如何在测试环境中启用分片？在这里，我正在分享我迄今为止所做的事情，我有一个配置服务器：
配置server1：Host-a：27019
port 27017上同一台机器上的一个mongos实例
和两个mongod实例分片：
当我在收集时启用分片时，它会给我这个错误：
2016-01-12T10:31:07.522Z I SHARDING [Balancer] ns: feedproductsdata.merchantproducts going to move { _id: "feedproductsdata.merchantproducts-product_id_MinKey", ns: "feedproductsdata.merchantproducts", min: { product_id: MinKey }, max: { product_id: 0 }, version: Timestamp 1000|0, versionEpoch: ObjectId('5694d57ebe78315b68519c38'), lastmod: Timestamp 1000|0, lastmodEpoch: ObjectId('5694d57ebe78315b68519c38'), shard: "shard0001" } from: shard0001 to: shard0000 tag []
2016-01-12T10:31:07.523Z I SHARDING [Balancer] moving chunk ns: feedproductsdata.merchantproducts moving ( ns: feedproductsdata.merchantproducts, shard: shard0001:192.168.1.12:27021, lastmod: 1|0||000000000000000000000000, min: { product_id: MinKey }, max: { product_id: 0 }) shard0001:192.168.1.12:27021 -> shard0000:192.168.1.8:27020
2016-01-12T10:31:08.530Z I SHARDING [Balancer] moveChunk result: { errmsg: "exception: socket exception [CONNECT_ERROR] for cfg1.server.com:27019", code: 11002, ok: 0.0 }
2016-01-12T10:31:08.531Z I SHARDING [Balancer] balancer move failed: { errmsg: "exception: socket exception [CONNECT_ERROR] for cfg1.server.com:27019", code: 11002, ok: 0.0 } from: shard0001 to: shard0000 chunk: min: { product_id: MinKey } max: { product_id: 0 }
2016-01-12T10:31:08.604Z I SHARDING [Balancer] distributed lock 'balancer/Knowledgeops-PC:27017:1452594322:41' unlocked.