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Weka documentation
Weka System Overview
About the Weka system
SSD capacity management
Filesystems, object stores, and filesystem groups
Weka networking
Data lifecycle management
Weka client and mount modes
Glossary
Getting Started with Weka
Quick installation guide
Manage the system using the Weka CLI
Manage the system using the Weka GUI
Run first IOs with WekaFS
Getting started with Weka REST API
Planning & Installation
Prerequisites for installation
Weka installation on bare metal
Weka installation on AWS
Performance
Weka performance tests
WekaFS Filesystems & Object Stores
Manage object stores
Manage filesystem groups
Manage filesystems
Attach or detach object store buckets
KMS management
Advanced data lifecycle management
Mount filesystems
Snapshots
Snap-To-Object
Quota management
Additional Protocols
NFS
SMB
S3
Operation Guide
Alerts
Events
Statistics
Manage statistics using the GUI
Manage statistics using the CLI
List of statistics
System congestion
Manage security
Expand and shrink cluster resources
Background tasks
Upgrade Weka versions
Billing & Licensing
License overview
Classic license
Pay-As-You-Go license
Support
Prerequisites and compatibility
Get support for your Weka system
The Weka support cloud
Diagnostics CLI command
Appendix
Weka CSI plugin
Monitor using external tools
Snapshot management
REST API Reference Guide
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List of statistics
This page lists all the statistics generated by the Weka system, according to category.

Attribute Cache

Type
Description
Units
GP_GETATTR_CACHE_MISS
Number of general purpose getAttr cache misses per second
Ops/Sec
GP_GETATTR
Number of general purpose getAttr calls per second
Ops/Sec

Block Cache

Type
Description
Units
BUCKET_CACHED_METADATA_BLOCKS
Bucket number of cached metadata blocks
Blocks
BUCKET_CACHED_REGISTRY_L2_BLOCKS
Bucket number of cached registry L2 blocks
Blocks
BUCKET_CACHE_METADATA_HITS
Bucket block cache metadata hits
Queries
BUCKET_CACHE_METADATA_MISSES
Bucket block cache metadata misses
Queries
BUCKET_CACHE_REGISTRY_L2_HITS
Bucket block cache registry L2 hits
Queries
BUCKET_CACHE_REGISTRY_L2_MISSES
Bucket block cache registry L2 misses
Queries
BUCKET_REGISTRY_L2_BLOCKS_NUM
Bucket number of registry L2 blocks
Blocks

Block Writes

Type
Description
Units
BLOCK_FULL_WRITES
Full block writes
Writes
BLOCK_PARTIAL_WRITES
Partial block writes
Writes

Bucket

Type
Description
Units
BUDGET_UNDERFLOW_BLOCKS
Blocks/Sec
​
CHOKING_LEVEL_ALL
Throttling level applied on all types of IOs
%
CHOKING_LEVEL_NON_MUTATING
Throttling level applied on non-mutating only types of IOs
%
DESTAGED_BLOCKS_COUNT
Blocks/Sec
​
DESTAGE_COUNT
Destages/Sec
​
DIR_MOVE_TIME
Ops
​
EXTENT_BLOCKS_COUNT
Blocks
​
FREEABLE_LRU_BUFFERS
Buffers
​
HASH_BLOCKS_COUNT
Blocks
​
INODE_BLOCKS_COUNT
Blocks
​
INODE_REFRESHER_QUEUE_LENGTH
Items
​
JOURNAL_BLOCKS_COUNT
Blocks
​
JOURNAL_ITERATIONS
Histogram of number of batches of stripes committed in a single request
​
READS
Number of read operations per second
Ops/Sec
READ_BYTES
Number of bytes read per second
Bytes/Sec
READ_LATENCY
Average latency of READ operations
Microseconds
REGISTRY_L1_BLOCKS_COUNT
Blocks
​
REGISTRY_L2_BLOCKS_COUNT
Blocks
​
REGISTRY_SEARCHES_COUNT
Queries/Sec
​

