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-===================================
-2 Gap analysis in upstream projects
-===================================
-
-This section presents the findings of gaps on existing VIM platforms.
-The focus was to identify gaps based on the features and requirements specified in Section 3.3.
-The analysis work performed resulted in the identification of gaps of which are herein presented.
-
-2.1 Monasca
-===========
-
-Monasca is an open-source monitoring-as-a-service (MONaaS) solution that integrates with OpenStack.
-Even though it is still in its early days, it is the interest of the community that the platform be multi-tenant,
-highly scalable, performant and fault-tolerant. Companion with a streaming alarm engine and a notification engine,
-is a northbound REST API users can use to interact with Monasca. Hundreds of thousands of metrics per second can be processed [8].
-
-2.1.1 Memory usage in HyperV
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-* Type: 'missing'
-* Description:
-
-  + To-be
-
-    - Monasca should collect memory usage in HyperV.
-
-  + As-is:
-
-    - Monasca does not support querying memory usage of HyperV.
-
-  + Gap
-
-    - Monasca does not support querying memory usage of HyperV.
-
-2.1.2 Memory usage in Libvirt
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-* Type: 'missing'
-* Description:
-
-  + To-be
-
-    - Monasca should collect memory usage in Libvirt.
-
-  + As-is:
-
-    - Monasca does not support querying memory usage of Libvirt.
-
-  + Gap
-
-    - Monasca does not support querying memory usage of Libvirt.
-
-2.2 Heat
-==========
-
-Heat is an orchestration project of openstack. It can be used for deploy application.
-Its cfn-hup tool can monitor metadata in VM and notify to heat. But this function is poor now,
-we can extend cfn-hup to collect more information inside VM and make failure prediction.
-
-2.2.1 Cfn-hup
-^^^^^^^^^^^^^
-
-* Type: 'monitoring issue'
-* Description:
-
-  + To-be
-
-    - Cfn-hup is able to collect more metrics than metadata inside VM. These metrics can be used for failure prediction.
-
-  + As-is:
-
-    - Cfn-hup just can monitor metadata inside VM.
-
-  + Gap
-
-    - Cfn-hup should monitor more information inside VM.
-
-2.3 VM Introspection
-=====================
-
-Virtual machine introspection (VMI) is a mechanism that allows indirect inspection and manipulation of the state of virtual machines.
-It resulted in a variety of VMI-based applications dealing with security, performance, and debugging in virtual machine environments.
-Of course, it can be used to collect detail metrics in VM and used for failure prediction.
-
-LibVMI is an open source implementation of VMI supporting commodity hypervisors such as Xen and KVM.
-LibVMI provides the functionality of mapping raw memory pages of VMs inside the privileged VM and relies on
-monitoring software to interpret the contents of these mapped pages. For more information, please visit website: http://libvmi.com/
-
-2.3.1 VM Introspection
-^^^^^^^^^^^^^^^^^^^^^^
-
-* Type: 'monitoring issue'
-* Description:
-
-  + To-be
-
-    - VMI can be used to collect detail information inside VM for failure prediction.
-
-  + As-is:
-
-    - VMI can collect some information for security analysis.
-
-  + Gap
-
-    - Openstack is lack of a module used to collect detail information of VM based on VMI technology.