NEO400J Level Full-Text Index Construction Optimization

NEO400J Level Full-Text Index Construction Optimization 1. Scale of data volume (level 100 million) 2. Ways to Build Indexes 3. Exceptions Occurring in Index Building IV. Code optimization for full-text index 1,Java.lang.OutOfMemoryError 2. When accessing a database 3. Optimizing scheme 4. Optimize Code 5. Perform efficiency ...

Posted by lisa007 on Tue, 07 May 2019 12:10:06 +0200

Hand-in-hand teaching you how to use ORM database gracefully in Flutter project--Part II

A orm database Flutter plugin. I posted an article earlier. Hand-in-Hand Teaching You Elegant Use of ORM Database in Flutter Project Many people also put forward some valuable suggestions on consulting and using, saying that they do not want to write lua, which is not elegant enough, but also increases the cost of learning. On reflection, it is ...

Posted by hijack on Tue, 07 May 2019 05:00:05 +0200

Redis Learning Cluster

Redis Learning Cluster Preface In the first place, we learned the basic operation of Redis, the use of Jedis and the persistence scheme of Redis. Next, we learned the cluster management of Redis. copy When data is stored on a server, if the server hangs up, the data will be lost, so Redis provides the function of replicati ...

Posted by NTM on Tue, 07 May 2019 04:25:05 +0200

kubernetes event reflector

kubernetes event reflector kubernetes event reflector ListWatcher interface ListWatch Implementing ListWatcher Interface Informer using ListWatch Reflector Reflector type definition Functions to create Reflector objects Run() method ListAndWatch() method controller using Reflector Run() method processLoop() metho ...

Posted by Neumy on Mon, 06 May 2019 23:35:04 +0200

Redis 7000w+ keys && 16G memory 100% repair experience

cause We always use redis of Aliyun. We are not a high concurrent application. We mainly use redis as distributed locks and a small amount of caches. It hardly needs maintenance. Yesterday afternoon, we suddenly received an alarm email. On-line redis memory is used 100% and instantaneous nerve tension sensation is confirmed by console.This is a ...

Posted by jim_de_bo on Mon, 06 May 2019 15:00:04 +0200

PostgreSQL Heap Only Tuple - HOT (Reducing Index Writing IO Enlargement Introduced by UPDATE)

Label PostgreSQL , Heap Only Tuple , HOT background PostgreSQL's current default storage engine generates a new version in the heap when updating records. The old version needs to recycle all index POINT associated with this version before it needs to recycle the old version after VACUUM is used. The KEY of the index of PG is the value of th ...

Posted by Goins on Mon, 06 May 2019 12:45:03 +0200

PHP Full Stack Learning Notes 19

image.png The thinkphp framework is a free, open source, fast and simple object-oriented lightweight PHP development framework. Learn what is ThinkPHP overview, the directory structure of ThinkPHP projects, the controller of thinkphp, views, the process of building ThinkPHP projects, the configuration of thinkphp, the model o ...

Posted by betazoid on Mon, 06 May 2019 02:50:03 +0200