mongo database

MongoDB master-slave backupEnvironment : CentOS 7, MongoDB x86_64MongoDB official website download page :https://www.mongodb.com/download-center#communityDownload finished, extract to the specified directory, I will now put it in the/opt directory (green version, do not install)In bin/This directory, is the relevant tool of MongoDB,Common Tool Description:Bsondump--Dumps files in Bson format to JSON-formatted dataMONGO--mongo Client (for connection

} Public StaticListgetuniquelist (string[] keywordstr, string[] catId) {ListNewArraylist(); if(keywordstr!=NULL keywordstr.length>=1){ for(inti = 0; i ) { if(! Stringutils.isempty (Keywordstr[i]) !Stringutils.isempty (Catid[i])) {String str=keywordstr[i]+ "," +Catid[i]; if(!list.contains (str)) {List.add (str); } } } } returnlist; } //Public static void Main (string[] args) {//string[] strs1={"1"

MongoDB steps: 1. Google search MongoDB find the official website to download: http://www.mongodb.org/ 2. Decompression: Tar zvxf mongodb-linux-i686-2.4.3.tgz generate a mongodb-linux-i686-2.4.3 folder 3. Enter the Mongodb-linux-i686-2.4.3/bin folder, which binaries can be executed. Eg:#./mongod This is to open the MongoDB database service. 4. Error:dbpath (/data/db/) does not exist is generally present. This error. How to do it. Suggest a/data/db

Mysql, sqlsever, oracle, redis, mongo, postgres and other database backup and recovery commands, sqlseverredis The following is a simple example of how to back up and restore each database. For more detailed parameters and configurations, refer to relevant information. I. mysql: Parameter description: $ User $ Password $ Targethost $ Port $

IMMEDIATE; RESTORE DATABASE $dbname from disk= ' $filename ' with replace,norecovery; RESTORE DATABASE $dbname from dist= ' $diff _filename ' with RECOVERY; ALTER DATABASE $dbname SET ONLINE " Third, Oracle: Oracle's backup and recovery primarily uses Rman, which is interesting to know more about the specific use of Rman Four, Redis: Description: The Redis dat

Tags: ... res cti Tle run target out render expNodejs How to use the MONGO databaseFirst, please refer to the following two links to configure and run Express and MongoDB. 1. Use Express to generate a blank website http://cnodejs.org/topic/501f43eef767cc9a51c7b90e 2.mongo database installation and command line connection http://cnodejs.org/ topic/50285b34f767cc9a

1. Download mongodb-win32-x86_64-2.2.1 to any drive letter or any directory 2. Create a new batch file to install the MongoDB server to the service: D :\ " Program Files " \ Mongodb-win32-x86_64- 2.2 . 1 \ Bin \ mongod-dbpath " D: \ mongo_db_server " -- Logpath " D: \ mongo_db_server \ log \ log.txt " -- Port 27017 -- Install Note: during batch processingUse "" For program files because there are spaces in the path. 1.D: \ mongo_db_serverIs automatically generated, and

1, download mongodb-win32-x86_64-2.2.1 to any one of the letter or any directory 2. Create a new batch file, which is mainly used to install MongoDB server into service: The code is as follows Copy Code d:/"program Files"/mongodb-win32-x86_64-2.2.1/bin/mongod-dbpath "D:/mongo_db_server"--logpath "D:/mongo_db_server /log/log.txt "--port 27017--install Note that the program files in the batch are to be used "" because there are spaces in the path. 1, the fo

Label:monmatchledcheck cause Fault alsconfig data type Data type MongoDB 3.x data capacity GB Failure type Server power loss causes WIREDTIGER.WT file corruption Start error detected data files in E:\DTLFolder\MongoDB\ Data created by the ' Wiredtiger ' storage engine, so setting the active storage engine to ' Wiredtiger '. 2018-05-08t16:10:09.755+0800 I STORAGE [initandlisten] Wiredtiger_open config:create,cache_size=18g,session_ Max=20000,eviction= (threads_max=4), config_base=false,stati

Tags: des http java uses OS IO data forConceptA Mongod service can have multiple databases, each database can have multiple tables, where the table is called collection, each collection can hold multiple documents (document), each document is Bson (binary JSON) in the form of a hard disk, so you can store more complex data types. It is stored in a single document, and you can add or delete fields to one or a batch of documents without affecting other

About Windows platform Building MONGO database replication Set this topic, I have written two blog posts in frontFirst article: How to build a MONGO database replica set on the Windows platformSecond: Data synchronization and fault adaptive testingIn this article, let's focus on the replication set, and analyze how it

1. Start mongodbusrlocalmongodbbinmongod -- dbpathvarmongodbdata -- logpathvarmongodblogslog. log-fork2. Verify start mongodbusrlocalmongodbbinmongod -- dbpathvarmongodbdata -- logpathvarmongodblogslog. log-auth- 1. start mongodb/usr/local/mongodb/bin/mongod -- dbpath =/var/mongodb/data -- logpath/var/mongodb/logs/log without verification. log-fork 2. verify that mongodb/usr/local/mongodb/bin/mongod -- dbpath =/var/mongodb/data -- logpath/var/mongodb/logs/log is started. log-auth- 1. Start mong

SQL Server has tools for database optimization. Mongo database profiler not only has but also has more powerful functions. MongoDB comes with a profiler that allows you to easily record all operations that take a long time to facilitate optimization. There are two ways to control the profiling switch and level. The first is to directly set it in the startup par

MONGO Database How do I test whether the MONGO database is connected? I just got in touch with MongoDB today. Not very familiar. Are there any learning materials in this area? Thank you! ------Solution-------------------- PHP Code Selectdb (' fish_test '); If no databas