wq123123423432的博客

org.springframework.core.serializer.support.SerializationFailedException: Failed to deserialize payload. Is the byte array a result of corresponding serialization for DefaultDeserializer?; nested exception is org.springframework.core.NestedIOException: Fa.

1Index Boost 索引层面修改相关性2boosting 修改文档相关性3negative_boost 降低相关性4 function_score 自定义评分 （script_score，field_value_factor）5查询后二次打分rescore_query

**flink自定义source读取oracle，自定义sink写入mysql**在oracle和mysql数据库中创建相应的表pom文件<dependency> <groupId>org.apache.flink</groupId> <artifactId>flink-connector-kafka_2.11</artifactId> <version>

<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency><dependency> <groupId>org.redisson</groupId&g

分布式事务实现方式：1 两阶段 2 tcc补偿接口3 mq消息队列模式 

转载：http://blog.youkuaiyun.com/forezp/article/details/70037513