MongoDB 学习
-- 在创建shardcollection的时候报错mongos> db.runCommand({shardcollection:'test.test',key:{_id:1}})
{
"assertion" : "invalid parameter: expected an object ()",
"assertionCode" : 10065,
"errmsg" : "db assertion failure",
"ok" : 0
-- 原因：启动mongod的时候添加了replSet的选项导致找不到master
-- 解决：重新启动mongod，将replSet选项取消
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-- 由于服务器时间不同步导致auto sharding失败
Fri Jan6 12:46:09 caught exception while doing balance: error checking clock skew of cluster 10.192.9.110:20000,10.192.
136.242:20000,10.192.9.90:20000 :: caused by :: 13650 clock skew of the cluster 10.192.9.110:20000,10.192.136.242:20000,10.192.9.90:
20000 is too far out of bounds to allow distributed locking.
Fri Jan6 13:14:24 warning: - cmd: { splitChunk: "test1.test1", keyPattern: { _id: 1.0 }, min: { _id: Min
Key }, max: { _id: MaxKey }, from: "10.192.9.110:10000", splitKeys: [ { _id: 0.0 } ], shardId: "test1.test1-_id_MinKey", configdb: "
10.192.9.110:20000,10.192.136.242:20000,10.192.9.90:20000" } result: { errmsg: "Error locking distributed lock for split. :: caused
by :: 13651 error checking clock skew of cluster 10.192.9.110:20000,10.192.136.242:20000,10.192.9....", ok: 0.0 }
cp /usr/share/zoneinfo/GMT /etc/localtime
ntpdate 10.192.0.12 -- 时间服务器
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-- config服务一直无缘无故停止
Mon Jan9 07:04:56 moveChunk result: { cause: { assertion: "Can't take a write lock while out of disk space", assertionCode: 14031, errmsg: "db assertion failure", ok: 0.0 }, errmsg: "moveChunk failed to engage TO-shard in the data transfer: db assertion failure", ok: 0.0 }
Mon Jan9 07:04:56 balancer move failed: { cause: { assertion: "Can't take a write lock while out of disk space", assertionCode: 14031, errmsg: "db assertion failure", ok: 0.0 }, errmsg: "moveChunk failed to engage TO-shard in the data transfer: db assertion failure", ok: 0.0 } from: s2 to: s1 chunk: { _id: "test.test-_id_16690.0", lastmod: Timestamp 3000|1, ns: "test.test", min: { _id: 16690.0 }, max: { _id: 50791.0 }, shard: "s2" }
问题原因：10.192.9.90磁盘空间满
解决方案：增加磁盘空间
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