Bucket Failovers

Type
Description
Units
BUCKET_FAILOVERS
Amount of times swapping from a remote primary node to a secondary
Failovers
INVALID_BUCKET_TERM
Number of times a remote bucket rejected a request becaue the term was invalid
Exceptions
REMOTE_BUCKET_IS_SECONDARY
Number of times a remote bucket reported it is secondary and cannot serve us
Exceptions

Bucket Rebalances

Type
Description
Units
BUCKET_INITS
Number of bucket initializations
Times
BUCKET_INIT_LATENCY_HIST
Milliseconds
​
BUCKET_INIT_LATENCY
Average latency of bucket initialization
Seconds

CPU

Type
Description
Units
CPU_UTILIZATION
Percentage of the CPU time utilized for handling I/Os
%

Chocking

Type
Description
Units
CHOKING_LEVEL_ALL
Throttling level applied on all types of IOs, both mutating and non-mutating
​
CHOKING_LEVEL_NON_MUTATING
Throttling level applied on non-mutating only types of IOs
​

Clients

Type
Description
Units
CLIENTS_CONNECTED
Clients connected
Clients/Sec
CLIENTS_DISCONNECTED
Clients left or were removed
Clients/Sec
CLIENTS_LEFT
Clients left
Clients/Sec
CLIENTS_RECONNECTED
Clients reconnected instead of an old instance of theirs
Clients/Sec
CLIENTS_REMOVED
Clients removed
Clients/Sec

Config

Type
Description
Units
AVERAGE_CHANGES_IN_CHANGESET
Average changes in changeset
Changes/Sec
AVERAGE_CHANGES_IN_GENERATION
Average changes in generation
Changes/Sec
BACKEND_NODE_REJOIN_TIME
Milliseconds
​
CHANGESET_COMMIT_LATENCY
Average latency of committing a config changeset
Microseconds
CLIENT_NODE_REJOIN_TIME
Milliseconds
​
GENERATION_COMMIT_LATENCY
Average latency of committing a config generation
Microseconds
HEARTBEAT_PROCESSING_TIME_OLD
Seconds
​
HEARTBEAT_PROCESSING_TIME
Seconds
​
LEADER_HEARTBEAT_PROCESSING_TIME_OLD
Seconds
​
LEADER_HEARTBEAT_PROCESSING_TIME
Seconds
​
TOTAL_CHANGESETS_COMMITTED
Total number of changesets committed
Change Sets
TOTAL_COMMITTED_CHANGES
Total number of config changes committed
Changes
TOTAL_GENERATIONS_COMMITTED
Number of generations committed per second
Generations

Filesystem OBS

Type
Description
Units
BACKPRESSURED_BUCKETS_IN_FSS
Number of backpressured buckets
Buckets
CONCURRENT_DEMOTES
How many demotes are executed concurrently
Demotes
DEMOTE_EXTENT_OBS_FETCH_BACKPRESSURE
Number of extent BACKPRESSURE fetch operations per second
Ops/Sec
DEMOTE_EXTENT_OBS_FETCH_IMMEDIATE_RELEASE
Number of extent IMMEDIATE_RELEASE fetch operations per second
Ops/Sec
DEMOTE_EXTENT_OBS_FETCH_MANHOLE
Number of extent MANHOLE fetch operations per second
Ops/Sec
DEMOTE_EXTENT_OBS_FETCH_MIGRATE
Number of extent MIGRATE fetch operations per second
Ops/Sec
DEMOTE_EXTENT_OBS_FETCH_POLICY
Number of extent POLICY fetch operations per second
Ops/Sec
DEMOTE_EXTENT_OBS_FETCH_RECLAMATION_REUPLOAD
Number of extent RECLAMATION_REUPLOAD fetch operations per second
Ops/Sec
DEMOTE_EXTENT_OBS_FETCH_STOW
Number of extent STOW fetch operations per second
Ops/Sec
DEMOTE_EXTENT_OBS_FETCH
Number of extent fetch operations per second
Ops/Sec
DEMOTE_WAITING_FOR_SLOT
Average time waiting for a demotion concurrency slot
Microseconds
DESERIALIZED_EXTENTS_WITH_INVALID_BLOBS
Number of deserialized extents with invalid blob id
Extents
DOWNLOADS
Number of promotes operations per second
Ops/Sec
DOWNLOAD_LATENCY
Latency of promote operations
Microseconds
FAILED_DOWNLOADS
Number of failed promotes operations per second
Ops/Sec
FAILED_UPLOADS
Number of failed demotes operations per second
Ops/Sec
OBS_4K_IOPS_READ
Number of object store dedicated 4K read operations per second
Ops/Sec
OBS_BACKPRESSURE_FREED
Number of bytes freed from disk due to backpressure
Bytes/Sec
OBS_BLOB_HEADER_DOWNLOAD_LATENCY
Average latency of blob header download
Microseconds

Frontend

Type
Description
Units
FE_IDLE_CYCLES
Cycles/Sec
​
FE_IDLE_TIME
Percentage of the CPU time not utilized for handling I/Os on frontend
%

Frontend Encryption

Type
Description
Units
FE_BLOCKS_DECRYPTED
Number of blocks decrypted in the frontend
Blocks
FE_BLOCKS_ENCRYPTED
Number of blocks encrypted in the frontend
Blocks
FE_BLOCK_CRYPTO_LATENCY
Average latency of frontend block crypto
Microseconds
FE_BLOCK_DECRYPT_DURATION
Duration of decryption of blocks in the frontend
Microseconds
FE_BLOCK_ENCRYPT_DURATION
Duration of encryption of blocks in the frontend
Microseconds
FE_FILENAMES_DECRYPTED
Number of filenames decrypted in the frontend
Filenames
FE_FILENAMES_ENCRYPTED
Number of filenames encrypted in the frontend
Filenames
FE_FILENAME_CRYPTO_LATENCY
Average latency of frontend filename crypto
Microseconds
FE_FILENAME_DECRYPT_DURATION
Duration of decryption of filenames in the frontend
Microseconds
FE_FILENAME_ENCRYPT_DURATION
Duration of encryption of filenames in the frontend
Microseconds

Garbage Collection

Type
Description
Units
GC_FREE_SIZE_AFTER_SCAN
GC pool size after the scan ends
Bytes
GC_FREE_SIZE_BEFORE_SCAN
GC pool size before the scan starts
Bytes
GC_SCAN_TIME
GC scan time
Msec
GC_USED_SIZE_AFTER_SCAN
GC used size after the scan ends
Bytes
GC_USED_SIZE_BEFORE_SCAN
GC used size before the scan starts
Bytes

JRPC

Type
Description
Units
JRPC_SERVER_PROCESSING_AVG
Microseconds
​
JRPC_SERVER_PROCESSING_TIME
​
​

Journal

Type
Description
Units
JOURNAL_CURRENT_OPS
Operations currently in journal
Journal Entries
JOURNAL_OPS_IN
Operations added to the journal
Journal Entries/Sec
JOURNAL_OPS_OUT
Operations removed from the journal
Journal Entries/Sec

Memory

Type
Description
Units
RSS_CURRENT
MB
​
RSS_PEAK
MB
​

Network

Type
Description
Units
BAD_RECV_CSUM
Number of packets received with a bad checksum
Packets/Sec
CORRUPT_PACKETS
Number of packets received and deemed corrupted
Packets/Sec
DOUBLY_RECEIVED_PACKETS
Number of packets that were received multiple times
Packets/Sec
DROPPED_LARGE_PACKETS
Number of large packets dropped in the socket backend
Packets/Sec
DROPPED_PACKETS
Number of packets received that we dropped
Packets/Sec
ECN_ENCOUNTERED
Number of ECN Encountered packets
Packets/Sec
FAULT_RECV_DELAYED_PACKETS
Number of received packets delayed due to a fault injection
Packets/Sec
FAULT_RECV_DROPPED_PACKETS
Number of received packets dropped due to a fault injection
Packets/Sec
FAULT_SENT_DELAYED_PACKETS
Number of sent packets delayed due to a fault injection
Packets/Sec
FAULT_SENT_DROPPED_PACKETS
Number of sent packets dropped due to a fault injection
Packets/Sec
GOODPUT_RX_RATIO
Percentage of goodput RX packets out of total data packets received
%
GOODPUT_TX_RATIO
Percentage of goodput TX packets out of total data packets sent
%
GW_MAC_RESOLVE_FAILURES
Number of times we failed to ARP resolve the gateway IP
Failures
GW_MAC_RESOLVE_SUCCESSES
Number of times we succeeded to ARP resolve the gateway IP
Successes
NODE_RECONNECTED
Number of reconnections
Reconnects/Sec
PACKETS_PUMPED
Number of packets received in each call to recvPackets
​
PEER_RTT
RTT per peer node
Microseconds
PORT_RX_BYTES
Number of bytes received
Bytes/Sec
PORT_RX_PACKETS
Number of packets received
Packets/Sec

