redis - 使用redis-audit 来分析redis的key的情况， 以及原生命令，查看redis的key的value的容量
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$ info keyspace 也可以看到， 某个redis 下有多少key
0. 使用原生命令：
127.0.0.1:6xxx[1]> debug object klines:btcusdt:k:1
Value at:0x7fefbd2d86e0 refcount:1 encoding:quicklist serializedlength:1527872 lru:1914438 lru_seconds_idle:1 ql_nodes:515 ql_avg_node:158.58 ql_ziplist_max:-2 ql_compressed:0 ql_uncompressed_size:4198014
这里表示， serializedlength 1527872 单位是byte. 也就是压缩后1.5MB
参考: https://github.com/snmaynard/redis-audit
1. git clone
2. bundle install
3. 运行:
bundle exec ruby redis-audit.rb -h 172.11.22.233 --port 6111 --dbnum 1
4. 就能看到各种结果了
/root/.rbenv/versions/2.5.0/lib/ruby/gems/2.5.0/gems/redis-3.2.2/lib/redis/client.rb:441: warning: constant ::Fixnum is deprecated Auditing 172.31.12.247:6800 dbnum:0 sampling 0 keys Sampling 9 keys... DB has 94 keys Sampled 1.02 kB of Redis memory Found 6 key groups ============================================================================== Found 1 keys containing strings, like: low_price_ethbtc These keys use 8.77% of the total sampled memory (92 bytes) None of these keys expire Average last accessed time: 1 minutes, 12 seconds - (Max: 1 minutes, 12 seconds Min:1 minutes, 12 seconds) ============================================================================== Found 1 keys containing strings, like: peatio:eosbtc:ticker:open These keys use 9.72% of the total sampled memory (102 bytes) None of these keys expire Average last accessed time: 6 seconds - (Max: 6 seconds Min:6 seconds) ============================================================================== Found 1 keys containing strings, like: yesterday_price_xrpbtc These keys use 10.96% of the total sampled memory (115 bytes) None of these keys expire Average last accessed time: 2 minutes, 58 seconds - (Max: 2 minutes, 58 seconds Min:2 minutes, 58 seconds) ============================================================================== Found 2 keys containing strings, like: usd_price_cgw, usd_price_bch These keys use 17.54% of the total sampled memory (184 bytes) None of these keys expire Average last accessed time: 9 seconds - (Max: 9 seconds Min:9 seconds) ============================================================================== Found 1 keys containing strings, like: account@member_id=9298@currency_id=110 These keys use 18.02% of the total sampled memory (189 bytes) None of these keys expire Average last accessed time: 2 days, 20 hours, 24 minutes, 58 seconds - (Max: 2 days, 20 hours, 24 minutes, 58 seconds Min:2 days, 20 hours, 24 minutes, 58 seconds) ============================================================================== Found 3 keys containing strings, like: 24h_volume_dsctusdt, 24h_volume_eosbtc, 24h_volume_eoseth These keys use 34.99% of the total sampled memory (367 bytes) None of these keys expire Average last accessed time: 59 seconds - (Max: 1 minutes, 12 seconds Min:42 seconds) ============================================================================== Summary ---------------------------------------------------+--------------+-------------------+--------------------------------------------------- Key | Memory Usage | Expiry Proportion | Last Access Time ---------------------------------------------------+--------------+-------------------+--------------------------------------------------- 24h_volume_dsctusdt | 34.99% | 0.0% | 42 seconds account@member_id=9298@currency_id=110 | 18.02% | 0.0% | 2 days, 20 hours, 24 minutes, 58 seconds usd_price_cgw | 17.54% | 0.0% | 9 seconds yesterday_price_xrpbtc | 10.96% | 0.0% | 2 minutes, 58 seconds peatio:eosbtc:ticker:open | 9.72% | 0.0% | 6 seconds low_price_ethbtc | 8.77% | 0.0% | 1 minutes, 12 seconds ---------------------------------------------------+--------------+-------------------+---------------------------------------------------