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Primary Shard Server is down, is this normal behavior?
Mongo sharding issue with chunk split and Data transfermongodb shard chunk migration 500GB takes 13 days - Is this slow or normal?MongoDB - Change primary shard only for a certain databaseChunk Size is shown as 1 KB in mongo db logs even it is set to 300 MBMongos version 3.0.1 Split Chunk Error with ShardingWhat will happen if the primary shard for a mongodb database is down?Mongo DB sharded cluster fails when one shard is downReplica Set Question - one primary instance with two secondary instancesMongodb rs.add() new member in STARTUP statewhat if mongos server goes down in shard cluster setup
0
I have two sharded Replica set
RS0
RS1
The balancer is doing chunk migration between primary at RS0 to the primary at RS1.
Once the primary server at RS1 goes down, then the secondary is elected as primary but I can see a strange thing. The migration of chunks stopped and the number of chunks stay the same and all the data inserted to the primary at RS1 in one chunk.
The balancer status is running but no new chunks have been added until I start again the original primary node then the migration is back to work again and the chunks have been added to the RS1.
Is this normal?
sh.status():
mongos> sh.status()
--- Sharding Status ---
sharding version: {
"_id" : 1,
"minCompatibleVersion" : 5,
"currentVersion" : 6,
"clusterId" : ObjectId("5649d9f147a1deaf459cd461")
}
shards:
{ "_id" : "rs0", "host" : "rs0/PrimaryShardA:27017,SecondaryShardA:270
17" }
{ "_id" : "rs1", "host" : "rs1/PrimaryShardB:27017,SecondaryShardA:250
17" }
balancer:
Currently enabled: yes
Currently running: no
Collections with active migrations:
mohe.alg started at Wed Nov 18 2015 05:35:19 GMT-0800 (Pacific S
tandard Time)
Failed balancer rounds in last 5 attempts: 0
Migration Results for the last 24 hours:
1170 : Success
databases:
{ "_id" : "admin", "partitioned" : false, "primary" : "config" }
{ "_id" : "moe", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "mohe", "partitioned" : true, "primary" : "rs0" }
mohe.alg
shard key: { "dept" : 1, "id" : 1 }
chunks:
rs0 7
rs1 8
{ "dept" : { "$minKey" : 1 }, "id" : { "$minKey" : 1 } }
-->> { "dept" : "C10", "id" : 10 } on : rs1 Timestamp(6, 1)
{ "dept" : "C10", "id" : 10 } -->> { "dept" : "C6", "id"
: 6 } on : rs0 Timestamp(7, 1)
{ "dept" : "C6", "id" : 6 } -->> { "dept" : "H10280", "i
d" : 10280 } on : rs0 Timestamp(2, 2)
{ "dept" : "H10280", "id" : 10280 } -->> { "dept" : "H18
119", "id" : 18119 } on : rs0 Timestamp(2, 3)
{ "dept" : "H18119", "id" : 18119 } -->> { "dept" : "M22
843", "id" : 22843 } on : rs1 Timestamp(3, 2)
{ "dept" : "M22843", "id" : 22843 } -->> { "dept" : "M29
224", "id" : 29224 } on : rs1 Timestamp(3, 3)
{ "dept" : "M29224", "id" : 29224 } -->> { "dept" : "X33
948", "id" : 33948 } on : rs0 Timestamp(4, 2)
{ "dept" : "X33948", "id" : 33948 } -->> { "dept" : "X38
974", "id" : 38974 } on : rs0 Timestamp(4, 3)
{ "dept" : "X38974", "id" : 38974 } -->> { "dept" : "X43
697", "id" : 43697 } on : rs1 Timestamp(5, 2)
{ "dept" : "X43697", "id" : 43697 } -->> { "dept" : "X49
726", "id" : 49726 } on : rs1 Timestamp(5, 3)
{ "dept" : "X49726", "id" : 49726 } -->> { "dept" : "X54
449", "id" : 54449 } on : rs0 Timestamp(6, 2)
{ "dept" : "X54449", "id" : 54449 } -->> { "dept" : "X61
987", "id" : 61987 } on : rs0 Timestamp(6, 3)
{ "dept" : "X61987", "id" : 61987 } -->> { "dept" : "X66
710", "id" : 66710 } on : rs1 Timestamp(7, 2)
{ "dept" : "X66710", "id" : 66710 } -->> { "dept" : "u74
489", "id" : 74489 } on : rs1 Timestamp(7, 3)
{ "dept" : "u74489", "id" : 74489 } -->> { "dept" : { "$
maxKey" : 1 }, "id" : { "$maxKey" : 1 } } on : rs1 Timestamp(7, 4)
{ "_id" : "stds", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "users", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "mongos", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "test", "partitioned" : false, "primary" : "rs0" }
mongos>
rs0.status:
rs1:PRIMARY> rs.status()
{
"set" : "rs1",
