Metrics in Prometheus
The metrics available to Prometheus.
The integration with Prometheus lets you create dashboards that highlight the metrics that are important to you.
Here are the metrics available to Prometheus:
Database metrics
| Metric | Description |
|---|---|
| bdb_avg_latency | Average latency of operations on the DB (seconds); returned only when there is traffic |
| bdb_avg_latency_max | Highest value of average latency of operations on the DB (seconds); returned only when there is traffic |
| bdb_avg_read_latency | Average latency of read operations (seconds); returned only when there is traffic |
| bdb_avg_read_latency_max | Highest value of average latency of read operations (seconds); returned only when there is traffic |
| bdb_avg_write_latency | Average latency of write operations (seconds); returned only when there is traffic |
| bdb_avg_write_latency_max | Highest value of average latency of write operations (seconds); returned only when there is traffic |
| bdb_bigstore_shard_count | Shard count by database and by storage engine (driver - rocksdb / speedb); Only for databases with Auto Tiering enabled |
| bdb_conns | Number of client connections to DB |
| bdb_egress_bytes | Rate of outgoing network traffic from the DB (bytes/sec) |
| bdb_egress_bytes_max | Highest value of rate of outgoing network traffic from the DB (bytes/sec) |
| bdb_evicted_objects | Rate of key evictions from DB (evictions/sec) |
| bdb_evicted_objects_max | Highest value of rate of key evictions from DB (evictions/sec) |
| bdb_expired_objects | Rate keys expired in DB (expirations/sec) |
| bdb_expired_objects_max | Highest value of rate keys expired in DB (expirations/sec) |
| bdb_fork_cpu_system | % cores utilization in system mode for all redis shard fork child processes of this database |
| bdb_fork_cpu_system_max | Highest value of % cores utilization in system mode for all redis shard fork child processes of this database |
| bdb_fork_cpu_user | % cores utilization in user mode for all redis shard fork child processes of this database |
| bdb_fork_cpu_user_max | Highest value of % cores utilization in user mode for all redis shard fork child processes of this database |
| bdb_ingress_bytes | Rate of incoming network traffic to DB (bytes/sec) |
| bdb_ingress_bytes_max | Highest value of rate of incoming network traffic to DB (bytes/sec) |
| bdb_instantaneous_ops_per_sec | Request rate handled by all shards of DB (ops/sec) |
| bdb_main_thread_cpu_system | % cores utilization in system mode for all redis shard main threas of this database |
| bdb_main_thread_cpu_system_max | Highest value of % cores utilization in system mode for all redis shard main threas of this database |
| bdb_main_thread_cpu_user | % cores utilization in user mode for all redis shard main threads of this database |
| bdb_main_thread_cpu_user_max | Highest value of % cores utilization in user mode for all redis shard main threads of this database |
| bdb_mem_frag_ratio | RAM fragmentation ratio (RSS / allocated RAM) |
| bdb_mem_size_lua | Redis lua scripting heap size (bytes) |
| bdb_memory_limit | Configured RAM limit for the database |
| bdb_monitor_sessions_count | Number of client connected in monitor mode to the DB |
| bdb_no_of_keys | Number of keys in DB |
| bdb_other_req | Rate of other (non read/write) requests on DB (ops/sec) |
| bdb_other_req_max | Highest value of rate of other (non read/write) requests on DB (ops/sec) |
| bdb_other_res | Rate of other (non read/write) responses on DB (ops/sec) |
| bdb_other_res_max | Highest value of rate of other (non read/write) responses on DB (ops/sec) |
| bdb_pubsub_channels | Count the pub/sub channels with subscribed clients |
| bdb_pubsub_channels_max | Highest value of count the pub/sub channels with subscribed clients |
| bdb_pubsub_patterns | Count the pub/sub patterns with subscribed clients |
| bdb_pubsub_patterns_max | Highest value of count the pub/sub patterns with subscribed clients |
| bdb_read_hits | Rate of read operations accessing an existing key (ops/sec) |
| bdb_read_hits_max | Highest value of rate of read operations accessing an existing key (ops/sec) |
| bdb_read_misses | Rate of read operations accessing a non-existing key (ops/sec) |
| bdb_read_misses_max | Highest value of rate of read operations accessing a non-existing key (ops/sec) |
| bdb_read_req | Rate of read requests on DB (ops/sec) |
| bdb_read_req_max | Highest value of rate of read requests on DB (ops/sec) |
| bdb_read_res | Rate of read responses on DB (ops/sec) |
| bdb_read_res_max | Highest value of rate of read responses on DB (ops/sec) |
| bdb_shard_cpu_system | % cores utilization in system mode for all redis shard processes of this database |
| bdb_shard_cpu_system_max | Highest value of % cores utilization in system mode for all redis shard processes of this database |
| bdb_shard_cpu_user | % cores utilization in user mode for the redis shard process |
| bdb_shard_cpu_user_max | Highest value of % cores utilization in user mode for the redis shard process |
| bdb_shards_used | Used shard count by database and by shard type (ram / flash) |
| bdb_total_connections_received | Rate of new client connections to DB (connections/sec) |
| bdb_total_connections_received_max | Highest value of rate of new client connections to DB (connections/sec) |
| bdb_total_req | Rate of all requests on DB (ops/sec) |
| bdb_total_req_max | Highest value of rate of all requests on DB (ops/sec) |
| bdb_total_res | Rate of all responses on DB (ops/sec) |
| bdb_total_res_max | Highest value of rate of all responses on DB (ops/sec) |
| bdb_up | Database is up and running |
| bdb_used_memory | Memory used by db (in bigredis this includes flash) (bytes) |
| bdb_write_hits | Rate of write operations accessing an existing key (ops/sec) |
| bdb_write_hits_max | Highest value of rate of write operations accessing an existing key (ops/sec) |
| bdb_write_misses | Rate of write operations accessing a non-existing key (ops/sec) |
| bdb_write_misses_max | Highest value of rate of write operations accessing a non-existing key (ops/sec) |
| bdb_write_req | Rate of write requests on DB (ops/sec) |
| bdb_write_req_max | Highest value of rate of write requests on DB (ops/sec) |
| bdb_write_res | Rate of write responses on DB (ops/sec) |
| bdb_write_res_max | Highest value of rate of write responses on DB (ops/sec) |
| no_of_expires | Current number of volatile keys in the database |
Node metrics
| Metric | Description |
|---|---|
| node_available_flash | Available flash in node (bytes) |
| node_available_flash_no_overbooking | Available flash in node (bytes), without taking into account overbooking |
| node_available_memory | Amount of free memory in node (bytes) that is available for database provisioning |
| node_available_memory_no_overbooking | Available ram in node (bytes) without taking into account overbooking |
| node_avg_latency | Average latency of requests handled by endpoints on the node in milliseconds; returned only when there is traffic |
| node_bigstore_free | Sum of free space of back-end flash (used by flash DB's [BigRedis]) on all cluster nodes (bytes); returned only when BigRedis is enabled |
| node_bigstore_iops | Rate of i/o operations against back-end flash for all shards which are part of a flash based DB (BigRedis) in cluster (ops/sec); returned only when BigRedis is enabled |
| node_bigstore_kv_ops | Rate of value read/write operations against back-end flash for all shards which are part of a flash based DB (BigRedis) in cluster (ops/sec); returned only when BigRedis is enabled |
| node_bigstore_throughput | Throughput i/o operations against back-end flash for all shards which are part of a flash based DB (BigRedis) in cluster (bytes/sec); returned only when BigRedis is enabled |
| node_cert_expiration_seconds | Certificate expiration (in seconds) per given node; read more about certificates in Redis Enterprise and monitoring certificates expiration |
| node_conns | Number of clients connected to endpoints on node |
| node_cpu_idle | CPU idle time portion (0-1, multiply by 100 to get percent) |
| node_cpu_idle_max | Highest value of CPU idle time portion (0-1, multiply by 100 to get percent) |
| node_cpu_idle_median | Average value of CPU idle time portion (0-1, multiply by 100 to get percent) |
| node_cpu_idle_min | Lowest value of CPU idle time portion (0-1, multiply by 100 to get percent) |
| node_cpu_system | CPU time portion spent in kernel (0-1, multiply by 100 to get percent) |
| node_cpu_system_max | Highest value of CPU time portion spent in kernel (0-1, multiply by 100 to get percent) |
| node_cpu_system_median | Average value of CPU time portion spent in kernel (0-1, multiply by 100 to get percent) |
| node_cpu_system_min | Lowest value of CPU time portion spent in kernel (0-1, multiply by 100 to get percent) |
| node_cpu_user | CPU time portion spent by users-pace processes (0-1, multiply by 100 to get percent) |
| node_cpu_user_max | Highest value of CPU time portion spent by users-pace processes (0-1, multiply by 100 to get percent) |
| node_cpu_user_median | Average value of CPU time portion spent by users-pace processes (0-1, multiply by 100 to get percent) |
| node_cpu_user_min | Lowest value of CPU time portion spent by users-pace processes (0-1, multiply by 100 to get percent) |
| node_cur_aof_rewrites | Number of aof rewrites that are currently performed by shards on this node |
| node_egress_bytes | Rate of outgoing network traffic to node (bytes/sec) |
| node_egress_bytes_max | Highest value of rate of outgoing network traffic to node (bytes/sec) |
| node_egress_bytes_median | Average value of rate of outgoing network traffic to node (bytes/sec) |
| node_egress_bytes_min | Lowest value of rate of outgoing network traffic to node (bytes/sec) |
| node_ephemeral_storage_avail | Disk space available to RLEC processes on configured ephemeral disk (bytes) |
| node_ephemeral_storage_free | Free disk space on configured ephemeral disk (bytes) |
| node_free_memory | Free memory in node (bytes) |
| node_ingress_bytes | Rate of incoming network traffic to node (bytes/sec) |
| node_ingress_bytes_max | Highest value of rate of incoming network traffic to node (bytes/sec) |
| node_ingress_bytes_median | Average value of rate of incoming network traffic to node (bytes/sec) |
| node_ingress_bytes_min | Lowest value of rate of incoming network traffic to node (bytes/sec) |
| node_persistent_storage_avail | Disk space available to RLEC processes on configured persistent disk (bytes) |
| node_persistent_storage_free | Free disk space on configured persistent disk (bytes) |
| node_provisional_flash | Amount of flash available for new shards on this node, taking into account overbooking, max redis servers, reserved flash and provision and migration thresholds (bytes) |
| node_provisional_flash_no_overbooking | Amount of flash available for new shards on this node, without taking into account overbooking, max redis servers, reserved flash and provision and migration thresholds (bytes) |
| node_provisional_memory | Amount of RAM that is available for provisioning to databases out of the total RAM allocated for databases |
| node_provisional_memory_no_overbooking | Amount of RAM that is available for provisioning to databases out of the total RAM allocated for databases, without taking into account overbooking |
| node_total_req | Request rate handled by endpoints on node (ops/sec) |
| node_up | Node is part of the cluster and is connected |
Cluster metrics
| Metric | Description |
|---|---|
| cluster_shards_limit | Total shard limit by the license by shard type (ram / flash) |
Proxy metrics
| Metric | Description |
|---|---|
| listener_acc_latency | Accumulative latency (sum of the latencies) of all types of commands on DB. For the average latency, divide this value by listener_total_res |
| listener_acc_latency_max | Highest value of accumulative latency of all types of commands on DB |
| listener_acc_other_latency | Accumulative latency (sum of the latencies) of commands that are type "other" on DB. For the average latency, divide this value by listener_other_res |
| listener_acc_other_latency_max | Highest value of accumulative latency of commands that are type "other" on DB |
| listener_acc_read_latency | Accumulative latency (sum of the latencies) of commands that are type "read" on DB. For the average latency, divide this value by listener_read_res |
| listener_acc_read_latency_max | Highest value of accumulative latency of commands that are type "read" on DB |
| listener_acc_write_latency | Accumulative latency (sum of the latencies) of commands that are type "write" on DB. For the average latency, divide this value by listener_write_res |
| listener_acc_write_latency_max | Highest value of accumulative latency of commands that are type "write" on DB |
| listener_auth_cmds | Number of memcached AUTH commands sent to the DB |
| listener_auth_cmds_max | Highest value of number of memcached AUTH commands sent to the DB |
| listener_auth_errors | Number of error responses to memcached AUTH commands |
| listener_auth_errors_max | Highest value of number of error responses to memcached AUTH commands |
| listener_cmd_flush | Number of memcached FLUSH_ALL commands sent to the DB |
| listener_cmd_flush_max | Highest value of number of memcached FLUSH_ALL commands sent to the DB |
| listener_cmd_get | Number of memcached GET commands sent to the DB |
| listener_cmd_get_max | Highest value of number of memcached GET commands sent to the DB |
| listener_cmd_set | Number of memcached SET commands sent to the DB |
| listener_cmd_set_max | Highest value of number of memcached SET commands sent to the DB |
| listener_cmd_touch | Number of memcached TOUCH commands sent to the DB |
| listener_cmd_touch_max | Highest value of number of memcached TOUCH commands sent to the DB |
| listener_conns | Number of clients connected to the endpoint |
| listener_egress_bytes | Rate of outgoing network traffic to the endpoint (bytes/sec) |
