replica beats

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

Solution This is relatively simple. You can directly use semi sync to synchronize data to the TokuMX environment in real time without stopping the application. Migration solution without changing servers The application of this solution needs to be stopped for several seconds or several seconds affected.The connection string must be written into the ip address and port of the two nodes. 1. Remove the slave database and delete the data directory files (release space) of the machine where the

The secondary node in the replica set is not readable by default. In applications where there is less write-read, the replica sets is used to achieve read-write separation. By specifying Slaveok at the time of connection, or by specifying the secondary in the main library, the pressure of reading is shared by the primary and only the write operation is assumed.If you access MONGO through the shell, you want

For children's shoes developed by beginner Android mobile games, directly viewing the source code is the fastest way. Although there are many open-source games on the Internet, they are all games with little reference. Replica Island is a good game on the Android Market. It is excited that it is open-source and that children's shoes that want to improve game development are blessed. It should be noted that the source code is large and it may be easie

value "Shard1" is the configuration name, multiple use, need to unify. Members are the MONGO instances, and the arbiteronly:true in the third member indicates that the member is the quorum server. Rs.initiate (config) enables this configuration.5.2. View replica Set configuration: Rs.status ()5.3, change the replica set configuration:var config = rs.config ();Config.members[0].host = ' 120.27.194.222:27311

Tags: etc from step TPS file Digital Dash Ofo shouldHow to monitor MongoDB replica set using PrometheusThere are many ways to monitor MongoDB replica set: Using Zabbix template to view MongoDB data (Zabbix+grafana) MongoDB official own but now charge for Prometheus collects data through Mongodb-exporter and then uses Grafana to display data (Prometheus+grafana) etc... Install Prome

Tags: test jsb default TAC cannot fonts size art throughThrough the Rs.status () command we can query to each node to run normally.First, the data synchronization testInsert on port 28011, 28012:Because secondary is not allowed to read and write, in the application of more than read, the use of replica sets to achieve read and write separation. By specifying Slaveok at the time of connection, or by specifying the secondary in the main library, the pre

Tags: mongodb redundancy testTesting process:1, three machines are alive in the case, the display status is as follows:Description: The third machine 10.253.4.191 displayed as primary. The remaining 2 display states are secondary.2, testing the current three survival time data, the set name is dictionary. Three data shows as follows:Description: The last piece of data shows test11.3. Deactivate the server process for the primary collection. View the collection status in any of the remaining 2 Ta

The installation of Mongod in RS cluster is the same as a single machine, but the configuration file is slightly different,Standalone installation path Linux under MongoDB 3.2.5 installationThe following is the RS cluster configuration file:Systemlog:Destination:filePath:/home/mongodb/log1/mongod.log # #log的路径Logappend:trueStorageJournalEnabled:trueDbPath:/home/mongodb/data # #数据的路径Directoryperdb:trueEngine:wiredtigerWiredtiger:Engineconfig:Cachesizegb:6 # #这个值根据自己的机器的内存进行修改Directoryforindexes:t

Label:1:oplog IntroductionOplog is a fixed collection under the local library, and secondary is copied by looking at the primary Oplog collection. Each node has a oplog that records the information that is copied from the primary node so that each member can be used as a synchronization source to other nodes.2: The process of replica set data synchronizationDetailed procedures for data synchronization in a replica