"date" : ISODate("2015-11-19T05:24:53.577Z"),
"myState" : 1,
"members" : [
{
"_id" : 0,
"name" : "PrimaryShardB:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 79578,
"optime" : Timestamp(1447910579, 262),
"optimeDate" : ISODate("2015-11-19T05:22:59Z"),
"electionTime" : Timestamp(1447831123, 1),
"electionDate" : ISODate("2015-11-18T07:18:43Z"),
"configVersion" : 8,
"self" : true
},
{
"_id" : 2,
"name" : "Config2Arbiter2:30000",
"health" : 1,
"state" : 7,
"stateStr" : "ARBITER",
"uptime" : 79578,
"lastHeartbeat" : ISODate("2015-11-19T05:24:51.768Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:24:52Z"),
"pingMs" : 0,
"configVersion" : 8
},
{
"_id" : 3,
"name" : "SecondaryShardB:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 52802,
"optime" : Timestamp(1447910579, 262),
"optimeDate" : ISODate("2015-11-19T05:22:59Z"),
"lastHeartbeat" : ISODate("2015-11-19T05:24:52.988Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:24:51.650Z"
),
"pingMs" : 0,
"syncingTo" : "PrimaryShardB:27017",
"configVersion" : 8
}
],
"ok" : 1,
"$gleStats" : {
"lastOpTime" : Timestamp(1447857889, 1),
"electionId" : ObjectId("564c26530b899b6501a068b5")
}
}
rs1:PRIMARY>
rs1.status:
> rs.status()
{
"set" : "rs0",
"date" : ISODate("2015-11-19T05:22:45.355Z"),
"myState" : 1,
"members" : [
{
"_id" : 0,
"name" : "PrimaryShardA:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 74,
"optime" : Timestamp(1447910558, 129),
"optimeDate" : ISODate("2015-11-19T05:22:38Z"),
"electionTime" : Timestamp(1447910499, 1),
"electionDate" : ISODate("2015-11-19T05:21:39Z"),
"configVersion" : 5,
"self" : true
},
{
"_id" : 1,
"name" : "SecondaryShardA:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 73,
"optime" : Timestamp(1447910558, 129),
"optimeDate" : ISODate("2015-11-19T05:22:38Z"),
"lastHeartbeat" : ISODate("2015-11-19T05:22:43.661Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:22:44.703Z"
),
"pingMs" : 0,
"syncingTo" : "PrimaryShardA:27017",
"configVersion" : 5
},
{
"_id" : 2,
"name" : "config1arb1:30000",
"health" : 1,
"state" : 7,
"stateStr" : "ARBITER",
"uptime" : 73,
"lastHeartbeat" : ISODate("2015-11-19T05:22:43.670Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:22:43.648Z"
),
"pingMs" : 0,
"configVersion" : 5
}
],
"ok" : 1,
"$gleStats" : {
"lastOpTime" : Timestamp(0, 0),
"electionId" : ObjectId("564d5c6369be81b02ca1eb55")
}
}
>
mongos db.stats()
mongos> db.stats()
{
"raw" : {
"rs0/PrimaryShardA:27017,SecondaryShardA:27017" : {
"db" : "mohe",
"collections" : 1,
"objects" : 1121765,
"avgObjSize" : 243.47020900099398,
"dataSize" : 273116359,
"storageSize" : 283131904,
"numExtents" : 0,
"indexes" : 2,
"indexSize" : 490663936,
"ok" : 1,
"$gleStats" : {
"lastOpTime" : Timestamp(0, 0),
"electionId" : ObjectId("564dcd0b1999c29e17f28f5
5")
}
},
"rs1/PrimaryShardB:27017,SecondaryShardB:27017" : {
"db" : "mohe",
"collections" : 1,
"objects" : 878232,
"avgObjSize" : 243.5902791062043,
"dataSize" : 213928778,
"storageSize" : 433602560,
"numExtents" : 0,
"indexes" : 2,
"indexSize" : 389627904,
"ok" : 1
}
},
"objects" : 1999997,
"avgObjSize" : 243,
"dataSize" : 487045137,
"storageSize" : 716734464,
"numExtents" : 0,
"indexes" : 4,
"indexSize" : 880291840,
"fileSize" : 0,
"extentFreeList" : {
"num" : 0,
"totalSize" : 0
},
"ok" : 1
}
mongodb
asked Nov 18 '15 at 7:52
Ahmad Abu-HamidehAhmad Abu-Hamideh
154
bumped to the homepage by Community♦ 4 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
|
show 6 more comments
0
I have two sharded Replica set
RS0
RS1
The balancer is doing chunk migration between primary at RS0 to the primary at RS1.
Once the primary server at RS1 goes down, then the secondary is elected as primary but I can see a strange thing. The migration of chunks stopped and the number of chunks stay the same and all the data inserted to the primary at RS1 in one chunk.
The balancer status is running but no new chunks have been added until I start again the original primary node then the migration is back to work again and the chunks have been added to the RS1.
Is this normal?
