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Elastic MapReduce
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    Druid Monitoring Metrics

    Last updated: 2023-12-27 14:51:14
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      Druid - Broker

      Metric Name
      Unit
      Description
      YGC
      -
      Young GC count
      FGC
      -
      Full GC count
      FGCT
      s
      Full GC time
      GCT
      s
      Garbage collection time
      YGCT
      s
      Young GC time
      S0
      %
      Percentage of used Survivor 0 memory
      E
      %
      Percentage of used Eden memory
      CCS
      %
      Percentage of memory used by compressed class space
      S1
      %
      Percentage of used Survivor 1 memory
      O
      %
      Percentage of used Old memory
      M
      %
      Percentage of used Metaspace memory
      MemHeapInitM
      MB
      Size of initial JVM HeapMem
      MemNonHeapInitM
      MB
      Size of initial JVM NonHeapMem
      MemHeapMaxM
      MB
      Size of HeapMemory configured by JVM
      MemHeapCommittedM
      MB
      Size of HeapMemory currently committed by JVM
      MemHeapUsedM
      MB
      Size of HeapMemory currently used by JVM
      MemNonHeapCommittedM
      MB
      Size of NonHeapMemory currently committed by JVM
      MemNonHeapUsedM
      MB
      Size of NonHeapMemory currently used by JVM
      ThreadsNew
      -
      Number of threads in NEW state
      ThreadsRunnable
      -
      Number of threads in RUNNABLE state
      ThreadsBlocked
      -
      Number of threads in BLOCKED state
      ThreadsWaiting
      -
      Number of threads in WAITING state
      ThreadsTimedWaiting
      -
      Number of threads in TIMED_WAITING state
      ThreadsTerminated
      -
      Number of threads in TERMINATED state
      LogFatal
      -
      Number of FATAL logs
      LogError
      -
      Number of ERROR logs
      LogWarn
      -
      Number of WARN logs
      LogInfo
      -
      Number of INFO logs
      jetty.numOpenConnections
      -
      Number of open Jetty connections
      segment.scan.pending
      -
      Number of segments in queue waiting to be scanned
      broker.query.count
      -
      number of total queries
      broker.query.success.count
      -
      number of queries successfully processed
      broker.query.failed.count
      -
      number of failed queries
      broker.query.interrupted.count
      -
      number of queries interrupted due to cancellation or timeout
      normal.count
      -
      Number of queries with delay shorter than 1 second
      abnormal.count
      -
      Number of queries with delay longer than or equal to 1 second

      Druid - Coordinator

      Metric Name
      Unit
      Description
      segment.assigned.count
      -
      Number of segments loaded into Druid cluster
      segment.moved.count
      -
      Number of segments moved in Druid cluster
      segment.dropped.count
      -
      Number of segments deleted in Druid cluster due to expiration
      segment.deleted.count
      -
      Number of segments deleted in Druid cluster due to rule settings
      segment.unneeded.count
      -
      Number of segments deleted in Druid cluster for being marked as "unused"
      segment.cost.raw
      ms
      Used in cost balancing. The raw cost of hosting segments.
      segment.cost.normalization
      ms
      Used in cost balancing. The normalization of hosting segments.
      segment.cost.normalized
      ms
      Used in cost balancing. The normalized cost of hosting segments.
      segment.loadQueue.size
      Bytes
      Size in bytes of segments to load.
      segment.loadQueue.failed
      -
      Number of segments that failed to load.
      segment.loadQueue.count
      -
      Number of segments to load.
      segment.dropQueue.count
      -
      Number of segments to drop.
      segment.overshadowed.count
      -
      Number of overshadowed segments.
      tier.historical.count
      -
      Number of available historical nodes in each tier.
      tier.replication.factor
      -
      Configured maximum replication factor in each tier.
      tier.required.capacity
      Bytes
      Total capacity in bytes required in each tier.
      tier.total.capacity
      Bytes
      Total capacity in bytes available in each tier.
      compact.task.count
      -
      Number of compaction tasks
      YGC
      -
      Young GC count
      FGC
      -
      Full GC count
      FGCT
      s
      Full GC time
      GCT
      s
      Garbage collection time
      YGCT
      s
      Young GC time
      S0
      %
      Percentage of used Survivor 0 memory
      E
      %
      Percentage of used Eden memory
      CCS
      %
      Percentage of memory used by compressed class space
      S1
      %
      Percentage of used Survivor 1 memory
      O
      %
      Percentage of used Old memory
      M
      %
      Percentage of used Metaspace memory
      MemHeapInitM
      MB
      Size of initial JVM HeapMem
      MemNonHeapInitM
      MB
      Size of initial JVM NonHeapMem
      MemHeapMaxM
      MB
      Size of HeapMemory configured by JVM
      MemHeapCommittedM
      MB
      Size of HeapMemory currently committed by JVM
      MemHeapUsedM
      MB
      Size of HeapMemory currently used by JVM
      MemNonHeapCommittedM
      MB
      Size of NonHeapMemory currently committed by JVM
      MemNonHeapUsedM
      MB
      Size of NonHeapMemory currently used by JVM
      ThreadsNew
      -
      Number of threads in NEW state
      ThreadsRunnable
      -
      Number of threads in RUNNABLE state
      ThreadsBlocked
      -
      Number of threads in BLOCKED state
      ThreadsWaiting
      -
      Number of threads in WAITING state
      ThreadsTimedWaiting
      -
      Number of threads in TIMED_WAITING state
      ThreadsTerminated
      -
      Number of threads in TERMINATED state
      LogFatal
      -
      Number of FATAL logs
      LogError
      -
      Number of ERROR logs
      LogWarn
      -
      Number of WARN logs
      LogInfo
      -
      Number of INFO logs
      segment.size
      Bytes
      Total size of used segments in a data source. Emitted only for data sources to which at least one used segment belongs.
      segment.count
      -
      Number of used segments belonging to a data source. Emitted only for data sources to which at least one used segment belongs.
      segment.unavailable.count
      -
      Number of segments (not including replicas) left to load until segments that should be loaded in the cluster are available for queries.
      segment.underReplicated.count
      -
      Number of segments (including replicas) left to load until segments that should be loaded in the cluster are available for queries.
      jetty.numOpenConnections
      -
      Number of open Jetty connections

      Druid - Historical

      Metric Name
      Unit
      Description
      YGC
      -
      Young GC count
      FGC
      -
      Full GC count
      FGCT
      s
      Full GC time
      GCT
      s
      Garbage collection time
      YGCT
      s
      Young GC time
      S0
      %
      Percentage of used Survivor 0 memory
      E
      %
      Percentage of used Eden memory
      CCS
      %
      Percentage of memory used by compressed class space
      S1
      %
      Percentage of used Survivor 1 memory
      O
      %
      Percentage of used Old memory
      M
      %
      Percentage of used Metaspace memory
      MemHeapInitM
      MB
      Size of initial JVM HeapMem
      MemNonHeapInitM
      MB
      Size of initial JVM NonHeapMem
      MemHeapMaxM
      MB
      Size of HeapMemory configured by JVM
      MemHeapCommittedM
      MB
      Size of HeapMemory currently committed by JVM
      MemHeapUsedM
      MB
      Size of HeapMemory currently used by JVM
      MemNonHeapCommittedM
      MB
      Size of NonHeapMemory currently committed by JVM
      MemNonHeapUsedM
      MB
      Size of NonHeapMemory currently used by JVM
      ThreadsNew
      -
      Number of threads in NEW state
      ThreadsRunnable
      -
      Number of threads in RUNNABLE state
      ThreadsBlocked
      -
      Number of threads in BLOCKED state
      ThreadsWaiting
      -
      Number of threads in WAITING state
      ThreadsTimedWaiting
      -
      Number of threads in TIMED_WAITING state
      ThreadsTerminated
      -
      Number of threads in TERMINATED state
      LogFatal
      -
      Number of FATAL logs
      LogError
      -
      Number of ERROR logs
      LogWarn
      -
      Number of WARN logs
      LogInfo
      -
      Number of INFO logs
      jetty.numOpenConnections
      -
      Number of open Jetty connections
      segment.scan.pending
      -
      Number of segments in queue waiting to be scanned
      segment.max
      Bytes
      Maximum byte limit available for segments
      segment.pendingdelete
      Bytes
      On-disk size in bytes of segments that are waiting to be cleared out
      historical.query.count
      -
      Total number of historical queries
      historical.query.success.count
      -
      Total number of historical query successes
      historical.query.failed.count
      -
      Total number of historical query failures
      historical.query.interrupted.count
      -
      Total number of historical query interruptions
      normal.count
      -
      Number of queries with delay shorter than 1 second
      abnormal.count
      -
      Number of queries with delay longer than or equal to 1 second