Object Storage

Type
Description
Units
FAILED_OBJECT_DELETES
Number of failed object deletes per second (any failure reason)
Ops/Sec
FAILED_OBJECT_DOWNLOADS
Number of failed object download per second (any failure reason)
Ops/Sec
FAILED_OBJECT_HEAD_QUERIES
Number of failed object head queries per second (any failure reason)
Ops/Sec
FAILED_OBJECT_OPERATIONS
Total failed operations per second
Ops/Sec
FAILED_OBJECT_UPLOADS
Number of failed object uploads per second (any failure reason)
Ops/Sec
OBJECT_DELETES
Number of object deletes per second
Ops/Sec
OBJECT_DELETE_DURATION
Milliseconds
​
OBJECT_DELETE_LATENCY
Latency of deleting an object
Microseconds
OBJECT_DOWNLOADS_BACKGROUND
Number of BACKGROUND objects downloaded per second
Ops/Sec
OBJECT_DOWNLOADS_FOREGROUND
Number of FOREGROUND objects downloaded per second
Ops/Sec
OBJECT_DOWNLOADS
Number of objects downloaded per second
Ops/Sec
OBJECT_DOWNLOAD_BYTES_BACKGROUND
Number of BACKGROUND bytes sent to object storage
Bytes/Sec
OBJECT_DOWNLOAD_BYTES_FOREGROUND
Number of FOREGROUND bytes sent to object storage
Bytes/Sec
OBJECT_DOWNLOAD_DURATION
Milliseconds
​
OBJECT_DOWNLOAD_LATENCY
Latency of downloading an object
Microseconds
OBJECT_DOWNLOAD_SIZE
Bytes
​
OBJECT_HEAD_DURATION
Milliseconds
​
OBJECT_HEAD_LATENCY
Latency of deleting an object
Microseconds
OBJECT_HEAD_QUERIES
Number of object head queries per second
Ops/Sec

Operations (NFS)

Type
Description
Units
ACCESS_LATENCY
Average latency of ACCESS operations
Microseconds
ACCESS_OPS
Number of ACCESS operation per second
Ops/Sec
COMMIT_LATENCY
Average latency of COMMIT operations
Microseconds
COMMIT_OPS
Number of COMMIT operation per second
Ops/Sec
CREATE_LATENCY
Average latency of CREATE operations
Microseconds
CREATE_OPS
Number of CREATE operation per second
Ops/Sec
FSINFO_LATENCY
Average latency of FSINFO operations
Microseconds
FSINFO_OPS
Number of FSINFO operation per second
Ops/Sec
GETATTR_LATENCY
Average latency of GETATTR operations
Microseconds
GETATTR_OPS
Number of GETATTR operation per second
Ops/Sec
LINK_LATENCY
Average latency of LINK operations
Microseconds
LINK_OPS
Number of LINK operation per second
Ops/Sec
LOOKUP_LATENCY
Average latency of LOOKUP operations
Microseconds
LOOKUP_OPS
Number of LOOKUP operation per second
Ops/Sec
MKDIR_LATENCY
Average latency of MKDIR operations
Microseconds
MKDIR_OPS
Number of MKDIR operation per second
Ops/Sec
MKNOD_LATENCY
Average latency of MKNOD operations
Microseconds
MKNOD_OPS
Number of MKNOD operation per second
Ops/Sec
OPS
Total number of operations
Ops/Sec

Operations (NFSw)

Type
Description
Units
ACCESS_LATENCY
Average latency of ACCESS operations
Microseconds
ACCESS_OPS
Number of ACCESS operation per second
Ops/Sec
COMMIT_LATENCY
Average latency of COMMIT operations
Microseconds
COMMIT_OPS
Number of COMMIT operation per second
Ops/Sec
CREATE_LATENCY
Average latency of CREATE operations
Microseconds
CREATE_OPS
Number of CREATE operation per second
Ops/Sec
FSINFO_LATENCY
Average latency of FSINFO operations
Microseconds
FSINFO_OPS
Number of FSINFO operation per second
Ops/Sec
GETATTR_LATENCY
Average latency of GETATTR operations
Microseconds
GETATTR_OPS
Number of GETATTR operation per second
Ops/Sec
LINK_LATENCY
Average latency of LINK operations
Microseconds
LINK_OPS
Number of LINK operation per second
Ops/Sec
LOOKUP_LATENCY
Average latency of LOOKUP operations
Microseconds
LOOKUP_OPS
Number of LOOKUP operation per second
Ops/Sec
MKDIR_LATENCY
Average latency of MKDIR operations
Microseconds
MKDIR_OPS
Number of MKDIR operation per second
Ops/Sec
MKNOD_LATENCY
Average latency of MKNOD operations
Microseconds
MKNOD_OPS
Number of MKNOD operation per second
Ops/Sec
OPS
Total number of operations
Ops/Sec

Operations (S3)

Type
Description
Units
AVG_COPY_OPS
Average copy operations per second
Ops/Sec
AVG_DELETE_OPS
Average delete operations per second
Ops/Sec
AVG_GET_OPS
Average get operations per second
Ops/Sec
AVG_LIST_V1_OPS
Average list v1 operations per second
Ops/Sec
AVG_LIST_V2_OPS
Average list v2 operations per second
Ops/Sec
AVG_MULTIPART_UPLOAD_OPS
Average multipart upload operations per second
Ops/Sec
AVG_PUT_OBJECTPART_OPS
Average put objectpart operations per second
Ops/Sec
AVG_PUT_OPS
Average put operations per second
Ops/Sec
READ_BYTES
Number of byte reads per second
Bytes/Sec
THROUGHPUT
Throughput
Bytes/Sec
TOTAL_BUCKET_CREATE_OPS
Total bucket create operations per second
Ops/Sec
TOTAL_BUCKET_DELETE_OPS
Total bucket delete operation per seconds
Ops/Sec
TOTAL_BUCKET_LIST_OPS
Total bucket list operations per second
Ops/Sec
TOTAL_COPY_LATENCY
Average latency of Copy operations
Microseconds
TOTAL_COPY_OPS
Total Copy operations
Ops
TOTAL_DELETE_OPS
Total delete operations
Ops
TOTAL_GET_BUCKET_ACL_OPS
Total get bucket acl operations per second
Ops/Sec
TOTAL_GET_BUCKET_NOTIFICATION_OPS
Total get bucket notifications operations per second
Ops/Sec
TOTAL_GET_LATENCY
Average latency of Get operations
Microseconds

Operations (driver)

