MongoDB error Tcmalloc:large alloc out of memory, printing stack and exiting solution _mongodb

Recently MongoDB will often suddenly hang up, check log found the following error: Copy Code code as follows: Tcmalloc:large alloc 2061584302080 bytes = = (Nil) @ Tue Nov 17:45:04.539 out of memory, printing stack and exiting: 0xdddd81

mtools-The MongoDB artifact that you might not use.

Objectivehas been in contact with MongoDB for some time, from the beginning of not understanding, to now has slowly adapted to this NoSQL field leader, or experienced a lot of twists and turns.When it comes to database sizing, many people like to

MongoDB Master-Slave architecture and replica set schema

Master-Slave architecture :MongoDB supports the traditional Master-slave architecture. The master node is responsible for reading and writing data, and slave does not have write permissions. There is no automatic failover feature, you need to

Windows installation MongoDB progress bar stuck, window installed MONGO system error 2, system error 5 workaround

Windows installation MongoDBFirst go to the official website (https://www.mongodb.com/download-center?jmp=nav#community) and download a MongoDB Windows client.I downloaded two versions of the 3.4.11 version, one is 3.6.2.Originally used MongoDB with

O ' Reilly: Learn more about MongoDB PDF

: Network Disk DownloadContent Introduction· · · · · ·In-depth learning MongoDB is divided into two parts, corresponding to the scaling MongoDB 50Tips and Tricks for Mongo DB developers Two, which is published by O ' Reilly Company. "In-depth

Mongodb-mms Installation

MMS is MONGO cluster monitoring software.MMS eats memory very much, when the virtual machine tests, 3G memory starts successfully, then fails on reboot, it is recommended not less than 4G memory.

Spring data MongoDB @CreatedBy @lastmodifiedby@createdby@lastmodifiedby springsecurityauditoraware, log only user names

To use @[email Protected]@[email protected] in spring data mongodb four annotationsMust implement SpringsecurityauditorawareOfficial codeclass Springsecurityauditoraware implements auditoraware { public User Getcurrentauditor () { =

MongoDB and MySQL Insert, query performance test

A brief introduction to 1.1 MongoDBIn today's database market, MySQL is undoubtedly a place to occupy. As an open-source relational database , MySQL is widely used in the background of major web sites, and assumes the important role of information

MongoDB and MySQL insert performance test "Go"

A brief introduction to 1.1 MongoDBIn today's database market, MySQL is undoubtedly a place to occupy. As an open-source relational database , MySQL is widely used in the background of major web sites, and assumes the important role of information

How to install Rockmongo (GUI for MongoDB)

1. Download Rockmongo: Http://rockmongo.com/downloadsUnzip the downloaded compressed package rockmongo-1.1.5.zip to the Web publishing directory (I use Apache here, the Publish directory can refer to the DocumentRoot item in httpd.conf)2. Download

Install MongoDB (made into a Windows service) and load the C # driver

A MongoDB Introduction:by querying some information on the Internet to introduce the advantages of MongoDB :MongoDB is a document-oriented database, currently developed and maintained by 10gen, it is rich in functionality, complete, can completely

Start MongoDB script with bat batch processing

At the beginning of the article, let's review how to open the MongoDB database with the cmd Command window, with the following command:Open the MongoDB databaseCD D:\Program Files\mongodb\binmongod " D:\Program Files\mongodb\data " See the above

MongoDB installation for Windows7 64-bit

Configuring the MONGO service sideInstalling MongoDB1. Download Http://www.mongodb.org/downloads According to the operating system.2. Create a new MongoDB folder on the D drive (this folder is the custom database installation directory D:\MongoDB)

Basic tutorial for SQL coding Optimization for IBM DB2 database: classic edition!

The following articles mainly introduce the basic tutorial of SQL coding optimization for the IBM DB2 database. The importance of such a specific query is that the more important the query is, you may need to optimize indexes by creating indexes. If

DB2 Performance Tuning improve SQL query performance in SAP applications (1)

The following articles mainly show you how to improve SQL query performance in SAP applications due to DB2 performance optimization, if you are interested in improving SQL query performance in the SAP application of DB2 performance optimization, you

Basic db2 knowledge

Connect to the database:Connect to [database name] user [operation user name] using [Password] Create a buffer pool (8 K ): Create bufferpool ibmdefault8k immediate size 5000 PAGESIZE 8 K;Create a buffer pool (16 K) (OA_DIVERTASKRECORD ):Create

DB2 V9.7 Linux installation records

DB2 V9.7 Linux installation record DB2 installation in Linux (RedHat Enterprise Linux 5.4) _ graphical user interfaces can be used or manually installed. First, we will introduce the simplest installation method. 1. Download DB2 9.7 express C from

Introduction to IBM DB2 Connect (1)

The db2 tutorial is: IBM DB2 Connect introduction (1 ).In part 1 of this series, we initially talked about the different programming interfaces provided by DB2 Connect and the drivers that implement these interfaces. In the last few sections, we

How does db2 rename a table ?, How does db2 rename a table?

How does db2 rename a table ?, How does db2 rename a table?How does db2 rename a table? Set The current schema: db2 => set schema db2adminDB20000I The SQL command completed successfully. if the command contains schema, the following error occurs:

IBM and DB2 9 open a new era of hybrid database management systems

New troubles brought by new technologiesXMLExtensible Markup Language) technology is a self-describing data structure with great flexibility. It is recognized by all parties for its scalability, platform independence, and ease of exchange. With the

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