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Initial version documentation
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vendored
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/node_modules
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/build
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/.aws-config.json
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html_docs
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docs/configuration.asciidoc
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docs/configuration.asciidoc
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[[configuration]]
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== Configuration Options
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=== Statistics exporting
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`marvel.agent.exporter.es.hosts`:: A lists of "hostname:port" combinations
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to whom statistics and events will be sent. The data will be intially sent to the first host in the list with a fail-over to the rest.
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Defaults to ["localhost:9200"]
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`marvel.agent.enabled`:: set this to `false` to disable all exporting of data.
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This is handy to set on a dedicated monitoring cluster which is used to
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recieve and analyze data from production.
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`marvel.agent.indices`:: controls which indices to export data for.
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Uses simple `test1,test2,test3` notation (or `_all` for all indices). It also support
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wildcards, for example: `test*`, and the ability to "add" (`+`) and "remove" (`-`),
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for example: `+test*,-test3`.
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Defaults to `*`
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`marvel.agent.exporter.es.index.timeformat`:: controls the time component in the index name to
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which data is exported. Defaults to `"YYYY.MM.dd"` (index name ex.: `".marvel-2014.01.28"`).
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Supports formatting as explained http://joda-time.sourceforge.net/api-release/org/joda/time/format/DateTimeFormat.html[here].
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=== Marvel indices
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Marvel stores it's data using time based indices. By default, Marvel generates
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an index per day, with one shard and one replica. We expect this to be a good
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default which will fit most use cases. You may need to change it for very big
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installations.
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==== The marvel index template
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Marvel uses an http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/indices-templates.html[index template]
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to set the settings for new indices created. You can change it by calling `GET _template/marvel` to get the standard one,
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change or add settings and update it using `PUT _template/marvel`. We recommend you only change the
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`settings` section as other changes are important for the correct operation of
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the dashboards.
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Here are the `settings` used by default:
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[source,json]
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----------------------------------
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{
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"template": ".marvel*",
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"settings": {
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"number_of_shards": 1,
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"number_of_replicas": 1,
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"analysis": {
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"analyzer": {
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"default": {
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"type": "standard",
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"stopwords": "_none_"
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}
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}
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},
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"marvel.index_format": 1
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}
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.....
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}
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----------------------------------
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=== Other relevant Elasticsearch settings
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Marvel relies on Elasticsearch's capability to automatically create indices when indexing documents. Some people like to disable this feature to better protect against mistakes in production clusters. To do so and still allow the creation of Marvel indices you set the following:
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[source,yaml]
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----------------------
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action.auto_create_index: .marvel-*
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----------------------
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For more information available http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/docs-index_.html#index-creation[here]
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docs/dashboards.asciidoc
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docs/dashboards.asciidoc
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== Marvel's Dashboards
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=== Overview Dashboard
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The overview dashboard is the Marvel’s main page. The dashboard displays the essentials metrics you need to know that your cluster is healthy. The dashboard also provides an overview of your nodes and indices, displayed in two clean tables along with the relevant key metrics. If some value needs your attention, it will be highlighted in yellow or red. The nodes and indices tables also serve as an entry point to more details on the Node Statistics and Index Statistics dashboards.
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IMAGE
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=== Node & Index Statistics
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The Node Statistics dashboard displays metric charts from the perspective of one or more nodes. Metrics include hardware level metrics (like load & CPU usage), process & JVM metrics (memory usage, GC), node level Elasticsearch metrics (field data usage, search requests rate & thread pool rejection).
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IMAGE
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The Index Statistics dashboard is very similar to the Node Satistics dashboard and shows you all the metrics from a perspective of one or more indices. The metrics are an per index cluster wide aggregation. For example, the store size chart shows you the total size of the index data across all the cluster
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IMAGE
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=== Sense
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Sense is a lightweight developer console. The console is handy when you want to make an extra API call to check something or perhaps tweak a setting. The developer console understands both JSON and the Elasticsearch API, offering suggestions and auto-completes. It is quite handy for prototyping queries, researching your data or any other administrative work with the API.
