- mongodb-org-4.0.5-1.el7.x86_64
- mongodb-org-server-4.0.5-1.el7.x86_64
- mongodb-org-mongos-4.0.5-1.el7.x86_64
- mongodb-org-tools-4.0.5-1.el7.x86_64
- mongodb-org-shell-4.0.5-1.el7.x86_64
[root@dc01 ~]# rpm -ql mongodb-org-4.0.5-1.el7.x86_64
(没有包含文件)
[root@dc01 ~]#
[root@dc01 ~]# rpm -ql mongodb-org-server-4.0.5-1.el7.x86_64
/etc/mongod.conf
/lib/systemd/system/mongod.service
/usr/bin/mongod
/usr/share/doc/mongodb-org-server-4.0.5
/usr/share/doc/mongodb-org-server-4.0.5/LICENSE-Community.txt
/usr/share/doc/mongodb-org-server-4.0.5/MPL-2
/usr/share/doc/mongodb-org-server-4.0.5/README
/usr/share/doc/mongodb-org-server-4.0.5/THIRD-PARTY-NOTICES
/usr/share/man/man1/mongod.1
/var/lib/mongo
/var/log/mongodb
/var/log/mongodb/mongod.log
/var/run/mongodb
[root@dc01 ~]#
[root@dc01 ~]# rpm -ql mongodb-org-mongos-4.0.5-1.el7.x86_64
/usr/bin/mongos
/usr/share/man/man1/mongos.1
[root@dc01 ~]#
[root@dc01 ~]# rpm -ql mongodb-org-tools-4.0.5-1.el7.x86_64
/usr/bin/bsondump
/usr/bin/install_compass
/usr/bin/mongodump
/usr/bin/mongoexport
/usr/bin/mongofiles
/usr/bin/mongoimport
/usr/bin/mongorestore
/usr/bin/mongostat
/usr/bin/mongotop
/usr/share/man/man1/bsondump.1
/usr/share/man/man1/mongodump.1
/usr/share/man/man1/mongoexport.1
/usr/share/man/man1/mongofiles.1
/usr/share/man/man1/mongoimport.1
/usr/share/man/man1/mongorestore.1
/usr/share/man/man1/mongostat.1
/usr/share/man/man1/mongotop.1
[root@dc01 ~]#
[root@dc01 ~]# rpm -ql mongodb-org-shell-4.0.5-1.el7.x86_64
/usr/bin/mongo
/usr/share/man/man1/mongo.1
[root@dc01 ~]#
[root@dc01 ~]#
MongoDB Cluster Architecture：
mongos-01：10.12.109.175
mongos-01：10.12.109.176
mongos-01：10.12.109.178
mkdir -p /var/lib/mongodb/set01
mkdir -p /var/lib/mongodb/set02
mkdir -p /var/lib/mongodb/set03
mkdir -p /var/lib/mongodb/set04
mkdir -p /var/lib/mongodb/set05
touch /var/log/mongodb/set01-24001.log
touch /var/log/mongodb/set02-24002.log
touch /var/log/mongodb/set02-24003.log
touch /var/log/mongodb/set02-24004.log
touch /var/log/mongodb/set02-24005.log
mkdir -p /var/lib/mongodb/config
touch /var/log/mongodb/config.log
touch /var/log/mongodb/mongos.log
# 在每台机器上执行下列命令 Create the Config Server Replica Set
nohup mongod --configsvr --bind_ip_all --port 28017 --replSet configSet --dbpath /var/lib/mongodb/config --logpath /var/log/mongodb/config.log &
# Connect to one of the config servers
mongo --host 10.12.109.176 --port 28017
# Initiate the replica set
rs.initiate(
{
_id: "configSet",
configsvr: true,
members: [
{ _id : 0, host : "10.12.109.175:28017" },
{ _id : 1, host : "10.12.109.176:28017" },
{ _id : 2, host : "10.12.109.178:28017" }
]
}
)
# 在每台机器上执行下列命令 Create the Shard Replica Sets
nohup mongod --shardsvr --replSet set01 --bind_ip_all --port 24001 --dbpath /var/lib/mongodb/set01 --logpath /var/log/mongodb/set01-24001.log --logappend --oplogSize 1024 &
nohup mongod --shardsvr --replSet set02 --bind_ip_all --port 24002 --dbpath /var/lib/mongodb/set02 --logpath /var/log/mongodb/set02-24002.log --logappend --oplogSize 1024 &
nohup mongod --shardsvr --replSet set03 --bind_ip_all --port 24003 --dbpath /var/lib/mongodb/set03 --logpath /var/log/mongodb/set02-24003.log --logappend --oplogSize 1024 &
nohup mongod --shardsvr --replSet set04 --bind_ip_all --port 24004 --dbpath /var/lib/mongodb/set04 --logpath /var/log/mongodb/set02-24004.log --logappend --oplogSize 1024 &
