我有一个简单的分片MongoDB设置：4个分片，每个分片是一个副本集。昨天，我在群集中添加了一个新的分片（副本集），使其成为5个分片，但它重新平衡得太慢，移动一个块（ 64m）用了一天。
mongos> db.currentOp()
{
"inprog" : [
{
"opid" : "rs0:1065042",
"active" : true,
"secs_running" : 2,
"op" : "getmore",
"ns" : "local.oplog.rs",
"query" : {
"ts" : {
"$gte" : {
"t" : 1377488004,
"i" : 498
}
}
},
"client_s" : "192.168.0.64:55163",
"desc" : "conn9",
"threadId" : "0x7fa516c6c700",
"connectionId" : 9,
"waitingForLock" : false,
"numYields" : 0,
"lockStats" : {
"timeLockedMicros" : {
"r" : NumberLong(80),
"w" : NumberLong(0)
},
"timeAcquiringMicros" : {
"r" : NumberLong(14),
"w" : NumberLong(0)
}
}
},
{
"opid" : "rs0:76801",
"active" : true,
"secs_running" : 83287,
"op" : "query",
"ns" : "weibo.status",
"query" : {
"moveChunk" : "weibo.status",
"from" : "rs0/192.168.0.57:10000,192.168.0.64:10000",
"to" : "rs4/192.168.0.62:10000",
"fromShard" : "rs0",
"toShard" : "rs4",
"min" : {
"User._id" : ObjectId("000000000000001637703592")
},
"max" : {
"User._id" : ObjectId("000000000000001637952115")
},
"maxChunkSizeBytes" : NumberLong(67108864),
"shardId" : "weibo.status-User._id_ObjectId('000000000000001637703592')",
"configdb" : "192.168.0.57:10010,192.168.0.58:10010,192.168.0.59:10010",
"secondaryThrottle" : true,
"waitForDelete" : false
},
"client_s" : "192.168.0.60:33047",
"desc" : "conn21",
"threadId" : "0x7fa516365700",
"connectionId" : 21,
"waitingForLock" : false,
"msg" : "step3 of 6",
"numYields" : 8,
"lockStats" : {
"timeLockedMicros" : {
"r" : NumberLong(2704354),
"w" : NumberLong(0)
},
"timeAcquiringMicros" : {
"r" : NumberLong(1329771),
"w" : NumberLong(0)
}
}
},
{
"opid" : "rs1:1023257",
"active" : true,
"secs_running" : 2,
"op" : "getmore",
"ns" : "local.oplog.rs",
"query" : {
"ts" : {
"$gte" : {
"t" : 1377487880,
"i" : 9
}
}
},
"client_s" : "192.168.0.65:36693",
"desc" : "conn24",
"threadId" : "0x7f6738450700",
"connectionId" : 24,
"waitingForLock" : false,
"numYields" : 0,
"lockStats" : {
"timeLockedMicros" : {
"r" : NumberLong(35),
"w" : NumberLong(0)
},
"timeAcquiringMicros" : {
"r" : NumberLong(6),
"w" : NumberLong(0)
}
}
},
{
"opid" : "rs2:488339",
"active" : true,
"secs_running" : 1,
"op" : "getmore",
"ns" : "local.oplog.rs",
"query" : {
"ts" : {
"$gte" : {
"t" : 1377487952,
"i" : 1
}
}
},
"client_s" : "192.168.0.66:48924",
"desc" : "conn30",
"threadId" : "0x7fc2e6ec6700",
"connectionId" : 30,
"waitingForLock" : false,
"numYields" : 0,
"lockStats" : {
"timeLockedMicros" : {
"r" : NumberLong(22),
"w" : NumberLong(0)
},
"timeAcquiringMicros" : {
"r" : NumberLong(5),
"w" : NumberLong(0)
}
}
},
{
"opid" : "rs3:427991",
"active" : true,
"secs_running" : 2,
"op" : "getmore",
"ns" : "local.oplog.rs",
"query" : {
"ts" : {
"$gte" : {
"t" : 1377498918,
"i" : 1
}
}
},
"client_s" : "192.168.0.67:50895",
"desc" : "conn32",
"threadId" : "0x7f184ab16700",
"connectionId" : 32,
"waitingForLock" : false,
"numYields" : 0,
"lockStats" : {
"timeLockedMicros" : {
"r" : NumberLong(31),
"w" : NumberLong(0)
},
"timeAcquiringMicros" : {
"r" : NumberLong(5),
"w" : NumberLong(0)
}
}
}
]
}
分片状态：
mongos> sh.status()
--- Sharding Status ---