| listener_egress_bytes_max | Highest value of rate of outgoing network traffic to the endpoint (bytes/sec) |
| listener_ingress_bytes | Rate of incoming network traffic to the endpoint (bytes/sec) |
| listener_ingress_bytes_max | Highest value of rate of incoming network traffic to the endpoint (bytes/sec) |
| listener_last_req_time | Time of last command sent to the DB |
| listener_last_res_time | Time of last response sent from the DB |
| listener_max_connections_exceeded | Number of times the Number of clients connected to the db at the same time has exeeded the max limit |
| listener_max_connections_exceeded_max | Highest value of number of times the Number of clients connected to the db at the same time has exeeded the max limit |
| listener_monitor_sessions_count | Number of client connected in monitor mode to the endpoint |
| listener_other_req | Rate of other (non read/write) requests on the endpoint (ops/sec) |
| listener_other_req_max | Highest value of rate of other (non read/write) requests on the endpoint (ops/sec) |
| listener_other_res | Rate of other (non read/write) responses on the endpoint (ops/sec) |
| listener_other_res_max | Highest value of rate of other (non read/write) responses on the endpoint (ops/sec) |
| listener_other_started_res | Number of responses sent from the DB of type "other" |
| listener_other_started_res_max | Highest value of number of responses sent from the DB of type "other" |
| listener_read_req | Rate of read requests on the endpoint (ops/sec) |
| listener_read_req_max | Highest value of rate of read requests on the endpoint (ops/sec) |
| listener_read_res | Rate of read responses on the endpoint (ops/sec) |
| listener_read_res_max | Highest value of rate of read responses on the endpoint (ops/sec) |
| listener_read_started_res | Number of responses sent from the DB of type "read" |
| listener_read_started_res_max | Highest value of number of responses sent from the DB of type "read" |
| listener_total_connections_received | Rate of new client connections to the endpoint (connections/sec) |
| listener_total_connections_received_max | Highest value of rate of new client connections to the endpoint (connections/sec) |
| listener_total_req | Request rate handled by the endpoint (ops/sec) |
| listener_total_req_max | Highest value of rate of all requests on the endpoint (ops/sec) |
| listener_total_res | Rate of all responses on the endpoint (ops/sec) |
| listener_total_res_max | Highest value of rate of all responses on the endpoint (ops/sec) |
| listener_total_started_res | Number of responses sent from the DB of all types |
| listener_total_started_res_max | Highest value of number of responses sent from the DB of all types |
| listener_write_req | Rate of write requests on the endpoint (ops/sec) |
| listener_write_req_max | Highest value of rate of write requests on the endpoint (ops/sec) |
| listener_write_res | Rate of write responses on the endpoint (ops/sec) |
| listener_write_res_max | Highest value of rate of write responses on the endpoint (ops/sec) |
| listener_write_started_res | Number of responses sent from the DB of type "write" |
| listener_write_started_res_max | Highest value of number of responses sent from the DB of type "write" |
Replication metrics
| Metric | Description |
|---|---|
| bdb_replicaof_syncer_ingress_bytes | Rate of compressed incoming network traffic to Replica Of DB (bytes/sec) |
| bdb_replicaof_syncer_ingress_bytes_decompressed | Rate of decompressed incoming network traffic to Replica Of DB (bytes/sec) |
| bdb_replicaof_syncer_local_ingress_lag_time | Lag time between the source and the destination for Replica Of traffic (ms) |
| bdb_replicaof_syncer_status | Syncer status for Replica Of traffic; 0 = in-sync, 1 = syncing, 2 = out of sync |
| bdb_crdt_syncer_ingress_bytes | Rate of compressed incoming network traffic to CRDB (bytes/sec) |
| bdb_crdt_syncer_ingress_bytes_decompressed | Rate of decompressed incoming network traffic to CRDB (bytes/sec) |
| bdb_crdt_syncer_local_ingress_lag_time | Lag time between the source and the destination (ms) for CRDB traffic |
| bdb_crdt_syncer_status | Syncer status for CRDB traffic; 0 = in-sync, 1 = syncing, 2 = out of sync |
Shard metrics
| Metric | Description |
|---|---|
| redis_active_defrag_running | Automatic memory defragmentation current aggressiveness (% cpu) |
| redis_allocator_active | Total used memory including external fragmentation |
| redis_allocator_allocated | Total allocated memory |
| redis_allocator_resident | Total resident memory (RSS) |
| redis_aof_last_cow_size | Last AOFR, CopyOnWrite memory |
| redis_aof_rewrite_in_progress | The number of simultaneous AOF rewrites that are in progress |
