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Elastic MapReduce
DocumentationElastic MapReduce EMR on CVM Operation GuideMonitoring and AlarmsMonitoring MetricsLivy Monitoring Metrics
Livy Monitoring Metrics
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Last updated: 2023-12-27 14:55:36
Livy Monitoring Metrics
Last updated: 2023-12-27 14:55:36
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Livy - LivyServer

Title
Metric
Unit
Description
GC count
YGC
-
Young GC count
FGC
-
Full GC count
GC time
FGCT
s
Full GC time
GCT
s
Garbage collection time
YGCT
s
Young GC time
Memory zone proportion
S0
%
Percentage of used Survivor 0 memory
E
%
Percentage of used Eden memory
CCS
%
Percentage of used compressed class space memory
S1
%
Percentage of used Survivor 1 memory
O
%
Percentage of used Old memory
M
%
Percentage of used Metaspace memory
JVM memory
MemHeapUsedM
MB
Size of HeapMemory currently used by JVM
MemHeapCommittedM
MB
Size of HeapMemory committed by JVM
MemHeapMaxM
MB
Size of HeapMemory configured by JVM
MemHeapInitM
MB
Size of initial JVM HeapMemory
MemNonHeapUsedM
MB
Size of NonHeapMemory currently used by JVM
MemNonHeapCommittedM
MB
Size of NonHeapMemory committed by JVM
MemNonHeapInitM
MB
Size of initial JVM NonHeapMemory
File descriptors
OpenFileDescriptorCount
-
Number of opened file descriptors
MaxFileDescriptorCount
-
Maximum number of file descriptors
CPU utilization
ProcessCpuLoad
%
Process CPU utilization
Worker threads
DaemonThreadCount
-
Number of daemon threads
PeakThreadCount
-
Peak number of threads
ThreadCount
-
Total number of threads
Cumulative CPU usage time
ProcessCpuTime
ms
Cumulative CPU usage time
Process execution duration
Uptime
s
Process execution duration

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