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Type:
Improvement
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Resolution: Works as Designed
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Priority:
Major - P3
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None
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Affects Version/s: None
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Component/s: Sharding
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None
sh.status() output
active mongoses:
"3.6.2" : 30
balancer:
Currently enabled: yes
Currently running: no
Failed balancer rounds in last 5 attempts: 0
Migration Results for the last 24 hours:
No recent migrations
No locks
mongos> db.locks.find({'_id': 'balancer'}).pretty()
mongos>
This collection is sharded so it ought to be doing something. It's done nothing in over 4 days and I have multiple collections out of balance that it should be working on.
mongos> db.chunks.aggregate([ { $match: {ns: "some.collection"}}, { $group:{ _id: "$shard", cnt:
{ $sum: 1}} }, {$sort: {"_id": 1}} ]);
{ "_id" : "rs0", "cnt" : 647 } { "_id" : "rs1", "cnt" : 648 } { "_id" : "rs2", "cnt" : 648 } { "_id" : "rs3", "cnt" : 648 } { "_id" : "rs4", "cnt" : 648 } { "_id" : "rs5", "cnt" : 648 } { "_id" : "rs6", "cnt" : 649 } { "_id" : "rs7", "cnt" : 648 } { "_id" : "rs8", "cnt" : 642 } { "_id" : "rs9", "cnt" : 591 }mongos> printjson(sh.isBalancerRunning()); printjson(sh.isBalancerRunning()); new ISODate(); printjson(sh.startBalancer()); new ISODate(); db.version()
false
false
assert.soon failed, msg:Waited too long for lock balancer to change to state undefined
doassert@src/mongo/shell/assert.js:15:14
assert.soon@src/mongo/shell/assert.js:199:13
sh.waitForDLock@src/mongo/shell/utils_sh.js:194:1
sh.waitForBalancer@src/mongo/shell/utils_sh.js:287:9
sh.startBalancer@src/mongo/shell/utils_sh.js:164:5
@(shell):1:96
2018-04-16T10:19:51.289-0700 E QUERY [thread1] Error: assert.soon failed, msg:Waited too long for lock balancer to change to state undefined :
doassert@src/mongo/shell/assert.js:15:14
assert.soon@src/mongo/shell/assert.js:199:13
sh.waitForDLock@src/mongo/shell/utils_sh.js:194:1
sh.waitForBalancer@src/mongo/shell/utils_sh.js:287:9
sh.startBalancer@src/mongo/shell/utils_sh.js:164:5
@(shell):1:96
mongos> db.version()
3.6.2
- is related to
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SERVER-34504 sh.getBalancerState does not consider the {mode:off} balancer setting
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- Closed
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