转载自：https://cloud.tencent.com/developer/article/1655489
注意：上半截跟下半截是采用的不同的方式，建议采用下半截的方式，上半截的方式据说获取不到数据，具体效果有待测试验证
安装监控插件
wget https://github.com/justwatchcom/elasticsearch_exporter/releases/download/v1.0.4rc1/elasticsearch_exporter-1.0.4rc1.linux-amd64.tar.gz
tar -zxvf elasticsearch_exporter-1.0.4rc1.linux-amd64.tar.gz
cd elasticsearch_exporter-1.0.4rc1.linux-amd64/
nohup ./elasticsearch_exporter --web.listen-address ":9109" --es.uri http://192.168.50.153:9200 &
完整参数启动方式：
nohup ./elasticsearch_exporter --es.all --es.indices --es.cluster_settings --es.indices_settings --es.shards --es.snapshots --es.timeout=10s --web.listen-address=":9114" --web.telemetry-path="/metrics" --es.uri http://192.168.50.153:9200 &
参数说明：
--es.uri 默认http://localhost:9200，连接到的Elasticsearch节点的地址（主机和端口）。 这可以是本地节点（例如localhost：9200），也可以是远程 Elasticsearch服务器的地址
--es.all 默认flase，如果为true，则查询群集中所有节点的统计信息，而不仅仅是查询我们连接到的节点。
--es.cluster_settings 默认flase，如果为true，请在统计信息中查询集群设置
--es.indices 默认flase，如果为true，则查询统计信息以获取集群中的所有索引。
--es.indices_settings 默认flase，如果为true，则查询集群中所有索引的设置统计信息。
--es.shards 默认flase，如果为true，则查询集群中所有索引的统计信息，包括分片级统计信息（意味着es.indices = true）。
--es.snapshots 默认flase，如果为true，则查询集群快照的统计信息。
开机自启
cat /etc/systemd/system/elasticsearch_exporter.service
Description=elasticsearch_exporter
After=local-fs.target network-online.target network.target
Wants=local-fs.target network-online.target network.target
[Service]
ExecStart=/usr/local/elasticsearch_exporter/elasticsearch_exporter
--es.all --es.indices
--es.cluster_settings
--es.indices_settings
--es.shards --es.snapshots
--web.listen-address ":9114"
--es.timeout 20s
--es.uri http://172.20.32.218:9200
Restart=on-failure
[Install]
WantedBy=multi-user.target
systemctl daemon-reload
systemctl enable elasticsearch_exporter
systemctl start elasticsearch_exporter
systemctl status elasticsearch_exporter
启动成功后，可以访问 http://192.168.50.153:9109/metrics ，看抓取的信息
监控图表
| 指标 | 解析 |
|---|---|
| ##搜索和索引性能 | |
| elasticsearch_indices_search_query_total | 查询总数 吞吐量 |
| elasticsearch_indices_search_query_time_seconds | 查询总时间 性能 |
| elasticsearch_indices_search_fetch_total | 提取总数 |
| elasticsearch_indices_search_fetch_time_seconds | 花费在提取上的总时间 |
| ##索引请求 | |
| elasticsearch_indices_indexing_index_total | 索引的文件总数 |
| elasticsearch_indices_indexing_index_time_seconds_total | 索引文档总时间 |
| elasticsearch_indices_indexing_delete_total | 索引的文件删除总数 |
| elasticsearch_indices_indexing_delete_time_seconds_total | 索引的文件删除总时间 |
| elasticsearch_indices_refresh_total | 索引刷新总数 |
| elasticsearch_indices_refresh_time_seconds_total | 刷新指数的总时间 |
| elasticsearch_indices_flush_total | 索引刷新总数到磁盘 |
| elasticsearch_indices_flush_time_seconds | 将索引刷新到磁盘上的总时间 累计flush时间 |
| ##JVM内存和垃圾回收 | |
| elasticsearch_jvm_gc_collection_seconds_sum | GC run time in seconds垃圾回收时间 |
| elasticsearch_jvm_gc_collection_seconds_count | Count of JVM GC runs垃圾搜集数 |
| elasticsearch_jvm_memory_committed_bytes | JVM memory currently committed by area最大使用内存限制 |
| elasticsearch_jvm_memory_max_bytes | 配置的最大jvm值 |
| elasticsearch_jvm_memory_pool_max_bytes | JVM内存最大池数 |
| elasticsearch_jvm_memory_pool_peak_max_bytes | 最大的JVM内存峰值 |
| elasticsearch_jvm_memory_pool_peak_used_bytes | 池使用的JVM内存峰值 |
| elasticsearch_jvm_memory_pool_used_bytes | 目前使用的JVM内存池 |
| elasticsearch_jvm_memory_used_bytes | JVM memory currently used by area 内存使用量 |
| ##集群健康和节点可用性 | |
| elasticsearch_cluster_health_status | 集群状态，green（ 所有的主分片和副本分片都正常运行）、yellow（所有的主分片都正常运行，但不是所有的副本分片都正常运行）red（有主分片没能正常运行）值为1的即为对应状态 |
| elasticsearch_cluster_health_number_of_data_nodes | node节点的数量 |
| elasticsearch_cluster_health_number_of_in_flight_fetch | 正在进行的碎片信息请求的数量 |
| elasticsearch_cluster_health_number_of_nodes | 集群内所有的节点 |
