Redis 指标

Prometheus 插件: redis (opens in a new tab)
Prometheus 预定义图表: Grafana Redis (opens in a new tab)

注：指标后面有的标志，表示该平台提供了预定义图表。

描述	指标
因等待 BLPOP 而被阻塞的客户端数量	MegaEase`redis-blocked-clients-metric` Datadog`redis.clients.blocked` Prometheus `redis_blocked_clients` Telegraf `redis_blocked_clients` MegaEase Dashboard - `redis-blocked-clients-max-metric`
连接到 Redis 的客户端数量	MegaEase`redis-clients-metric` Datadog`redis.net.clients` Prometheus `redis_connected_clients` Telegraf `redis_clients` MegaEase Dashboard - `redis-clients-avg-metric` - `redis-clients-max-metric` - `redis-clients-min-metric`
连接到当前主实例的从服务器数量	MegaEase`redis-connected-slaves-metric` Datadog`redis.net.slaves` Prometheus `redis_connected_slaves` Telegraf `redis_connected_slaves` MegaEase Dashboard - `redis-connected-slaves-max-metric`
因达到最大内存限制而被删除的键数量	MegaEase`redis-evicted-keys-metric` Datadog`redis.keys.evicted` Prometheus `redis_evicted_keys` Telegraf `redis_evicted_keys` MegaEase Dashboard - `redis-evicted-keys-ratio-metric`
键过期事件的总数	MegaEase`redis-expired-keys-metric` Datadog`redis.keys.expired` Prometheus `redis_expired_keys` Telegraf `redis_expired_keys` MegaEase Dashboard - `redis-expired-keys-ratio-metric`
每秒钟处理的命令总数	MegaEase`redis-instantaneous-ops-per-sec-metric` Datadog`redis.net.commands.instantaneous_ops_per_sec` Prometheus `bdb_instantaneous_ops_per_sec` Telegraf `redis_instantaneous_ops_per_sec` MegaEase Dashboard - `redis-instantaneous-ops-per-sec-max-metric` - `redis-instantaneous-ops-per-sec-avg-metric` - `redis-instantaneous-ops-per-sec-min-metric`
keyspace_hits / (keyspace_hits + keyspace_misses)，表示命中率	MegaEase`redis-keyspace-hitrate-metric` Datadog`不支持` Prometheus `不支持` Telegraf `redis_keyspace_hitrate` MegaEase Dashboard - `redis-keyspace-hitrate-min-metric`
成功查找主字典中键的次数	MegaEase`redis-keyspace-hits-metric` Datadog`redis.stats.keyspace_hits` Prometheus `redis_keyspace_read_hits redis_keyspace_write_hits` Telegraf `redis_keyspace_hits` MegaEase Dashboard - `redis-keyspace-hits-ratio-metric`
数据库中的键总数	MegaEase`redis-keyspace-keys-metric` Datadog`redis.keys` Prometheus `不支持` Telegraf `redis_keyspace_keys` MegaEase Dashboard - `redis-keyspace-keys-max-by-database-metric`
查找主字典中键失败的次数	MegaEase`redis-keyspace-misses-metric` Datadog`redis.stats.keyspace_misses` Prometheus `redis_keyspace_read_misses redis_keyspace_write_misses` Telegraf `redis_keyspace_misses` MegaEase Dashboard - `redis-keyspace-misses-ratio-metric`
主服务器与从服务器之间的链接中断时长（秒）	MegaEase`redis-master-link-down-since-seconds-metric` Datadog`redis.replication.master_link_down_since_seconds` Prometheus `不支持` Telegraf `redis_master_link_down_since_seconds` MegaEase Dashboard - `redis-master-link-down-since-seconds-max-metric` - `redis-master-link-down-since-seconds-min-metric` - `redis-master-link-down-since-seconds-avg-metric`
从服务器在复制主服务器的数据时的偏移量	MegaEase`redis-master-repl-offset-metric` Datadog`redis.replication.master_repl_offset` Prometheus `redis_master_repl_offset` Telegraf `redis_master_repl_offset` MegaEase Dashboard - `redis-master-repl-offset-min-metric` - `redis-master-repl-offset-avg-metric` - `redis-master-repl-offset-max-metric`
