seagate replica

Eight Copy Introduction to 8.1 image replicas RMAN can create database data files, archive redo logs, or exact copies of control files. The Rman copy is a copy of these files, and the difference is only in the name and location changes. We don't You need to consider backup slices or other issues. The image copy can only be generated on disk and cannot generate an incremental replica. The build image copy must load or open the database. Build histor

Tags: MongoDBMongoDB Replica Set Earlier versions used Master-slave, a master one from and MySQL similar, but slave in this architecture is read-only, when the main library down, from the library can not automatically switch to primary The Master-slave mode has now been phased out, changed to a replica set, this mode has a master (primary), and multiple Slave (secondary), read-only. Support to set

Label:1. Assume that 1 database server is Active server (master server), 2 and 3 is the backup server, when 1 fails, then will be in 2 and 3 to elect one (according to the weight of the rules) as an active server, and when 1 is back to normal, it will be the identity of the backup server to appear;2. Set the value of the database server (in the configuration file to be set to a closed loop):For example, set up a replica cluster of three databases:Data

Tags: test mon nec Switch ONS host BSP GES dataMongoDB version: Environment: one virtual machine Three copies of Configsvr: Port is 27020,27021,27022 Two shards: Shard1:-> three replicas with Port 27010,27011,27012 Shard2:-> three replicas with Port 27013,27014,27015 One route: MONGOs-Port 27023 Pre-conditions: Create a directory of data store files mkdir /usr/local/mongodb/data mkdir /usr/local/mongodb/log /usr/ local/mongodb/data mkdirmkdirmkdirmkdirmkdir S101 mkdirmkdirmkdirmkdir s202 Gener

Copyright notice: This article by the Comte rain original article, reproduced please indicate the source:Article original link: https://www.qcloud.com/community/article/136Source: Tengyun https://www.qcloud.com/communityMongoDB single-instance mode, one Mongod process is an instance, one instance contains several db, and each DB contains several tables.MongoDB uses a special table to local.oplog.rs store Oplog, which is characterized by a fixed size, full of deleted oldest records inserted into

%/*}/arbiterDaemon--user mongod "Mongod--config arbiter.conf"[Email protected] ~]#Note: The owner of the arbiter.conf file, the genus Group is MongodSecond, start the service, configure the replica setService Mongod Start/data/mongodb/startaribiter.shStart a second nodethen: in Primary on,Rs.initiate ()Rs.add ("Mongodb2.example.net")Rs.add ("Mongodb3.example.net")Rs.addarb ("mongodb1.example.net: 27029")If you want to reduce Primary The priority level

In our previous blog, we focused on how to build a MongoDB replica set under the Windows platform. Detailed Blog Address:As space is limited in the previous article did not verify the results, in this blog we mainly test:Through the Rs.status () command we can query to each node to run normally.First, the data synchronization testInsert on port 28011, 28012:View reason: Find the answer onlineFirst of all this is normal, because secondary is not allowe

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