sharding version: {
"_id" : 1,
"version" : 3,
"minCompatibleVersion" : 3,
"currentVersion" : 4,
"clusterId" : ObjectId("51b1979ee2599912d7c2eb3e")
}
shards:
{ "_id" : "rs0", "host" : "rs0/192.168.0.57:10000,192.168.0.64:10000" }
{ "_id" : "rs1", "host" : "rs1/192.168.0.58:10000,192.168.0.65:10000" }
{ "_id" : "rs2", "host" : "rs2/192.168.0.59:10000,192.168.0.66:10000" }
{ "_id" : "rs3", "host" : "rs3/192.168.0.60:10000,192.168.0.67:10000" }
{ "_id" : "rs4", "host" : "rs4/192.168.0.62:10000" }
databases:
{ "_id" : "admin", "partitioned" : false, "primary" : "config" }
{ "_id" : "weibo", "partitioned" : true, "primary" : "rs0" }
weibo.friend
shard key: { "_id" : 1 }
chunks:
rs0 1
{ "_id" : { "$minKey" : 1 } } -->> { "_id" : { "$maxKey" : 1 } } on : rs0 { "t" : 1, "i" : 0 }
weibo.status
shard key: { "User._id" : 1 }
chunks:
rs1 8167
rs3 8042
rs2 8198
rs0 9984
too many chunks to print, use verbose if you want to force print
weibo.status_2009_1
shard key: { "User._id" : 1 }
chunks:
rs0 1
{ "User._id" : { "$minKey" : 1 } } -->> { "User._id" : { "$maxKey" : 1 } } on : rs0 { "t" : 1, "i" : 0 }
weibo.status_2009_2
shard key: { "User._id" : 1 }
chunks:
rs1 1
rs0 1
{ "User._id" : { "$minKey" : 1 } } -->> { "User._id" : ObjectId("000000000000001165660113") } on : rs1 { "t" : 2, "i" : 0 }
{ "User._id" : ObjectId("000000000000001165660113") } -->> { "User._id" : { "$maxKey" : 1 } } on : rs0 { "t" : 2, "i" : 1 }
weibo.status_2009_3
shard key: { "User._id" : 1 }
chunks:
rs1 1
rs2 1
rs0 1
{ "User._id" : { "$minKey" : 1 } } -->> { "User._id" : ObjectId("000000000000001630529257") } on : rs1 { "t" : 2, "i" : 0 }
{ "User._id" : ObjectId("000000000000001630529257") } -->> { "User._id" : ObjectId("000000000000001650516303") } on : rs2 { "t" : 3, "i" : 0 }
{ "User._id" : ObjectId("000000000000001650516303") } -->> { "User._id" : { "$maxKey" : 1 } } on : rs0 { "t" : 3, "i" : 1 }
weibo.status_2009_4
shard key: { "User._id" : 1 }
chunks:
rs1 1
rs2 1
rs3 1
rs0 1
{ "User._id" : { "$minKey" : 1 } } -->> { "User._id" : ObjectId("000000000000001002443221") } on : rs1 { "t" : 2, "i" : 0 }
{ "User._id" : ObjectId("000000000000001002443221") } -->> { "User._id" : ObjectId("000000000000001655036665") } on : rs2 { "t" : 3, "i" : 0 }
{ "User._id" : ObjectId("000000000000001655036665") } -->> { "User._id" : ObjectId("000000000000001677004367") } on : rs3 { "t" : 4, "i" : 0 }
{ "User._id" : ObjectId("000000000000001677004367") } -->> { "User._id" : { "$maxKey" : 1 } } on : rs0 { "t" : 4, "i" : 1 }
weibo.status_2010_1
shard key: { "User._id" : 1 }
chunks:
rs1 1
rs3 1
rs2 2
rs0 1
{ "User._id" : { "$minKey" : 1 } } -->> { "User._id" : ObjectId("000000000000000251907773") } on : rs1 { "t" : 2, "i" : 0 }
{ "User._id" : ObjectId("000000000000000251907773") } -->> { "User._id" : ObjectId("000000000000001581262961") } on : rs3 { "t" : 4, "i" : 0 }
{ "User._id" : ObjectId("000000000000001581262961") } -->> { "User._id" : ObjectId("000000000000001670342047") } on : rs2 { "t" : 4, "i" : 1 }
{ "User._id" : ObjectId("000000000000001670342047") } -->> { "User._id" : ObjectId("000000000000001717920874") } on : rs2 { "t" : 3, "i" : 5 }
{ "User._id" : ObjectId("000000000000001717920874") } -->> { "User._id" : { "$maxKey" : 1 } } on : rs0 { "t" : 3, "i" : 1 }
weibo.status_2010_2
shard key: { "User._id" : 1 }
chunks:
rs1 1
rs2 2
rs3 3
rs0 1
{ "User._id" : { "$minKey" : 1 } } -->> { "User._id" : ObjectId("000000000000000251907773") } on : rs1 { "t" : 2, "i" : 0 }
{ "User._id" : ObjectId("000000000000000251907773") } -->> { "User._id" : ObjectId("000000000000001414460744") } on : rs2 { "t" : 4, "i" : 4 }
{ "User._id" : ObjectId("000000000000001414460744") } -->> { "User._id" : ObjectId("000000000000001664671192") } on : rs2 { "t" : 4, "i" : 5 }
{ "User._id" : ObjectId("000000000000001664671192") } -->> { "User._id" : ObjectId("000000000000001721752193") } on : rs3 { "t" : 4, "i" : 2 }
{ "User._id" : ObjectId("000000000000001721752193") } -->> { "User._id" : ObjectId("000000000000001736802123") } on : rs3 { "t" : 4, "i" : 6 }
{ "User._id" : ObjectId("000000000000001736802123") } -->> { "User._id" : ObjectId("000000000000001785220335") } on : rs3 { "t" : 4, "i" : 7 }
{ "User._id" : ObjectId("000000000000001785220335") } -->> { "User._id" : { "$maxKey" : 1 } } on : rs0 { "t" : 4, "i" : 1 }
weibo.status_2010_3
shard key: { "User._id" : 1 }
chunks:
rs1 2
rs2 3
rs3 2
rs0 3
{ "User._id" : { "$minKey" : 1 } } -->> { "User._id" : ObjectId("000000000000001342784851") } on : rs1 { "t" : 2, "i" : 0 }
{ "User._id" : ObjectId("000000000000001342784851") } -->> { "User._id" : ObjectId("000000000000001591403661") } on : rs1 { "t" : 5, "i" : 0 }
{ "User._id" : ObjectId("000000000000001591403661") } -->> { "User._id" : ObjectId("000000000000001679103562") } on : rs2 { "t" : 5, "i" : 1 }
{ "User._id" : ObjectId("000000000000001679103562") } -->> { "User._id" : ObjectId("000000000000001738510785") } on : rs2 { "t" : 4, "i" : 8 }
{ "User._id" : ObjectId("000000000000001738510785") } -->> { "User._id" : ObjectId("000000000000001767600673") } on : rs2 { "t" : 4, "i" : 9 }
{ "User._id" : ObjectId("000000000000001767600673") } -->> { "User._id" : ObjectId("000000000000001777372031") } on : rs3 { "t" : 4, "i" : 10 }
{ "User._id" : ObjectId("000000000000001777372031") } -->> { "User._id" : ObjectId("000000000000001790595097") } on : rs3 { "t" : 4, "i" : 11 }
{ "User._id" : ObjectId("000000000000001790595097") } -->> { "User._id" : ObjectId("000000000000001802728227") } on : rs0 { "t" : 4, "i" : 2 }
{ "User._id" : ObjectId("000000000000001802728227") } -->> { "User._id" : ObjectId("000000000000001841809925") } on : rs0 { "t" : 4, "i" : 3 }
{ "User._id" : ObjectId("000000000000001841809925") } -->> { "User._id" : { "$maxKey" : 1 } } on : rs0 { "t" : 1, "i" : 4 }
weibo.status_2010_4
shard key: { "User._id" : 1 }
chunks:
rs1 2
rs2 2
rs3 1
rs0 6
{ "User._id" : { "$minKey" : 1 } } -->> { "User._id" : ObjectId("000000000000001342784851") } on : rs1 { "t" : 2, "i" : 0 }
{ "User._id" : ObjectId("000000000000001342784851") } -->> { "User._id" : ObjectId("000000000000001619454413") } on : rs2 { "t" : 4, "i" : 4 }
