Monitoring Distributed Systems in Real-time with Riemann and Cassandra Presentation.pdf

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1、OSCONReal-timeMonitoringwithRiemannPatriciaGorla@patriciagorlaCassandraConsultantwww.thelastpickle.comAboutUs•WorkwithclientstodeliverandimproveApacheCassandraservices•ApacheCassandracommitter,DatastaxMVP,Hectormaintainer,ApacheUsergridcommitter•BasedinNewZealand

2、&USAOverviewSettingupRiemannSimpleMonitoringAggregateMonitoringMonitoringaclusterdatabaseCompactionsPending!DataSize!Read/WriteRequests!Read/WriteLatency!CFSSTableSizedatabaseCompactionsPending!DataSize!Read/WriteRequests!Read/WriteLatency!CFSSTableSizenetworking

3、Read/WriteRequestTimeouts!DroppedMessages!HintsStoreddatabaseCompactionsPending!DataSize!Read/WriteRequests!Read/WriteLatency!CFSSTableSizenetworkingRead/WriteRequestTimeouts!DroppedMessages!HintsStoredCMSCollectionTime!JVMParNewCollectionTimeorg.apache.cassandra

4、.metrics•CodahalemetricslibraryfirstintroducedinCASSANDRA-3671(vConnection1.1)CompactionCommitLog•PluggablereportersintroducedinCASSANDRA-4430(v2.0.2)DroppedMessagesCache•CompletedescriptioninApachedocumentationClientRequestStorageRiemann•Real-timecopyrightKyleKin

5、gsbury,usedwithpermissionRiemann•Real-time•StreamsaresuccessionsoffilterscopyrightKyleKingsbury,usedwithpermissionRiemann•Real-time•Streamsaresuccessionsoffilters•ExpressiveprogramminglanguagecopyrightKyleKingsbury,usedwithpermissionMonitoringEcosystemDownloadpacka

6、gefromriemann.io/etc/riemann/riemann.configModifiedversionofhttps://github.com/addthis/metrics-reporter-configSpecifythemetricstosendfromCassandracassandra-env.shStartingCassandraINFO[2014-07-1521:44:50,712]pool-1-thread-1-riemann.config-averageevent#riemann.codec.E

7、vent{:hostx.x.x.x,:serviceorg.apache.cassandra.metricsClientRequestWriteLatency.95,:state“ok”,:descriptionnil,:metric19514.037499999988,:tagsnil,:time1405482287,:ttlnil}INFO[2014-07-1521:44:50,712]pool-1-thread-1-riemann.config-averageevent#riemann.codec.Event{:h

8、ostx.x.x.x,:serviceorg.apache.cassandra.metricsClientRequestWriteLatency.95,:state“ok”,:descriptionnil,:metric19514.037499999988,:tagsnil,:time1405482287,:ttln