sh.status():
mongos> sh.status()
--- Sharding Status ---
sharding version: {
"_id" : 1,
"minCompatibleVersion" : 5,
"currentVersion" : 6,
"clusterId" : ObjectId("5649d9f147a1deaf459cd461")
}
shards:
{ "_id" : "rs0", "host" : "rs0/PrimaryShardA:27017,SecondaryShardA:270
17" }
{ "_id" : "rs1", "host" : "rs1/PrimaryShardB:27017,SecondaryShardA:250
17" }
balancer:
Currently enabled: yes
Currently running: no
Collections with active migrations:
mohe.alg started at Wed Nov 18 2015 05:35:19 GMT-0800 (Pacific S
tandard Time)
Failed balancer rounds in last 5 attempts: 0
Migration Results for the last 24 hours:
1170 : Success
databases:
{ "_id" : "admin", "partitioned" : false, "primary" : "config" }
{ "_id" : "moe", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "mohe", "partitioned" : true, "primary" : "rs0" }
mohe.alg
shard key: { "dept" : 1, "id" : 1 }
chunks:
rs0 7
rs1 8
{ "dept" : { "$minKey" : 1 }, "id" : { "$minKey" : 1 } }
-->> { "dept" : "C10", "id" : 10 } on : rs1 Timestamp(6, 1)
{ "dept" : "C10", "id" : 10 } -->> { "dept" : "C6", "id"
: 6 } on : rs0 Timestamp(7, 1)
{ "dept" : "C6", "id" : 6 } -->> { "dept" : "H10280", "i
d" : 10280 } on : rs0 Timestamp(2, 2)
{ "dept" : "H10280", "id" : 10280 } -->> { "dept" : "H18
119", "id" : 18119 } on : rs0 Timestamp(2, 3)
{ "dept" : "H18119", "id" : 18119 } -->> { "dept" : "M22
843", "id" : 22843 } on : rs1 Timestamp(3, 2)
{ "dept" : "M22843", "id" : 22843 } -->> { "dept" : "M29
224", "id" : 29224 } on : rs1 Timestamp(3, 3)
{ "dept" : "M29224", "id" : 29224 } -->> { "dept" : "X33
948", "id" : 33948 } on : rs0 Timestamp(4, 2)
{ "dept" : "X33948", "id" : 33948 } -->> { "dept" : "X38
974", "id" : 38974 } on : rs0 Timestamp(4, 3)
{ "dept" : "X38974", "id" : 38974 } -->> { "dept" : "X43
697", "id" : 43697 } on : rs1 Timestamp(5, 2)
{ "dept" : "X43697", "id" : 43697 } -->> { "dept" : "X49
726", "id" : 49726 } on : rs1 Timestamp(5, 3)
{ "dept" : "X49726", "id" : 49726 } -->> { "dept" : "X54
449", "id" : 54449 } on : rs0 Timestamp(6, 2)
{ "dept" : "X54449", "id" : 54449 } -->> { "dept" : "X61
987", "id" : 61987 } on : rs0 Timestamp(6, 3)
{ "dept" : "X61987", "id" : 61987 } -->> { "dept" : "X66
710", "id" : 66710 } on : rs1 Timestamp(7, 2)
{ "dept" : "X66710", "id" : 66710 } -->> { "dept" : "u74
489", "id" : 74489 } on : rs1 Timestamp(7, 3)
{ "dept" : "u74489", "id" : 74489 } -->> { "dept" : { "$
maxKey" : 1 }, "id" : { "$maxKey" : 1 } } on : rs1 Timestamp(7, 4)
{ "_id" : "stds", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "users", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "mongos", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "test", "partitioned" : false, "primary" : "rs0" }
mongos>
rs0.status:
rs1:PRIMARY> rs.status()
{
"set" : "rs1",
"date" : ISODate("2015-11-19T05:24:53.577Z"),
"myState" : 1,
"members" : [
{
"_id" : 0,
"name" : "PrimaryShardB:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 79578,
"optime" : Timestamp(1447910579, 262),
"optimeDate" : ISODate("2015-11-19T05:22:59Z"),
"electionTime" : Timestamp(1447831123, 1),
"electionDate" : ISODate("2015-11-18T07:18:43Z"),
"configVersion" : 8,
"self" : true
},
{
"_id" : 2,
"name" : "Config2Arbiter2:30000",
"health" : 1,
"state" : 7,
"stateStr" : "ARBITER",
"uptime" : 79578,
"lastHeartbeat" : ISODate("2015-11-19T05:24:51.768Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:24:52Z"),
"pingMs" : 0,
"configVersion" : 8
},
{
"_id" : 3,
"name" : "SecondaryShardB:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 52802,
"optime" : Timestamp(1447910579, 262),
"optimeDate" : ISODate("2015-11-19T05:22:59Z"),
"lastHeartbeat" : ISODate("2015-11-19T05:24:52.988Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:24:51.650Z"
),
"pingMs" : 0,
"syncingTo" : "PrimaryShardB:27017",
"configVersion" : 8
}
],
"ok" : 1,
"$gleStats" : {
"lastOpTime" : Timestamp(1447857889, 1),
"electionId" : ObjectId("564c26530b899b6501a068b5")
}
}
rs1:PRIMARY>
rs1.status:
> rs.status()
{
"set" : "rs0",
"date" : ISODate("2015-11-19T05:22:45.355Z"),
"myState" : 1,
"members" : [
{
"_id" : 0,
"name" : "PrimaryShardA:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 74,
"optime" : Timestamp(1447910558, 129),
"optimeDate" : ISODate("2015-11-19T05:22:38Z"),
"electionTime" : Timestamp(1447910499, 1),
"electionDate" : ISODate("2015-11-19T05:21:39Z"),
"configVersion" : 5,
"self" : true
},
{
"_id" : 1,
"name" : "SecondaryShardA:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 73,
"optime" : Timestamp(1447910558, 129),
"optimeDate" : ISODate("2015-11-19T05:22:38Z"),
"lastHeartbeat" : ISODate("2015-11-19T05:22:43.661Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:22:44.703Z"
),
"pingMs" : 0,
"syncingTo" : "PrimaryShardA:27017",
"configVersion" : 5
},
{
"_id" : 2,
"name" : "config1arb1:30000",
"health" : 1,
"state" : 7,
"stateStr" : "ARBITER",
"uptime" : 73,
"lastHeartbeat" : ISODate("2015-11-19T05:22:43.670Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:22:43.648Z"
),
"pingMs" : 0,
"configVersion" : 5
}
],
"ok" : 1,
"$gleStats" : {
"lastOpTime" : Timestamp(0, 0),
"electionId" : ObjectId("564d5c6369be81b02ca1eb55")
}
}
>
mongos db.stats()
mongos> db.stats()
{
"raw" : {
"rs0/PrimaryShardA:27017,SecondaryShardA:27017" : {
"db" : "mohe",
"collections" : 1,
"objects" : 1121765,
"avgObjSize" : 243.47020900099398,
"dataSize" : 273116359,
"storageSize" : 283131904,
"numExtents" : 0,
"indexes" : 2,
"indexSize" : 490663936,
"ok" : 1,
"$gleStats" : {
"lastOpTime" : Timestamp(0, 0),
"electionId" : ObjectId("564dcd0b1999c29e17f28f5
5")
}
},
"rs1/PrimaryShardB:27017,SecondaryShardB:27017" : {
"db" : "mohe",
"collections" : 1,
"objects" : 878232,
"avgObjSize" : 243.5902791062043,
"dataSize" : 213928778,
"storageSize" : 433602560,
"numExtents" : 0,
"indexes" : 2,
"indexSize" : 389627904,
"ok" : 1
}
},
"objects" : 1999997,
"avgObjSize" : 243,
"dataSize" : 487045137,
"storageSize" : 716734464,
"numExtents" : 0,
"indexes" : 4,
"indexSize" : 880291840,
"fileSize" : 0,
"extentFreeList" : {
"num" : 0,
"totalSize" : 0
},
"ok" : 1
}
mongodb
asked Nov 18 '15 at 7:52
Ahmad Abu-HamidehAhmad Abu-Hamideh
154
bumped to the homepage by Community♦ 4 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
1
Can you please correct your question (correct spelling and punctuation make it much easier to understand) and add the anonymized output ofsh.status()? The output ofrs.status()of both shards could be helpful, too.
