mongodb insert performance tuning

The purpose of this article is to let you know how to understand the health of the mongdb you are running. Mongostat detailed Mongostat is a mongdb state detection tool that is used at the command line. It takes a fixed time to get the current running state of the MongoDB and outputs it. If you find that the database suddenly slows down or has other problems, your first-hand actions consider using Mongostat to view the status of the MONGO. Its ou

SummaryThe previous article introduced the MapReduce aggregation operation. This article will continue to learn, DB has, collection and document also have, basically enough, but as the project on-line, found more and more business data, query efficiency is more and more slow, then need to analyze slow query records. How do I turn on slow query logging? That's what this article is about.Related articlesGetting started with [MongoDB][

In MongoDB, you can use the Db.collection.explain ("executionstats") statement to analyze query performance. Create the table inventory in MongoDB and insert the test data, the initial data in addition to the ID field is not indexed. {"_id": 1, "item": "F1", type: "Food", quantity:500} {"_id": 2, "item": "F2", type:

Dotnet core uses MongoDB for high-performance Nosql database operations. mongodbnosql I haven't written a Blog for a long time. I watched the open-source Java Community drool every day, and I was so confused that I finally waited for the official release of dotnet core in March, Looking at the dotnet community, it is also a thriving phenomenon. I don't want to bind Windows. I believe that the spring of dotn

Although many open-source tools use plug-ins or other methods to monitor the internal performance provided by these open-source components (the so-called internal performance is the data obtained by the STAT command class provided by these open-source components ), however, both deployment and expansion are troublesome. In fact, it takes 1-2 days to implement such a tool, and it is also very convenient to s

; otherwise, the machine memory is too small, resulting in frequent swap writes. In this case, you need to upgrade the memory or expand Locked % The percentage of lock time. Try to keep it below 50%. Idx Miss % index Miss percentage. If the index is too high, check whether the index is missing. Q t | r | w when MongoDB receives too many commands and the database is locked and cannot be executed, it adds the commands to the queue. This column

indexes in test table Db.test.fropIndexes (); Delete the name index from the test table Db.test.dropIndex ({name:1}); To parse an SQL statement using the index condition command: Db.test.find (). explain (); Performance optimization: Explain execution plan MongoDB provides a explain command to learn how a query request is handled by the system. The explain command provides a good view of how the system u

1. Test ToolsThis test chooses YCSB (Yahoo! Cloud System Benchmark) as the test Client tool. YCSB is a NoSQL test tool for Yahoo Open source, used to test the performance of a variety of NoSQL, project address: Https://github.com/brianfrankcooper/YCSB. The project's MongoDB directory has detailed installation and testing methods.YCSB supports common NoSQL database reads and writes, such as inserting, modify

Recently busy to transfer a project from MySQL to MongoDB, in the process of importing old data, encountered some twists and turns, made a lot of mistakes, but also learned a lot of knowledge, so recorded. The company specially equipped with several high-performance server for this project, exclusively dual quad core Hyper-threading CPU, plus 32G of memory, operation and maintenance personnel after the in

I. PrincipleThe principle of Zabbix monitoring MongoDB is through echo "Db.serverstatus ()" | MONGO Admin to see the status of MongoDBTwo Server Configuration1) Add global variables for MONGO# vim/etc/profile.d/mongo.shExport Path=/usr/local/mongodb/bin: $PATH# . /etc/profile.d/mongo.sh2) After execution you can see some status information of MongoDB# echo "Db.se

I. PrincipleThe principle of Zabbix monitoring MongoDB is through echo "Db.serverstatus ()" | MONGO Admin to see the status of MongoDBTwo Server Configuration1) Add global variables for MONGO# vim/etc/profile.d/mongo.shExport Path=/usr/local/mongodb/bin: $PATH# . /etc/profile.d/mongo.sh2) After execution you can see some status information of MongoDB# echo "Db.se

, you can directly add the index input: {"name": 1, "Age":-1. Do not drop the table after creating an index. 2. OptimizationCodeImproper use of the method will significantly affect mongdb performance. Here I will list my usage experience: A. simply update the data using template. updatefirst () or template. updatemulti () instead of template. findandmodify (); B. Simply add a data operation and use 'template.

Back to CatalogBulk INSERT in the EF era, the uncle has encapsulated itself, the principle is to reduce the number of SQL connections and the number of instructions sent to SQL to 1 times, or 1000 data 1 times, and for the statement generated by EF, this is undoubtedly performance-efficient, because the EF side when processing, each statement will be sent to SQL once, Of course, even if it is in a SQL conne

MongoDB has been the most popular NoSQL, and according to Db-engines ranking the latest ranking, now MongoDB has defeated PostgreSQL leaped to the fourth place in the database ranking, after Oracle, MySQL and Microsoft SQ L Server, this article summarizes how to MongoDB performance

31075.847 Storage size (GB) Database type Mysql Mongodb Tokumx Couchbase 10 million 19 4.2 8.5 11.2 Conclusion:1. Insert ops for all NoSQL databases read stronger than MySQL, where Couchbase is the strongest, then MongoDB and Tokumx2.

commands are sent to MongoDB for execution, from which it can be analyzed: EXECUTE as root: $./mongosniff--source NET Lo It then monitors all packet requests to local mongodb with localhost listening on the default 27017 port. 2.Mongostat This tool provides a quick view of statistics field descriptions for a set of running MongoDB instances:

Tags: command configuration file version Server insertI. PrincipleThe principle of Zabbix monitoring MongoDB is through echo "Db.serverstatus ()" | MONGO Admin to see the status of MongoDBTwo Server Configuration1) Add global variables for MONGO# vim/etc/profile.d/mongo.shExport Path=/usr/local/mongodb/bin: $PATH# . /etc/profile.d/mongo.sh2) After execution you can see some status information of

: Using Mongodb.bson;Using Mongodb.driver; To perform data operations, first instantiate a mongoclient var client = new Mongoclient ("mongodb://127.0.0.1:27017"); Then create DATABASE and collection var database = client. Getdatabase ("foo");var collection = database. Getcollection Then we can try to insert a piece of data, the code is as follows var doc

%read 100%read Comparison of wiredtiger_syncperiodsecs_60 with 1 Sharding Cluster Performance Pressure measurement Description Scenario 1-4 1000W data per load, data size approx. 13G Scenario 5 load 5000W data, data size approx. 75G Test method YCSB Pressure Measurement Test Result Scenario 1: Single node _100%insert (load data) Scenario 2:

method One: MongostatThis tool provides a quick view of statistics for a set of running MongoDB instances, using the following:[[email protected] bin]#./% idx Miss% QR|QW ar| AW conntime *0 *0 *0 *0 ... 0 0 0|0 1|0 4 01:19:15*0 *0 *0 *0 ... 0 0 0|0 1|0 4 01:19:16*0 *0 *0 *0 ... 0 0 0|0 1|0 4 01:19:17It refreshes the status value every second, providing good readability, which allows you to observe the performance