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IMAGE
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docs/index.asciidoc
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docs/index.asciidoc
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= Marvel Documentation
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== What is Marvel?
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Marvel is a management and monitoring product for Elasticsearch. Marvels aggregates cluster wide statistics and events and offers a single interface to view and analyze them. Marvel is free for development use but does require a license to run in production. For more details, please see the http://www.elasticsearch.com/marvel[Marvel product page].
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include::dashboards.asciidoc[]
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include::install.asciidoc[]
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include::configuration.asciidoc[]
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== System Requirements
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Elasticsearch:: 0.90.9 or above
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Browser:: The latest version of Chrome, Firefox or Safari is recommended. Internet Explorer 9 and above is also supported.
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docs/install.asciidoc
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== Installation
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Marvel is installed as an Elasticsearch plug-in. The plug-in must be installed
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on every node in the cluster. By default, the plug-in will store data in the
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same Elasticsearch cluster that it is monitoring. If you are monitoring a
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production cluster we recommend that you send this data to another cluster
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that will serve as a "monitoring cluster". This is better as it will help to
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prevent a problem in one cluster from impacting the other cluster. For
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example, when your production cluster is having trouble you would like to make
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sure you can view the Marvel data easily.
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=== Simple install
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This is simplest way to install and use Marvel. Marvel data will be stored on
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the same cluster as the one being monitored and you will be able to access the
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Marvel UI from every node. You have to repeat the bellow procedure on every
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node:
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1. From the Elasticsearch home directory, run:
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+
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[source,sh]
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----------------
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bin/plugin -i elasticsearch/marvel/latest
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----------------
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2. Restart your Elasticsearch node
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Once the plugin was installed on all nodes, you can access the Marvel UI by
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viewing http://any-server-in-cluster:9200/_plugin/marvel/ with any modern
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browser. If you're quick, it may take a minute for the initial data to appear.
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A couple of points to consider:
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* Since this requires to restart the nodes of your cluster, you might want to
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temporarily http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-cluster.html[disable allocations]
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* If you run your cluster using a non-standard port, you need to change the `marvel.agent.exporter.es.nosts` settings. See <<configuration>>.
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=== Installing with a secondary Monitoring Cluster
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First, prepare the cluster you would use to store and analyze Marvel's data (we'll call it the Monitoring Cluster). For this example, we will assume two hosts, es-mon-1 and es- mon-2, are in the monitoring cluster.
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==== Preparing the monitoring cluster
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For each node in the monitoring cluster:
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1. Edit Elasticsearch.yml and insert
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+
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[source,yaml]
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------------------------
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marvel.agent.enabled: false
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------------------------
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+
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to disable transmission of data from this cluster.
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2. Install the plug-in. From the Elasticsearch home directory run
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+
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[source,sh]
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----------------
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bin/plugin -i elasticsearch/marvel/latest
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----------------
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3. Restart Elasticsearch
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==== Installing marvel on the production cluster
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1. Edit Elasticsearch.yml and insert
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+
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[source,yaml]
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------------------------
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marvel.agent.es.exporter.hosts: ["es-mon-1:9200","es-mon-2:9200"]
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------------------------
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+
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This line adds two hosts of your monitoring cluster to receive the data, a primary and a backup.
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2. Install the plug-in. From the Elasticsearch home directory run
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+
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[source,sh]
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------------------------
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bin/plugin -i elasticsearch/marvel/latest
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------------------------
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3. Restart Elasticsearch
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Once the plugin was installed on all nodes, you can access the Marvel UI by viewing http://any-server-in-monitoring-cluster:9200/_plugin/marvel/ with any modern browser. If you're quick, it may take a minute or two for data to appear.
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*Note*: You may want to temporarily http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-cluster.html[disable allocation] before you do this to avoid unnecessary shard reallocations during the install
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