--- Title: Alerts and events alwaysopen: false categories: - docs - operate - rs description: Logged alerts and events linkTitle: Alerts and events weight: 50 --- The following alerts and events can appear in `syslog` and the Cluster Manager UI logs. ## Alerts | Alert | UI message | Severity | Notes | |-------|------------|----------|-------| | aof_slow_disk_io | Redis performance is degraded as a result of disk I/O limits | True: error, False: info | Node alert | | authentication_err | Error authenticating with the source database | error | BDB event | | backup_delayed | Periodic backup has been delayed for longer than `` minutes | True: warning, False: info | BDB alert; Has threshold parameter in the data section of the log entry | | cpu_utilization | CPU utilization has reached ``% | True: warning, False: info | Node alert; Has global_threshold parameter in the key/value section of the log entry | | even_node_count | True high availability requires an odd number of nodes | True: warning, False: info | Cluster alert | | ephemeral_storage | Ephemeral storage has reached ``% of its capacity | True: warning, False: info | Node alert; Has global_threshold parameter in the key/value section of the log entry | | free_flash | Flash storage has reached ``% of its capacity | True: warning, False: info | Node alert; Has global_threshold parameter in the key/value section of the log entry | | high_latency | Latency is higher than `` milliseconds | True: warning, False: info | BDB alert; Has threshold parameter in the key/value section of the log entry | | high_syncer_lag | Sync lag is higher than `` seconds | True: warning, False: info | BDB alert; Has threshold parameter in the key/value section of the log entry | | high_throughput | Throughput is higher than `` RPS (requests per second) | True: warning, False: info | BDB alert; Has threshold parameter in the key/value section of the log entry | | inconsistent_rl_sw | Not all nodes in the cluster are running the same Redis Labs Enterprise Cluster version | True: warning, False: info | Cluster alert | | insufficient_disk_aofrw | Node has insufficient disk space for AOF rewrite | True: error, False: info | Node alert | | memory | Node memory has reached ``% of its capacity | True: warning, False: info | Node alert; Has global_threshold parameter in the key/value section of the log entry | | multiple_nodes_down | Multiple cluster nodes are down - this might cause data loss | True: warning, False: info | Cluster alert | | net_throughput | Network throughput has reached `` MB/s | True: warning, False: info | Node alert; Has global_threshold parameter in the key/value section of the log entry | | ocsp_query_failed | Failed querying OCSP server | True: error, False: info | Cluster alert | | ocsp_status_revoked | OCSP status revoked | True: error, False: info | Cluster alert | | persistent_storage | Persistent storage has reached ``% of its capacity | True: warning, False: info | Node alert; Has global_threshold parameter in the key/value section of the log entry | | ram_dataset_overhead | RAM Dataset overhead in a shard has reached ``% of its RAM limit | True: warning, False: info | BDB alert; Has threshold parameter in the key/value section of the log entry | | ram_overcommit | Cluster capacity is less than total memory allocated to its databases | True: error, False: info | Cluster alert | | ram_values | Percent of values in a shard's RAM is lower than ``% of its key count | True: warning, False: info | BDB alert; Has threshold parameter in the key/value section of the log entry | | shard_num_ram_values | Number of values in a shard's RAM is lower than `` values | True: warning, False: info | BDB alert; Has threshold parameter in the key/value section of the log entry | | size | Dataset size has reached ``% of the memory limit | True: warning, False: info | BDB alert; Has threshold parameter in the key/value section of the log entry | | syncer_connection_error | Syncer connection error | error | BDB alert | | syncer_general_error | Syncer general error | error | BDB alert | | too_few_nodes_for_replication | Database replication requires at least two nodes in cluster | True: warning, False: info | Cluster alert | ## Events | Event | UI message | Severity | Notes | |-------|------------|----------|-------| | backup_failed | Backup failed | error | BDB event | | backup_started | Backup started | info | BDB event | | backup_succeeded | Backup succeeded | info | BDB event | | bdb_created | Database created | info | BDB event | | bdb_deleted | Database deleted | info | BDB event | | bdb_updated | Database updated | info | BDB event; Indicates that a BDB configuration has been updated | | checks_error | Node checks error | error | Node event; Indicates that one or more node checks have failed | | cluster_updated | Cluster settings updated | info | Cluster event; Indicates that cluster settings have been updated | | compression_unsup_err | Compression not supported by sync destination | error | BDB event | | crossslot_err | Sharded destination does not support operation executed on source | error | BDB event | | export_failed | Export failed | error | BDB event | | export_started | Export started | info | BDB event | | export_succeeded | Export succeeded | info | BDB event | | import_failed | Import failed | error | BDB event | | import_started | Import started | info | BDB event | | import_succeeded | Import succeeded | info | BDB event | | license_added | License added | info | Cluster event | | license_deleted | License deleted | info | Cluster event | | license_updated | License updated | info | Cluster event | | node_abort_remove_request | Node abort remove request | info | Node event | | node_joined | Node joined | info | Cluster event | | node_operation_failed | Node operation failed | error | Cluster event | | node_remove_abort_completed | Node remove abort completed | info | Cluster event; Node remove is a process that can fail and can also be aborted. If aborted, the abort can succeed or fail | | node_remove_abort_failed | Node remove abort failed | error | Cluster event; Node remove is a process that can fail and can also be aborted. If aborted, the abort can succeed or fail | | node_remove_completed | Node removed | info | Cluster event; Node remove is a process that can fail and can also be aborted. If aborted, the abort can succeed or fail | | node_remove_failed | Node removed | error | Cluster event; Node remove is a process that can fail and can also be aborted. If aborted, the abort can succeed or fail | | node_remove_request | Node remove request | info | Node event | | user_created | User created | info | User event | | user_deleted | User deleted | info | User event | | user_updated | User updated | info | User event; Indicates that a user configuration has been updated |