| redis_aof_rewrites | Number of AOF rewrites this process executed |
| redis_aof_delayed_fsync | Number of times an AOF fsync caused delays in the redis main thread (inducing latency); This can indicate that the disk is slow or overloaded |
| redis_blocked_clients | Count the clients waiting on a blocking call |
| redis_connected_clients | Number of client connections to the specific shard |
| redis_connected_slaves | Number of connected slaves |
| redis_db0_avg_ttl | Average TTL of all volatile keys |
| redis_db0_expires | Total count of volatile keys |
| redis_db0_keys | Total key count |
| redis_evicted_keys | Keys evicted so far (since restart) |
| redis_expire_cycle_cpu_milliseconds | The cumulative amount of time spent on active expiry cycles |
| redis_expired_keys | Keys expired so far (since restart) |
| redis_forwarding_state | Shard forwarding state (on or off) |
| redis_keys_trimmed | The number of keys that were trimmed in the current or last resharding process |
| redis_keyspace_read_hits | Number of read operations accessing an existing keyspace |
| redis_keyspace_read_misses | Number of read operations accessing an non-existing keyspace |
| redis_keyspace_write_hits | Number of write operations accessing an existing keyspace |
| redis_keyspace_write_misses | Number of write operations accessing an non-existing keyspace |
| redis_master_link_status | Indicates if the replica is connected to its master |
| redis_master_repl_offset | Number of bytes sent to replicas by the shard; Calculate the throughput for a time period by comparing the value at different times |
| redis_master_sync_in_progress | The master shard is synchronizing (1 true |
| redis_max_process_mem | Current memory limit configured by redis_mgr according to node free memory |
| redis_maxmemory | Current memory limit configured by redis_mgr according to db memory limits |
| redis_mem_aof_buffer | Current size of AOF buffer |
| redis_mem_clients_normal | Current memory used for input and output buffers of non-replica clients |
| redis_mem_clients_slaves | Current memory used for input and output buffers of replica clients |
| redis_mem_fragmentation_ratio | Memory fragmentation ratio (1.3 means 30% overhead) |
| redis_mem_not_counted_for_evict | Portion of used_memory (in bytes) that's not counted for eviction and OOM error |
| redis_mem_replication_backlog | Size of replication backlog |
| redis_module_fork_in_progress | A binary value that indicates if there is an active fork spawned by a module (1) or not (0) |
| redis_process_cpu_system_seconds_total | Shard Process system CPU time spent in seconds |
| redis_process_cpu_usage_percent | Shard Process cpu usage precentage |
| redis_process_cpu_user_seconds_total | Shard user CPU time spent in seconds |
| redis_process_main_thread_cpu_system_seconds_total | Shard main thread system CPU time spent in seconds |
| redis_process_main_thread_cpu_user_seconds_total | Shard main thread user CPU time spent in seconds |
| redis_process_max_fds | Shard Maximum number of open file descriptors |
| redis_process_open_fds | Shard Number of open file descriptors |
| redis_process_resident_memory_bytes | Shard Resident memory size in bytes |
| redis_process_start_time_seconds | Shard Start time of the process since unix epoch in seconds |
| redis_process_virtual_memory_bytes | Shard virtual memory in bytes |
| redis_rdb_bgsave_in_progress | Indication if bgsave is currently in progress |
| redis_rdb_last_cow_size | Last bgsave (or SYNC fork) used CopyOnWrite memory |
| redis_rdb_saves | Total count of bgsaves since process was restarted (including replica fullsync and persistence) |
| redis_repl_touch_bytes | Number of bytes sent to replicas as TOUCH commands by the shard as a result of a READ command that was processed; Calculate the throughput for a time period by comparing the value at different times |
| redis_total_commands_processed | Number of commands processed by the shard; Calculate the number of commands for a time period by comparing the value at different times |
| redis_total_connections_received | Number of connections received by the shard; Calculate the number of connections for a time period by comparing the value at different times |
| redis_total_net_input_bytes | Number of bytes received by the shard; Calculate the throughput for a time period by comparing the value at different times |
| redis_total_net_output_bytes | Number of bytes sent by the shard; Calculate the throughput for a time period by comparing the value at different times |
| redis_up | Shard is up and running |
| redis_used_memory | Memory used by shard (in bigredis this includes flash) (bytes) |