Hi, I am trying to experiment with exposing Geode stats to Grafana <http://grafana.org/> using a the time-series database InfluxDB <https://www.influxdata.com/time-series-platform/influxdb/>.
Facing the below exception when I start the server after enabling stats and including influxDB java client <https://github.com/influxdata/influxdb-java> in the project. I am new to gradle (and also the above technologies ! ), not sure if I am doing something wrong here w.r.t including the influxdb-java client. When I enable statistics, the server doesn't start(the .... after the start server command doesn't seem to stop), and I see the below exception in the server logs [warning 2016/09/26 17:47:45.408 EDT geode-server1 <main> tid=0x1] Statistics sampler is not available *java.lang.IllegalStateException: Statistics sampler is not available* at org.apache.geode.internal.statistics.SampleCollector.getStatMonitorHandler(SampleCollector.java:127) at org.apache.geode.internal.statistics.StatisticsMonitor.getStatMonitorHandler(StatisticsMonitor.java:139) at org.apache.geode.internal.statistics.StatisticsMonitor.addListener(StatisticsMonitor.java:83) at org.apache.geode.management.internal.beans.stats.MBeanStatsMonitor.addStatisticsToMonitor(MBeanStatsMonitor.java:59) at org.apache.geode.management.internal.beans.MemberMBeanBridge.addCacheStats(MemberMBeanBridge.java:470) at org.apache.geode.management.internal.beans.MemberMBeanBridge.init(MemberMBeanBridge.java:420) at org.apache.geode.management.internal.beans.ManagementAdapter.handleCacheCreation(ManagementAdapter.java:161) at org.apache.geode.management.internal.beans.ManagementListener.handleEvent(ManagementListener.java:119) at org.apache.geode.distributed.internal.InternalDistributedSystem.notifyResourceEventListeners(InternalDistributedSystem.java:2077) at org.apache.geode.distributed.internal.InternalDistributedSystem.handleResourceEvent(InternalDistributedSystem.java:525) at org.apache.geode.internal.cache.GemFireCacheImpl.initialize(GemFireCacheImpl.java:1113) at org.apache.geode.internal.cache.GemFireCacheImpl.basicCreate(GemFireCacheImpl.java:765) at org.apache.geode.internal.cache.GemFireCacheImpl.create(GemFireCacheImpl.java:752) at org.apache.geode.cache.CacheFactory.create(CacheFactory.java:181) at org.apache.geode.cache.CacheFactory.create(CacheFactory.java:231) at org.apache.geode.distributed.internal.DefaultServerLauncherCacheProvider.createCache(DefaultServerLauncherCacheProvider.java:55) at org.apache.geode.distributed.ServerLauncher.createCache(ServerLauncher.java:783) at org.apache.geode.distributed.ServerLauncher.start(ServerLauncher.java:703) at org.apache.geode.distributed.ServerLauncher.run(ServerLauncher.java:633) at org.apache.geode.distributed.ServerLauncher.main(ServerLauncher.java:184) For now I have changed the method (private writeSample in StatArchiveWriter.java) to write to influxDB. *Geode Properties:* statistic-sampling-enabled=true statistic-archive-file=statsFile.gfs When I remove the above properties from the properties file the server starts up fine, which makes me think that my gradle changes should be fine. *Gradle changes:* 1. I have included the below line in geode-core/build.gradle <https://github.com/apache/incubator-geode/blob/develop/geode-core/build.gradle#L39> dependencies. compile 'org.influxdb:influxdb-java:' + project.'influxdb-client-version' 2. I have included the dependency version here https://github.com/apache/incubator-geode/blob/develop/gradle/dependency-versions.properties 3. Have added the influxdb jar name here https://github.com/apache/incubator-geode/blob/develop/geode-assembly/src/test/resources/expected_jars.txt Please let me know why one would see exception "java.lang.IllegalStateException: Statistics sampler is not available". Any feedback on the approach/usefulness of using InfluxDB-Grafana for geode stats is appreciated. Thanks, Srikanth Manvi
