Question

我在使用mongodb数据实际平衡我的分片时遇到了问题。我设置了分片，所有东西看起来都在sh.status（）中找到了......

--- Sharding Status ---
  sharding version: {
        "_id" : 1,
        "version" : 3,
        "minCompatibleVersion" : 3,
        "currentVersion" : 4,
        "clusterId" : ObjectId("524490036b0d452cd76aea51")
}
  shards:
        {  "_id" : "shard0000",  "host" : "mongo1:27018" }
        {  "_id" : "shard0001",  "host" : "mongo2:27018" }
  databases:
        {  "_id" : "admin",  "partitioned" : false,  "primary" : "config" }
        {  "_id" : "test",  "partitioned" : false,  "primary" : "shard0000" }
        {  "_id" : "activeTvs",  "partitioned" : true,  "primary" : "shard0000" }
                activeTvs.duid
                        shard key: { "duid" : 1 }
                        chunks:
                                shard0000       11
                        { "duid" : { "$minKey" : 1 } } -->> { "duid" : "2DCAMPY4ZUR4I" } on : shard0000 Timestamp(1, 1)
                        { "duid" : "2DCAMPY4ZUR4I" } -->> { "duid" : "BDCN4UQJ3V3OA" } on : shard0000 Timestamp(1, 13)
                        { "duid" : "BDCN4UQJ3V3OA" } -->> { "duid" : "EXCN4UQJ3TLTC" } on : shard0000 Timestamp(1, 15)
                        { "duid" : "EXCN4UQJ3TLTC" } -->> { "duid" : "JHCN4UQJ3BSH2" } on : shard0000 Timestamp(1, 16)
                        { "duid" : "JHCN4UQJ3BSH2" } -->> { "duid" : "KLCN4UQJ35RCO" } on : shard0000 Timestamp(1, 11)
                        { "duid" : "KLCN4UQJ35RCO" } -->> { "duid" : "MTCN4UQJ3SH2O" } on : shard0000 Timestamp(1, 12)
                        { "duid" : "MTCN4UQJ3SH2O" } -->> { "duid" : "P7CN4UQJ3TLFU" } on : shard0000 Timestamp(1, 17)
                        { "duid" : "P7CN4UQJ3TLFU" } -->> { "duid" : "RLCN4UQJ3QELM" } on : shard0000 Timestamp(1, 18)
                        { "duid" : "RLCN4UQJ3QELM" } -->> { "duid" : "U7CN4UQJ3SQ6G" } on : shard0000 Timestamp(1, 19)
                        { "duid" : "U7CN4UQJ3SQ6G" } -->> { "duid" : "ZPCN4UQJE6DWK" } on : shard0000 Timestamp(1, 20)
                        { "duid" : "ZPCN4UQJE6DWK" } -->> { "duid" : { "$maxKey" : 1 } } on : shard0000 Timestamp(1, 4)

问题是所有数据仅在1个分片上设置。我试着用movechunk设置 sh.moveChunk（“activeTvs.duid”，{“duid”：“JHCN4UQJ3BSH2”}，“shard0001”）

这是输出......

mongos> sh.moveChunk("activeTvs.duid", { "duid": "JHCN4UQJ3BSH2" }, "shard0001")
{
        "cause" : {
                "cause" : {
                        "note" : "from execCommand",
                        "ok" : 0,
                        "errmsg" : "not master"
                },
                "ok" : 0,
                "errmsg" : "moveChunk failed to engage TO-shard in the data transfer: not master"
        },
        "ok" : 0,
        "errmsg" : "move failed"
}

我不知道如何解决块迁移的“非主”错误。我花了很多时间在这上面，并且确实需要在分片之间分配数据以提高写入性能。非常感谢所有帮助，谢谢

哦，我也查看了数据库锁定以找到更多信息，但这就是我所看到的

db.locks.find().pretty()
{
        "_id" : "configUpgrade",
        "process" : "ipaddress:27017:1380225027:1804289383",
        "state" : 0,
        "ts" : ObjectId("524490036b0d452cd76aea4f"),
        "when" : ISODate("2013-09-26T19:50:27.567Z"),
        "who" : "ipaddress:27017:1380225027:1804289383:mongosMain:846930886",
        "why" : "upgrading config database to new format v4"
}
{
        "_id" : "balancer",
        "process" : "ipaddress:27017:1380225024:1804289383",
        "state" : 0,
        "ts" : ObjectId("52449d596787fa8abc8a0311"),
        "when" : ISODate("2013-09-26T20:47:21.880Z"),
        "who" : "ip:1380225024:1804289383:Balancer:846930886",
        "why" : "doing balance round"
}
{
        "_id" : "activeTvs.duid",
        "process" : "ipaddress:27018:1380225875:1148973287",
        "state" : 0,
        "ts" : ObjectId("52449d5e46aced87c407d472"),
        "when" : ISODate("2013-09-26T20:47:26.608Z"),
        "who" : "ip:1380225875:1148973287:conn4:1169675271",
        "why" : "migrate-{ duid: MinKey }"
}

mongodb分片集合不会将chunk移动到另一个shard而不是master

0 个答案: