getSucceeded());
>
> if (getSucceeded()) {
> TransactionSupport.executeInNewTransaction(() -> {
> // set network to operational / non-operational
> List<Network> networks =
> networkDao.getAllForCluster(vds.getClusterId());
> networkClusterHelper.setStatus(vds.getClusterId(),
> networks);
> return null;
> });
>
> // Start glusterd service on the node, which would haven
> been stopped due to maintenance
> if (vds.getClusterSupportsGlusterService()) {
> runVdsCommand(VDSCommandType.ManageGlusterService,
> new GlusterServiceVDSParameters(vds.getId(),
> Arrays.asList("glusterd"), "restart"));
> // starting vdo service
> GlusterStatus isRunning =
> glusterUtil.isVDORunning(vds.getId());
> switch (isRunning) {
> case DOWN:
> log.info("VDO service is down in host : '{}' with
> id '{}', starting VDO service",
> vds.getHostName(),
> vds.getId());
> startVDOService(vds);
> break;
> case UP:
> log.info("VDO service is up in host : '{}' with
> id '{}', skipping starting of VDO service",
> vds.getHostName(),
> vds.getId());
> break;
> case UNKNOWN:
> log.info("VDO service is not installed host :
> '{}' with id '{}', ignoring to start VDO service",
> vds.getHostName(),
> vds.getId());
> break;
> }
>
> }
> }
> }
> }
>
>
> Your Sincerely
> Mark Lee
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Host's status how to change to UP when I execute Management--> Active command
by lifuqiong＠sunyainfo.com
Hi,
I checkout ovirt-engine's code with branch 4.2; When execute Host's Management --> Active command, ovirt engine just set vds's status to "Unassigned" but how the vds's status changed to "UP" in ovirt-engine? The code in ActiveVdsCommand.executeCommand() as follows:
protected void executeCommand() {
final VDS vds = getVds();
try (EngineLock monitoringLock = acquireMonitorLock("Activate host")) {
executionHandler.updateSpecificActionJobCompleted(vds.getId(), ActionType.MaintenanceVds, false);
setSucceeded(setVdsStatus(VDSStatus.Unassigned).getSucceeded());
if (getSucceeded()) {
TransactionSupport.executeInNewTransaction(() -> {
// set network to operational / non-operational
List<Network> networks = networkDao.getAllForCluster(vds.getClusterId());
networkClusterHelper.setStatus(vds.getClusterId(), networks);
return null;
});
// Start glusterd service on the node, which would haven been stopped due to maintenance
if (vds.getClusterSupportsGlusterService()) {
runVdsCommand(VDSCommandType.ManageGlusterService,
new GlusterServiceVDSParameters(vds.getId(), Arrays.asList("glusterd"), "restart"));
// starting vdo service
GlusterStatus isRunning = glusterUtil.isVDORunning(vds.getId());
switch (isRunning) {
case DOWN:
log.info("VDO service is down in host : '{}' with id '{}', starting VDO service",
vds.getHostName(),
vds.getId());
startVDOService(vds);
break;
case UP:
log.info("VDO service is up in host : '{}' with id '{}', skipping starting of VDO service",
vds.getHostName(),
vds.getId());
break;
case UNKNOWN:
log.info("VDO service is not installed host : '{}' with id '{}', ignoring to start VDO service",
vds.getHostName(),
vds.getId());
break;
}
}
}
}
}
Your Sincerely
Mark Lee
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--
Ales Musil
Software Engineer - RHV Network
Red Hat EMEA <https://www.redhat.com>
amusil(a)redhat.com IM: amusil
<https://red.ht/sig>
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