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--- toolsandtechnologies:jmx_prometheus_exporter [2017/10/09 15:05] – created ekenny
+++ toolsandtechnologies:jmx_prometheus_exporter [2021/06/25 10:09] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+====== JMX Prometheus Exporter Set Up ======
+Download the jmx_prometheus_javaagent.jar.
+   * Available at : [[https://github.com/prometheus/jmx_exporter]]
+   * Move the downloaded jar to a directory on the handler running the application you wish to monitor.
+   * In same directory create a config.yaml file. (Basic example config shown below)
+<code>
+ssl: false
+lowercaseOutputName: false
+lowercaseOutputLabelNames: false
+whitelistObjectNames: ["org.apache.cassandra.metrics:*"]
+blacklistObjectNames: ["org.apache.cassandra.metrics:type=ColumnFamily,*"]
+</code>
+   * vi into the startup.sh file for the application you wish to monitor.
+   * Add the following lines inside the JAVA_OPTS.
+<code>
+-javaagent:/PATH/TO/JAR/jmx_prometheus_javaagent-0.10.jar=PORTNUMBER:/PATH/TO/CONFIG/config.yaml \
+-Dcom.sun.management.jmxremote=true \
+-Dcom.sun.management.jmxremote.ssl=false \
+</code>
+   * Replace the paths to point to the jar and the config file for the exporter.
+   * Replace PORTNUMBER with the port number you want your endpoint on.
+   * Save and quit.
+   * To start the exporter requires an application restart.
+   * To verify the metrics are exposed you can view them in the browser or on the command line of the app handler:
+     * http://hostname:portnumber
+     * curl localhost:portnumber
+   * Following this you should see output similar to below.
+<code>
+# HELP jmx_config_reload_failure_total Number of times configuration have failed to be reloaded.
+# TYPE jmx_config_reload_failure_total counter
+jmx_config_reload_failure_total 0.0
+# HELP jvm_memory_bytes_used Used bytes of a given JVM memory area.
+# TYPE jvm_memory_bytes_used gauge
+jvm_memory_bytes_used{area="heap",} 5.88200304E8
+jvm_memory_bytes_used{area="nonheap",} 1.00708664E8
+# HELP jvm_memory_bytes_committed Committed (bytes) of a given JVM memory area.
+# TYPE jvm_memory_bytes_committed gauge
+jvm_memory_bytes_committed{area="heap",} 2.669674496E9
+jvm_memory_bytes_committed{area="nonheap",} 2.8246016E8
+# HELP jvm_memory_bytes_max Max (bytes) of a given JVM memory area.
+# TYPE jvm_memory_bytes_max gauge
+jvm_memory_bytes_max{area="heap",} 2.669674496E9
+jvm_memory_bytes_max{area="nonheap",} 3.18767104E8
+# HELP jvm_memory_pool_bytes_used Used bytes of a given JVM memory pool.
+# TYPE jvm_memory_pool_bytes_used gauge
+jvm_memory_pool_bytes_used{pool="Code Cache",} 1.3843776E7
+jvm_memory_pool_bytes_used{pool="PS Eden Space",} 4.35325472E8
+jvm_memory_pool_bytes_used{pool="PS Survivor Space",} 1769472.0
+jvm_memory_pool_bytes_used{pool="PS Old Gen",} 1.5110536E8
+jvm_memory_pool_bytes_used{pool="PS Perm Gen",} 8.6864888E7
+# HELP jvm_memory_pool_bytes_committed Committed bytes of a given JVM memory pool.
+# TYPE jvm_memory_pool_bytes_committed gauge
+jvm_memory_pool_bytes_committed{pool="Code Cache",} 1.4024704E7
+jvm_memory_pool_bytes_committed{pool="PS Eden Space",} 8.85522432E8
+jvm_memory_pool_bytes_committed{pool="PS Survivor Space",} 2621440.0
+jvm_memory_pool_bytes_committed{pool="PS Old Gen",} 1.781530624E9
+jvm_memory_pool_bytes_committed{pool="PS Perm Gen",} 2.68435456E8
+# HELP jvm_memory_pool_bytes_max Max bytes of a given JVM memory pool.
