Martin Mucha has posted comments on this change.

Change subject: engine: Add host poller for setup network actions
......................................................................


Patch Set 3:

(1 comment)

http://gerrit.ovirt.org/#/c/34970/3/backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/network/host/HostSetupNetworkPoller.java
File 
backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/network/host/HostSetupNetworkPoller.java:

Line 35:             if (System.currentTimeMillis() - timeBeforePoll < 
POLLING_BREAK) {
Line 36:                 Thread.sleep(POLLING_BREAK);
Line 37:             }
Line 38:         } catch (Exception e) {
Line 39:             // ignore failure. network can go down due to VDSM 
changing the network
here we get probably via failing:

org.ovirt.engine.core.vdsbroker.vdsbroker.FutureVDSCommand#get(long, 
java.util.concurrent.TimeUnit).

but if this fails (timeout or whatever), then "polling break" won't be applied, 
causing busy waiting here:
org.ovirt.engine.core.bll.network.host.HostSetupNetworksCommand#invokeSetupNetworksCommand

and incorrect waiting period here:
org.ovirt.engine.core.bll.network.NetworkConfigurator#awaitVdsmResponse


The waiting should have been defined in it's own try/catch prior to returning 
false PLUS method
org.ovirt.engine.core.vdsbroker.vdsbroker.FutureVDSCommand#get(long, 
java.util.concurrent.TimeUnit).
handles exception in wrong way and should be fixed; I'll contact rgolan about 
it.
Line 40:         }
Line 41: 
Line 42:         return false;
Line 43:     }


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Gerrit-MessageType: comment
Gerrit-Change-Id: Ic11e71f0ee4e4ed4d6ae9a1d8fe4e5613da7a48f
Gerrit-PatchSet: 3
Gerrit-Project: ovirt-engine
Gerrit-Branch: master
Gerrit-Owner: Moti Asayag <[email protected]>
Gerrit-Reviewer: Martin Mucha <[email protected]>
Gerrit-Reviewer: [email protected]
Gerrit-Reviewer: oVirt Jenkins CI Server
Gerrit-HasComments: Yes
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