cheap replica

First, configure the environment1. Two CentOS server with MongoDB installed; (Installation reference http://281816327.blog.51cto.com/907015/1598270)2. The IP of two servers is 192.168.1.112, 192.168.1.113 respectively;3. Two server firewalls let go of the default 27017 port of MongoDB;Second, configure the serverBoth servers do the following configurationCreate a/data/db folderMkdir/date mkdir/data/dbModifying a configuration fileVim/etc/mongodb.confSome of the important parameters are modified

Tags: uri mlog fork Cat 2.0 configuration command BPA MongoDB TorProblem Description:When setting up an environment for a client, initialization failed during initialization of a MongoDB replica set, reported "No host described in new configuration 1 for replica set mongotest maps to thi S node ". Specific error information as follows (to protect customer privacy, IP is processed):2018-06-20T11:51:45.695+08

Software version 64-bit: $ wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-rhel62-3.2.0.tgz Mongodb-linux-x86_64-rhel62-3.2.0.tgz Server 3: 192.168.1.20(master[PRIMARY]) 192.168.1.21(slave[Secondary]) 192.168.1.22(Arbitration [Arbiter])Reference:Http://www.cnblogs.com/visionwang/p/3290435.html http://www.csdn.net/article/2014-04-09/2819221- build-high-avialable-mongodb-cluster-part-1$ TAR-ZXVFmongodb-linux-x86_64-rhel62-3.2.0.tgz/opt$ mvmongodb-linux-x86_64-rhel62-3.2.0 MongoDB$ mkdir

Wiredtiger internal cache, by default, would use the larger of either: 50% of RAM minus 1 GB, or Up to MB. Avoid increasing the Wiredtiger internal cache size above its default value.With Wiredtiger, MongoDB utilizes both the Wiredtiger internal cache and the filesystem cache.Via the filesystem cache, MongoDB automatically uses all free memory that's not used by the Wiredtiger cache or by other Processes. Data in the filesystem cache is compressed.It can be seen that, in the c

:127.0.0.1#listentolocalinterfaceonly, commenttolistenonallinterfaces. #security: #keyFile =/opt/key/autokey #operationProfiling: #replication: Replication: oplogsizemb:1000 replsetname:rstest #sharding: ##enterprise-onlyoptions #auditLog: #snmp:Basically is the default configuration, dbdata location and log directory to see the specific situation, as appropriate, modify, bindip default is open, log off, otherwise MONGO only local accessStartMongod-f/etc/mongod.confYou can enter a Mongod to

Replica sets extension on master-slave replication, adding automatic failover and automatic repair of member nodes. The following is a technical introduction to how to build MongoDB replica set (personally feel that building MongoDB itself is not much dry, how important is disaster planning )1 Setting up a data storage directory for replication cluster nodesMkdir-p/OPT/MONGODATA/R1Mkdir-p/OPT/MONGODATA/R2Mk

1 Logical architecture1.1 Logical architecture Diagram1.2 Component DescriptionMONGOs (query routers): Query the route, responsible for the client connection, and assign the task to shards, and then collect the results. A cluster can have multiple query routers (replica sets) to offload client requests (load balancing).Second, config server: Configure the servers. The metadata for the cluster is saved (for example, on which shards the data is placed),

Tags: size technical parameter ble path which meaning configuration information redoIn each MongoDB (version 3.2.9) instance, there is a local database that stores information and local data for Replication processes. The local database is characterized by the fact that data and collections located in the local database are not copied to other MongoDB instance by the Replication process. If some collection and data on the instance are not scheduled to be copied to other MongoDB Instance, these c

Practices and precautions for upgrading and downgrading primary and secondary nodes in the mongodb replica setConsiderations and practices for upgrading and downgrading primary and secondary nodes in the mongodb replica set This article is based on the storage resizing record of mongodb3.0.7 to explain the Complete upgrade process; Solve the problems left over from aboveThe reason for the last downgrade

routing is used.III. Install and configure mongodb replica sets shard1. mongodb installationDownload Address: http://www.mongodb.org/downloadsAfter decompression, you can use2. Create directories on the three servers respectively. The code is as follows:Copy code # Mkdir/usr/local/mongodb26/configsvr/-p# Mkdir/usr/local/mongodb26/log/-p# Mkdir/usr/local/mongodb26/shard1/-p# Mkdir/usr/local/mongodb26/shard2/-p# Mkdir/usr/local/mongodb26/key/-p# Mk

Replica set multiple server master-slave, add, delete node, will certainly often encounter. Here is a detailed description of the 2 ways to add and delete nodes. One, using Rs.reconfig, to add, delete nodes 1, add nodes The code is as follows Copy Code repmore:primary> config = {_id: "Repmore", Members:[{_id:0,host: ' 127.0.0.1:27017 ', Priority:2},{_id:1,host: ' 127.0.0.1:27018 ', priority:1}]}; Add noderepmore:primary>

Identify the millet router official replica: Millet router's official pirated Sn (located at the bottom of the router's fuselage and packaging) the first 4 digits of 6752, and the normal product of the SN, can be used to identify your router is a millet router official replica. 　　Buy Millet Router official pirated URL: Millet Network is a millet router official repli