{ "User._id" : ObjectId("000000000000001619454413") } -->> { "User._id" : ObjectId("000000000000001716045721") } on : rs2 { "t" : 4, "i" : 5 }
{ "User._id" : ObjectId("000000000000001716045721") } -->> { "User._id" : ObjectId("000000000000001782379745") } on : rs3 { "t" : 4, "i" : 0 }
{ "User._id" : ObjectId("000000000000001782379745") } -->> { "User._id" : ObjectId("000000000000001805244393") } on : rs1 { "t" : 5, "i" : 0 }
{ "User._id" : ObjectId("000000000000001805244393") } -->> { "User._id" : ObjectId("000000000000001827399335") } on : rs0 { "t" : 5, "i" : 1 }
{ "User._id" : ObjectId("000000000000001827399335") } -->> { "User._id" : ObjectId("000000000000001841677661") } on : rs0 { "t" : 3, "i" : 2 }
{ "User._id" : ObjectId("000000000000001841677661") } -->> { "User._id" : ObjectId("000000000000001852657387") } on : rs0 { "t" : 3, "i" : 3 }
{ "User._id" : ObjectId("000000000000001852657387") } -->> { "User._id" : ObjectId("000000000000001878545495") } on : rs0 { "t" : 1, "i" : 13 }
{ "User._id" : ObjectId("000000000000001878545495") } -->> { "User._id" : ObjectId("000000000000001901429413") } on : rs0 { "t" : 1, "i" : 14 }
{ "User._id" : ObjectId("000000000000001901429413") } -->> { "User._id" : { "$maxKey" : 1 } } on : rs0 { "t" : 1, "i" : 4 }
weibo.status_2011_1
shard key: { "User._id" : 1 }
chunks:
rs1 2
rs2 3
rs3 4
rs0 11
too many chunks to print, use verbose if you want to force print
weibo.status_2011_2
shard key: { "User._id" : 1 }
chunks:
rs1 2
rs2 1
rs3 1
rs0 16
too many chunks to print, use verbose if you want to force print
weibo.status_2011_3
shard key: { "User._id" : 1 }
chunks:
rs1 2
rs2 2
rs3 2
rs0 28
too many chunks to print, use verbose if you want to force print
weibo.status_2011_4
shard key: { "User._id" : 1 }
chunks:
rs1 2
rs2 2
rs3 2
rs0 39
too many chunks to print, use verbose if you want to force print
weibo.status_2012_1
shard key: { "User._id" : 1 }
chunks:
rs1 2
rs2 4
rs3 4
rs0 53
too many chunks to print, use verbose if you want to force print
weibo.status_2012_2
shard key: { "User._id" : 1 }
chunks:
rs1 2
rs2 2
rs3 3
rs0 81
too many chunks to print, use verbose if you want to force print
weibo.status_2012_3
shard key: { "User._id" : 1 }
chunks:
rs1 2
rs2 3
rs3 2
rs0 119
too many chunks to print, use verbose if you want to force print
weibo.status_2012_4
shard key: { "User._id" : 1 }
chunks:
rs1 2
rs2 4
rs3 3
rs0 359
too many chunks to print, use verbose if you want to force print
weibo.status_2013_1
shard key: { "User._id" : 1 }
chunks:
rs1 2
rs2 2
rs3 3
rs0 1111
too many chunks to print, use verbose if you want to force print
weibo.status_2013_2
shard key: { "User._id" : 1 }
chunks:
rs1 2
rs2 2
rs3 4
rs0 1323
too many chunks to print, use verbose if you want to force print
weibo.status_2013_3
shard key: { "User._id" : 1 }
chunks:
rs1 2
rs2 14
rs3 28
rs0 1257
too many chunks to print, use verbose if you want to force print
weibo.user
shard key: { "Province" : 1, "_id" : 1 }
chunks:
rs3 250
rs2 250
rs1 250
rs0 253
too many chunks to print, use verbose if you want to force print
{ "_id" : "user_estate2", "partitioned" : false, "primary" : "rs2" }