Question

我面临一个奇怪的问题，因为这个问题早先没有问题。

我使用最新的Spring Data MongoDB 1.5.2版本与Mongo Java Driver 2.12.3

我使用mongoDB ensureIndex命令通过Mongo Shell（运行MongoDB 2.4版本的MongoDB serevr）手动创建集合字段的索引。

我已经使用collection.getIndexes（）命令和system.indexes集合检查了我的集合，以便正确创建上述索引。

使用Spring Data MongoDB，我还在域对象的同一个字段上放置了@Indexed注释。

在查询查找操作期间，我在Spring Data MongoDB下面创建索引异常，用于在system.indexes集合中创建索引，并抱怨文档obj大小大于16MB。

如果，我删除域对象字段上的@Indexed注释并重新运行查询查询，那么应用程序端就没有错误。

我想了解原因：

1）Spring Data MongoDB尝试在查询查询操作期间使用@Indexed注释在system.indexes中创建索引。

2）为什么Spring Data MongoDB在使用@Indexed注释查找查询操作期间抱怨obj大小大于16 MB，而我可以在MongoDB shell上运行相同的查找查询而没有任何问题。

3）收集的上述文件是否已损坏？我是否必须重新导入新数据并进行相同的测试，因为过去一直没有问题，应用程序方面没有问题？

4）Spring Data MongoDB @Indexed注释的生命周期是什么或它是如何工作的？我们是否有详细的文件？

Domain Object

@Document(collection = "Users")
public class Users implements Serializable {

@Id
ObjectId id;

@Indexed
String appUserId

String firstName;

String lastName;

}

@Repository
public interface UsersRepository extends MongoRepository<Users, String>, UsersRepositoryCustom {

// default query methods
}

@Repository
public interface UsersRepositoryCustom {
    int findUserCount(String appUserId);
}

@Component
public class UsersRepositoryImpl implements UsersRepositoryCustom {

@Override
    public int findUserCount(String appUserId) {

        DBCursor dbCursor = null;
        int count = 0;
        Query query = new Query();
        query.addCriteria(
                Criteria.where("appUserId").is(appUserId));

        try {
            DBCollection dbCollection = mongoOperations.getCollection("Users");

            System.out.println("Start time : " + new Date().toString());
            dbCursor = dbCollection.find(query.getQueryObject());
            //while (dbCursor.hasNext()) {
              //do dome processing
            }
            count = dbCursor.count();
            System.out.println("End time : " + new Date().toString());
        } finally {
            dbCursor.close();
        }
        return count;


    }
}

Caused by: com.mongodb.WriteConcernException: { "serverUsed" : "XXXXXXXX:11111" , "err" : "BSONObj size: 0 (0x00000000) is invalid. Size must be between 0 and 16793600(16MB) First element: EOO" , "code" : 10334 , "n" : 0 , "connectionId" : 341 , "ok" : 1.0}
    at com.mongodb.CommandResult.getWriteException(CommandResult.java:90)
    at com.mongodb.CommandResult.getException(CommandResult.java:79)
    at com.mongodb.CommandResult.throwOnError(CommandResult.java:131)
    at com.mongodb.DBTCPConnector._checkWriteError(DBTCPConnector.java:135)
    at com.mongodb.DBTCPConnector.access$000(DBTCPConnector.java:39)
    at com.mongodb.DBTCPConnector$1.execute(DBTCPConnector.java:186)
    at com.mongodb.DBTCPConnector$1.execute(DBTCPConnector.java:181)
    at com.mongodb.DBTCPConnector.doOperation(DBTCPConnector.java:210)
    at com.mongodb.DBTCPConnector.say(DBTCPConnector.java:181)
    at com.mongodb.DBCollectionImpl.insertWithWriteProtocol(DBCollectionImpl.java:530)
    at com.mongodb.DBCollectionImpl.createIndex(DBCollectionImpl.java:369)
    at com.mongodb.DBCollection.createIndex(DBCollection.java:564)
    at org.springframework.data.mongodb.core.index.MongoPersistentEntityIndexCreator.createIndex(MongoPersistentEntityIndexCreator.java:135)
    at org.springframework.data.mongodb.core.index.MongoPersistentEntityIndexCreator.checkForAndCreateIndexes(MongoPersistentEntityIndexCreator.java:129)
    at org.springframework.data.mongodb.core.index.MongoPersistentEntityIndexCreator.checkForIndexes(MongoPersistentEntityIndexCreator.java:121)
    at org.springframework.data.mongodb.core.index.MongoPersistentEntityIndexCreator.onApplicationEvent(MongoPersistentEntityIndexCreator.java:105)
    at org.springframework.data.mongodb.core.index.MongoPersistentEntityIndexCreator.onApplicationEvent(MongoPersistentEntityIndexCreator.java:46)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:98)
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:333)
    at org.springframework.data.mapping.context.AbstractMappingContext.addPersistentEntity(AbstractMappingContext.java:307)
    at org.springframework.data.mapping.context.AbstractMappingContext.getPersistentEntity(AbstractMappingContext.java:181)
    at org.springframework.data.mapping.context.AbstractMappingContext.getPersistentEntity(AbstractMappingContext.java:141)
    at org.springframework.data.mapping.context.AbstractMappingContext.getPersistentEntity(AbstractMappingContext.java:67)
    at org.springframework.data.mongodb.repository.support.MongoRepositoryFactory.getEntityInformation(MongoRepositoryFactory.java:141)
    at org.springframework.data.mongodb.repository.support.MongoRepositoryFactory.getTargetRepository(MongoRepositoryFactory.java:83)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:158)
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:224)
    at org.springframework.data.repository.core.support.`enter code here`RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:210)
    at org.springframework.data.mongodb.repository.support.MongoRepositoryFactoryBean.afterPropertiesSet(MongoRepositoryFactoryBean.java:108)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1612)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549)

Spring Data MongoDB @Indexed注释 - 在查找查询操作期间创建索引错误（system.indexes）

0 个答案: