WIP: Monitoring guide
This commit adds Mirantis OpenStack Monitoring Guide structure. Co-Authored-By: Swann Croiset <swann@oopss.org> Co-Authored-By: Patrick Petit <ppetit@mirantis.com> Co-Authored-By: Nikita Konovalov <nkonovalov@mirantis.com> Co-Authored-By: Alexander Tivelkov <ativelkov@mirantis.com> Co-Authored-By: Alexander Adamov <aadamov@mirantis.com> Co-Authored-By: Maria Zlatkova <mzlatkova@mirantis.com> Co-Authored-By: Olena Logvinova <ologvinova@mirantis.com> Closes-Bug: #1414970 Change-Id: I420764863a393f0ccd759b9aa30ed9fc577152d4
This commit is contained in:
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@ -11,6 +11,7 @@ Documentation
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planning-guide
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user-guide
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operations
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monitoring-guide
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virtualbox
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reference-architecture
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terminology
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@ -0,0 +1,9 @@
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.. include:: /pages/monitoring-guide/introduction.rst
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.. include:: /pages/monitoring-guide/assumptions.rst
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.. include:: /pages/monitoring-guide/intended-audience.rst
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.. include:: /pages/monitoring-guide/document-scope.rst
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.. include:: /pages/monitoring-guide/common-monitoring-practices/common-monitoring-practices.rst
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.. include:: /pages/monitoring-guide/monitoring-activities-details/monitoring-activities-details.rst
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.. include:: /pages/monitoring-guide/storage-clusters/storage-clusters.rst
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.. include:: /pages/monitoring-guide/hardware-and-system-monitoring/hardware-and-system-monitoring.rst
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.. include:: /pages/monitoring-guide/appendix/appendix.rst
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@ -52,6 +52,11 @@ using Fuel.
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A collection of useful procedures for using and managing
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your Mirantis OpenStack environment.
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:ref:`monitoring-guide` `(pdf) <pdf/Mirantis-OpenStack-6.0-MonitoringGuide.pdf>`__
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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A general OpenStack monitoring strategy.
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:ref:`virtualbox` `(pdf) <pdf/Mirantis-OpenStack-6.0-Running-Mirantis-OpenStack-on-VirtualBox.pdf>`__
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.. index:: Monitoring Guide
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.. _monitoring-guide:
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================
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Monitoring Guide
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================
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.. contents:: :local:
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.. include:: /contents/contents-monitoring-guide.rst
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.. _mg-appendix:
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Appendix
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========
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We put additional materials in this appendix that are out of
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the scope but which could, nonetheless, be of interest.
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.. include:: /pages/monitoring-guide/appendix/virtual-machine-monitoring.rst
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.. include:: /pages/monitoring-guide/appendix/vm-network-traffic.rst
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.. _mg-virtual-machine-monitoring:
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Virtual Machine Monitoring
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--------------------------
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.. _mg-vm-network-traffic:
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VM Network Traffic
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------------------
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.. _mg-assumptions:
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Assumptions
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===========
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We assume that the reader is already familiar with the concepts, architecture
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principles, and day-to-day administration tasks of Mirantis OpenStack. It
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further assumes that you have deployed Mirantis OpenStack following the
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recommendations of :ref:`the Mirantis OpenStack Planning Guide<planning-guide>`
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with :ref:`high availability<ha-term>` support using Neutron with
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:ref:`VLAN<neutron-vlan-ovs-arch>` or :ref:`GRE<neutron-gre-ovs-arch>`
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networking segmentation.
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.. _mg-common-monitoring-practices:
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Common Monitoring Practices
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===========================
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This chapter describes the common monitoring practices we recommend
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that you to use to design and implement an effective monitoring solution
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for OpenStack.
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.. include:: /pages/monitoring-guide/common-monitoring-practices/monitoring-domains.rst
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.. include:: /pages/monitoring-guide/common-monitoring-practices/monitoring-activities.rst
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.. _mg-diagnosing-versus-alerting:
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Diagnosing versus Alerting
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++++++++++++++++++++++++++
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.. _mg-logs-indexing:
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Logs Indexing
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+++++++++++++
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.. _mg-logs-processing:
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Logs Processing
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+++++++++++++++
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.. _mg-metering:
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Metering
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++++++++
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.. _mg-common-monitoring-activities:
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Monitoring Activities
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---------------------
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As stated earlier, this document is not prescriptive of a particular
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monitoring system or solution. Instead, it strives to describe common
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monitoring practices with problem domains and activities to address them
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that are key to get clear operational insights in order to take actions
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when problems occur. In this chapter, we try to describe what those
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activities are as clearly as possible.
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.. include:: /pages/monitoring-guide/common-monitoring-practices/services-processes-cluster-checks.rst
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.. include:: /pages/monitoring-guide/common-monitoring-practices/metering.rst
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.. include:: /pages/monitoring-guide/common-monitoring-practices/logs-processing.rst
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.. include:: /pages/monitoring-guide/common-monitoring-practices/logs-indexing.rst
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.. include:: /pages/monitoring-guide/common-monitoring-practices/notifications-processing.rst
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.. include:: /pages/monitoring-guide/common-monitoring-practices/diagnosing-versus-alerting.rst
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.. include:: /pages/monitoring-guide/common-monitoring-practices/time-sync.rst
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.. _mg-monitoring-domains:
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Monitoring Domains
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------------------
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An effective monitoring solution is comprised of distinct activities
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aimed at addressing the different problem domains that the operations
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staff will have to handle. These activities are summarized below.
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Availability Monitoring
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Availability monitoring, in its broadest sense, is a monitoring activity
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that is responsible for ensuring that the resources for compute, storage,
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and networking, as well as the services mediating their access (via the
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service API endpoints), are effectively available for end-users to consume
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while meeting the performance requirements of the SLA. In terms of
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availability monitoring, we use relevant indicators (or metrics); they provide
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information on how many resources are currently available in the cloud
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infrastructure as well as the process checks ensuring that the services
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delivering the access are up and running. Those indicators are obtained
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from running synthetic transactions, parsing the logs, metrics collectors
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deployed throughout the system, and so forth.
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Performance Monitoring
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Performance monitoring is supposes measuring how fast a particular
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resource can be served by the cloud infrastructure in response to a user
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request. For example, measuring how much time it takes to create an
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instance or a volume. Key metrics for performance monitoring can be
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obtained not only from synthetic transactions simulating an end-user
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interaction with a service endpoint but also from analysing the logs,
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instrumenting the code, and extracting performance metrics from the
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OpenStack notifications.
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OpenStack performance and availability monitoring are the two main
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monitoring issues developed in this document since they directly
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relate to the SLA.
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Resource Usage Monitoring
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Resource usage monitoring is only partially addressed here. We view it as
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a derivative activity by which a cloud operator can retrieve how much
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resources were consumed by a particular user or tenant during a particular
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time period for chargeback. Resource usage monitoring supposes measuring
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consumable resources of the cloud via the APIs. Another key difference
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between resource usage monitoring and availability monitoring is that
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resource usage monitoring does not have to be performed in real-time.
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Readers interested in resource usage monitoring for OpenStack
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should take a look at the :ref:`Ceilometer<ceilometer-term>` project.
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Alerting
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Alerting is a process by which the monitoring system notifies the cloud
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operator about an undesirable situation. The situation is typically described
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in an alarm like manner, for example, when the value of a key indicator
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crosses a threshold or unexpectedly changes a value from OK to NOT OK.
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An unexpected change of state, if not the direct manifestation of a problem,
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is often a precursor of it. Besides, alerting should have the following properties:
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- Provide a comprehensive description of the problem.
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- Provide information about which service is affected.
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- Provide a severity level.
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- Provide the ability to be disabled to avoid false positives during
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maintenance.
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- Provide the ability to combine alarms to express more complex situations.
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- Provide the ability to refer to time-series statistics like median,
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standard deviation and percentiles.
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Furthermore, we recommend that the health status of any OpenStack service
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is expressed using three different values:
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- **Healthy** - when both the HA functions of the controller cluster are
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still being ensured and no critical errors are being reported by the
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monitoring system for a service.
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- **Degraded** - when one or more critical errors are reported by the
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monitoring system for a service but the HA functions of the controller
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cluster are still being ensured.
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- **Failed** - when both the HA functions of the controller cluster are
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not being ensured anymore and one or more critical errors are being
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reported by the monitoring system for a service.
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**A critical error should always be reported in an alert.**
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The immediacy of the operations staff’s response to an alert depends on
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the actual status of the HA cluster. It can be any of the following:
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- **Immediate** - when a service is failed. It is a critical situation
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and so, the alert should be sent to the operations staff for human
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intervention.
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- **Deferred** - when a service is degraded. While a degraded service
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may have a negative impact on the quality of service, the nominal
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function of the cloud service should continue to be ensured by the
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system and so, the handling of the alert could be safely prioritized
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through a ticketing system.
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Obviously, not all errors are critical. An effective monitoring solution
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should put a great deal of care at defining the proper level of alerting
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(smart alerting), in order to avoid flooding the operations staff with
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benign notifications that are not reflective of a critical situation.
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This document strives to provide some hints about how to set your alarms
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with threshold values and status checks but your mileage may vary depending
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on your particular OpenStack environment. :ref:`Rally<rally-term>` is a load
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generator for OpenStack that you could use to calibrate the alarms of your
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monitoring system.
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.. _mg-notifications-processing:
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OpenStack Notifications Processing
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++++++++++++++++++++++++++++++++++
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.. _mg-services-processes-cluster-checks:
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Services, Processes and Clusters Checks
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+++++++++++++++++++++++++++++++++++++++
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.. _mg-time-sync:
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Time synchronization
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++++++++++++++++++++
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.. _mg-corosync-pacemaker:
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Corosync/Pacemaker
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------------------
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.. _mg-document-scope:
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Document Scope
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==============
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This guide is about how to monitor an OpenStack cloud from the perspective
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of the operations staff with a focus on the infrastructure. As a result,
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this guide is not directly intended to serve the monitoring needs of a
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cloud user whether it has access to the administrator role or not because
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as a cloud user you do not have root access to the servers and host
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operating systems. The scope therefore includes some hardware monitoring
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through IPMI, monitoring of the host operating system, monitoring of the
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cloud management system and processes that are part of its ecosystem.
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The processes supporting the cloud management system are roughly of two kind:
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* The OpenStack service API endpoints, like *nova-api*, which receive the user
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requests.
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* The OpenStack service workers connected to the AMQP bus, like *nova-scheduler*,
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which process the user requests.
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The OpenStack services depend on a number of additional programs that are
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not part of the OpenStack code base itself but which nonetheless are
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critically important to monitor as we will see below. This includes but is
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not limited to Libvirt, :ref:`MySQL<mysql-term>`, :ref:`RabbitMQ<rabbitmq-term>`,
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:ref:`Memcached<memcached-term>`, :ref:`HAProxy<haproxy-term>`, :ref:`Corosync<corosync-term>`
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and :ref:`Pacemaker<pacemaker-term>`.
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The scope also includes the host operating systems, the servers and devices such
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as the disks and network interface cards. Some amount of hardware health
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checks via IPMI are performed to monitor the status of equipments such as the
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fans and CPU temperature in an attempt to help with anticipating hardware
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failures.
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The scope of this document does not include the monitoring of the end-user
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applications as well as the monitoring of the hardware equipments that are
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vendor-specific or too complex to be practically addressed in this document.
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This includes but is not limited to the following equipment categories.
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The network gears
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The monitoring of the network gears such as switches and routers is
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vendor-specific and too large to be addressed here.
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The storage gears
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The monitoring of the storage gears like SANs and NASs is vendor-specific
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and too large to be addressed here.
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.. _mg-ha-cluster:
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HA Cluster
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==========
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.. include:: /pages/monitoring-guide/corosync-pacemaker.rst
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.. _mg-disks-monitoring:
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Disks Monitoring
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----------------
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.. _mg-hardware-and-system-monitoring:
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Hardware and System Monitoring
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==============================
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.. include:: /pages/monitoring-guide/hardware-and-system-monitoring/ipmi.rst
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.. include:: /pages/monitoring-guide/hardware-and-system-monitoring/disks-monitoring.rst
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.. include:: /pages/monitoring-guide/hardware-and-system-monitoring/operating-system-monitoring.rst
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.. _mg-ipmi:
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IPMI
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----
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.. _mg-operating-system-monitoring:
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Operating System Monitoring
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---------------------------
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Host Monitoring
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+++++++++++++++
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Disk Usage Monitoring
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+++++++++++++++++++++
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Soft RAID Monitoring
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++++++++++++++++++++
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Filesystem Usage Monitoring
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+++++++++++++++++++++++++++
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CPU Usage Monitoring
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++++++++++++++++++++
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RAM Usage Monitoring
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++++++++++++++++++++
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Swap Usage Monitoring
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+++++++++++++++++++++
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Process Statistics Monitoring
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+++++++++++++++++++++++++++++
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Network Interface Card (NIC) Monitoring
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+++++++++++++++++++++++++++++++++++++++
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Firewall (iptables) Monitoring
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++++++++++++++++++++++++++++++
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.. _mg-intended-audience:
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Intended Audience
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=================
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The primary audience of this document are the architects and technical staff
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involved in the design and deployment of an OpenStack cloud. The other
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audiences are the members of the operations staff that are in charge of managing
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and maintaining the OpenStack cloud in a healthy state on a daily basis.
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This includes:
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Line of Business Owner
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The Line of Business Owner needs to know how "things" are running and if there
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are any problems that may affect the SLA. This person focuses on marketing and
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business, not IT, and, thus, is interested in top level indicators to know about
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services health.
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Operational support
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Provides support to customers encountering issues. Is generally organized with a
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service desk and two support levels for problem escalation. The support relies on
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monitoring solutions to perform diagnostics and also should benefit from preventive
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alerts.
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Subject Matter Expert
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Investigates and resolves a domain-specific problem. Validates the resolution.
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Uses the monitoring system to troubleshoot and observe the cloud infrastructure
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behaviour.
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.. _mg-introduction:
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Introduction
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============
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This document does not attempt to tout a particular solution or monitoring
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system for OpenStack. Instead, it strives to provide best practices and
|
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provide specific guidelines about how to monitor OpenStack effectively
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irrespectively of the technology being used. This includes specific examples
|
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about how to collect and process key metrics to increase your operational
|
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visibility, check various health indicators to detect critical failure
|
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conditions, index and search the logs for root cause analysis and
|
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troubleshooting. Also, it must be highlighted from the start that this
|
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document provides guidelines for monitoring the OpenStack **infrastructure**
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and host services. It is not a guide for the monitoring the virtual machines
|
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nor the applications running on top of them.
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The expected outcome is two-fold:
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* Gain insights into what is critically important to watch in OpenStack so that
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operators can be alerted in near real-time to anticipate and react to
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undesirable situations.
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* Provide a comprehensive set of guidelines to implement
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your own monitoring system. In that sense, this document can also be viewed as
|
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a specification you can use to implement your own solution using technologies
|
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like Zabbix or the LMA Toolchain that are provided as `Fuel plugins
|
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<https://software.mirantis.com/fuel-plugins/>`_ for Mirantis
|
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OpenStack 6.1 onward.
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In addition, we think that an effective monitoring solution for OpenStack should
|
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have the following main characteristics.
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* Provide near real-time insights and alerting.
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* Support discovery and configuration management automation so that the error
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prone manual setup can be completely avoided.
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* The monitoring system supports its own self-monitoring and high availability.
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.. _mg-ceilometer:
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Ceilometer
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----------
|
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@ -0,0 +1,4 @@
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.. _mg-cinder:
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|
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Cinder
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------
|
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@ -0,0 +1,4 @@
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.. _mg-dhcp-agent:
|
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DHCP agent
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++++++++++
|
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.. _mg-glance:
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Glance
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------
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|
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.. _mg-haproxy:
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HAProxy
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-------
|
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@ -0,0 +1,4 @@
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.. _mg-heat:
|
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Heat
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----
|
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@ -0,0 +1,4 @@
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.. _mg-horizon:
|
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Horizon
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-------
|
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@ -0,0 +1,4 @@
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.. _mg-keystone:
|
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Keystone
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--------
|
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@ -0,0 +1,4 @@
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.. _mg-libvirt:
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LibVirt
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-------
|
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@ -0,0 +1,4 @@
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.. _mg-memcached:
|
||||
|
||||
Memcached
|
||||
---------
|
|
@ -0,0 +1,21 @@
|
|||
.. _mg-monitoring-activities-details:
|
||||
|
||||
Monitoring Activities Details
|
||||
=============================
|
||||
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/keystone.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/nova.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/network.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/glance.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/cinder.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/horizon.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/heat.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/ceilometer.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/sahara.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/murano.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/libvirt.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/haproxy.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/rabbitmq.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/mysql.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/memcached.rst
|
||||
|
|
@ -0,0 +1,7 @@
|
|||
.. _mg-murano:
|
||||
|
||||
Murano
|
||||
------
|
||||
|
||||
Murano RabbitMQ instance
|
||||
++++++++++++++++++++++++
|
|
@ -0,0 +1,4 @@
|
|||
.. _mg-mysql:
|
||||
|
||||
MySQL
|
||||
-----
|
|
@ -0,0 +1,10 @@
|
|||
.. _mg-network:
|
||||
|
||||
Network
|
||||
-------
|
||||
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/neutron.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/dhcp-agent.rst
|
||||
.. include:: /pages/monitoring-guide/monitoring-activities-details/open-vswitch.rst
|
||||
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
.. _mg-neutron:
|
||||
|
||||
Neutron
|
||||
+++++++
|
|
@ -0,0 +1,4 @@
|
|||
.. _mg-nova:
|
||||
|
||||
Nova
|
||||
----
|
|
@ -0,0 +1,4 @@
|
|||
.. _mg-open-vswitch:
|
||||
|
||||
Open vSwitch
|
||||
++++++++++++
|
|
@ -0,0 +1,4 @@
|
|||
.. _mg-rabbitmq:
|
||||
|
||||
RabbitMQ
|
||||
--------
|
|
@ -0,0 +1,4 @@
|
|||
.. _mg-sahara:
|
||||
|
||||
Sahara
|
||||
------
|
|
@ -0,0 +1,4 @@
|
|||
.. _mg-ceph:
|
||||
|
||||
Ceph
|
||||
----
|
|
@ -0,0 +1,7 @@
|
|||
.. _mg-storage-clusters:
|
||||
|
||||
Storage clusters
|
||||
================
|
||||
|
||||
.. include:: /pages/monitoring-guide/storage-clusters/swift.rst
|
||||
.. include:: /pages/monitoring-guide/storage-clusters/ceph.rst
|
|
@ -0,0 +1,4 @@
|
|||
.. _mg-swift:
|
||||
|
||||
Swift
|
||||
-----
|
|
@ -21,6 +21,7 @@ pdf_documents = [
|
|||
('pdf/pdf_planning-guide', u'Mirantis-OpenStack-6.0-PlanningGuide', u'Planning Guide', u'2014, Mirantis Inc.'),
|
||||
('pdf/pdf_user', u'Mirantis-OpenStack-6.0-UserGuide', u'User Guide', u'2014, Mirantis Inc.'),
|
||||
('pdf/pdf_operations', u'Mirantis-OpenStack-6.0-OperationsGuide', u'Operations Guide', u'2014, Mirantis Inc.'),
|
||||
('pdf/pdf_monitoring-guide', u'Mirantis-OpenStack-6.0-MonitoringGuide', u'Monitoring Guide', u'2014, Mirantis Inc.'),
|
||||
('pdf/pdf_virtualbox', u'Mirantis-OpenStack-6.0-Running-Mirantis-OpenStack-on-VirtualBox', u'Running Mirantis OpenStack on VirtualBox', u'2014, Mirantis Inc.'),
|
||||
('pdf/pdf_reference', u'Mirantis-OpenStack-6.0-ReferenceArchitecture', u'Reference Architecture', u'2014, Mirantis Inc.'),
|
||||
('pdf/pdf_plugin-dev', u'Mirantis-OpenStack-6.0-FuelPluginGuide', u'Fuel Plugin Guide', u'2014, Mirantis Inc.'),
|
||||
|
|
|
@ -0,0 +1,32 @@
|
|||
.. header::
|
||||
|
||||
.. cssclass:: header-table
|
||||
|
||||
+-------------------------------------+-----------------------------------+
|
||||
| Mirantis OpenStack v6.1 | .. cssclass:: right|
|
||||
| | |
|
||||
| Monitoring Guide | ###Section### |
|
||||
+-------------------------------------+-----------------------------------+
|
||||
|
||||
.. footer::
|
||||
|
||||
.. cssclass:: footer-table
|
||||
|
||||
+--------------------------+----------------------+
|
||||
| | .. cssclass:: right|
|
||||
| | |
|
||||
| ©2014, Mirantis Inc. | Page ###Page### |
|
||||
+--------------------------+----------------------+
|
||||
|
||||
.. raw:: pdf
|
||||
|
||||
PageBreak oneColumn
|
||||
|
||||
.. toctree::
|
||||
|
||||
.. include:: /pages/preface/preface.rst
|
||||
|
||||
.. _monitoring-guide:
|
||||
|
||||
.. include:: /contents/contents-monitoring-guide.rst
|
||||
|
|
@ -5,7 +5,7 @@
|
|||
+-------------------------------------+-----------------------------------+
|
||||
| Mirantis OpenStack v6.1 | .. cssclass:: right|
|
||||
| | |
|
||||
| Operations Guide | ###Section### |
|
||||
| Monitoring Guide | ###Section### |
|
||||
+-------------------------------------+-----------------------------------+
|
||||
|
||||
.. footer::
|
||||
|
|
Loading…
Reference in New Issue