{ "id": "alerts-events", "title": "Alerts and events", "url": "https://redis.io/docs/latest/operate/rs/7.8/clusters/logging/alerts-events/", "summary": "Logged alerts and events", "content": "\nThe following alerts and events can appear in `syslog` and the Cluster Manager UI logs.\n\n| Alert/Event | UI message | Severity | Notes |\n|-----------------------------------|----------------------------------------------------------------|-------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| aof_slow_disk_io | Redis performance is degraded as a result of disk I/O limits | True: error, False: info | node alert |\n| authentication_err | | error | bdb event; Replica of - error authenticating with the source database |\n| backup_delayed | Periodic backup has been delayed for longer than `\u003cthreshold\u003e` minutes | True: warning, False: info | bdb alert; Has threshold parameter in the data: section of the log entry. |\n| backup_failed | | error | bdb event |\n| backup_started | | info | bdb event |\n| backup_succeeded | | info | bdb event |\n| bdb_created | | info | bdb event |\n| bdb_deleted | | info | bdb event |\n| bdb_updated | | info | bdb event; Indicates that a bdb configuration has been updated |\n| checks_error | | error | node event; Indicates that one or more node checks have failed |\n| cluster_updated | | info | cluster event; Indicates that cluster settings have been updated |\n| compression_unsup_err | | error | bdb event; Replica of - Compression not supported by sync destination |\n| crossslot_err | | error | bdb event; Replica of - sharded destination does not support operation executed on source |\n| cpu_utilization | CPU utilization has reached `\u003cthreshold\u003e`% | True: warning, False: info | node alert; Has global_threshold parameter in the key/value section of the log entry. |\n| even_node_count | True high availability requires an odd number of nodes | True: warning, False: info | cluster alert |\n| ephemeral_storage | Ephemeral storage has reached `\u003cthreshold\u003e`% of its capacity | True: warning, False: info | node alert; Has global_threshold parameter in the key/value section of the log entry. |\n| export_failed | | error | bdb event |\n| export_started | | info | bdb event |\n| export_succeeded | | info | bdb event |\n| failed | Node failed | critical | node alert |\n| free_flash | Flash storage has reached `\u003cthreshold\u003e`% of its capacity | True: warning, False: info | node alert; Has global_threshold parameter in the key/value section of the log entry. |\n| high_latency | Latency is higher than `\u003cthreshold\u003e` milliseconds | True: warning, False: info | bdb alert; Has threshold parameter in the key/value section of the log entry. |\n| high_syncer_lag | Replica of - sync lag is higher than `\u003cthreshold\u003e` seconds | True: warning, False: info | bdb alert; Has threshold parameter in the key/value section of the log entry. |\n| high_throughput | Throughput is higher than `\u003cthreshold\u003e` RPS (requests per second) | True: warning, False: info | bdb alert; Has threshold parameter in the key/value section of the log entry. |\n| import_failed | | error | bdb event |\n| import_started | | info | bdb event |\n| import_succeeded | | info | bdb event |\n| inconsistent_redis_sw | Not all databases are running the same open source version | True: warning, False: info | cluster alert |\n| inconsistent_rl_sw | Not all nodes in the cluster are running the same Redis Labs Enterprise Cluster version | True: warning, False: info | cluster alert |\n| insufficient_disk_aofrw | Node has insufficient disk space for AOF rewrite | True: error, False: info | node alert |\n| internal_bdb | Issues with internal cluster databases | True: warning, False: info | cluster alert |\n| license_added | | info | cluster event |\n| license_deleted | | info | cluster event |\n| license_updated | | info | cluster event |\n| low_throughput | Throughput is lower than `\u003cthreshold\u003e` RPS (requests per second) | True: warning, False: info | bdb alert; Has threshold parameter in the key/value section of the log entry. |\n| memory | Node memory has reached `\u003cthreshold\u003e`% of its capacity | True: warning, False: info | node alert; Has global_threshold parameter in the key/value section of the log entry. |\n| multiple_nodes_down | Multiple cluster nodes are down - this might cause data loss | True: warning, False: info | cluster alert |\n| net_throughput | Network throughput has reached `\u003cthreshold\u003e`MB/s | True: warning, False: info | node alert; Has global_threshold parameter in the key/value section of the log entry. |\n| node_abort_remove_request | | info | node event |\n| node_joined | Node joined | info | cluster event |\n| node_operation_failed | Node operation failed | error | cluster event |\n| node_remove_abort_completed | Node removed | info | cluster event; The remove node is a process that can fail and can also be aborted. If aborted, the abort can succeed or fail. |\n| node_remove_abort_failed | Node removed | error | cluster event; The remove node is a process that can fail and can also be aborted. If aborted, the abort can succeed or fail. |\n| node_remove_completed | Node removed | info | cluster event; The remove node is a process that can fail and can also be aborted. If aborted, the abort can succeed or fail. |\n| node_remove_failed | Node removed | error | cluster event; The remove node is a process that can fail and can also be aborted. If aborted, the abort can succeed or fail. |\n| node_remove_request | | info | node event |\n| ocsp_query_failed | Failed querying OCSP server | True: error, False: info | cluster alert |\n| ocsp_status_revoked | OCSP status revoked | True: error, False: info | cluster alert |\n| oom_err | | error | bdb event; Replica of - Replication source/target out of memory |\n| persistent_storage | Persistent storage has reached `\u003cthreshold\u003e`% of its capacity | True: warning, False: info | node alert; Has global_threshold parameter in the key/value section of the log entry. |\n| ram_dataset_overhead | RAM Dataset overhead in a shard has reached `\u003cthreshold\u003e`% of its RAM limit | True: warning, False: info | bdb alert; Has threshold parameter in the key/value section of the log entry. |\n| ram_overcommit | Cluster capacity is less than total memory allocated to its databases | True: error, False: info | cluster alert |\n| ram_values | Percent of values in a shard's RAM is lower than `\u003cthreshold\u003e`% of its key count | True: warning, False: info | bdb alert; Has threshold parameter in the key/value section of the log entry. |\n| shard_num_ram_values | Number of values in a shard's RAM is lower than `\u003cthreshold\u003e` values | True: warning, False: info | bdb alert; Has threshold parameter in the key/value section of the log entry. |\n| size | Dataset size has reached `\u003cthreshold\u003e`% of the memory limit | True: warning, False: info | bdb alert; Has threshold parameter in the key/value section of the log entry. |\n| syncer_connection_error | | error | bdb alert |\n| syncer_general_error | | error | bdb alert |\n| too_few_nodes_for_replication | Database replication requires at least two nodes in cluster | True: warning, False: info | cluster alert |\n| user_created | | info | user event |\n| user_deleted | | info | user event |\n| user_updated | | info | user event; Indicates that a user configuration has been updated |\n", "tags": ["docs","operate","rs"], "last_updated": "2026-04-01T08:10:08-05:00" }