nohup mongod --shardsvr --replSet set05 --bind_ip_all --port 24005 --dbpath /var/lib/mongodb/set05 --logpath /var/log/mongodb/set02-24005.log --logappend --oplogSize 1024 &
# Connect to one member of the shard replica set
mongo --host 10.12.109.176 --port 24001
# Initiate the replica set
rs.initiate(
{
_id : "set01",
members: [
{ _id : 0, host : "10.12.109.175:24001" },
{ _id : 1, host : "10.12.109.176:24001" },
{ _id : 2, host : "10.12.109.178:24001" }
]
}
)
# Connect to one member of the shard replica set
mongo --host 10.12.109.176 --port 24002
# Initiate the replica set
rs.initiate(
{
_id : "set02",
members: [
{ _id : 0, host : "10.12.109.175:24002" },
{ _id : 1, host : "10.12.109.176:24002" },
{ _id : 2, host : "10.12.109.178:24002" }
]
}
)
# Connect to one member of the shard replica set
mongo --host 10.12.109.176 --port 24003
# Initiate the replica set
rs.initiate(
{
_id : "set03",
members: [
{ _id : 0, host : "10.12.109.175:24003" },
{ _id : 1, host : "10.12.109.176:24003" },
{ _id : 2, host : "10.12.109.178:24003" }
]
}
)
# Connect to one member of the shard replica set
mongo --host 10.12.109.176 --port 24004
# Initiate the replica set
rs.initiate(
{
_id : "set04",
members: [
{ _id : 0, host : "10.12.109.175:24004" },
{ _id : 1, host : "10.12.109.176:24004" },
{ _id : 2, host : "10.12.109.178:24004" }
]
}
)
# Connect to one member of the shard replica set
mongo --host 10.12.109.176 --port 24005
# Initiate the replica set
rs.initiate(
{
_id : "set05",
members: [
{ _id : 0, host : "10.12.109.175:24005" },
{ _id : 1, host : "10.12.109.176:24005" },
{ _id : 2, host : "10.12.109.178:24005" }
]
}
)
# Connect a mongos to the Sharded Cluster
nohup mongos --bind_ip_all --port 27017 --configdb "configSet/10.12.109.175:28017,10.12.109.176:28017,10.12.109.178:28017" --logpath /var/log/mongodb/mongos.log &
# Connect to one of the mongos servers
mongo --host 10.12.109.176 --port 27017
# Add Shards to the Cluster
sh.addShard( "set01/10.12.109.175:24001") # SECONDARY
sh.addShard( "set01/10.12.109.176:24001") # PRIMARY
sh.addShard( "set01/10.12.109.178:24001") # SECONDARY
sh.addShard( "set02/10.12.109.175:24002") # SECONDARY
sh.addShard( "set02/10.12.109.176:24002") # PRIMARY
sh.addShard( "set02/10.12.109.178:24002") # SECONDARY
sh.addShard( "set03/10.12.109.175:24003")
sh.addShard( "set03/10.12.109.176:24003")
sh.addShard( "set03/10.12.109.178:24003")
sh.addShard( "set04/10.12.109.175:24004")
sh.addShard( "set04/10.12.109.176:24004")
sh.addShard( "set04/10.12.109.178:24004")
sh.addShard( "set05/10.12.109.175:24005")
sh.addShard( "set05/10.12.109.176:24005")
sh.addShard( "set05/10.12.109.178:24005")
# Enable Sharding for a Database
sh.enableSharding("<database>")
# Shard a Collection
sh.shardCollection("<database>.<collection>", { <key> : <direction> } )
# 方法一：
# 停止 mongo 服务后进行修复操作
mongod --repair --dbpath /var/lib/mongodb/set01
mongod --repair --dbpath /var/lib/mongodb/set02
mongod --repair --dbpath /var/lib/mongodb/set03
mongod --repair --dbpath /var/lib/mongodb/set04
mongod --repair --dbpath /var/lib/mongodb/set05
# 方法二：
# 导入大批量数据之前的磁盘使用情况
[root@dc01 ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/cl-root 6.0T 57G 6.0T 1% /
devtmpfs 16G 0 16G 0% /dev
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 16G 8.6M 16G 1% /run
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/sda2 1014M 139M 876M 14% /boot
tmpfs 3.2G 0 3.2G 0% /run/user/0
[root@dc01 ~]#
# 导入大批量数据
# 导入大批量数据之后的磁盘使用情况
[root@dc01 ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/cl-root 6.0T 88G 5.9T 2% /
devtmpfs 16G 0 16G 0% /dev
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 16G 8.6M 16G 1% /run
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/sda2 1014M 139M 876M 14% /boot
tmpfs 3.2G 100K 3.2G 1% /run/user/0
[root@dc01 ~]#
# 导入大批量数据之后 mongo 统计情况
mongos> show dbs
admin 0.000GB
config 0.001GB
myDatabase 6.074GB
mongos>
mongos> use myDatabase
switched to db myDatabase
mongos>
mongos> show collections
inventory
mongos> db.inventory.find().count()
212060100
mongos>
mongos>
# 删除部分数据
mongos> db.inventory.deleteMany({ item: "mat" })
{ "acknowledged" : true, "deletedCount" : 70686000 }
mongos> db.inventory.find().count()
141374100
mongos> show dbs
admin 0.000GB
config 0.001GB
myDatabase 6.273GB
mongos>
# 使用 compact 修复磁盘
use myDatabase
db.runCommand ( { compact: 'inventory', force: true } )
# 使用 compact 修复磁盘后的 mongo 统计情况
mongos> show dbs
admin 0.000GB
config 0.001GB
myDatabase 5.837GB
mongos> use myDatabase
switched to db myDatabase
mongos> show collections
inventory
mongos> db.inventory.find().count()
141374100
mongos>
# 使用 compact 修复磁盘后的磁盘统计情况
[root@dc01 ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/cl-root 6.0T 88G 5.9T 2% /
devtmpfs 16G 0 16G 0% /dev
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 16G 8.6M 16G 1% /run
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/sda2 1014M 139M 876M 14% /boot
tmpfs 3.2G 100K 3.2G 1% /run/user/0
[root@dc01 ~]#
# 再次删除部分数据
mongos>
mongos> db.inventory.deleteMany({ item: "journal" })
{ "acknowledged" : true, "deletedCount" : 70688100 }
mongos>
mongos> db.inventory.find().count()
70686000
mongos>
mongos> show dbs
admin 0.000GB
config 0.001GB
myDatabase 5.837GB
mongos>
# 删除数据后的磁盘统计情况
[root@dc01 ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/cl-root 6.0T 90G 5.9T 2% /
devtmpfs 16G 0 16G 0% /dev
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 16G 8.6M 16G 1% /run
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/sda2 1014M 139M 876M 14% /boot
tmpfs 3.2G 100K 3.2G 1% /run/user/0
[root@dc01 ~]#
# 使用 compact 修复磁盘
use myDatabase
db.runCommand ( { compact: 'inventory', force: true } )
# 使用 compact 修复磁盘后的磁盘统计情况
[root@dc01 ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/cl-root 6.0T 89G 5.9T 2% /
devtmpfs 16G 0 16G 0% /dev
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 16G 8.6M 16G 1% /run
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/sda2 1014M 139M 876M 14% /boot
tmpfs 3.2G 100K 3.2G 1% /run/user/0
[root@dc01 ~]#
mongos> show dbs
admin 0.000GB
config 0.001GB
myDatabase 5.301GB
mongos>
# 删除所有数据
mongos> db.inventory.deleteMany({})
{ "acknowledged" : true, "deletedCount" : 70686000 }
mongos> show dbs
admin 0.000GB
config 0.001GB
myDatabase 5.137GB
mongos> db.inventory.find().count()
0
mongos>
[root@dc01 ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/mapper/cl-root 6.0T 92G 5.9T 2% /
devtmpfs 16G 0 16G 0% /dev
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 16G 8.6M 16G 1% /run
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/sda2 1014M 139M 876M 14% /boot
tmpfs 3.2G 136K 3.2G 1% /run/user/0
[root@dc01 ~]#
-
WiredTiger Storage Engine (Default)
- Journaling
-
In-Memory Storage Engine
-
MMAPv1 Storage Engine (Deprecated as of MongoDB 4.0)
-
GridFS
- applyOps
Internal command that applies oplog entries to the current data set.
