distributed-caching

来源： https://stackoverflow.com/questions/63976247/what-is-the-default-cache-strategy-when-using-redis-with-spring-or-spring-boot

来源： https://stackoverflow.com/questions/63976247/what-is-the-default-cache-strategy-when-using-redis-with-spring-or-spring-boot

来源： https://stackoverflow.com/questions/38056786/in-memory-cache-vs-centralized-cache-in-a-distributed-system

来源： https://stackoverflow.com/questions/38056786/in-memory-cache-vs-centralized-cache-in-a-distributed-system

问题 I want to use MongoDb as cacche store for the infinispan to persist the data evicted according to policy i am posting the snippet of the code that is causing exception along with the exception ConfigurationBuilder config = new ConfigurationBuilder(); MongoDBCacheStore strgBuilder = new MongoDBCacheStore(); ConfigurationBuilder b = new ConfigurationBuilder(); b.persistence() .addStore(MongoDBCacheStoreConfigurationBuilder.class) .host( "localhost" ) .port( 27017 ) .timeout( 1500 )

问题 I want to use MongoDb as cacche store for the infinispan to persist the data evicted according to policy i am posting the snippet of the code that is causing exception along with the exception ConfigurationBuilder config = new ConfigurationBuilder(); MongoDBCacheStore strgBuilder = new MongoDBCacheStore(); ConfigurationBuilder b = new ConfigurationBuilder(); b.persistence() .addStore(MongoDBCacheStoreConfigurationBuilder.class) .host( "localhost" ) .port( 27017 ) .timeout( 1500 )

问题 Background to question: I'm looking to implement a caching system for my website. Currently we're exploring memcache as a means of doing this. However, I am looking to see if something similar exists for SQL Server. I understand that MySQL has query cache which although is not distributed works as a sort of 'stop gap' measure. Is MySQL query cache equivalent to the buffer cache in SQL Server? So here are my questions: Is there a way to know is currently stored in the buffer cache? Follow up

问题 I am trying to write a map reduce job which is doing a sentiment analysis,i am using AFINN.txt as the dictionary. While runnning the map reduce job i am putting it into a file inside HDFS and trying to run but every time it is failing.i am using the below code to compare the words with AFINN public class Sentiment_Analysis extends Configured implements Tool { public static class Map extends Mapper<LongWritable, Text, Text, Text> { private URI[] files; private HashMap<String, String> AFINN_map

问题 We have typical ASP.NET application with a web app & a phone client app which talks to a WCF Service which uses a SQL Server database. Currently we have only once instance of WCF service hosted in IIS but may decide to deploy to a webfarm in future. We would like to cache relational data in a cache in WCF service side, that way both web app and phone app can benefit from it. WCF service is purely stateless and we need to keep it that way. With those constraints, what are available

问题 I have a custom object which I am converting to BinaryObject (using the BinaryObjectBuilder) before putting it into ignite cache. I calculated the deep size of my custom object and it is about 500 bytes. But when I calculate the size of BinaryObject, it is a whopping ~8 MB. Is this expected? 回答1: If you take a look at BinaryObjectImpl class, you will see, that some fields have @GridDirectTransient annotations, meaning that these fields are ignored during serialization. These are pretty big