Type
Description
Units
DIRECT_READ_SIZES_RATE
Blocks/Sec
​
DIRECT_READ_SIZES
Blocks
​
DIRECT_WRITE_SIZES_RATE
Blocks
​
DIRECT_WRITE_SIZES
Blocks
​
DOORBELL_RING_COUNT
Ops
​
FAILED_1HOP_READS
Number of failed single hop reads per second
Ops/Sec
FILEATOMICOPEN_LATENCY
Average latency of FILEATOMICOPEN operations
Microseconds
FILEATOMICOPEN_OPS
Number of FILEATOMICOPEN operation per second
Ops/Sec
FILECLOSE_LATENCY
Average latency of FILECLOSE operations
Microseconds
FILECLOSE_OPS
Number of FILECLOSE operation per second
Ops/Sec
FILEOPEN_LATENCY
Average latency of FILEOPEN operations
Microseconds
FILEOPEN_OPS
Number of FILEOPEN operation per second
Ops/Sec
FLOCK_LATENCY
Average latency of FLOCK operations
Microseconds
FLOCK_OPS
Number of FLOCK operation per second
Ops/Sec
GETATTR_LATENCY
Average latency of GETATTR operations
Microseconds
GETATTR_OPS
Number of GETATTR operation per second
Ops/Sec
GETXATTR_LATENCY
Average latency of GETXATTR operations
Microseconds
GETXATTR_OPS
Number of GETXATTR operation per second
Ops/Sec
IOCTL_OBS_PREFETCH_LATENCY
Average latency of IOCTL_OBS_PREFETCH operations
Microseconds

Operations

Type
Description
Units
ACCESS_LATENCY
Average latency of ACCESS operations
Microseconds
ACCESS_OPS
Number of ACCESS operation per second
Ops/Sec
COMMIT_LATENCY
Average latency of COMMIT operations
Microseconds
COMMIT_OPS
Number of COMMIT operation per second
Ops/Sec
CREATE_LATENCY
Average latency of CREATE operations
Microseconds
CREATE_OPS
Number of CREATE operation per second
Ops/Sec
FILEATOMICOPEN_LATENCY
Average latency of FILEATOMICOPEN operations
Microseconds
FILEATOMICOPEN_OPS
Number of FILEATOMICOPEN operation per second
Ops/Sec
FILECLOSE_LATENCY
Average latency of FILECLOSE operations
Microseconds
FILECLOSE_OPS
Number of FILECLOSE operation per second
Ops/Sec
FILEOPEN_LATENCY
Average latency of FILEOPEN operations
Microseconds
FILEOPEN_OPS
Number of FILEOPEN operation per second
Ops/Sec
FLOCK_LATENCY
Average latency of FLOCK operations
Microseconds
FLOCK_OPS
Number of FLOCK operation per second
Ops/Sec
FSINFO_LATENCY
Average latency of FSINFO operations
Microseconds
FSINFO_OPS
Number of FSINFO operation per second
Ops/Sec
GETATTR_LATENCY
Average latency of GETATTR operations
Microseconds
GETATTR_OPS
Number of GETATTR operation per second
Ops/Sec
LINK_LATENCY
Average latency of LINK operations
Microseconds

RAFT

Type
Description
Units
Bucket_LEADER_CHANGES
Changes of leader
Changes
Bucket_REQUESTS_COMPLETED
Requests to leader completed successfully
Requests
Configuration_LEADER_CHANGES
Changes of leader
Changes
Configuration_REQUESTS_COMPLETED
Requests to leader completed successfully
Requests
Invalid_LEADER_CHANGES
Changes of leader
Changes
Invalid_REQUESTS_COMPLETED
Requests to leader completed successfully
Requests
SYNCLOG_TIMEOUTS
Number of times timeouted on syncing logs to node
Timeouts
Test_LEADER_CHANGES
Changes of leader
Changes
Test_REQUESTS_COMPLETED
Requests to leader completed successfully
Requests

RAID

Type
Description
Units
LONG_RPC_TIMEOUTS
Long RPC timeouts encountered
Occurences
RAID_BLOCKS_IN_PREPARED_STRIPE
Free blocks in prepared stripe
​
RAID_CHUNKS_CLEANED_BY_SHIFT
Dirty chunks cleaned by being shifted out
Occurences
RAID_CHUNKS_SHIFTED
Dirty chunks that shifted out
Occurences
RAID_COMMITTED_STRIPES
Num stripes written
Stripes
RAID_PLACEMENT_SWITCHES
Num placement switches
Switches
RAID_READ_BATCHES_PER_REQUEST_HISTOGRAM
Histogram of number of batches of stripes read in a single request
​
RAID_READ_BLOCKS_STRIPE_HISTOGRAM
Histogram of number of blocks read from a single stripe
​
RAID_READ_BLOCKS
Number of blocks read by the RAID
Blocks/Sec
RAID_READ_DEGRADED
Degraded mode reads
Blocks/Sec
RAID_READ_IOS
Raw read blocks performed by the RAID
Blocks/Sec
RAID_STALE_WRITES_DETECTED
Stale write detected in read
Occurences