| elasticsearch_cluster_health_number_of_pending_tasks | 尚未执行的集群级别更改 |
| elasticsearch_cluster_health_initializing_shards | 正在初始化的分片数 |
| elasticsearch_cluster_health_unassigned_shards | 未分配分片数 |
| elasticsearch_cluster_health_active_primary_shards | 活跃的主分片总数 |
| elasticsearch_cluster_health_active_shards | 活跃的分片总数（包括复制分片） |
| elasticsearch_cluster_health_relocating_shards | 当前节点正在迁移到其他节点的分片数量，通常为0，集群中有节点新加入或者退出时该值会增加 |
| ##资源饱和度 | |
| elasticsearch_thread_pool_completed_count | 线程池操作完成（bulk、index、search、force_merge） |
| elasticsearch_thread_pool_active_count | 线程池线程活动（bulk、index、search、force_merge） |
| elasticsearch_thread_pool_largest_count | 线程池最大线程数（bulk、index、search、force_merge） |
| elasticsearch_thread_pool_queue_count | 线程池中的排队线程数（bulk、index、search、force_merge） |
| elasticsearch_thread_pool_rejected_count | 线程池的被拒绝线程数（bulk、index、search、force_merge） |
| elasticsearch_indices_fielddata_memory_size_bytes | fielddata缓存的大小（字节） |
| elasticsearch_indices_fielddata_evictions | 来自fielddata缓存的驱逐次数 |
| elasticsearch_indices_filter_cache_evictions | 来自过滤器缓存的驱逐次数（仅版本2.x） |
| elasticsearch_indices_filter_cache_memory_size_bytes | 过滤器高速缓存的大小（字节）（仅版本2.x） |
| elasticsearch_cluster_health_number_of_pending_tasks | 待处理任务数 |
| elasticsearch_indices_get_time_seconds | |
| elasticsearch_indices_get_missing_total | 丢失的文件的GET请求总数 |
| elasticsearch_indices_get_missing_time_seconds | 花费在文档丢失的GET请求上的总时间 |
| elasticsearch_indices_get_exists_time_seconds | |
| elasticsearch_indices_get_exists_total | |
| elasticsearch_indices_get_total | |
| ##主机级别的系统和网络指标 | |
| elasticsearch_process_cpu_percent | Percent CPU used by process CPU使用率 |
| elasticsearch_filesystem_data_free_bytes | Free space on block device in bytes 磁盘可用空间 |
| elasticsearch_process_open_files_count | Open file descriptors ES进程打开的文件描述符 |
| elasticsearch_transport_rx_packets_total | Count of packets receivedES节点之间网络入流量 |
| elasticsearch_transport_tx_packets_total | Count of packets sentES节点之间网络出流量 |
prometheus配置
- job_name: 'elasticsearch'
scrape_interval: 60s
scrape_timeout: 30s
metrics_path: "/metrics"
static_configs:
- targets:
- '192.168.50.153:9109'
labels:
service: elasticsearch
relabel_configs:
- source_labels: [__address__]
regex: '(.*):9109'
target_label: 'instance'
replacement: '$1'
- source_labels: [__address__]
regex: '.*.(.*).lan.*'
target_label: 'environment'
replacement: '$1'
之后运行重读prometheus配置命令
./reload-prometheus.sh
grafana模板
https://grafana.com/dashboards/2322
报警配置
groups:
- name: elasticsearchStatsAlert
rules:
- alert: Elastic_Cluster_Health_RED
expr: elasticsearch_cluster_health_status{color="red"}==1
for: 1m
labels:
severity: critical
annotations:
summary: "Instance {{ $labels.instance }}: not all primary and replica shards are allocated in elasticsearch cluster {{ $labels.cluster }}"
description: "Instance {{ $labels.instance }}: not all primary and replica shards are allocated in elasticsearch cluster {{ $labels.cluster }}."
- alert: Elastic_Cluster_Health_Yellow
expr: elasticsearch_cluster_health_status{color="yellow"}==1
for: 1m
labels:
severity: critical
annotations:
summary: " Instance {{ $labels.instance }}: not all primary and replica shards are allocated in elasticsearch cluster {{ $labels.cluster }}"
description: "Instance {{ $labels.instance }}: not all primary and replica shards are allocated in elasticsearch cluster {{ $labels.cluster }}."
- alert: Elasticsearch_JVM_Heap_Too_High
expr: elasticsearch_jvm_memory_used_bytes{area="heap"} / elasticsearch_jvm_memory_max_bytes{area="heap"} > 0.8
for: 1m
labels:
severity: critical
annotations:
summary: "ElasticSearch node {{ $labels.instance }} heap usage is high "
description: "The heap in {{ $labels.instance }} is over 80% for 15m."
