I see this error in attached engine.log file. 2014-08-25 09:00:26,031 INFO [org.ovirt.engine.core.bll.scheduling.SchedulingManager] (org.ovirt.thread.pool-6-thread-16) [29765492] Candidate host KVM02 (12dfa3ea-13cf-4918-b31 6-0c5643bd96be) was filtered out by VAR__FILTERTYPE__INTERNAL filter Memory (correlation id: 29765492) [-] 2014-08-25 09:00:26,032 ERROR [org.ovirt.engine.core.bll.MigrateVmToServerCommand] (org.ovirt.thread.pool-6-thread-16) [29765492] Command org.ovirt.engine.core.bll.MigrateVmToSer verCommand throw Vdc Bll exception. With error message VdcBLLException: RESOURCE_MANAGER_VDS_NOT_FOUND (Failed with error RESOURCE_MANAGER_VDS_NOT_FOUND and code 5004) Seems like kvm02 doesn't have enough memory to accommodate load of new virtual machine. Check "Max free Memory for scheduling new VMs:" available for the host. (Admin portal > Hosts > select intended host > General) and verify that its grater than "Physical Memory guaranteed" value set for the subjected virtual machine (In Resources Allocation tab inside Edit Virtual Machine window). If it's higher, Reduce it and then try migrating. Regards, Prasad Mukhedkar -------- Original Message -------- Subject: RE: [ovirt-users] Migration failed, No available host found Date: Tue, 26 Aug 2014 09:13:45 +0800 From: PaulCheung <eq2008@msn.com> To: Omer Frenkel <ofrenkel@redhat.com>, "prasad@mukhedkar.com" <prasad@mukhedkar.com> Dear Both, Attachment is the engine.log. All 3 server are in the same cluster: Default The machine is a 2way 8 core 96G RAM, each VM has 2G, and I saw the CPU/RAM status, sure have enough resource, the clour is green. I want to solve it as soon as possible, so I update it from 3.4 to 3.4.3 all 3 servers last night, but still not work. But now, I came back this morning, migration was success, I don't know why. Here is the error ID: ID 166 2014-8-25, 18:52 Migration failed, No available host found (VM: ALD-AL1-006, Source: KVM01).

Date: Mon, 25 Aug 2014 10:54:04 -0400 From: ofrenkel@redhat.com To: eq2008@msn.com CC: users@ovirt.org Subject: Re: [ovirt-users] Migration failed, No available host found

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From: "PaulCheung" <eq2008@msn.com> To: users@ovirt.org Sent: Monday, August 25, 2014 2:03:22 PM Subject: [ovirt-users] Migration failed, No available host found

Dear ALL,

I have 3 servers, KVM01, KVM02, KVM03 I want to migration some vms to KVM02 , there show a message:

Migration failed, No available host found (VM: AL1-Paul, Source: KVM03).

But I can migration from kvm01 to kvm03, or kvm03 to kvm01, but not kvm02.

I check the firewall, they are all the same! Can somebody help me!

are you sure kvm02 has enough resources (cpu/mem) to host the new vm? can you please attach engine.log

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