– Markus W Mahlberg
Nov 18 '15 at 9:50
Done my friend , please check now
– Ahmad Abu-Hamideh
Nov 18 '15 at 14:04
Furthermore: "{ "_id" : "rs1", "host" : "rs1/PrimaryShardB:27017,SecondaryShardA:25017" }" This is a mistake coming from anonymization, I assume?
– Markus W Mahlberg
Nov 18 '15 at 14:35
And your secondary isn't reachable as perrs.status():stateStr" : "(not reachable/healthy)". Please add the output ofrs.status()for "rs1", too. I have the feeling that this might be the same there, which would explain the behavior you are experiencing.
– Markus W Mahlberg
Nov 18 '15 at 14:39
thanks for your reply , i did that in purpose , as i need to have one server as secondary for both replica set RS0 and RS1.. anyway i removed it and added a new server to the RS1 as SecondaryShardB and re-did the scenario... but still the same , as the data goes to only one shard RS1 until i re-start the second shard rs0 primary server
– Ahmad Abu-Hamideh
Nov 18 '15 at 15:03
|
show 6 more comments
0
0
0
I have two sharded Replica set
RS0
RS1
The balancer is doing chunk migration between primary at RS0 to the primary at RS1.
Once the primary server at RS1 goes down, then the secondary is elected as primary but I can see a strange thing. The migration of chunks stopped and the number of chunks stay the same and all the data inserted to the primary at RS1 in one chunk.
The balancer status is running but no new chunks have been added until I start again the original primary node then the migration is back to work again and the chunks have been added to the RS1.
Is this normal?
sh.status():
mongos> sh.status()
--- Sharding Status ---
sharding version: {
"_id" : 1,
"minCompatibleVersion" : 5,
"currentVersion" : 6,
"clusterId" : ObjectId("5649d9f147a1deaf459cd461")
}
shards:
{ "_id" : "rs0", "host" : "rs0/PrimaryShardA:27017,SecondaryShardA:270
17" }
{ "_id" : "rs1", "host" : "rs1/PrimaryShardB:27017,SecondaryShardA:250
17" }
balancer:
Currently enabled: yes
Currently running: no
Collections with active migrations:
mohe.alg started at Wed Nov 18 2015 05:35:19 GMT-0800 (Pacific S
tandard Time)
Failed balancer rounds in last 5 attempts: 0
Migration Results for the last 24 hours:
1170 : Success
databases:
{ "_id" : "admin", "partitioned" : false, "primary" : "config" }
{ "_id" : "moe", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "mohe", "partitioned" : true, "primary" : "rs0" }
mohe.alg
shard key: { "dept" : 1, "id" : 1 }
chunks:
rs0 7
rs1 8
{ "dept" : { "$minKey" : 1 }, "id" : { "$minKey" : 1 } }
-->> { "dept" : "C10", "id" : 10 } on : rs1 Timestamp(6, 1)
{ "dept" : "C10", "id" : 10 } -->> { "dept" : "C6", "id"
: 6 } on : rs0 Timestamp(7, 1)
{ "dept" : "C6", "id" : 6 } -->> { "dept" : "H10280", "i
d" : 10280 } on : rs0 Timestamp(2, 2)
{ "dept" : "H10280", "id" : 10280 } -->> { "dept" : "H18
119", "id" : 18119 } on : rs0 Timestamp(2, 3)
{ "dept" : "H18119", "id" : 18119 } -->> { "dept" : "M22
843", "id" : 22843 } on : rs1 Timestamp(3, 2)
{ "dept" : "M22843", "id" : 22843 } -->> { "dept" : "M29
224", "id" : 29224 } on : rs1 Timestamp(3, 3)
{ "dept" : "M29224", "id" : 29224 } -->> { "dept" : "X33
948", "id" : 33948 } on : rs0 Timestamp(4, 2)
{ "dept" : "X33948", "id" : 33948 } -->> { "dept" : "X38
974", "id" : 38974 } on : rs0 Timestamp(4, 3)
{ "dept" : "X38974", "id" : 38974 } -->> { "dept" : "X43
697", "id" : 43697 } on : rs1 Timestamp(5, 2)
{ "dept" : "X43697", "id" : 43697 } -->> { "dept" : "X49
726", "id" : 49726 } on : rs1 Timestamp(5, 3)
{ "dept" : "X49726", "id" : 49726 } -->> { "dept" : "X54
449", "id" : 54449 } on : rs0 Timestamp(6, 2)
{ "dept" : "X54449", "id" : 54449 } -->> { "dept" : "X61
987", "id" : 61987 } on : rs0 Timestamp(6, 3)
{ "dept" : "X61987", "id" : 61987 } -->> { "dept" : "X66
710", "id" : 66710 } on : rs1 Timestamp(7, 2)
{ "dept" : "X66710", "id" : 66710 } -->> { "dept" : "u74
489", "id" : 74489 } on : rs1 Timestamp(7, 3)