- isMaster
Displays information about this member’s role in the replica set, including whether it is the master.
- replSetAbortPrimaryCatchUp
Forces the elected primary to abort sync (catch up) then complete the transition to primary.
- replSetFreeze
Prevents the current member from seeking election as primary for a period of time.
- replSetGetConfig
Returns the replica set’s configuration object.
- replSetGetStatus
Returns a document that reports on the status of the replica set.
- replSetInitiate
Initializes a new replica set.
- replSetMaintenance
Enables or disables a maintenance mode, which puts a secondary node in a RECOVERING state. 启用或禁用维护模式，该模式将辅助节点置于RECOVERING状态。
- replSetReconfig
Applies a new configuration to an existing replica set.
- replSetResizeOplog
Dynamically resizes the oplog for a replica set member. Available for WiredTiger storage engine only.
- replSetStepDown
Forces the current primary to step down and become a secondary, forcing an election.
- replSetSyncFrom
Explicitly override the default logic for selecting a member to replicate from.
- addShard
Adds a shard to a sharded cluster.
- addShardToZone
Associates a shard with a zone. Supports configuring zones in sharded clusters. 将分片与区域关联。 支持在分片群集中配置区域
- balancerStart
Starts a balancer thread.
- balancerStatus
Returns information on the balancer status.
- balancerStop
Stops the balancer thread.
- checkShardingIndex
Internal command that validates index on shard key.
- cleanupOrphaned
Removes orphaned data with shard key values outside of the ranges of the chunks owned by a shard. 使用分片所拥有的块范围之外的分片键值删除孤立数据。
- enableSharding
Enables sharding on a specific database.
- flushRouterConfig
Forces an update to the cluster metadata cached by a mongos.
- getShardMap
Internal command that reports on the state of a sharded cluster.
- getShardVersion
Internal command that returns the config server version.
- isdbgrid
Verifies that a process is a mongos.
- listShards
Returns a list of configured shards.
- medianKey
Deprecated internal command. See splitVector.
- moveChunk
Internal command that migrates chunks between shards.
- movePrimary
Reassigns the primary shard when removing a shard from a sharded cluster. 从分片群集中删除分片时重新分配主分片。
- mergeChunks
Provides the ability to combine chunks on a single shard. 提供在单个分片上组合块的功能。
- removeShard
Starts the process of removing a shard from a sharded cluster.
- removeShardFromZone
Removes the association between a shard and a zone. Supports configuring zones in sharded clusters.
- setShardVersion
Internal command to sets the config server version.
- shardCollection
Enables the sharding functionality for a collection, allowing the collection to be sharded.
- shardingState
Reports whether the mongod is a member of a sharded cluster.
- split
Creates a new chunk.
-
splitChunk Internal command to split chunk. Instead use the methods sh.splitFind() and sh.splitAt().
-
splitVector
Internal command that determines split points.
- unsetSharding
Internal command that affects connections between instances in a MongoDB deployment.
- updateZoneKeyRange
Adds or removes the association between a range of sharded data and a zone. Supports configuring zones in sharded clusters.
- clean
Internal namespace administration command.
- clone
Deprecated. Copies a database from a remote host to the current host.
- cloneCollection
Copies a collection from a remote host to the current host.