操作系统分配的内存与 Redis 内存使用量的比率	MegaEase`redis-mem-fragmentation-ratio-metric` Datadog`redis.mem.fragmentation_ratio` Prometheus `redis_mem_fragmentation_ratio` Telegraf `redis_mem_fragmentation_ratio` MegaEase Dashboard - `redis-mem-fragmentation-ratio-min-metric`
Redis 服务器从网络中读取的字节数	MegaEase`redis-net-input-throughput-bytes-metric` Datadog`不支持` Prometheus `redis_total_net_input_bytes` Telegraf `redis_net_input_throughput_bytes` MegaEase Dashboard - `redis-net-input-throughput-bytes-ratio-metric`
Redis 服务器向网络中写入的字节数	MegaEase`redis-net-output-throughput-bytes-metric` Datadog`不支持` Prometheus `redis_total_net_output_bytes` Telegraf `redis_net_output_throughput_bytes` MegaEase Dashboard - `redis-net-output-throughput-bytes-ratio-metric`
上一次 Redis 内存快照保存之后更改的数据库次数	MegaEase`redis-rdb-changes-since-last-save-metric` Datadog`redis.rdb.changes_since_last` Prometheus `不支持` Telegraf `redis_rdb_changes_since_last_save` MegaEase Dashboard - `redis-rdb-changes-since-last-save-ratio-metric`
上一次 Redis 内存快照保存的 Unix 时间戳	MegaEase`redis-rdb-last-save-time-metric` Datadog`redis.rdb.last_bgsave_time` Prometheus `不支持` Telegraf `redis_rdb_last_save_time` MegaEase Dashboard - `redis-rdb-last-save-time-max-metric`
因达到最大客户端连接数而被拒绝的连接数量	MegaEase`redis-rejected-connections-metric` Datadog`redis.net.rejected` Prometheus `不支持` Telegraf `redis_rejected_connections` MegaEase Dashboard - `redis-rejected-connections-ratio-metric`
服务器处理的命令总数	MegaEase`redis-total-commands-processed-metric` Datadog`redis.net.commands` Prometheus `redis_total_commands_processed` Telegraf `redis_total_commands_processed` MegaEase Dashboard - `redis-total-commands-processed-ratio-metric`
服务器接受的连接总数	MegaEase`redis-total-connections-received-metric` Datadog`redis.net.connections` Prometheus `bdb_total_connections_received` Telegraf `redis_total_connections_received` MegaEase Dashboard - `redis-total-connections-received-ratio-metric`
操作系统分配的内存总量（字节）	MegaEase`redis-total-system-memory-metric` Datadog`redis.mem.maxmemory` Prometheus `redis_maxmemory` Telegraf `redis_total_system_memory` MegaEase Dashboard - `redis-total-system-memory-max-metric`
Redis 使用的内存量（字节）	MegaEase`redis-used-memory-metric` Datadog`redis.mem.used` Prometheus `redis_used_memory` Telegraf `redis_used_memory` MegaEase Dashboard - `redis-used-memory-max-metric`
Redis 分配的内存大小，由操作系统视图	MegaEase`redis-used-memory-rss-metric` Datadog`redis.mem.rss` Prometheus `不支持` Telegraf `redis_used_memory_rss` MegaEase Dashboard - `redis-used-memory-rss-max-metric`
Redis INFO 命令的延迟	MegaEase`redis-cmdstat-usec-metric` Datadog`redis.info.latency_ms` Prometheus `不支持` Telegraf `redis_cmdstat_usec` MegaEase Dashboard - `redis-cmdstat-usec-ratio-metric`
在慢查询日志中报告的查询持续时间的第95个百分位数	MegaEase`不支持` Datadog`redis.slowlog.micros.95percentile` Prometheus `不支持`

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