Question

我已将mongo db增强为集群。我正在使用mongo 4.0.0

1个配置节点，4个shardsrv节点和1个mongos节点

从mongos节点连接机器人3T后

use admin
db.runCommand( { enablesharding : "test007" } )

输出

/* 1 */
{
"ok" : 1.0,
"operationTime" : Timestamp(1533293758, 4),
"$clusterTime" : {
    "clusterTime" : Timestamp(1533293758, 4),
    "signature" : {
        "hash" : { "$binary" : "AAAAAAAAAAAAAAAAAAAAAAAAAAA=", "$type" : "00" },
        "keyId" : NumberLong(0)
    }
}
}

之后

use test007
sh.shardCollection("test007.customer", { "_id": "hashed" } )

输出

/* 1 */
{
"collectionsharded" : "test007.customer",
"collectionUUID" : UUID("448797e0-afdf-46b1-b2db-92d8e8ed2661"),
"ok" : 1.0,
"operationTime" : Timestamp(1533293909, 2),
"$clusterTime" : {
    "clusterTime" : Timestamp(1533293909, 6),
    "signature" : {
        "hash" : { "$binary" : "AAAAAAAAAAAAAAAAAAAAAAAAAAA=", "$type" : "00" },
        "keyId" : NumberLong(0)
    }
}
}

然后我执行检查

db.customer.getShardDistribution()

输出

Collection test007.customer is not sharded.

当我将某些内容摄取到群集中时，我可以看到所有碎片节点的所有内容。

sh.status()

输出

{  "_id" : "test007",  "primary" : "cluster1",  "partitioned" : true,  "version" : {  "uuid" : BinData(4,"4IIk2Q3fSYO67QusUND2og=="),  "lastMod" : 1 } }
    test007.customer
        shard key: { "_id" : "hashed" }
        unique: false
        balancing: true
        chunks:
            cluster1    2
        { "_id" : { "$minKey" : 1 } } -->> { "_id" : NumberLong(0) } on : cluster1 Timestamp(1, 1) 
        { "_id" : NumberLong(0) } -->> { "_id" : { "$maxKey" : 1 } } on : cluster1 Timestamp(1, 2)

有人知道为什么分片未正确初始化吗？

未拆分Mongodb Collection test007.customer

0 个答案: