我有一个配备3台服务器的里亚克组。 我可以看一下借方设法确定这一组群目前使用多少磁盘空间,但我也想确定该组目前储存的物品有多少。
正在使用该组储存图像,这意味着双轨数据正用一套桶中的钥匙储存。 我试图利用地图来减少对吉大港山区交界的功能,以便把布塔中的物品数目退回,尽管这些物品已经过时。
从特定桶中抽取关键数的最佳方式是什么?
我有一个配备3台服务器的里亚克组。 我可以看一下借方设法确定这一组群目前使用多少磁盘空间,但我也想确定该组目前储存的物品有多少。
正在使用该组储存图像,这意味着双轨数据正用一套桶中的钥匙储存。 我试图利用地图来减少对吉大港山区交界的功能,以便把布塔中的物品数目退回,尽管这些物品已经过时。
从特定桶中抽取关键数的最佳方式是什么?
在Rik集群上用桶标出的钥匙数,即便是利用“地图”功能,也并非非常有效。
我发现,从数量上看,最有效的方法是通过滚动的APIC来使客户受益。 下面的事例是利用 no子这样做。
第一安装Ariak-js客户
npm install riak-js@latest
然后,在指挥线上排下以下一段话,以给你计票。
node -e "require( riak-js ).getClient({ host: hostname , port: 8098 }).count( bucket );"
Here is what worked for me - put it into console, no further installs:
curl -XPOST http://localhost:8098/mapred -H Content-Type: application/json -d
{"inputs":"THE_BUKET",
"query":[{"map":{"language":"javascript",
"keep":false,
"source":"function(riakobj) {return [1]; }"}},
{"reduce":{"language":"javascript",
"keep":true,
"name":"Riak.reduceSum"}}]}
http://docs.basho.com/riak/latest/dev/using/2i/
第2款 “Co”
$ curl -XPOST http://localhost:8098/mapred
-H Content-Type: application/json
-d {"inputs":{
"bucket":"mybucket",
"index":"$bucket",
"key":"mybucket"
},
"query":[{"reduce":{"language":"erlang",
"module":"riak_kv_mapreduce",
"function":"reduce_count_inputs",
"arg":{"reduce_phase_batch_size":1000}
}
}]
}
EOF
减少指数比预测数据要好
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