      Druid - MiddleManager

      Metric Name
      Unit
      Description
      YGC
      -
      Young GC count
      FGC
      -
      Full GC count
      FGCT
      s
      Full GC time
      GCT
      s
      Garbage collection time
      YGCT
      s
      Young GC time
      S0
      %
      Percentage of used Survivor 0 memory
      E
      %
      Percentage of used Eden memory
      CCS
      %
      Percentage of memory used by compressed class space
      S1
      %
      Percentage of used Survivor 1 memory
      O
      %
      Percentage of used Old memory
      M
      %
      Percentage of used Metaspace memory
      MemHeapInitM
      MB
      Size of initial JVM HeapMem
      MemNonHeapInitM
      MB
      Size of initial JVM NonHeapMem
      MemHeapMaxM
      MB
      Size of HeapMemory configured by JVM
      MemHeapCommittedM
      MB
      Size of HeapMemory currently committed by JVM
      MemHeapUsedM
      MB
      Size of HeapMemory currently used by JVM
      MemNonHeapCommittedM
      MB
      Size of NonHeapMemory currently committed by JVM
      MemNonHeapUsedM
      MB
      Size of NonHeapMemory currently used by JVM
      ThreadsNew
      -
      Number of threads in NEW state
      ThreadsRunnable
      -
      Number of threads in RUNNABLE state
      ThreadsBlocked
      -
      Number of threads in BLOCKED state
      ThreadsWaiting
      -
      Number of threads in WAITING state
      ThreadsTimedWaiting
      -
      Number of threads in TIMED_WAITING state
      ThreadsTerminated
      -
      Number of threads in TERMINATED state
      LogFatal
      -
      Number of FATAL logs
      LogError
      -
      Number of ERROR logs
      LogWarn
      -
      Number of WARN logs
      LogInfo
      -
      Number of INFO logs
      jetty.numOpenConnections
      -
      Number of open Jetty connections

      Druid - Overlord

      Metric Name
      Unit
      Description
      YGC
      -
      Young GC count
      FGC
      -
      Full GC count
      FGCT
      s
      Full GC time
      GCT
      s
      Garbage collection time
      YGCT
      s
      Young GC time
      S0
      %
      Percentage of used Survivor 0 memory
      E
      %
      Percentage of used Eden memory
      CCS
      %
      Percentage of memory used by compressed class space
      S1
      %
      Percentage of used Survivor 1 memory
      O
      %
      Percentage of used Old memory
      M
      %
      Percentage of used Metaspace memory
      MemHeapInitM
      MB
      Size of initial JVM HeapMem
      MemNonHeapInitM
      MB
      Size of initial JVM NonHeapMem
      MemHeapMaxM
      MB
      Size of HeapMemory configured by JVM
      MemHeapCommittedM
      MB
      Size of HeapMemory currently committed by JVM
      MemHeapUsedM
      MB
      Size of HeapMemory currently used by JVM
      MemNonHeapCommittedM
      MB
      Size of NonHeapMemory currently committed by JVM
      MemNonHeapUsedM
      MB
      Size of NonHeapMemory currently used by JVM
      ThreadsNew
      -
      Number of threads in NEW state
      ThreadsRunnable
      -
      Number of threads in RUNNABLE state
      ThreadsBlocked
      -
      Number of threads in BLOCKED state
      ThreadsWaiting
      -
      Number of threads in WAITING state
      ThreadsTimedWaiting
      -
      Number of threads in TIMED_WAITING state
      ThreadsTerminated
      -
      Number of threads in TERMINATED state
      LogFatal
      -
      Number of FATAL logs
      LogError
      -
      Number of ERROR logs
      LogWarn
      -
      Number of WARN logs
      LogInfo
      -
      Number of INFO logs
      jetty.numOpenConnections
      -
      Number of open Jetty connections

      Druid - Router

      Metric Name
      Unit
      Description
      YGC
      -
      Young GC count
      FGC
      -
      Full GC count
      FGCT
      s
      Full GC time
      GCT
      s
      Garbage collection time
      YGCT
      s
      Young GC time
      S0
      %
      Percentage of used Survivor 0 memory
      E
      %
      Percentage of used Eden memory
      CCS
      %
      Percentage of memory used by compressed class space
      S1
      %
      Percentage of used Survivor 1 memory
      O
      %
      Percentage of used Old memory
      M
      %
      Percentage of used Metaspace memory
      MemHeapInitM
      MB
      Size of initial JVM HeapMem
      MemNonHeapInitM
      MB
      Size of initial JVM NonHeapMem
      MemHeapMaxM
      MB
      Size of HeapMemory configured by JVM
      MemHeapCommittedM
      MB
      Size of HeapMemory currently committed by JVM
      MemHeapUsedM
      MB
      Size of HeapMemory currently used by JVM
      MemNonHeapCommittedM
      MB
      Size of NonHeapMemory currently committed by JVM
      MemNonHeapUsedM
      MB
      Size of NonHeapMemory currently used by JVM
      ThreadsNew
      -
      Number of threads in NEW state
      ThreadsRunnable
      -
      Number of threads in RUNNABLE state
      ThreadsBlocked
      -
      Number of threads in BLOCKED state
      ThreadsWaiting
      -
      Number of threads in WAITING state
      ThreadsTimedWaiting
      -
      Number of threads in TIMED_WAITING state
      ThreadsTerminated
      -
      Number of threads in TERMINATED state
      LogFatal
      -
      Number of FATAL logs
      LogError
      -
      Number of ERROR logs
      LogWarn
      -
      Number of WARN logs
      LogInfo
      -
      Number of INFO logs
      jetty.numOpenConnections
      -
      Number of open Jetty connections
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