A: System metrics

CPU and OS information

• Operating System Infomation ( AvailableProcessors, Arch (amd64),etc )

(ObjectName:java.lang:type=OperatingSystem)
(InterfaceClassName:com.sun.management.UnixOperatingSystemMXBean)

RAM used/free

• FreePhysicalMemorySize, TotalPhysicalMemorySize, CommittedVirtualMemorySize;
• FreeSwapSpaceSize, TotalSwapSpaceSize;

(ObjectName:java.lang:type=OperatingSystem)
(InterfaceClassName:com.sun.management.UnixOperatingSystemMXBean)

System load

• SystemLoadAverage;
• OpenFileDescriptorCount, MaxFileDescriptorCount;

(ObjectName:java.lang:type=OperatingSystem)
(InterfaceClassName:com.sun.management.UnixOperatingSystemMXBean)

Disk reads/writes (N/A)

Network interface traffic (N/A)

JVM memory usage

• NonHeapMemoryUsage(max, committed, init, used, etc.);
• HeapMemoryUsage (max, committed, init, used, etc.);

(ObjectName:java.lang:type=Memory)
(InterfaceClassName:java.lang.management.MemoryMXBean)

• Perm Gen info; (PeakUsage, Usage, CollectionUsage );

(ObjectName:java.lang:type=MemoryPool,name=PS Perm Gen)
(InterfaceClassName:java.lang.management.MemoryPoolMXBean)

• Old Gen info;(PeakUsage, Usage, CollectionUsage );

(ObjectName:java.lang:type=MemoryPool,name=PS Old Gen)
(InterfaceClassName:java.lang.management.MemoryPoolMXBean)

• Survivor Space;(PeakUsage, Usage, CollectionUsage );

(ObjectName:java.lang:type=MemoryPool,name=PS Survivor Space)
(InterfaceClassName:java.lang.management.MemoryPoolMXBean)

• Eden Space; (PeakUsage, Usage, CollectionUsage );

(ObjectName:java.lang:type=MemoryPool,name=PS Eden Space)
(InterfaceClassName:java.lang.management.MemoryPoolMXBean)

• Code Cache; (PeakUsage, Usage, CollectionUsage );

(ObjectName:java.lang:type=MemoryPool,name=Code Cache)
(InterfaceClassName:java.lang.management.MemoryPoolMXBean)

JVM garbage collection times and counts

• LastGcInfo: StartTime, memoryUsageBeforeGc, memoryUsageAfterGc, etc. (PS Survivor Space, PS Eden Space, Code Cache, PS Old Gen, PS Perm Gen );

(ObjectName:java.lang:type=GarbageCollector,name=PS MarkSweep)
(InterfaceClassName:com.sun.management.GarbageCollectorMXBean)
 
(ObjectName:java.lang:type=GarbageCollector,name=PS Scavenge)
(InterfaceClassName:com.sun.management.GarbageCollectorMXBean)

JVM threads/classes

• LoadedClassCount;

(ObjectName:java.lang:type=ClassLoading)
(InterfaceClassName:java.lang.management.ClassLoadingMXBean)

• PeakThreadCount; CurrentThreadCpuTime; DaemonThreadCount; TotalStartedThreadCount; etc.;

(ObjectName:java.lang:type=Threading)
(InterfaceClassName:com.sun.management.ThreadMXBean)

Sensei-specific metrics

Docs-indexed

• Number of documents that has been indexed;

(ObjectName: com.senseidb:type=meter,scope=indexer,name=docs-indexed)
(InterfaceClassName: com.yammer.metrics.reporting.JmxReporter$MeterMBean)

Docs indexing rate

• Document indexing rate;

(com.senseidb:type=meter,scope=indexing-manager,name=indexing-events )
(InterfaceClassName: com.yammer.metrics.reporting.JmxReporter$MeterMBean)

Sensei server info

• Sensei server info, e.g., id, port, is_available, partitions;

(ObjectName: com.senseidb:name=sensei-server-1 )
(InterfaceClassName: com.senseidb.search.node.SenseiServerAdminMBean)

Disk Index Info for partition

• DiskFreeSpaceBytes, DiskIndexSizeBytes, LastOptimizationTime, LastDiskIndexModifiedTime, IndexDir, DiskIndexSegmentCount;

(ObjectName: com.senseidb:zoie-name=zoie-admin-1-1 )
(InterfaceClassName: proj.zoie.mbean.ZoieSystemAdminMBean)

• LastIndexingBatchSize, LastIndexingBatchDuration, LastIndexingEndTime;

(ObjectName: com.senseidb:zoie-name=zoie-status-1-1 )
(InterfaceClassName: proj.zoie.mbean.ZoieIndexingStatusAdminMBean)

Request number, OneMinuteRate

• Number of requests received, OneMinuteRate;

(ObjectName: com.senseidb:type=meter,scope=node,name=search-count )
(InterfaceClassName: com.yammer.metrics.reporting.JmxReporter$MeterMBean)

QPS (can be calculated)

Latency in Senseidb broker level

• Total search time;

(ObjectName:com.senseidb:type=timer,scope=broker,name=total-search-time)
(InterfaceClassName:com.yammer.metrics.reporting.JmxReporter$TimerMBean)

• Scatter time;

(ObjectName:com.com.senseidb:type=timer,scope=broker,name=scatter-time)
(InterfaceClassName:com.yammer.metrics.reporting.JmxReporter$TimerMBean)

• Gather time;

(ObjectName:com.senseidb:type=timer,scope=broker,name=gather-time)
(InterfaceClassName:com.yammer.metrics.reporting.JmxReporter$TimerMBean)

Latency in Senseidb node level

• Get reader time;

(ObjectName:com.senseidb:type=timer,scope=node,name=getreader-time)
(InterfaceClassName:com.yammer.metrics.reporting.JmxReporter$TimerMBean)

• Merge time;

(ObjectName:com.senseidb:type=timer,scope=node,name=merge-time)
(InterfaceClassName:com.yammer.metrics.reporting.JmxReporter$TimerMBean)

• Prune time;

(ObjectName:com.senseidb:type=timer,scope=node,name=prune)
(InterfaceClassName:com.yammer.metrics.reporting.JmxReporter$TimerMBean)

• Search time in node;

(ObjectName:com.senseidb:type=timer,scope=node,name=search-time)
(InterfaceClassName:com.yammer.metrics.reporting.JmxReporter$TimerMBean)

• Total search time;

(ObjectName:com.senseidb:type=timer,scope=node,name=total-search-time)
(InterfaceClassName:com.yammer.metrics.reporting.JmxReporter$TimerMBean)