RPC

Type
Description
Units
CLIENT_CANCELED_REQUESTS
Calls/Sec
​
CLIENT_DROPPED_RESPONSES
Calls/Sec
​
CLIENT_RECEIVED_EXCEPTIONS
Calls/Sec
​
CLIENT_RECEIVED_RESPONSES
Calls/Sec
​
CLIENT_RECEIVED_TIMEOUTS
Calls/Sec
​
CLIENT_ROUNDTRIP_AVG_LOW
Microseconds
​
CLIENT_ROUNDTRIP_AVG
Microseconds
​
CLIENT_RPC_CALLS_LOW
RPC/Sec
​
CLIENT_RPC_CALLS
RPC/Sec
​
CLIENT_SENT_REQUESTS
Calls/Sec
​
FIRST_RESULTS
Number of first results per second
Ops/Sec
SERVER_ABORTS
Calls/Sec
​
SERVER_DROPPED_REQUESTS
Calls/Sec
​
SERVER_PROCESSING_AVG
Microseconds
​
SERVER_PROCESSING_TIME
​
​
SERVER_RECEIVED_REQUESTS
Calls/Sec
​
SERVER_REJECTS
Calls/Sec
​
SERVER_RPC_CALLS
RPC/Sec
​
SERVER_SENT_EXCEPTIONS
Calls/Sec
​

Reactor

Type
Description
Units
BACKGROUND_CYCLES
Number of cycles spent in background fibers
Cycles/Sec
BACKGROUND_FIBERS
Number of background fibers that are ready to run and eager to get CPU cycles
Fibers
BACKGROUND_TIME
Percentage of the CPU time utilized for background operations
%
BucketInvocationState_CAPACITY
Number of data structures allocated to the BucketInvocationState pool
Structs
BucketInvocationState_STRUCT_SIZE
Number of bytes in each struct of the BucketInvocationState pool
Bytes
BucketInvocationState_USED
Number of structs in the BucketInvocationState pool which are currently being used
Structs
Bucket_CAPACITY
Number of data structures allocated to the Bucket pool
Structs
Bucket_STRUCT_SIZE
Number of bytes in each struct of the Bucket pool
Bytes
Bucket_USED
Number of structs in the Bucket pool which are currently being used
Structs
CLASS_BLOB!(RAID)_CAPACITY
Number of data structures allocated to the CLASS_BLOB!(RAID) pool
Structs
CLASS_BLOB!(RAID)_STRUCT_SIZE
Number of bytes in each struct of the CLASS_BLOB!(RAID) pool
Bytes
CLASS_BLOB!(RAID)_USED
Number of structs in the CLASS_BLOB!(RAID) pool which are currently being used
Structs
CYCLES_PER_SECOND
Number of cycles the cpu runs per second
Cycles/Sec
ChainedSpan_CAPACITY
Number of data structures allocated to the ChainedSpan pool
Structs
ChainedSpan_STRUCT_SIZE
Number of bytes in each struct of the ChainedSpan pool
Bytes
ChainedSpan_USED
Number of structs in the ChainedSpan pool which are currently being used
Structs
Charter_CAPACITY
Number of data structures allocated to the Charter pool
Structs
Charter_STRUCT_SIZE
Number of bytes in each struct of the Charter pool
Bytes
Charter_USED
Number of structs in the Charter pool which are currently being used
Structs

SSD

Type
Description
Units
DRIVE_ACTIVE_IOS
The number of in flight IO against the SSD at the time of sampling
IOs
DRIVE_FORFEITS
Number of IOs forfeited due to lack of memory buffers
Operations/Sec
DRIVE_IDLE_CYCLES
Number of cycles spent in idle
Cycles/Sec
DRIVE_IDLE_TIME
Percentage of the CPU time not utilized for handling I/Os
%
DRIVE_IO_OVERLAPPED
Number of overlapping IOs
Operations
DRIVE_IO_TOO_LONG
Number of IOs that took longer than expected
Operations/Sec
DRIVE_LATENCY
Measure the latencies up to 5ms (higher latencies will be grouped together)
​
DRIVE_LOAD
Drive Load at sampling time
Load
DRIVE_MEDIA_BLOCKS_READ
Blocks read from the SSD media
Blocks/Sec
DRIVE_MEDIA_BLOCKS_WRITE
Blocks written to the SSD media
Blocks/Sec
DRIVE_MEDIA_ERRORS
SSD Media Errors
IO/Sec
DRIVE_NON_MEDIA_ERRORS
SSD Non-Media Errors
IO/Sec
DRIVE_PENDING_IOS
The number of IOs waiting to start executing at the time of sampling
IOs
DRIVE_PUMPED_IOS
Number of requests returned in a pump
​
DRIVE_PUMPS_DELAYED
Number of Drive pumps that got delayed
Operations/Sec
DRIVE_PUMPS_SEVERELY_DELAYED
Number of Drive pumps that got severely delayed
Operations/Sec
DRIVE_PUMP_LATENCY
Latency between SSD pumps
Microseconds
DRIVE_READ_LATENCY
Drive Read Execution Latency
Microseconds
DRIVE_READ_OPS
Drive Read Operations
IO/Sec

Scrubber

Type
Description
Units
ACTUALLY_FALSE_FREE
Number of blocks that were detected as false-used and freed
Blocks/Sec
CLEANED_CHUNKS
Number of chunks that were cleaned by the scrubber
Chunks/Sec
DEGRADED_READS
Number of degraded reads for scrubbing
Requests/Sec
FALSE_FREE_CHECKED_BLOCKS
Number of blocks that were scrubbed-false-used
Blocks/Sec
FALSE_FREE_CHECK_LATENCY
Average latency of checking false free per block
Micros
FALSE_USED_CHECK_LATENCY
Average latency of checking false used per block
Micros
FALSE_USED_EXTRA_NOTIFIED
Number of blocks that were notified as used by the mark-extra-used mechanism
Blocks/Sec
INTERRUPTS
Number of scrubs that were interrupted
Occurences/Sec
NETWORK_BUDGET_WAIT_LATENCY
Average latency of waiting for our network budget
Micros
NOT_ACTUALLY_FALSE_FREE
Number of blocks that were detected as used
Blocks/Sec
NOT_REALLY_DIRTY_BLOCKS
Number of marked dirty blocks that ScrubMissingWrites found were actually clean
Blocks/Sec
NUM_COPY_DISCARDED_BLOCKS
Number of copied blocks that were discarded
Blocks/Sec
NUM_COPY_DISCARDS
Number of times we discarded scrubber copy work
Occurences/Sec
NUM_INVENTED_STRIPES_DISCARDS
Number of times we discarded all scrubber work due to invented stripes
Occurences/Sec
NUM_INVENTED_STRIPES_DISCARD_BLOCKS
Number of blocks that were discarded due to invented stripes
Blocks/Sec
NUM_SCRUBBER_DISCARD_INTERMEDIATES
Number of times we discarded all intermediate scrubber work
Occurences/Sec
NUM_SMW_DISCARDED_BLOCKS
Number of SMW'd blocks that were discarded
Blocks/Sec
NUM_SMW_DISCARDS
Number of times we discarded scrubber SMW work
Occurences/Sec
PLACEMENT_SELECTION_LATENCY
Average latency of scrubbed placement selection
Micros

Squelch

Type
Description
Units
BLOCKS_PER_DESQUELCH
Blocks
​
EXTENT_DESQUELCHES_NUM
Times
​
EXTENT_SQUELCH_BLOCKS_READ
Blocks
​
HASH_DESQUELCHES_NUM
Times
​
HASH_SQUELCH_BLOCKS_READ
Blocks
​