Mongodb：`com.mongodb.MongoSocketReadException：过早地到达流的末尾`与morphia

Question

我将一个简单的数据结构（下面引用的Transaction）插入到mongodb中：

{"amount":111,"debitAcc":"588188286231743e7d5c923d","type":"CHARGE"}

我得到了以下错误堆栈：

com.mongodb.MongoSocketReadException: Prematurely reached end of stream
        at com.mongodb.connection.SocketStream.read(SocketStream.java:88)
        at com.mongodb.connection.InternalStreamConnection.receiveResponseBuffers(InternalStreamConnection.java:494)
        at com.mongodb.connection.InternalStreamConnection.receiveMessage(InternalStreamConnection.java:224)
        at com.mongodb.connection.UsageTrackingInternalConnection.receiveMessage(UsageTrackingInternalConnection.java:96)
        at com.mongodb.connection.DefaultConnectionPool$PooledConnection.receiveMessage(DefaultConnectionPool.java:440)
        at com.mongodb.connection.WriteCommandProtocol.receiveMessage(WriteCommandProtocol.java:262)
        at com.mongodb.connection.WriteCommandProtocol.execute(WriteCommandProtocol.java:104)
        at com.mongodb.connection.InsertCommandProtocol.execute(InsertCommandProtocol.java:67)
        at com.mongodb.connection.InsertCommandProtocol.execute(InsertCommandProtocol.java:37)
        at com.mongodb.connection.DefaultServer$DefaultServerProtocolExecutor.execute(DefaultServer.java:168)
        at com.mongodb.connection.DefaultServerConnection.executeProtocol(DefaultServerConnection.java:289)
        at com.mongodb.connection.DefaultServerConnection.insertCommand(DefaultServerConnection.java:118)
        at com.mongodb.operation.InsertOperation.executeCommandProtocol(InsertOperation.java:76)
        at com.mongodb.operation.BaseWriteOperation$1.call(BaseWriteOperation.java:139)
        at com.mongodb.operation.BaseWriteOperation$1.call(BaseWriteOperation.java:133)
        at com.mongodb.operation.OperationHelper.withConnectionSource(OperationHelper.java:422)
        at com.mongodb.operation.OperationHelper.withConnection(OperationHelper.java:413)
        at com.mongodb.operation.BaseWriteOperation.execute(BaseWriteOperation.java:133)
        at com.mongodb.operation.BaseWriteOperation.execute(BaseWriteOperation.java:60)
        at com.mongodb.Mongo.execute(Mongo.java:845)
        at com.mongodb.Mongo$2.execute(Mongo.java:828)
        at com.mongodb.DBCollection.executeWriteOperation(DBCollection.java:342)
        at com.mongodb.DBCollection.insert(DBCollection.java:337)
        at com.mongodb.DBCollection.insert(DBCollection.java:328)
        at org.mongodb.morphia.DatastoreImpl.saveDocument(DatastoreImpl.java:1297)
        at org.mongodb.morphia.DatastoreImpl.tryVersionedUpdate(DatastoreImpl.java:1340)
        at org.mongodb.morphia.DatastoreImpl.save(DatastoreImpl.java:1286)
        at org.mongodb.morphia.DatastoreImpl.save(DatastoreImpl.java:775)
        at org.mongodb.morphia.DatastoreImpl.save(DatastoreImpl.java:758)

我的mongodb版本是3.4.2。

相互关系是我在本地开发环境中没有问题（mint linux 18.1）。但它只能在我的SIT环境中工作，这是一个ubuntu 16.04

有什么想法吗？

使用代码更新以插入文档

可以在以下位置找到transactionDao.save(...)实施位置：

https://github.com/actframework/act-morphia/blob/master/src/main/java/act/db/morphia/MorphiaDaoBase.java#L206

更新2

系统可以与其他写入一起使用（即使记录更大）

Answer 1

大多数情况下，这是由于长读/写的超时造成的。

尝试增加超时或完全删除它们：

    MongoClientOptions.Builder options_builder = new MongoClientOptions.Builder();
    options_builder.maxConnectionIdleTime(<some_long_time>);
    MongoClientOptions options = options_builder.build();
    MongoClient mongo_db = new MongoClient ("your.db.address", options);

Answer 2

我没有根本原因，但最后我通过将字段类型从BigDecimal更改为double来解决问题。

问题出现在我们的SIT环境和一个开发人员的Windows环境中，它有一个mongodb cluser设置。

Answer 3

最可能的原因是兼容性版本设置得太低。

尝试db.adminCommand（{setFeatureCompatibilityVersion：＆＃34; 3.4＆＃34;}）

https://docs.mongodb.com/manual/reference/command/setFeatureCompatibilityVersion/