Remember the exception resolution in spring boot in MongoDB prematurely reached end of stream

Last Update:2018-01-22 Source: Internet

Author: User

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MongoDB is used in the Spring boot project, and when MongoDB is not manipulated for a while, the next time you manipulate MongoDB there will be an exception. Exceptions are as follows:

org.springframework.data.mongodb.UncategorizedMongoDbException: Prematurely reached end of stream; nested exception is com.mongodb.MongoSocketReadException: Prematurely reached end of stream
        at org.springframework.data.mongodb.core.MongoExceptionTranslator.translateExceptionIfPossible(MongoExceptionTranslator.java:107)
        at org.springframework.data.mongodb.core.MongoTemplate.potentiallyConvertRuntimeException(MongoTemplate.java:2146)
        at org.springframework.data.mongodb.core.MongoTemplate.executeFindOneInternal(MongoTemplate.java:1928)
        at org.springframework.data.mongodb.core.MongoTemplate.doFindOne(MongoTemplate.java:1736)
        at org.springframework.data.mongodb.core.MongoTemplate.findOne(MongoTemplate.java:606)
        at org.springframework.data.mongodb.core.MongoTemplate.findOne(MongoTemplate.java:601)
        at com.lwli.service.impl.SessionServiceImpl.findOneSessionByCustomerIdAndStatus(SessionServiceImpl.java:51) at java.lang.Thread.run(Thread.java:745)
Caused by: 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$PooledConnection.receiveMessage(DefaultConnectionPool.java:440)
        at com.mongodb.connection.QueryProtocol.execute(QueryProtocol.java:289)
        at com.mongodb.connection.QueryProtocol.execute(QueryProtocol.java:54)
        at com.mongodb.connection.DefaultServer$DefaultServerProtocolExecutor.execute(DefaultServer.java:168)
        at com.mongodb.connection.DefaultServerConnection.executeProtocol(DefaultServerConnection.java:289)
        at com.mongodb.connection.DefaultServerConnection.query(DefaultServerConnection.java:212)
        at com.mongodb.operation.FindOperation$1.call(FindOperation.java:525)
        at com.mongodb.operation.FindOperation$1.call(FindOperation.java:510)
        at com.mongodb.operation.OperationHelper.withConnectionSource(OperationHelper.java:435)
        at com.mongodb.operation.OperationHelper.withConnection(OperationHelper.java:408)
        at com.mongodb.operation.FindOperation.execute(FindOperation.java:510)
        at com.mongodb.operation.FindOperation.execute(FindOperation.java:81)
        at com.mongodb.Mongo.execute(Mongo.java:836)
        at com.mongodb.Mongo$2.execute(Mongo.java:823)
        at com.mongodb.DBCursor.initializeCursor(DBCursor.java:870)
        at com.mongodb.DBCursor.hasNext(DBCursor.java:142)
        at com.mongodb.DBCursor.one(DBCursor.java:679)
        at com.mongodb.DBCollection.findOne(DBCollection.java:833)
        at com.mongodb.DBCollection.findOne(DBCollection.java:796)
        at com.mongodb.DBCollection.findOne(DBCollection.java:743)
        at org.springframework.data.mongodb.core.MongoTemplate$FindOneCallback.doInCollection(MongoTemplate.java:2197)
        at org.springframework.data.mongodb.core.MongoTemplate$FindOneCallback.doInCollection(MongoTemplate.java:2181)
        at org.springframework.data.mongodb.core.MongoTemplate.executeFindOneInternal(MongoTemplate.java:1925)
        ... 12 more

Online search, the problem is a lot of reasons, the main reason may have a connection timeout, read and write timeout, according to other people's tips, set up

Socketkeepalive = true;

Sockettimeout = 30000;

However, there is no effect, and when the mongdb is visited again over a period of time, the exception occurs. When searching for Google, an article was found https://studio3t.com/whats-new/ How-to-prevent-your-connection-from-dropping-with-hosted-mongodb-instances/, mentioned above, when the connection is idle for a period of time, due to firewall or load balancing reasons, Causes the connection to be closed and the client does not know that an error occurs when the client continues to read and write with the closed connection.

The solution is to set the connection idle time, when more than this idle time the client actively shut down the connection, the next time the connection is re-established, this can effectively avoid the problem of connection failure.

Configure the Mongoclientoptions bean in spring boot. For example, set the maximum idle time to 6000ms.

@Configuration public class WechatMpConfiguration {
    @Bean public MongoClientOptions mongoOptions() {

return MongoClientOptions.builder().maxConnectionIdleTime(6000).build();

After the above settings, there is no more prematurely reached end of stream exception later.

Remember the exception resolution in spring boot in MongoDB prematurely reached end of stream

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