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Impala Monitoring Metrics
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Last updated: 2023-12-27 14:52:35
Impala Monitoring Metrics
Last updated: 2023-12-27 14:52:35
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Note:
Currently, only Impala v3.4.0 and later support Impala metrics.

Impala - catalog

Title
Metric
Unit
Description
Resident set size
RSS
bytes
Resident set size
JVM memory
MemHeapInitM
MB
Peak size of initial JVM HeapMemory
MemHeapCommittedM
MB
Size of HeapMemory currently committed by JVM
MemHeapMaxM
MB
Size of HeapMemory configured by JVM
MemHeapUsedM
MB
Size of HeapMemory currently used by JVM
MemNonHeapInitM
MB
Size of initial JVM NonHeapMemory
MemNonHeapCommittedM
MB
Size of NonHeapMemory currently committed by JVM
MemNonHeapUsedM
MB
Size of NonHeapMemory currently used by JVM
Interval between heartbeats from the daemon process to StateStore
Last
s
Latest interval between heartbeats from the daemon process to StateStore
Max
s
Maximum interval between heartbeats from the daemon process to StateStore
Mean
s
Average interval between heartbeats from the daemon process to StateStore
Min
s
Minimum interval between heartbeats from the daemon process to StateStore
Stddev
s
Standard deviation in the interval between heartbeats from the daemon process to StateStore
TCMalloc memory
Used
bytes
Number of bytes used by the program
PageheapFreeBytes
bytes
Number of bytes of free mapped pages in the page heap
PageheapUnmappedBytes
bytes
Number of bytes of free unmapped pages in the page heap
PhysicalBytesReserved
bytes
Amount of physical memory used by the process
TotalBytesReserved
bytes
Number of bytes of system memory reserved by TCMalloc
Active connections
Thrift_Server_Connections_Used
-
Number of active connections
Process execution duration
Uptime
s
Process execution duration
File descriptors
MaxFileDescriptorCount
-
Maximum number of file descriptors
OpenFileDescriptorCount
-
Number of opened file descriptors
Threads
ThreadCount
-
Total number of threads
DaemonThreadCount
-
Number of daemon threads
CPU utilization
SystemCpuLoad
-
System CPU Utilization

Impala - StateStore

Title
Metric
Unit
Description
Resident set size
RSS
bytes
Resident set size
TCMalloc memory
Used
bytes
Number of bytes used by the program
PageheapFreeBytes
bytes
Number of bytes of free mapped pages in the page heap
PageheapUnmappedBytes
bytes
Number of bytes of free unmapped pages in the page heap
PhysicalBytesReserved
bytes
Amount of physical memory used by the process
TotalBytesReserved
bytes
Number of bytes of system memory reserved by TCMalloc
Connections
Used
-
Number of active connections
Running threads
Count
-
Number of running threads
StateStore subscribers
Count
-
Number of StateStore subscribers

