mongo cam

--maxconns--fork--logappend Start a third node:/usr/local/mongodb/bin/mongod--port 28011--oplogsize--dbpath=/sdb1/liujijun/data/data/r1/--logpath=/ Sdb1/liujijun/data/log/r1.log--replset rs1/127.0.0.1:28010,127.0.0.1:28012--maxconns--fork--logappend 3: Chain succession to select a node #/usr/local/mongodb/bin/mongo--port 28010 > config={_id: ' rs1 ', Members: [{_id:0, Host: ' localhost:28010 '},{_id:1, Host: ' localhost:28011 '},{_id:2, host : ' local

Use userDbShow DBSDb.dropdatabase ()Db. Collection_name.insert (document)Exp:Db.user.insert ({name: "user1", Password: "123456"})Hint: Writeresult ({"ninserted": 1}) indicates successful insertionDb.user.find ()Hint {"_id": ObjectId ("56946FBA3A18F4867AECBCD1"), "name": "user1", "Password": "123456 "}> test={name: "user2", Passsword: "123456"}{"Name": "User2", "Passsword": "123456"}> Db.user.insert (Test)Writeresult ({"ninserted": 1})> Db.user.find (){"_id": ObjectId ("56946FBA3A18F4867AECBCD1")

Tags: log logs database operation record Ffline false data new Db.getcollection ('Product').Update({Status: "Offline"},{$Set: {status: "Online"}},false,true) update, change all status offline to online, note quotes db.collection.Update(criteria, objnew, Upsert, Multi) The description of the four parameters is as follows: The criteria:update query condition, similar to the Objnew:update object within the where in the SQL update query and some updated Operator (such as $, $inc ... ), and so on, c

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 pressure of reading is shared by the primary and

watermark/2/text/ahr0cdovl2jsb2cuy3nkbi5uzxqvdgfuz2xpdxfpbmc=/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/ Dissolve/70/gravity/center ">watermark/2/text/ahr0cdovl2jsb2cuy3nkbi5uzxqvdgfuz2xpdxfpbmc=/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/ Dissolve/70/gravity/center ">watermark/2/text/ahr0cdovl2jsb2cuy3nkbi5uzxqvdgfuz2xpdxfpbmc=/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/ Dissolve/70/gravity/center ">MONGO database--Non-relational database

Plan to make a back word Web application, very not successfully found the resources, to get a. bak file, import to SQL Server is simple, now I want to take the data to Mongolab, encountered some pits, specially recorded (old, can't remember AH)Mongolab Support Binary,json,csvSo I'm exporting the data as a. csv1. Database-task-export data2. Select SQL Server Native Client3. Next select a flat file destination4 Next Preview5. Implementation results6. If you directly execute the pour commandReturnM

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 allowed to read and write, in the application of wr

Mongo client Common commands 1. database related commands 1showdbs list all databases 2usememo Use Database memo. Even if the database does not exist, it can be executed, but the database will not be created immediately. The database will be created only when insert and other operations are executed. www.2cto. com3showcollections Mongo client Common commands 1. database related commands 1 show dbs // list a

Here are the steps for me to walk a novice PHP for the first time to install the MONGO module:1. First select the appropriate version of the MongoDB expansion pack download from the Internet;2. Unzip the expansion pack and enter the unzip directory;TAR-ZXF mongo-1.4.1.tgzCD mongo-1.4.13. Execute phpize in the mongo-1.3

Tags: User format limit query handle for REM SEQ statThe Db.collection.find () method returns a cursor. To access the documents, you need to iterate the cursor. However, in the MONGO Shell, if the returned cursor was not assigned to a variable using the varkeyword, Then the cursor was automatically iterated up-to-the-print up-to-the-first documents in the results. The following examples describe ways to manually iterate the cursor to access the docume

