Google Cloud Monitoring Metrics

Metric Type
Display Name

Kind, Type, Unit

Description

Labels

/cluster/activity_count
Activity Count

CUMULATIVE, INT64, n/a

Number of read, write, gossip, and compaction tasks.

/client_request/latency/50p
Read latency

GAUGE, DOUBLE, us

Latency of standard read requests.

operation: The storage operation name.

/client_request/latency/95p
Read latency

GAUGE, DOUBLE, us

Latency of standard read requests.

operation: The storage operation name.

/client_request/latency/99p
Read latency

GAUGE, DOUBLE, us

Latency of standard read requests.

operation: The storage operation name.

/client_request/latency/max
Read latency

GAUGE, DOUBLE, us

Latency of standard read requests.

operation: The storage operation name.

/current_tasks
Tasks

GAUGE, DOUBLE, n/a

Number of tasks in queue with the given task status.

stage_name: The name of the queue stage.

task_status: The status of the task (pending, active).

/completed_tasks
Completed tasks

CUMULATIVE, INT64, n/a

Number of completed tasks in queue.

stage_name: The name of the queue stage. (counter_mutation, mutation, read_repair, request_response).

/node/thread_pool/compaction_executor/task_count
Thread Pool Compaction Executor Task Count

GAUGE, INT64, n/a

Number of requested tasks on this pool

state: Current state of task (active, pending).

/node/client/unavailable_exception_count
Client Unavailable Exception Count

CUMULATIVE, INT64, n/a

The number of events that failed because too many replicas were unavailable

request_type: Request type (read, cas_read, write, cas_write, range_slice, view_write).

/node/client/latency
Client Latency

CUMULATIVE, INT64, us

Time spent in request events since process start.

request_type: Request type (read, cas_read, write, cas_write, range_slice, view_write).

/node/client/average_latency
Client Average Latency

GAUGE, DOUBLE, us

Average time spent in request events.

request_type: Request type ('read', 'cas_read', 'write', 'cas_write', 'range_slice', 'view_write').

/node/client/timeout_count
Client Timeout Count

CUMULATIVE, INT64, n/a

The count of requests not acknowledged within timeout window

request_type: Request type (read, cas_read, write, cas_write, view_write, range_slice).

/node/client/failure_count
Client Failure Count

CUMULATIVE, INT64, n/a

The number of request events that failed.

request_type: Request type (read, cas_read, write, cas_write, view_write, range_slice).

/node/client/request_count
Client Request Count

CUMULATIVE, INT64, us

Number of request events since process start.

request_type: Request type (read, cas_read, write, cas_write, view_write, range_slice).

/cache/hits
Hit count

CUMULATIVE, INT64, n/a

Key cache hit count for the table.

cache: The name of the cache.

/node/cache/misses
Cache Misses

CUMULATIVE, INT64, n/a

Number of cache misses.

cache: Cache ('key', 'chunk', 'row').

/node/cache/capacity
Cache Capacity

GAUGE, INT64, By

Number of cache capacity.

cache: Cache ('key', 'counter', 'chunk', 'row').

/node/cache/requests
Cache Requests

CUMULATIVE, INT64, n/a

Number of cache requests.

cache: Cache ('key', 'counter', 'chunk', 'row').

/node/cache/size
Cache Size

GAUGE, INT64, By

Number of cache size.

cache: Cache ('key', 'counter', 'chunk', 'row').

/node/cache/entries
Cache Entries

GAUGE, INT64, n/a

Number of cache entries.

cache: Cache ('key', 'counter', 'chunk', 'row').

/dropped_message/dropped_count
Dropped messages

CUMULATIVE, INT64, n/a

Total number of dropped messages for the mutation.

operation: The storage operation name.

/node/garbage_collection/concurrent_mark_sweep_collection_time
Garbage Collection Concurrent Mark Sweep Collection Time

CUMULATIVE, INT64, ms

Elapsed time garbage collecting the old generation, or relatively long-lived objects.

/node/garbage_collection/concurrent_mark_sweep_collection_count
Garbage Collection Concurrent Mark Sweep Collection Count

CUMULATIVE, INT64, n/a

Number of times the old generation has been garbage collected.

/node/garbage_collection/par_new_collection_time
Garbage Collection Par New Collection Time

CUMULATIVE, INT64, ms

Elapsed time garbage collecting the new generation, or relatively short-lived objects.

/node/garbage_collection/par_new_collection_count
Garbage Collection Par New Collection Count

CUMULATIVE, INT64, n/a

Number of times the new generation has been garbage collected.

/node/thread_pool/compaction_executor/completed_task_count
Thread Pool Compaction Executor Completed Task Count

CUMULATIVE, INT64, n/a

Completed compactions.

/node/active_cache_cleanups
Active Cache Cleanups

GAUGE, INT64, n/a

Active tasks to clear the cache.

/node/active_native_transport_requests
Active Native Transport Requests

GAUGE, INT64, n/a

Active requests to the server using the CQL Native Protocol.

/node/active_pending_range_calculator_tasks
Active Pending Range Calculator Tasks

GAUGE, INT64, n/a

Active calculations of pending rangers per bootstraps and departed nodes.

/node/cas_read_condition_not_met
CAS Read Condition Not Met

CUMULATIVE, INT64, n/a

Number of transaction preconditions that did not match current values during read.

/node/cas_read_contention
CAS Read Contention

CUMULATIVE, INT64, n/a

Number of lightweight transaction reads that were contended.

/node/cas_read_unfinished_commit
CAS Read Unfinished Commit

CUMULATIVE, INT64, n/a

Number of lightweight transactions that were committed on read.

/node/cas_write_condition_not_met
CAS Write Condition Not Met

CUMULATIVE, INT64, n/a

Number of lightweight transaction writes where preconditions did not match current values.

/node/cas_write_contention
CAS Write Contention

CUMULATIVE, INT64, n/a

Number of lightweight transaction writes that were contended.

/node/cas_write_unfinished_commit
CAS Write Unfinished Commit

CUMULATIVE, INT64, n/a

Number of transactions that were committed on write.

/commitlog_total_size
Commit log size

GAUGE, DOUBLE, By

Current data size of all commit log segments.

/node/memory/committed_heap
Committed Heap Memory

GAUGE, INT64, By

Amount of heap memory committed for the JVM.

/node/memory/committed_non_heap
Committed Non-Heap Memory

GAUGE, INT64, By

Amount of non-heap memory committed for the JVM.

/node/memory/committed_virtual
Committed Virtual Memory Size

GAUGE, INT64, By

Amount of memory allocated.

/node/completed_cache_cleanups
Completed Cache Cleanups

CUMULATIVE, INT64, n/a

Number of times the cache has been cleared.

/node/completed_native_transport_requests
Completed Native Transport Requests

CUMULATIVE, INT64, n/a

Completed requests to the server using the CQL Native Protocol.

/node/completed_pending_range_calculator_tasks
Completed Pending Range Calculator Tasks

CUMULATIVE, INT64, n/a

Completed calculations of pending rangers per bootstraps and departed nodes.

/node/completed_validation_executor_tasks
Completed Validation Executor Tasks

CUMULATIVE, INT64, n/a

Completed schema validations.

/node/daemon_threads
Daemon Threads

GAUGE, INT64, n/a

Current number of live daemon threads.

/node/memory/free_physical
Free Physical Memory Size

GAUGE, INT64, By

Amount of free memory available to the operating system.

/node/free_swap_space
Free Swap Space Size

GAUGE, INT64, By

Amount of free swap space.

/node/gossip_running
Gossip Running

GAUGE, BOOL, n/a

Whether gossip is running.

/node/index_info_count
Index Info Count

CUMULATIVE, INT64, n/a

Number of on-heap index entries.

/node/index_info_gets
Index Info Gets

CUMULATIVE, INT64, n/a

Number of index seeks.

/node/indexed_entry_size
Indexed Entry Size

CUMULATIVE, INT64, By

On-heap index size.

/node/initialized
Initialized

GAUGE, BOOL, n/a

Whether the node is successfully initialized.

/node/joined
Joined

GAUGE, BOOL, n/a

Whether or not the node has joined the cluster.

/node/memory/maximum_heap
Maximum Heap Memory

GAUGE, INT64, By

Maximum amount of heap memory that could be committed for the JVM.

/node/memory/maximum_non_heap
Maximum Non-Heap Memory

GAUGE, INT64, By

Maximum amount of non-heap memory that could be committed for the JVM.

/node/native_transport_running
Native Transport Running

GAUGE, BOOL, n/a

Whether or not the native protocol server is running.

/node/memory/objects_pending_finalization
Objects Pending Finalization

GAUGE, INT64, n/a

Number of objects queued for finalization, where their memory usage will be reclaimed.

/node/open_file_descriptors
Open File Descriptors

CUMULATIVE, INT64, n/a

Current number of open file descriptors.

/node/pending_cache_cleanups
Pending Cache Cleanups

GAUGE, INT64, n/a

Pending tasks to clear the cache.

/node/pending_pending_range_calculator_tasks
Pending Pending Range Calculator Tasks

GAUGE, INT64, n/a

Pending calculations of pending rangers per bootstraps and departed nodes.

/node/pending_validation_executor_tasks
Pending Validation Executor Tasks

GAUGE, INT64, n/a

Pending schema validations.

/node/pending_native_transport_requests
Pending Native Transport Requests

GAUGE, INT64, n/a

Queued requests to the server using the CQL Native Protocol.

/node/prepared_statements
Prepared Statements

GAUGE, INT64, n/a

Number of prepared statements.

/node/prepared_statements_evicted
Prepared Statements Evicted

CUMULATIVE, INT64, n/a

Number of prepared statements that have been evicted to save space for other prepared statements.

/node/prepared_statements_executed
Prepared Statements Executed

CUMULATIVE, INT64, n/a

Number of prepared statements executed.

/node/cpu/process_load
Process CPU Load

GAUGE, DOUBLE, n/a

Process CPU Load.

/node/cpu/process_time
Process CPU Time

CUMULATIVE, INT64, ns

Amount of time used by the process.

/node/regular_statements_executed
Regular Statements Executed

CUMULATIVE, INT64, n/a

Number of regular (non-prepared) statements executed.

/node/rpc_server_running
RPC Server Running

GAUGE, BOOL, n/a

Whether or not the Thrift (RPC) server is running.

/node/started_threads
Started Threads

CUMULATIVE, INT64, n/a

Number of threads created and also started since the Java virtual machine started.

/node/starting
Starting

GAUGE, BOOL, n/a

Whether the node is starting.

/storage_service_exception_count
Exceptions

CUMULATIVE, INT64, n/a

The number of exceptions thrown by the storage operations.

/storage_service_load
Storage load

GAUGE, DOUBLE, By

Total disk space used for this node.

/node/storage_total_hints
Storage Total Hints

CUMULATIVE, INT64, n/a

Number of hint messages written to this node since restart.

/node/cpu/system_load
System CPU Load

GAUGE, DOUBLE, n/a

System CPU Load.

/node/cpu/system_load_average
System Load Average

GAUGE, DOUBLE, n/a

System load average.

/node/threads
Threads

GAUGE, INT64, n/a

Current number of live threads including both daemon and non-daemon threads.

/node/hints_in_progress
Hints in Progress

GAUGE, INT64, n/a

Number of hints attemping to be sent currently.

/node/memory/physical
Physical Memory Size

GAUGE, INT64, By

Amount of memory available to the operating system.

/node/swap_space
Swap Space Size

GAUGE, INT64, By

Amount of swap space allocated.

/node/uptime
Uptime

GAUGE, INT64, ms

Time since Cassandra last started.

/node/memory/used_heap
Used Heap Memory

GAUGE, INT64, By

Amount of heap memory in use.

/node/memory/used_non_heap
Used Non-Heap Memory

GAUGE, INT64, By

Amount of non-heap memory in use.

/node/view_pending_mutations
View Pending Mutations

GAUGE, INT64, n/a

View mutations that have been attempted but have not yet succeeded.

/node/view_replicas_attempted
View Replicas Attempted

CUMULATIVE, INT64, n/a

Number of attempted view replications.

/node/view_replicas_succeeded
View Replicas Succeeded

CUMULATIVE, INT64, n/a

Number of successful view replications.

/node/write_unavailables
Write Unavailables

CUMULATIVE, INT64, n/a

Writes that failed because too many replicas were unavailable.

/column_family/max_row_size
Max row size

GAUGE, DOUBLE, By

Size of the largest compacted row.

/column_family/compression_ratio
Compression ratio

GAUGE, DOUBLE, n/a

Current compression ratio for all SSTables.

/node_keyspace/client/latency
Client Latency

CUMULATIVE, INT64, us

Time spent in request events since process start.

request_type: Request type ('cas_commit', 'cas_prepare', 'cas_propose', 'range', 'read', 'write').

/node_keyspace/client/average_latency
Client Average Latency

GAUGE, DOUBLE, us

Average time spent in request events.

request_type: Request type ('cas_commit', 'cas_prepare', 'cas_propose', 'range', 'read', 'write').

/node_keyspace/client/request_count
Client Request Count

CUMULATIVE, INT64, us

Number of request events since process start.

request_type: Request type ('cas_commit', 'cas_prepare', 'cas_propose', 'range', 'read', 'write').

/node_keyspace/all_memtables/live_data
All Memtables Live Data Size

GAUGE, INT64, By

amount of live data stored in the memtables (2i and pending flush memtables included), excluding any data structure overhead.

/node_keyspace/all_memtables/off_heap_data
All Memtables Off Heap Data Size

GAUGE, INT64, By

Amount of data stored in the memtables (2i and pending flush memtables included) that resides off-heap.

/node_keyspace/all_memtables/on_heap_data
All Memtables On Heap Data Size

GAUGE, INT64, By

Amount of data stored in the memtables (2i and pending flush memtables included) that resides on-heap.

/node_keyspace/bloom_filter/disk/space_used
Bloom Filter Disk Space Used

GAUGE, INT64, By

Disk space used by bloom filter.

/node_keyspace/bloom_filter/memory/off_heap_used
Bloom Filter Off Heap Memory Used

GAUGE, INT64, By

Amount of off heap memory used for Bloom filters for this table.

/node_keyspace/compression_metadata/memory/off_heap_used
Compression Metadata Off Heap Memory Used

GAUGE, INT64, By

The amount of off heap memory used for compression offset maps for this keyspace.

/node_keyspace/index_summary/memory/off_heap_used
Index Summary Off Heap Memory Used

GAUGE, INT64, By

Amount of off heap memory used for index summaries for this keyspace.

/node_keyspace/disk/live_space_used
Live Disk Space Used

GAUGE, INT64, By

Disk space used by SSTables belonging to this keyspace.

/node_keyspace/live_scanned
Live Scanned

GAUGE, INT64, n/a

Live cells scanned in queries on this keyspace.

/node_keyspace/memtable/column_count
Memtable Columns Count

GAUGE, INT64, n/a

Number of columns present in the memtable.

/node_keyspace/memtable/live_data
Memtable Live Data Size

GAUGE, INT64, By

Amount of live data stored in the memtable, excluding any data structure overhead.

/node_keyspace/memtable/off_heap_data
Memtable Off Heap Data Size

GAUGE, INT64, By

Amount of data stored in the memtable that resides off-heap, including column related overhead and partitions overwritten.

/node_keyspace/memtable/on_heap_data
Memtable On Heap Data Size

GAUGE, INT64, By

Amount of data stored in memtables that resides on-heap, including column related overhead and partitions overwritten.

/node_keyspace/memtable/switch_count
Memtable Switch Count

CUMULATIVE, INT64, n/a

Number of times flush has resulted in the memtable being switched out.

/node_keyspace/pending_compactions
Pending Compactions

GAUGE, INT64, n/a

Number of pending compactions for this keyspace.

/node_keyspace/pending_flushes
Pending Flushes

GAUGE, INT64, n/a

Number of flush tasks pending for this keyspace.

/node_keyspace/sstables_per_read
SSTables Per Read

GAUGE, INT64, n/a

Number of sstable data files accessed per read.

/node_keyspace/tombstone_scanned
Tombstone Scanned

GAUGE, INT64, n/a

Tombstones scanned in queries on this Keyspace.

/node_keyspace/disk/space_used
Disk Space Used

GAUGE, INT64, By

Disk space used by SSTables belonging to this keyspace including obsolete ones waiting to be garbage collected.

/node_table/client/latency
Client Latency

CUMULATIVE, INT64, us

Time spent in request events since process start.

request_type: Request type ('cas_commit', 'cas_prepare', 'cas_propose', 'range', 'read', 'write').

/node_table/client/average_latency
Client Average Latency

GAUGE, DOUBLE, us

Average time spent in request events.

request_type: Request type ('cas_commit', 'cas_prepare', 'cas_propose', 'range', 'read', 'write').

/node_table/client/request_count
Client Request Count

CUMULATIVE, INT64, us

Number of request events since process start.

request_type: Request type ('cas_commit', 'cas_prepare', 'cas_propose', 'range', 'read', 'write').

/node_table/all_memtables/heap
All Memtables Heap Size

GAUGE, INT64, By

Amount of data stored in the memtables (2i and pending flush memtables included) that resides on-heap.

/node_table/all_memtables/live_data
All Memtables Live Data Size

GAUGE, INT64, By

Amount of live data stored in the memtables (2i and pending flush memtables included) that resides off-heap, excluding any data structure overhead.

/node_table/all_memtables/off_heap
All Memtables Off Heap Size

GAUGE, INT64, By

Amount of data stored in the memtables (2i and pending flush memtables included) that resides off-heap.

/node_table/bloom_filter/disk/space_used
Bloom Filter Disk Space Used

GAUGE, INT64, By

Disk space used by bloom filter.

/node_table/bloom_filter/false_positive_ratio
Bloom Filter False Positive Ratio

GAUGE, DOUBLE, n/a

False positive ratio of bloom filter.

/node_table/bloom_filter/false_positives
Bloom Filter False Positives

GAUGE, INT64, n/a

Number of false positives in bloom filter.

/node_table/bloom_filter/memory/off_heap_used
Bloom Filter Off Heap Memory Used

GAUGE, INT64, By

Off heap memory used by bloom filter.

/node_table/compaction_data_written
Compaction Data Written

GAUGE, INT64, By

Compaction Data Written.

/node_table/compression_metadata/memory/off_heap_used
Compression Metadata Off Heap Memory Used

GAUGE, INT64, By

Off heap memory used by compression meta data.

/node_table/compression_ratio
Compression ratio

GAUGE, DOUBLE, n/a

Current compression ratio for the SSTable.

/node_table/crc_check_chance
CRC Check Chance

GAUGE, DOUBLE, n/a

Defines the probability with which checksums are checked during read to ensure compressed data has not suffered bitrot or corruption.

/node_table/disk/data_flushed
Data Flushed

CUMULATIVE, INT64, By

Data Flushed.

/node_table/droppable_tombstone_ratio
Droppable Tombstone Ratio

GAUGE, DOUBLE, n/a

Ratio of tombstones that can safely be dropped.

/node_table/estimated_partition_count
Estimated Partition Count

GAUGE, INT64, n/a

Estimated Partition Count.

/node_table/index_summary/memory/off_heap_used
Index Summary Off Heap Memory Used

GAUGE, INT64, By

Off heap memory used by index summary.

/node_table/key_cache_hit_rate
Key Cache Hit Rate

GAUGE, DOUBLE, /s

Key Cache Hit Rate.

/node_table/disk/live_space_used
Live Disk Space Used

CUMULATIVE, INT64, By

Disk space used by SSTables belonging to this column family.

/node_table/live_scanned
Live Scanned

CUMULATIVE, INT64, n/a

Live cells scanned in queries.

/node_table/live_sstable_count
Live SSTable Count

GAUGE, INT64, n/a

Live SSTable Count.

/node_table/max_partition_size
Max Partition Size

GAUGE, INT64, By

Max Partition Size.

/node_table/mean_partition_size
Mean Partition Size

GAUGE, INT64, By

Mean Partition Size.

/node_table/memtable/columns_count
Memtable Columns Count

GAUGE, INT64, n/a

Memtable Columns Count.

/node_table/memtable/live_data
Memtable Live Data Size

GAUGE, INT64, By

Amount of live data stored in the memtable, excluding any data structure overhead.

/node_table/memtable/off_heap
Memtable Off Heap Size

GAUGE, INT64, By

Amount of data stored in the memtable that resides off-heap, including column related overhead and overwritten rows.

/node_table/memtable/on_heap
Memtable On Heap Size

GAUGE, INT64, By

Amount of data stored in the memtable that resides on-heap, including column related overhead and overwritten rows.

/node_table/memtable/switch_count
Memtable Switch Count

CUMULATIVE, INT64, n/a

Number of times flush has resulted in the memtable being switched out.

/node_table/minimum_partition_size
Minimum Partition Size

GAUGE, INT64, By

Minimum Partition Size.

/node_table/pending_compactions
Pending Compactions

GAUGE, INT64, n/a

Estimate of number of pending compactions.

/node_table/row_cache_hits
Row Cache Hits

GAUGE, INT64, n/a

Number of row cache hits.

/node_table/row_cache_hit_out_of_range
Row Cache Hit Out Of Range

CUMULATIVE, INT64, n/a

Row cache hits, but result out of range.

/node_table/row_cache_misses
Row Cache Misses

CUMULATIVE, INT64, n/a

Number of row cache misses.

/node_table/speculative_retries
Speculative Retries

CUMULATIVE, INT64, n/a

Speculative Retries.

/node_table/tombstones_scanned
Tombstones Scanned

CUMULATIVE, INT64, n/a

Tombstones scanned in queries.

/node_table/disk/space_used
Disk Space Used

GAUGE, INT64, By

Disk space used by SSTables belonging to this CF, including obsolete ones waiting to be GC'd.

/node_table/unleveled_sstables
Unleveled SSTables

GAUGE, INT64, n/a

Unleveled SSTables.