- cloneCollectionAsCapped
Copies a non-capped collection as a new capped collection.
- collMod
Add options to a collection or modify a view definition.
- compact
Defragments a collection and rebuilds the indexes.
Rewrites and defragments all data and indexes in a collection. On WiredTiger databases, this command will release unneeded disk space to the operating system. 对集合中的所有数据和索引进行重写和碎片整理。 在WiredTiger数据库上，此命令将向操作系统释放不需要的磁盘空间。
- connPoolSync
Internal command to flush connection pool.
- convertToCapped
Converts a non-capped collection to a capped collection.
- copydb
Deprecated. Copies a database from a remote host to the current host.
- create
Creates a collection or a view.
- createIndexes
Builds one or more indexes for a collection.
- currentOp
Returns a document that contains information on in-progress operations for the database instance.
- drop
Removes the specified collection from the database.
- dropDatabase
Removes the current database.
- dropIndexes
Removes indexes from a collection.
- filemd5
Returns the md5 hash for files stored using GridFS.
- fsync
Flushes pending writes to the storage layer and locks the database to allow backups.
- fsyncUnlock
Unlocks one fsync lock.
- getParameter
Retrieves configuration options.
- killCursors
Kills the specified cursors for a collection.
- killOp
Terminates an operation as specified by the operation ID.
- listCollections
Returns a list of collections in the current database.
- listDatabases
Returns a document that lists all databases and returns basic database statistics.
- listIndexes
Lists all indexes for a collection.
- logRotate
Rotates the MongoDB logs to prevent a single file from taking too much space.
- reIndex
Rebuilds all indexes on a collection.
- renameCollection
Changes the name of an existing collection.
- repairDatabase
Rebuilds the database and indexes by discarding invalid or corrupt data.
Rebuilds the database and indexes by discarding invalid or corrupt data that may be present due to an unexpected system restart or shutdown. repairDatabase is analogous to a fsck command for file systems. 通过丢弃由于意外系统重新启动或关闭而可能存在的无效或损坏数据来重建数据库和索引。 repairDatabase类似于文件系统的fsck命令。
- setFeatureCompatibilityVersion
Enables or disables features that persist data that are backwards-incompatible.
- setParameter
Modifies configuration options.
- shutdown
Shuts down the mongod or mongos process.
- touch
Loads documents and indexes from data storage to memory.
- availableQueryOptions
Internal command that reports on the capabilities of the current MongoDB instance.
- buildInfo
Displays statistics about the MongoDB build.
- collStats
Reports storage utilization statics for a specified collection.
- connPoolStats
Reports statistics on the outgoing connections from this MongoDB instance to other MongoDB instances in the deployment.
- connectionStatus
Reports the authentication state for the current connection.
- cursorInfo
Removed in MongoDB 3.2. Replaced with metrics.cursor.
- dataSize
Returns the data size for a range of data. For internal use.
- dbHash
Returns hash value a database and its collections.
- dbStats
Reports storage utilization statistics for the specified database.
- diagLogging
Removed in MongoDB 3.6. To capture, replay, and profile commands sent to your MongoDB deployment, use mongoreplay.
- driverOIDTest
Internal command that converts an ObjectId to a string to support tests.
- explain
Returns information on the execution of various operations.
- features
Reports on features available in the current MongoDB instance.
- getCmdLineOpts
Returns a document with the run-time arguments to the MongoDB instance and their parsed options.
- getLog
Returns recent log messages.
- hostInfo
Returns data that reflects the underlying host system.
- isSelf
Internal command to support testing.
- listCommands
Lists all database commands provided by the current mongod instance.
- netstat
Internal command that reports on intra-deployment connectivity. Only available for mongos instances.
- ping
Internal command that tests intra-deployment connectivity.
- profile
Interface for the database profiler.
- serverStatus
Returns a collection metrics on instance-wide resource utilization and status.
- shardConnPoolStats
Reports statistics on a mongos’s connection pool for client operations against shards.
- top
Returns raw usage statistics for each database in the mongod instance.
- validate
Internal command that scans for a collection’s data and indexes for correctness.
- whatsmyuri
Internal command that returns information on the current client.