Impala - daemon

Title
Metric
Unit
Description
JVM memory
MemHeapInitM
MB
Peak size of initial JVM HeapMemory
MemHeapCommittedM
MB
Size of HeapMemory currently committed by JVM
MemHeapMaxM
MB
Size of HeapMemory configured by JVM
MemHeapUsedM
MB
Size of HeapMemory currently used by JVM
MemNonHeapInitM
MB
Size of initial JVM NonHeapMemory
MemNonHeapCommittedM
MB
Size of NonHeapMemory currently committed by JVM
MemNonHeapUsedM
MB
Size of NonHeapMemory currently used by JVM
TCMalloc memory
Used
bytes
Number of bytes used by the program
PageheapFreeBytes
bytes
Number of bytes of free mapped pages in the page heap
PageheapUnmappedBytes
bytes
Number of bytes of free unmapped pages in the page heap
PhysicalBytesReserved
bytes
Amount of physical memory used by the process
TotalBytesReserved
bytes
Number of bytes of system memory reserved by TCMalloc
Threads
ThreadCount
-
Total number of threads
DaemonThreadCount
-
Number of daemon threads
Process execution duration
Uptime
s
Process execution duration
File descriptors
MaxFileDescriptorCount
-
Maximum number of file descriptors
OpenFileDescriptorCount
-
Number of opened file descriptors
CPU utilization
SystemCpuLoad
-
System CPU Utilization
Beeswax API client connections
Use
-
Number of active Beeswax API connections
Conn_In_Use
-
Number of active Beeswax API connections to this Impala daemon
TotalConns
-
Total number of active Beeswax API connections to this Impala daemon
ConnSetupQueueSize
-
Number of Beeswax API connections that this Impala daemon has received and are waiting to establish
HS2 API client connections
Use
-
Number of active HS2 API connections
Conn_In_Use
-
Number of active HS2 API connections
TotalConns
-
Total number of HS2 API connections this Impala daemon has established during the lifecycle
ConnSetupQueueSize
-
Number of HS2 API connections that this Impala daemon has received and are waiting to establish
Thread manager
RunningThreads
-
Number of running threads
TotalCreatedThreads
-
Number of threads created during the lifecycle
Memory manager limit
Limit
Bytes
Memory beyond the memory limit (default value: -1)
Amount of memory beyond the memory limit (default value: -1)
OverLimit
Bytes
Number of threads created during the lifecycle
HS2 API client wait time for connection establishment
P20
us
HS2 API client wait time for connection establishment
P50
P70
P90
P95
P99.9
Beeswax API client wait time for service thread establishment
P20
us
Beeswax API client wait time for service thread establishment
P50
P70
P90
P95
P99.9
Timed-out Beeswax API connections
TimeOutCnncRequests
-
Number of timed-out Beeswax API connections
Time spent parsing requests from request pool (milliseconds)
Total
ms
Time spent parsing requests from request pool (milliseconds)
Cache misses in external data source cache class
Misses
-
Number of cache misses in external data source cache class
Impala backend server connection requests that timed out waiting for setup
ConnSetupQueueSize
-
Number of Impala backend server connection requests that timed out waiting for setup
Impala backend connection requests that timed out waiting for setup
TimeOutCnncRequests
-
Number of Impala backend connection requests that timed out waiting for setup
Total Impala backend client connections to this Impala daemon
TotalConnections
-
Total number of Impala backend client connections to this Impala daemon
Time spent by Impala backend client waiting for connection establishment
P20
us
Time spent by Impala backend client waiting for connection establishment
P50
P70
P90
P95
P99.9
Count
Sum
Time spent by Impala backend client waiting for service thread
P20
us
Time spent by Impala backend client waiting for service thread
P50
P70
P90
P95
P99.9
Count
Sum
HS2 API client wait time for service thread establishment
P20
us
HS2 API client wait time for service thread establishment
P50
P70
P90
P95
P99.9
Count
Sum
HS2 HTTP API client wait time for service thread
P20
us
HS2 HTTP API client wait time for service thread
P50
P70
P90
P95
P99.9
Count
Sum
DataStreamService: Rejected service queue overflows
RpcsQueueOverflow
-
DataStreamService: Number of rejected service queue overflows
ControlStreamService: Rejected service queue overflows
RpcsQueueOverflow
-
ControlStreamService: Number of rejected service queue overflows
DataStreamService: Used bytes
PeakUsageBytes
Bytes
Peak number of bytes used by Memtracker DataStreamService
CurrentUsageBytes
Bytes
Current number of bytes used by Memtracker DataStreamService
ControlService: Used bytes
PeakUsageBytes
Bytes
Peak number of bytes used by Memtracker ControlService
CurrentUsageBytes
Bytes
Current number of bytes used by Memtracker ControlService
Resident set size (RSS) for this process
RSS
Bytes
Resident set size (RSS) for this process
Total backends registered in StateStore
Total
-
Total number of backends registered in StateStore
Query release delay
P20
us
Query release delay
P50
P70
P90
P95
P99.9
Count
Sum
Opened HDFS filed
NumFilesOpenForInsert
-
Number of opened HDFS files
Scan range read during the lifecycle of the process
ScanRangesTotal
-
Scan range read during the lifecycle of the process
Opened Beeswax sessions
NumOpenBeeswaxSessions
-
Number of opened Beeswax sessions
Total query fragments processed during the lifecycle of the process
NumFragments
-
Total number of query fragments processed during the lifecycle of the process
Total scan ranges read during the lifecycle of the process without volume metadata
ScanRangesNumMissingVolumId
-
Total number of scan ranges read during the lifecycle of the process without volume metadata
Hedged read attempts
HedgedReadOps
-
Number of hedged read attempts
Total queries processed during the lifecycle of the process
NumQueries
-
Total number of queries processed during the lifecycle of the process
Total rows supporting caching HS2 FETCH_FIRST
ResultSetCacheTotalNumRows
-
Total number of rows supporting caching HS2 FETCH_FIRST
Total queries registered on this Impala server
NumQueriesRegistered
-
Total number of queries registered on this Impala server
Total backend queries
NumQueriesExecuted
-
Total number of backend queries
Sessions terminated due to inactivity
NumSessionsExpired
-
Number of sessions terminated due to inactivity
Queries terminated due to inactivity
NumQueriesExpired
-
Number of queries terminated due to inactivity
Opened HS2 sessions
NumOpenHS2Sessions
-
Number of opened HS2 sessions
Tables in catalog
NumTables
-
Number of tables in catalog
Databases in catalog
NumDatabases
-
Number of databases in catalog
Bytes written to the disk by the I/O manager
BytesWritten
-
Number of bytes written to the disk by the I/O manager
Files opened by the I/O manager
NumOpenFiles
-
Number of files opened by the I/O manager
Used HDFS file handles
NumFileHandlesOutstanding
Bytes
Number of used HDFS file handles
Read local bytes
LocalBytesRead
Bytes
Number of local bytes read by the I/O manager

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