{ "dept" : "u74489", "id" : 74489 } -->> { "dept" : { "$
maxKey" : 1 }, "id" : { "$maxKey" : 1 } } on : rs1 Timestamp(7, 4)
{ "_id" : "stds", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "users", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "mongos", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "test", "partitioned" : false, "primary" : "rs0" }
mongos>
rs0.status:
rs1:PRIMARY> rs.status()
{
"set" : "rs1",
"date" : ISODate("2015-11-19T05:24:53.577Z"),
"myState" : 1,
"members" : [
{
"_id" : 0,
"name" : "PrimaryShardB:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 79578,
"optime" : Timestamp(1447910579, 262),
"optimeDate" : ISODate("2015-11-19T05:22:59Z"),
"electionTime" : Timestamp(1447831123, 1),
"electionDate" : ISODate("2015-11-18T07:18:43Z"),
"configVersion" : 8,
"self" : true
},
{
"_id" : 2,
"name" : "Config2Arbiter2:30000",
"health" : 1,
"state" : 7,
"stateStr" : "ARBITER",
"uptime" : 79578,
"lastHeartbeat" : ISODate("2015-11-19T05:24:51.768Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:24:52Z"),
"pingMs" : 0,
"configVersion" : 8
},
{
"_id" : 3,
"name" : "SecondaryShardB:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 52802,
"optime" : Timestamp(1447910579, 262),
"optimeDate" : ISODate("2015-11-19T05:22:59Z"),
"lastHeartbeat" : ISODate("2015-11-19T05:24:52.988Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:24:51.650Z"
),
"pingMs" : 0,
"syncingTo" : "PrimaryShardB:27017",
"configVersion" : 8
}
],
"ok" : 1,
"$gleStats" : {
"lastOpTime" : Timestamp(1447857889, 1),
"electionId" : ObjectId("564c26530b899b6501a068b5")
}
}
rs1:PRIMARY>
rs1.status:
> rs.status()
{
"set" : "rs0",
"date" : ISODate("2015-11-19T05:22:45.355Z"),
"myState" : 1,
"members" : [
{
"_id" : 0,
"name" : "PrimaryShardA:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 74,
"optime" : Timestamp(1447910558, 129),
"optimeDate" : ISODate("2015-11-19T05:22:38Z"),
"electionTime" : Timestamp(1447910499, 1),
"electionDate" : ISODate("2015-11-19T05:21:39Z"),
"configVersion" : 5,
"self" : true
},
{
"_id" : 1,
"name" : "SecondaryShardA:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 73,
"optime" : Timestamp(1447910558, 129),
"optimeDate" : ISODate("2015-11-19T05:22:38Z"),
"lastHeartbeat" : ISODate("2015-11-19T05:22:43.661Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:22:44.703Z"
),
"pingMs" : 0,
"syncingTo" : "PrimaryShardA:27017",
"configVersion" : 5
},
{
"_id" : 2,
"name" : "config1arb1:30000",
"health" : 1,
"state" : 7,
"stateStr" : "ARBITER",
"uptime" : 73,
"lastHeartbeat" : ISODate("2015-11-19T05:22:43.670Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:22:43.648Z"
),
"pingMs" : 0,
"configVersion" : 5
}
],
"ok" : 1,
"$gleStats" : {
"lastOpTime" : Timestamp(0, 0),
"electionId" : ObjectId("564d5c6369be81b02ca1eb55")
}
}
>
mongos db.stats()
mongos> db.stats()
{
"raw" : {
"rs0/PrimaryShardA:27017,SecondaryShardA:27017" : {
"db" : "mohe",
"collections" : 1,
"objects" : 1121765,
"avgObjSize" : 243.47020900099398,
"dataSize" : 273116359,
"storageSize" : 283131904,
"numExtents" : 0,
"indexes" : 2,
"indexSize" : 490663936,
"ok" : 1,
"$gleStats" : {
"lastOpTime" : Timestamp(0, 0),
"electionId" : ObjectId("564dcd0b1999c29e17f28f5
5")
}
},
"rs1/PrimaryShardB:27017,SecondaryShardB:27017" : {
"db" : "mohe",
"collections" : 1,
"objects" : 878232,
"avgObjSize" : 243.5902791062043,
"dataSize" : 213928778,
"storageSize" : 433602560,
"numExtents" : 0,
"indexes" : 2,
"indexSize" : 389627904,
"ok" : 1
}
},
"objects" : 1999997,
"avgObjSize" : 243,
"dataSize" : 487045137,
"storageSize" : 716734464,
"numExtents" : 0,
"indexes" : 4,
"indexSize" : 880291840,
"fileSize" : 0,
"extentFreeList" : {
"num" : 0,
"totalSize" : 0
},
"ok" : 1
}
mongodb
asked Nov 18 '15 at 7:52
Ahmad Abu-HamidehAhmad Abu-Hamideh
154
I have two sharded Replica set
RS0
RS1
The balancer is doing chunk migration between primary at RS0 to the primary at RS1.
Once the primary server at RS1 goes down, then the secondary is elected as primary but I can see a strange thing. The migration of chunks stopped and the number of chunks stay the same and all the data inserted to the primary at RS1 in one chunk.
The balancer status is running but no new chunks have been added until I start again the original primary node then the migration is back to work again and the chunks have been added to the RS1.
Is this normal?
sh.status():
mongos> sh.status()
--- Sharding Status ---
sharding version: {
"_id" : 1,
"minCompatibleVersion" : 5,
"currentVersion" : 6,
"clusterId" : ObjectId("5649d9f147a1deaf459cd461")
}
shards:
{ "_id" : "rs0", "host" : "rs0/PrimaryShardA:27017,SecondaryShardA:270
17" }
{ "_id" : "rs1", "host" : "rs1/PrimaryShardB:27017,SecondaryShardA:250
17" }
balancer:
Currently enabled: yes
Currently running: no
Collections with active migrations:
mohe.alg started at Wed Nov 18 2015 05:35:19 GMT-0800 (Pacific S
tandard Time)
Failed balancer rounds in last 5 attempts: 0
Migration Results for the last 24 hours:
1170 : Success
databases:
{ "_id" : "admin", "partitioned" : false, "primary" : "config" }
{ "_id" : "moe", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "mohe", "partitioned" : true, "primary" : "rs0" }
mohe.alg
shard key: { "dept" : 1, "id" : 1 }
chunks:
rs0 7
rs1 8
{ "dept" : { "$minKey" : 1 }, "id" : { "$minKey" : 1 } }
-->> { "dept" : "C10", "id" : 10 } on : rs1 Timestamp(6, 1)
{ "dept" : "C10", "id" : 10 } -->> { "dept" : "C6", "id"
: 6 } on : rs0 Timestamp(7, 1)
{ "dept" : "C6", "id" : 6 } -->> { "dept" : "H10280", "i
d" : 10280 } on : rs0 Timestamp(2, 2)
{ "dept" : "H10280", "id" : 10280 } -->> { "dept" : "H18
119", "id" : 18119 } on : rs0 Timestamp(2, 3)
{ "dept" : "H18119", "id" : 18119 } -->> { "dept" : "M22
843", "id" : 22843 } on : rs1 Timestamp(3, 2)
{ "dept" : "M22843", "id" : 22843 } -->> { "dept" : "M29
224", "id" : 29224 } on : rs1 Timestamp(3, 3)
{ "dept" : "M29224", "id" : 29224 } -->> { "dept" : "X33
948", "id" : 33948 } on : rs0 Timestamp(4, 2)
{ "dept" : "X33948", "id" : 33948 } -->> { "dept" : "X38
974", "id" : 38974 } on : rs0 Timestamp(4, 3)
{ "dept" : "X38974", "id" : 38974 } -->> { "dept" : "X43
697", "id" : 43697 } on : rs1 Timestamp(5, 2)
{ "dept" : "X43697", "id" : 43697 } -->> { "dept" : "X49
726", "id" : 49726 } on : rs1 Timestamp(5, 3)
{ "dept" : "X49726", "id" : 49726 } -->> { "dept" : "X54
449", "id" : 54449 } on : rs0 Timestamp(6, 2)
{ "dept" : "X54449", "id" : 54449 } -->> { "dept" : "X61
987", "id" : 61987 } on : rs0 Timestamp(6, 3)
{ "dept" : "X61987", "id" : 61987 } -->> { "dept" : "X66
710", "id" : 66710 } on : rs1 Timestamp(7, 2)
{ "dept" : "X66710", "id" : 66710 } -->> { "dept" : "u74
489", "id" : 74489 } on : rs1 Timestamp(7, 3)
{ "dept" : "u74489", "id" : 74489 } -->> { "dept" : { "$
maxKey" : 1 }, "id" : { "$maxKey" : 1 } } on : rs1 Timestamp(7, 4)
{ "_id" : "stds", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "users", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "mongos", "partitioned" : false, "primary" : "rs1" }
{ "_id" : "test", "partitioned" : false, "primary" : "rs0" }
mongos>
rs0.status:
rs1:PRIMARY> rs.status()
{
"set" : "rs1",
"date" : ISODate("2015-11-19T05:24:53.577Z"),
"myState" : 1,
"members" : [
{
"_id" : 0,
"name" : "PrimaryShardB:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 79578,
"optime" : Timestamp(1447910579, 262),
"optimeDate" : ISODate("2015-11-19T05:22:59Z"),
"electionTime" : Timestamp(1447831123, 1),
"electionDate" : ISODate("2015-11-18T07:18:43Z"),
"configVersion" : 8,
"self" : true
},
{
"_id" : 2,
"name" : "Config2Arbiter2:30000",
"health" : 1,
"state" : 7,
"stateStr" : "ARBITER",
"uptime" : 79578,
"lastHeartbeat" : ISODate("2015-11-19T05:24:51.768Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:24:52Z"),
"pingMs" : 0,
"configVersion" : 8
},
{
"_id" : 3,
"name" : "SecondaryShardB:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 52802,
"optime" : Timestamp(1447910579, 262),
"optimeDate" : ISODate("2015-11-19T05:22:59Z"),
"lastHeartbeat" : ISODate("2015-11-19T05:24:52.988Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:24:51.650Z"
),
"pingMs" : 0,
"syncingTo" : "PrimaryShardB:27017",
"configVersion" : 8
}
],
"ok" : 1,
"$gleStats" : {
"lastOpTime" : Timestamp(1447857889, 1),
"electionId" : ObjectId("564c26530b899b6501a068b5")