- alert: Elasticsearch_health_up
expr: elasticsearch_cluster_health_up !=1
for: 1m
labels:
severity: critical
annotations:
summary: " ElasticSearch node: {{ $labels.instance }} last scrape of the ElasticSearch cluster health failed"
description: "ElasticSearch node: {{ $labels.instance }} last scrape of the ElasticSearch cluster health failed"
- alert: Elasticsearch_Too_Few_Nodes_Running
expr: elasticsearch_cluster_health_number_of_nodes < 12
for: 1m
labels:
severity: critical
annotations:
summary: "There are only {{$value}} < 12 ElasticSearch nodes running "
description: "lasticSearch running on less than 12 nodes(total 14)"
- alert: Elasticsearch_Count_of_JVM_GC_Runs
expr: rate(elasticsearch_jvm_gc_collection_seconds_count{}[5m])>5
for: 1m
labels:
severity: critical
annotations:
summary: "ElasticSearch node {{ $labels.instance }}: Count of JVM GC runs > 5 per sec and has a value of {{ $value }} "
description: "ElasticSearch node {{ $labels.instance }}: Count of JVM GC runs > 5 per sec and has a value of {{ $value }}"
- alert: Elasticsearch_GC_Run_Time
expr: rate(elasticsearch_jvm_gc_collection_seconds_sum[5m])>0.3
for: 1m
labels:
severity: critical
annotations:
summary: " ElasticSearch node {{ $labels.instance }}: GC run time in seconds > 0.3 sec and has a value of {{ $value }}"
description: "ElasticSearch node {{ $labels.instance }}: GC run time in seconds > 0.3 sec and has a value of {{ $value }}"
- alert: Elasticsearch_json_parse_failures
expr: elasticsearch_cluster_health_json_parse_failures>0
for: 1m
labels:
severity: critical
annotations:
summary: " ElasticSearch node {{ $labels.instance }}: json parse failures > 0 and has a value of {{ $value }}"
description: "ElasticSearch node {{ $labels.instance }}: json parse failures > 0 and has a value of {{ $value }}"
- alert: Elasticsearch_breakers_tripped
expr: rate(elasticsearch_breakers_tripped{}[5m])>0
for: 1m
labels:
severity: critical
annotations:
summary: " ElasticSearch node {{ $labels.instance }}: breakers tripped > 0 and has a value of {{ $value }}"
description: "ElasticSearch node {{ $labels.instance }}: breakers tripped > 0 and has a value of {{ $value }}"
- alert: Elasticsearch_health_timed_out
expr: elasticsearch_cluster_health_timed_out>0
for: 1m
labels:
severity: critical
annotations:
summary: " ElasticSearch node {{ $labels.instance }}: Number of cluster health checks timed out > 0 and has a value of {{ $value }}"
description: "ElasticSearch node {{ $labels.instance }}: Number of cluster health checks timed out > 0 and has a value of {{ $value }}"
=上半截和下半截分隔线=============================================
=上半截和下半截分隔线=============================================
=上半截和下半截分隔线=============================================
elasticsearch-7.x监控
Since Elasticsearch 7.0.0 : ./bin/elasticsearch-plugin install -b https://github.com/vvanholl/elasticsearch-prometheus-exporter/releases/download/7.2.1.0/prometheus-exporter-7.2.1.0.zip
Since Elasticsearch 6.0.0 : ./bin/elasticsearch-plugin install -b https://github.com/vvanholl/elasticsearch-prometheus-exporter/releases/download/6.8.0.0/prometheus-exporter-6.8.0.0.zip
On Elasticsearch 5.x.x : ./bin/elasticsearch-plugin install -b https://github.com/vvanholl/elasticsearch-prometheus-exporter/releases/download/5.6.16.0/elasticsearch-prometheus-exporter-5.6.16.0.zip
On old 2.x.x versions : ./bin/plugin install https://github.com/vvanholl/elasticsearch-prometheus-exporter/releases/download/2.4.1.0/elasticsearch-prometheus-exporter-2.4.1.0.zip
Do not forget to restart the node after the installation!
Note that the plugin needs the following special permissions:
java.lang.RuntimePermission accessClassInPackage.sun.misc
java.lang.RuntimePermission accessDeclaredMembers
java.lang.reflect.ReflectPermission suppressAccessChecks
If you have a lot of indices and think this data is irrelevant, you can disable in the main configuration file:
prometheus.indices: false
To disable exporting cluster settings use:
prometheus.cluster.settings: false
Uninstall
Since Elasticsearch 6.0.0: ./bin/elasticsearch-plugin remove prometheus-exporter
On Elasticsearch 5.x.x: ./bin/elasticsearch-plugin remove prometheus-exporter
On old 2.x.x versions: ./bin/plugin remove prometheus-exporter
prometheus配置
- job_name: elasticsearch
scrape_interval: 10s
metrics_path: "/_prometheus/metrics"
static_configs:
- targets:
- node1:9200
- node2:9200
- node3:9200
带账号密码：
- job_name: 'elastic-cluster'
scrape_interval: 10s
metrics_path: '/_prometheus/metrics'
static_configs:
- targets:
- 'node1:9200'
- 'node2:9200'
- 'node3:9200'
basic_auth:
username: 'elastic'
password: 'elastic'