[英]MongoDB query issue on cluster
I have created cluster with 2 shards. 我创建了具有2个分片的集群。 Please check my shards status below.
请检查下面的分片状态。
shards:
{ "_id" : "shard0000", "host" : "172.20.1.66:27021" }
{ "_id" : "shard0001", "host" : "172.20.1.66:27022" }
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
databases:
{ "_id" : "admin", "partitioned" : false, "primary" : "config" }
{ "_id" : "symfony", "partitioned" : false, "primary" : "shard0000" }
{ "_id" : "testDB", "partitioned" : true, "primary" : "shard0001" }
testDB.products
shard key: { "_id" : "hashed" }
chunks:
shard0001 2
{ "_id" : { "$minKey" : 1 } } -->> { "_id" : NumberLong(0) } on : shard0001 Timestamp(1, 0)
{ "_id" : NumberLong(0) } -->> { "_id" : { "$maxKey" : 1 } } on : shard0001 Timestamp(1, 1)
I have inserted more than 100000 docs and tried to fetch data using query. 我插入了超过100000个文档,并尝试使用查询获取数据。
db.products.find();
It is returning error as shown below. 它返回错误,如下所示。
Error: error: {
"$err" : "setShardVersion failed shard: shard0001:172.20.1.66:27022 { oldVersion: Timestamp 0|0, oldVersionEpoch: ObjectId('000000000000000000000000'), ns: \"testDB.products\", version: Timestamp 1000|1, versionEpoch: ObjectId('5668170dbd53962a250383f8'), globalVersion: Timestamp 0|0, globalVersionEpoch: ObjectId('000000000000000000000000'), reloadConfig: true, ok: 0.0, errmsg: \"could not refresh metadata for testDB.products with requested shard version 1|1||5668170dbd53962a250383f8, stored shard version is 0|0||00000000000000...\" }",
"code" : 10429,
"shard" : "shard0001"
}
Can some one help me to resolve this issue. 有人可以帮我解决这个问题。
I have seen this error happening when some of the servers could not contact the config servers. 我看到当某些服务器无法联系配置服务器时发生此错误。 Please make sure:
请确保:
mongos
instance can contact the config server(s). mongos
实例可以联系配置服务器。 mongod
instances can contact the config server(s). mongod
实例都可以联系配置服务器。 Also, look into the logs of all servers in your setup and look for errors. 另外,查看设置中所有服务器的日志并查找错误。
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