#!/bin/bashTime= "$ (date +"%y.%m.%d ")"Id= ' echo ' show dbs; ' | /usr/local/mongod3.2/bin/mongo 10.124.156.251:27018--shell|grep ' a[0-9]\{13\} ' |awk-f ' ' {print '} 'For I in $idDo/usr/local/mongod3.2/bin/mongodump--host= "10.124.156.251"--port=27018-d $i-o/home/mongodb.bak/mongom1/tmp/$ I.dump >/dev/nullDoneCd/home/mongodb.bak/mongom1Tar zcf $time. mongodbM1_27018.dump.tar.gz tmp/2>/tmp/mongo.error.log mv $time. mongodbm1_27018. Dump.tar.gz tar

I want to insert some data into Mongo DB using Java (on Ubuntu-Eclipse), but failed to connect to DB Server (on Windows XP Virtual manchine). The error is below: Java. Io. ioexception: couldn't connect to [/192.168.1.72: 27017] BC: java.net. connectexception: Connection timed out First, I can connect in WINXP using Mongo 192.168.1.72: 27017 Sencondly, I try connect in Ubuntu using

Some time ago to learn some of the knowledge of MongoDB, think of hands-on practice, so with homebrew installed a bit of MongoDB: $ Brew Update $ Brew Install MongoDB The use of the command before the installation of homebrew, midway may have interrupted the situation occurred, try a few more times just fine. While I was cheerfully ready to practice, the MONGO command prompted "Connect failed". Tidy up a bit of thought, should be the database

first, the installation procedure, 1. Download the latest MONGO DB database: http://www.mongodb.org/downloads?_ga=1.44426535.2020731121.1421844747\ The download is a zip. After extracting it, place it on the F drive, or another disk, and create the following folder, Config,data,log Config directory content: Create mongodb.conf file, content Data directory, then create a directory db Log directory, create a file Primary.log 2, add the F:\mongodb\bin

Tags: window sync doc png pip GES build BSP Connect1. The MongoDB replica set environment is completed 2. Start the installation of Mongo-connector Pip install Mongo-connector; based on the PIP command, the Python environment is default for Linux and window systems; 3. Installation Pip Install Elastic-doc-manager 4. Input command Mongo-connector-m 192.168.100.10

Official website article, compare SQL and MongoDBhttp://docs.mongodb.org/manual/reference/sql-comparison/ DB--Displays the currently used library Show DBS--Display all libraries Use DB Show Collections--Show all tables in the current database Db.testData.find ()--After selecting the database to manipulate, the DB represents the current database object, TestData represents the data table, and in MONGO table is called collection

Mongo batch update operations use the mongodb update method to update multiple records www.2cto. comJava code db. logPreInfo. update ({uniqueKey :{$ in: [average, minimum, 1353314962526-855 Mongo batch update operations use mongodb's update method to update multiple records www.2cto.com Java code db. logPreInfo. update ({uniqueKey :{$ in: [average, minimum, 1353314962526-855

Some records recorded by date in development require statistics in various dimensions, such as day, month, year, and hour ,.. For Grouping statistics, some fields need to be de-duplicated. In the previous [Mongo] grouping statistics by time (group time formatting), group is used to achieve day-by-day statistics, however, the newDate () method may be a bit difficult. Today I read about aggreg. Some records recorded by date in development require statis

Encapsulate a NLog + NLog. Mongo-based logging tool LogUtil and nloglogutil Encapsulate an object based on NLog + NLog. the Mongo Logging Tool class is LogUtil. The code is relatively simple. It mainly integrates the logging target configuration and FileTarget configuration into the class, and uses the cache dependency to determine whether to re-create the Logger class, the complete code is as follows: Usin

$ Con = new Mongo ();$ Db = $ con-> selectDB ("demo")-> selectCollection ("admin ");Var_dump ($ _ GET ['passwd']);$ Ds = $ db-> find (array ("username" = >$ _ GET ['username'], "password" => $ _ GET ['passwd']);Foreach ($ ds as $ k => $ v ){Var_dump ($ v );}?>The http://www.bkjia.com/mongo/go-1.php? Username = heige passwd [$ regex] = ^ 1The http://www.bkjia.com/mongo