Readme for mongodb

plugins/inputs/mongodb/README.md

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+# Telegraf plugin: Jolokia
+
+#### Configuration
+
+```toml
+[[inputs.jolokia]]
+  ## This is the context root used to compose the jolokia url
+  context = "/jolokia/read"
+
+  ## List of servers exposing jolokia read service
+  [[inputs.jolokia.servers]]
+    name = "stable"
+    host = "192.168.103.2"
+    port = "8180"
+    # username = "myuser"
+    # password = "mypassword"
+
+  ## List of metrics collected on above servers
+  ## Each metric consists in a name, a jmx path and either
+  ## a pass or drop slice attribute.
+  ## This collect all heap memory usage metrics.
+  [[inputs.jolokia.metrics]]
+    name = "heap_memory_usage"
+    jmx  = "/java.lang:type=Memory/HeapMemoryUsage"
+    
+  ## This collect thread counts metrics.
+  [[inputs.jolokia.metrics]]
+    name = "thread_count"
+    jmx  = "/java.lang:type=Threading/TotalStartedThreadCount,ThreadCount,DaemonThreadCount,PeakThreadCount"
+ 
+  ## This collect number of class loaded/unloaded counts metrics.
+  [[inputs.jolokia.metrics]]
+    name = "class_count"
+    jmx  = "/java.lang:type=ClassLoading/LoadedClassCount,UnloadedClassCount,TotalLoadedClassCount"
+```
+
+#### Description
+
+The Jolokia plugin collects JVM metrics exposed as MBean's attributes through jolokia REST endpoint. All metrics
+are collected for each server configured.
+
+See: https://jolokia.org/
+
+# Measurements:
+Jolokia plugin produces one measure for each metric configured, adding Server's `name`, `host` and `port` as tags.