Change in ovirt-engine[master]: core: Add actual free memory to vds statistics

[dfediuck at redhat.com]

Doron Fediuck has submitted this change and it was merged.

Change subject: core: Add actual free memory to vds statistics
......................................................................


core: Add actual free memory to vds statistics

currently, only memAvailable is exposed by vdsm to engine. But this api is a
calculated value and so it may return negative value in case ksm
is up and pages are shared among VMs. This causes wrong 'memory under
defined threshold' logs.

The new "memFree" returns the true free memory on the host.
i.e. 'MemFree' + 'Cached' + 'Buffers' (from meminfo)

Change-Id: I68bbee6cc3c43636c2059443d980a2ae4c639854
Bug-Url: https://bugzilla.redhat.com/977758
Signed-off-by: Ofri Masad <omasad at redhat.com>
---
M backend/manager/modules/common/src/main/java/org/ovirt/engine/core/common/businessentities/VDS.java
M backend/manager/modules/common/src/main/java/org/ovirt/engine/core/common/businessentities/VdsStatistics.java
M backend/manager/modules/dal/src/main/java/org/ovirt/engine/core/dao/VdsStatisticsDAODbFacadeImpl.java
M backend/manager/modules/utils/src/test/java/org/ovirt/engine/core/utils/serialization/json/JsonObjectSerializationEntitiesTest.java
M backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/VdsUpdateRunTimeInfo.java
M backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/vdsbroker/VdsBrokerObjectsBuilder.java
M backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/vdsbroker/VdsProperties.java
M packaging/dbscripts/create_views.sql
A packaging/dbscripts/upgrade/03_03_0440_add_free_mem_to_vds_statistics.sql
M packaging/dbscripts/vds_sp.sql
10 files changed, 54 insertions(+), 11 deletions(-)

Approvals:
  Doron Fediuck: Verified; Looks good to me, approved


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Gerrit-MessageType: merged
Gerrit-Change-Id: I68bbee6cc3c43636c2059443d980a2ae4c639854
Gerrit-PatchSet: 4
Gerrit-Project: ovirt-engine
Gerrit-Branch: master
Gerrit-Owner: ofri masad <omasad at redhat.com>
Gerrit-Reviewer: Doron Fediuck <dfediuck at redhat.com>
Gerrit-Reviewer: Eli Mesika <emesika at redhat.com>
Gerrit-Reviewer: Gilad Chaplik <gchaplik at redhat.com>
Gerrit-Reviewer: Roy Golan <rgolan at redhat.com>
Gerrit-Reviewer: oVirt Jenkins CI Server
Gerrit-Reviewer: ofri masad <omasad at redhat.com>