常用组合
常用组合
INFO memory | grep -E "used_memory_human|maxmemory_human|mem_fragmentation_ratio"
INFO replication | grep -E "role|connected_slaves|master_repl_offset|slave.*lag"
INFO persistence | grep -E "rdb_last_bgsave_status|aof_last_bgrewrite_status"
INFO stats | grep -E "instantaneous_ops_per_sec|keyspace_hits|keyspace_misses|evicted_keys"
INFO keyspace
INFO commandstats | sort -t= -k2 -rn | head -20 # 各命令累计调用 top段与关键字段
| 段 | 字段 | 用途 |
|---|---|---|
| clients | connected_clients / blocked_clients | 连接与阻塞 |
| memory | used_memory / maxmemory / evicted_keys | 内存与淘汰 |
| replication | master_repl_offset / lag | 复制进度 |
| persistence | last_bgsave_status / rdb_changes_since_last_save | 持久化健康 |
| stats | ops_per_sec / hits / misses | 吞吐与命中率 |
commandstats/keyspace_hits 等都是自启动累计值；看「最近变化」要用时间差或 CONFIG RESETSTAT 后重采。