Visualize and Analyze Apache Geode Real-time and Historical Metrics Christian Tzolov Software Engineer, Spring Cloud ASF, Apache Committer, PMC member 

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Apache Geode / GemFire “… in-memory, distributed database with strong consistency built to support low latency transactional applications at extreme scale” 

Geode Metrics Geode Cluster Run-Time Statistics Historical Statistics Visualization (VSD) Monitoring, Visualization, Alerts (JMX) 

Geode Metrics Unified Geode Cluster Run-Time Statistics Historical Statistics Monitoring, Visualization, Alerts 

Monitor What? Cache Server Region A Region X Val Ke y v1 k1 v2 k2 … Region - consistent, distributed Map (key-value) dataset CacheServer – process managing Regions Client Locator Client –read and modify Region content Locator – track membership information 

Cache Server 1 Region A Region A’ Region B’ Region X’ Cache Server N Region A Region A’’’’ Region B’’’ Region X’’’ Cache Server 2 Region A Region A’’ Region B’’ Region X’’ Federated MBean Architecture Locator 1 Distributed System Distributed Region Member GemFire:type=Distributed, service=Region,name= GemFire:type=Distributed,service=System GemFire:type=Member, member= Notifications gemfire.distributedsystem.cache.member.departed gemfire.distributedsystem.cache.member.joined gemfire.distributedsystem.cache.region.created gemfire.distributedsystem.cache.region.closed https://gemfire.docs.pivotal.io/geode/managing/management/mbean_architecture.html network JMX Manager - Single-agent view of the Distributed System JMX Manager MBeanServer MBeanServer MBeanServer 

Geode JMX Metrics 

Geode Pulse •  Cluster View •  Member View •  Region View •  Alerts Widget https://gemfire.docs.pivotal.io/geode/tools_modules/pulse/pulse-views.html 

Beyond Pulse •  Extensibility •  Customized Views and Alerts •  Compare metrics between Members or Regions •  Integrate with 3rd party monitoring tools 

TSDB and Grafana Architecture JMX to TSDB Loader Grafana TSDB Geode Cluster JMX Manager 

Grafana Open platform for Analytics and Monitoring •  Data Sources •  Panels •  Dashboards 

Time Series Database (TSDB) •  Real-time process/store of time-series data •  Data is larger than memory •  Storage per data point efficiency •  Sequential, ordered per series reads •  Write mostly (95%) •  Data is larger than memory •  Storage efficiency - few bytes of storage per data point •  OSS TSDB: InfluxDB, Open TSDB, Prometheus, … https://en.wikipedia.org/wiki/Time_series_database 

JMX to InfluxDB Mapping + name + timestamp Measurement + name + value Field + name + value Tag (Indexed) (not-Indexed) {region : Zips} …. + avgBucketSize + entrySize + memberCount … MemberMBean + avgBucketSize + entrySize + memberCount … DistributedSystemMBean {region : Zips} …. + avgBucketSize + entrySize + memberCount … DistributedRegionMBean GemFire:service=Region,name=/Zips,type=Distributed Influx Data Model Geode MBean Model 

JMX to Grafana Geode Cluster JMX to Grafana Grafana InfluxDB JMX Manager java -jar ./jmx-to-grafana-0.0.2-SNAPSHOT.jar --mbeanHostName=localhost --mbeanPort=1099 --influxUrl=http://localhost:8086 --influxDatabaseName=GeodeJmx --cronExpression="0 0/1 * * * ?" docker run -d --name grafana -p 3000:3000 grafana/grafana docker run -d --name influxdb -p 8086:8086 influxdb 

JMX to Grafana Tookit https://github.com/tzolov/geode-dashboard 

Dashboard Library Cluster View Members View Combined Members View Region View 

Apache Geode Metrics Geode Cluster Run-Time Statistics Historical Statistics Monitoring, Visualization, Alerts 

Geode Statistics Archive •  Statistics Collected per Member •  Local Archive Files •  Build-in Statistics •  Runtime (peer per node, clients, data entities,…) •  Resources (memory, cpu, descriptors, system load,…) •  Operations Throughput (Cache, Disk,…) •  … •  Application-Defined Statistics http://gemfire.docs.pivotal.io/gemfire/tools_modules/vsd/vsd_useful_statistics.html 

Viewing Archived Statistics •  The Visual Statistics Display (VSD) •  Guide to Useful Statistics: http://gemfire.docs.pivotal.io/gemfire/ tools_modules/vsd/vsd_useful_statistics.html 

Geode Cluster Locator 1 CacheServer 1 CacheServer N … Statistics to Grafana Architecture Grafana InfluxDB A A A Statistics To Grafana 

Statistic to InfluxDB Mapping + name + timestamp Measurement + name + value Field + name + value Tag (Indexed) (not-Indexed) Influx Data Model Geode Statistic Archive + name + type + sampleCount Resource Instance Statistics Archive Instances * + descriptor.name + timestampls:long[] + rawSnapshot:double[] StatValue values * 

Geode Cluster Locator 1 CacheServer 1 CacheServer N … Statistics to Grafana Architecture Grafana InfluxDB A A A Statistics To Grafana java -jar ./statistics-to-grafana-0.0.2-SNAPSHOT.jar --influxUrl=http://localhost:8086 --influxDatabaseName=GeodeArchive --geodeMemberName=server1 --archiveFile=server1ArchiveFile.gfs statistic-sampling-enabled=true statistic-archive-file=myArchive.gfs archive-file-size-limit=100 archive-disk-space-limit=1000 

The Full Stack 

Next? 25 •  Micrometer- http://micrometer.io/ •  Grafana Geode Source Plugin (Geode SQL adapter) •  Add real-time metrics for AsyncListener, DistributedLock, Gateway •  Additional pre-build Dashboards