}
}
rs1:PRIMARY>
rs1.status:
> rs.status()
{
"set" : "rs0",
"date" : ISODate("2015-11-19T05:22:45.355Z"),
"myState" : 1,
"members" : [
{
"_id" : 0,
"name" : "PrimaryShardA:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 74,
"optime" : Timestamp(1447910558, 129),
"optimeDate" : ISODate("2015-11-19T05:22:38Z"),
"electionTime" : Timestamp(1447910499, 1),
"electionDate" : ISODate("2015-11-19T05:21:39Z"),
"configVersion" : 5,
"self" : true
},
{
"_id" : 1,
"name" : "SecondaryShardA:27017",
"health" : 1,
"state" : 2,
"stateStr" : "SECONDARY",
"uptime" : 73,
"optime" : Timestamp(1447910558, 129),
"optimeDate" : ISODate("2015-11-19T05:22:38Z"),
"lastHeartbeat" : ISODate("2015-11-19T05:22:43.661Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:22:44.703Z"
),
"pingMs" : 0,
"syncingTo" : "PrimaryShardA:27017",
"configVersion" : 5
},
{
"_id" : 2,
"name" : "config1arb1:30000",
"health" : 1,
"state" : 7,
"stateStr" : "ARBITER",
"uptime" : 73,
"lastHeartbeat" : ISODate("2015-11-19T05:22:43.670Z"),
"lastHeartbeatRecv" : ISODate("2015-11-19T05:22:43.648Z"
),
"pingMs" : 0,
"configVersion" : 5
}
],
"ok" : 1,
"$gleStats" : {
"lastOpTime" : Timestamp(0, 0),
"electionId" : ObjectId("564d5c6369be81b02ca1eb55")
}
}
>
mongos db.stats()
mongos> db.stats()
{
"raw" : {
"rs0/PrimaryShardA:27017,SecondaryShardA:27017" : {
"db" : "mohe",
"collections" : 1,
"objects" : 1121765,
"avgObjSize" : 243.47020900099398,
"dataSize" : 273116359,
"storageSize" : 283131904,
"numExtents" : 0,
"indexes" : 2,
"indexSize" : 490663936,
"ok" : 1,
"$gleStats" : {
"lastOpTime" : Timestamp(0, 0),
"electionId" : ObjectId("564dcd0b1999c29e17f28f5
5")
}
},
"rs1/PrimaryShardB:27017,SecondaryShardB:27017" : {
"db" : "mohe",
"collections" : 1,
"objects" : 878232,
"avgObjSize" : 243.5902791062043,
"dataSize" : 213928778,
"storageSize" : 433602560,
"numExtents" : 0,
"indexes" : 2,
"indexSize" : 389627904,
"ok" : 1
}
},
"objects" : 1999997,
"avgObjSize" : 243,
"dataSize" : 487045137,
"storageSize" : 716734464,
"numExtents" : 0,
"indexes" : 4,
"indexSize" : 880291840,
"fileSize" : 0,
"extentFreeList" : {
"num" : 0,
"totalSize" : 0
},
"ok" : 1
}
mongodb
mongodb
asked Nov 18 '15 at 7:52
Ahmad Abu-HamidehAhmad Abu-Hamideh
154
asked Nov 18 '15 at 7:52
Ahmad Abu-HamidehAhmad Abu-Hamideh
154
edited Nov 23 '15 at 5:28
Ahmad Abu-Hamideh
asked Nov 18 '15 at 7:52
Ahmad Abu-HamidehAhmad Abu-Hamideh
154
asked Nov 18 '15 at 7:52
Ahmad Abu-HamidehAhmad Abu-Hamideh
154
asked Nov 18 '15 at 7:52
Ahmad Abu-HamidehAhmad Abu-Hamideh
154
154
bumped to the homepage by Community♦ 4 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 4 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
1
Can you please correct your question (correct spelling and punctuation make it much easier to understand) and add the anonymized output ofsh.status()? The output ofrs.status()of both shards could be helpful, too.
– Markus W Mahlberg
Nov 18 '15 at 9:50
Done my friend , please check now
– Ahmad Abu-Hamideh
Nov 18 '15 at 14:04
Furthermore: "{ "_id" : "rs1", "host" : "rs1/PrimaryShardB:27017,SecondaryShardA:25017" }" This is a mistake coming from anonymization, I assume?
– Markus W Mahlberg
Nov 18 '15 at 14:35
And your secondary isn't reachable as perrs.status():stateStr" : "(not reachable/healthy)". Please add the output ofrs.status()for "rs1", too. I have the feeling that this might be the same there, which would explain the behavior you are experiencing.
– Markus W Mahlberg
Nov 18 '15 at 14:39
thanks for your reply , i did that in purpose , as i need to have one server as secondary for both replica set RS0 and RS1.. anyway i removed it and added a new server to the RS1 as SecondaryShardB and re-did the scenario... but still the same , as the data goes to only one shard RS1 until i re-start the second shard rs0 primary server
– Ahmad Abu-Hamideh
Nov 18 '15 at 15:03
|
show 6 more comments
1
Can you please correct your question (correct spelling and punctuation make it much easier to understand) and add the anonymized output ofsh.status()? The output ofrs.status()of both shards could be helpful, too.
– Markus W Mahlberg
Nov 18 '15 at 9:50
Done my friend , please check now
– Ahmad Abu-Hamideh
Nov 18 '15 at 14:04
Furthermore: "{ "_id" : "rs1", "host" : "rs1/PrimaryShardB:27017,SecondaryShardA:25017" }" This is a mistake coming from anonymization, I assume?
– Markus W Mahlberg
Nov 18 '15 at 14:35
And your secondary isn't reachable as perrs.status():stateStr" : "(not reachable/healthy)". Please add the output ofrs.status()for "rs1", too. I have the feeling that this might be the same there, which would explain the behavior you are experiencing.
– Markus W Mahlberg
Nov 18 '15 at 14:39
thanks for your reply , i did that in purpose , as i need to have one server as secondary for both replica set RS0 and RS1.. anyway i removed it and added a new server to the RS1 as SecondaryShardB and re-did the scenario... but still the same , as the data goes to only one shard RS1 until i re-start the second shard rs0 primary server
– Ahmad Abu-Hamideh
Nov 18 '15 at 15:03
1
1
Can you please correct your question (correct spelling and punctuation make it much easier to understand) and add the anonymized output of
sh.status()? The output of rs.status() of both shards could be helpful, too.– Markus W Mahlberg
Nov 18 '15 at 9:50
Can you please correct your question (correct spelling and punctuation make it much easier to understand) and add the anonymized output of
sh.status()? The output of rs.status() of both shards could be helpful, too.– Markus W Mahlberg
Nov 18 '15 at 9:50
Done my friend , please check now
– Ahmad Abu-Hamideh
Nov 18 '15 at 14:04
Done my friend , please check now
– Ahmad Abu-Hamideh
Nov 18 '15 at 14:04
Furthermore: "{ "_id" : "rs1", "host" : "rs1/PrimaryShardB:27017,SecondaryShardA:25017" }" This is a mistake coming from anonymization, I assume?
– Markus W Mahlberg
Nov 18 '15 at 14:35
Furthermore: "{ "_id" : "rs1", "host" : "rs1/PrimaryShardB:27017,SecondaryShardA:25017" }" This is a mistake coming from anonymization, I assume?
– Markus W Mahlberg
Nov 18 '15 at 14:35
And your secondary isn't reachable as per
rs.status(): stateStr" : "(not reachable/healthy)". Please add the output of rs.status() for "rs1", too. I have the feeling that this might be the same there, which would explain the behavior you are experiencing.– Markus W Mahlberg
Nov 18 '15 at 14:39
And your secondary isn't reachable as per
rs.status(): stateStr" : "(not reachable/healthy)". Please add the output of rs.status() for "rs1", too. I have the feeling that this might be the same there, which would explain the behavior you are experiencing.– Markus W Mahlberg
Nov 18 '15 at 14:39
thanks for your reply , i did that in purpose , as i need to have one server as secondary for both replica set RS0 and RS1.. anyway i removed it and added a new server to the RS1 as SecondaryShardB and re-did the scenario... but still the same , as the data goes to only one shard RS1 until i re-start the second shard rs0 primary server
– Ahmad Abu-Hamideh
Nov 18 '15 at 15:03
thanks for your reply , i did that in purpose , as i need to have one server as secondary for both replica set RS0 and RS1.. anyway i removed it and added a new server to the RS1 as SecondaryShardB and re-did the scenario... but still the same , as the data goes to only one shard RS1 until i re-start the second shard rs0 primary server
– Ahmad Abu-Hamideh
Nov 18 '15 at 15:03
|
show 6 more comments
1 Answer
1
active
oldest
votes
0
Can you paste the output of db.chunk.count() and db.chunk().find().pretty() commands?
It will be on config servers.
answered Nov 23 '15 at 18:21
harshavmbharshavmb
18519
add a comment |
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Can you paste the output of db.chunk.count() and db.chunk().find().pretty() commands?
It will be on config servers.
answered Nov 23 '15 at 18:21
harshavmbharshavmb
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Can you paste the output of db.chunk.count() and db.chunk().find().pretty() commands?
It will be on config servers.
answered Nov 23 '15 at 18:21
harshavmbharshavmb
18519
add a comment |
0
0
0
Can you paste the output of db.chunk.count() and db.chunk().find().pretty() commands?
It will be on config servers.
answered Nov 23 '15 at 18:21
harshavmbharshavmb
18519
Can you paste the output of db.chunk.count() and db.chunk().find().pretty() commands?
It will be on config servers.
answered Nov 23 '15 at 18:21
harshavmbharshavmb
18519
answered Nov 23 '15 at 18:21
harshavmbharshavmb
18519
answered Nov 23 '15 at 18:21
harshavmbharshavmb
18519
answered Nov 23 '15 at 18:21
harshavmbharshavmb
18519
18519
add a comment |
add a comment |
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Can you please correct your question (correct spelling and punctuation make it much easier to understand) and add the anonymized output of
sh.status()? The output ofrs.status()of both shards could be helpful, too.– Markus W Mahlberg
Nov 18 '15 at 9:50
Done my friend , please check now
– Ahmad Abu-Hamideh
Nov 18 '15 at 14:04
Furthermore: "{ "_id" : "rs1", "host" : "rs1/PrimaryShardB:27017,SecondaryShardA:25017" }" This is a mistake coming from anonymization, I assume?
– Markus W Mahlberg
Nov 18 '15 at 14:35
And your secondary isn't reachable as per
rs.status():stateStr" : "(not reachable/healthy)". Please add the output ofrs.status()for "rs1", too. I have the feeling that this might be the same there, which would explain the behavior you are experiencing.– Markus W Mahlberg
Nov 18 '15 at 14:39
thanks for your reply , i did that in purpose , as i need to have one server as secondary for both replica set RS0 and RS1.. anyway i removed it and added a new server to the RS1 as SecondaryShardB and re-did the scenario... but still the same , as the data goes to only one shard RS1 until i re-start the second shard rs0 primary server
– Ahmad Abu-Hamideh
Nov 18 '15 at 15:03