+# TYPE jvm_memory_pool_bytes_max gauge
+jvm_memory_pool_bytes_max{pool="Code Cache",} 5.0331648E7
+jvm_memory_pool_bytes_max{pool="PS Eden Space",} 8.85522432E8
+jvm_memory_pool_bytes_max{pool="PS Survivor Space",} 2621440.0
+jvm_memory_pool_bytes_max{pool="PS Old Gen",} 1.781530624E9
+jvm_memory_pool_bytes_max{pool="PS Perm Gen",} 2.68435456E8
+# HELP jvm_classes_loaded The number of classes that are currently loaded in the JVM
+# TYPE jvm_classes_loaded gauge
+jvm_classes_loaded 13164.0
+# HELP jvm_classes_loaded_total The total number of classes that have been loaded since the JVM has started execution
+# TYPE jvm_classes_loaded_total counter
+jvm_classes_loaded_total 13957.0
+# HELP jvm_classes_unloaded_total The total number of classes that have been unloaded since the JVM has started execution
+# TYPE jvm_classes_unloaded_total counter
+jvm_classes_unloaded_total 793.0
+# HELP jmx_scrape_duration_seconds Time this JMX scrape took, in seconds.
+# TYPE jmx_scrape_duration_seconds gauge
+jmx_scrape_duration_seconds 6.1745E-5
+# HELP jmx_scrape_error Non-zero if this scrape failed.
+# TYPE jmx_scrape_error gauge
+jmx_scrape_error 0.0
+# HELP process_cpu_seconds_total Total user and system CPU time spent in seconds.
+# TYPE process_cpu_seconds_total counter
+process_cpu_seconds_total 1308.58
+# HELP process_start_time_seconds Start time of the process since unix epoch in seconds.
+# TYPE process_start_time_seconds gauge
+process_start_time_seconds 1.507297514844E9
+# HELP process_open_fds Number of open file descriptors.
+# TYPE process_open_fds gauge
+process_open_fds 61.0
+# HELP process_max_fds Maximum number of open file descriptors.
+# TYPE process_max_fds gauge
+process_max_fds 4096.0
+# HELP process_virtual_memory_bytes Virtual memory size in bytes.
+# TYPE process_virtual_memory_bytes gauge
+process_virtual_memory_bytes 1.1074588672E10
+# HELP process_resident_memory_bytes Resident memory size in bytes.
+# TYPE process_resident_memory_bytes gauge
+process_resident_memory_bytes 1.434279936E9
+# HELP jmx_config_reload_success_total Number of times configuration have successfully been reloaded.
+# TYPE jmx_config_reload_success_total counter
+jmx_config_reload_success_total 0.0
+# HELP jvm_gc_collection_seconds Time spent in a given JVM garbage collector in seconds.
+# TYPE jvm_gc_collection_seconds summary
+jvm_gc_collection_seconds_count{gc="PS Scavenge",} 233.0
+jvm_gc_collection_seconds_sum{gc="PS Scavenge",} 2.566
+jvm_gc_collection_seconds_count{gc="PS MarkSweep",} 72.0
+jvm_gc_collection_seconds_sum{gc="PS MarkSweep",} 15.335
+# HELP jvm_threads_current Current thread count of a JVM
+# TYPE jvm_threads_current gauge
+jvm_threads_current 95.0
+# HELP jvm_threads_daemon Daemon thread count of a JVM
+# TYPE jvm_threads_daemon gauge
+jvm_threads_daemon 72.0
+# HELP jvm_threads_peak Peak thread count of a JVM
+# TYPE jvm_threads_peak gauge
+jvm_threads_peak 96.0
+# HELP jvm_threads_started_total Started thread count of a JVM
+# TYPE jvm_threads_started_total counter
+jvm_threads_started_total 967.0
+# HELP jvm_threads_deadlocked Cycles of JVM-threads that are in deadlock waiting to acquire object monitors or ownable synchronizers
+# TYPE jvm_threads_deadlocked gauge
+jvm_threads_deadlocked 0.0
+# HELP jvm_threads_deadlocked_monitor Cycles of JVM-threads that are in deadlock waiting to acquire object monitors
+# TYPE jvm_threads_deadlocked_monitor gauge
+jvm_threads_deadlocked_monitor 0.0
+# HELP jvm_info JVM version info
+# TYPE jvm_info gauge
+jvm_info{version="1.7.0_80-b15",vendor="Oracle Corporation",} 1.0
+</code>
+   * vi into your prometheus.yml file
+   * Under "scrape configs" add your new target
+<code>
+  - job_name: 'NocPortal'
+    # metrics_path defaults to '/metrics'
+    # scheme defaults to 'http'.
+    static_configs:
+      - targets: ['HOSTNAME:PORTNUMBER']
+</code>
+   * Replace 'HOSTNAME' and 'PORTNUMBER' with the appropriate hostname and port number you selected for the agent.
+   * Save and quit
+   * Start prometheus
+   * Prometheus config can also be refreshed in stead of restarting - •	curl –X POST http://localhost:9090/-/reload
+   * In the prometheus UI select the "Status" dropdown from the navbar, then "Targets".
+   * You should see your target showing as "UP" similar to below
+{{ :toolsandtechnologies:target_up.png |}}

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