Exception in monitor thread while connecting to server

Working with Data Drivers
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1 

2024-07-28T11:59:58.594+05:30  INFO 44566 --- [ngodb.net:27017] org.mongodb.driver.cluster               : Exception in monitor thread while connecting to server ac-7x8ck7t-shard-00-01.uzm11lx.mongodb.net:27017

com.mongodb.MongoSocketWriteException: Exception sending message
        at com.mongodb.internal.connection.InternalStreamConnection.translateWriteException(InternalStreamConnection.java:691) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.InternalStreamConnection.sendMessage(InternalStreamConnection.java:564) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.InternalStreamConnection.sendCommandMessage(InternalStreamConnection.java:396) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.InternalStreamConnection.sendAndReceive(InternalStreamConnection.java:346) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.CommandHelper.sendAndReceive(CommandHelper.java:92) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.CommandHelper.executeCommand(CommandHelper.java:48) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.InternalStreamConnectionInitializer.initializeConnectionDescription(InternalStreamConnectionInitializer.java:130) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.InternalStreamConnectionInitializer.startHandshake(InternalStreamConnectionInitializer.java:78) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.InternalStreamConnection.open(InternalStreamConnection.java:203) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.lookupServerDescription(DefaultServerMonitor.java:193) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:153) ~[mongodb-driver-core-5.0.1.jar:na]
        at java.base/java.lang.Thread.run(Thread.java:840) ~[na:na]
Caused by: javax.net.ssl.SSLException: Received fatal alert: internal_error
        at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:133) ~[na:na]
        at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:117) ~[na:na]
        at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:365) ~[na:na]
        at java.base/sun.security.ssl.Alert$AlertConsumer.consume(Alert.java:293) ~[na:na]
        at java.base/sun.security.ssl.TransportContext.dispatch(TransportContext.java:204) ~[na:na]
        at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:172) ~[na:na]
        at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1510) ~[na:na]
        at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1425) ~[na:na]
        at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:455) ~[na:na]
        at java.base/sun.security.ssl.SSLSocketImpl.ensureNegotiated(SSLSocketImpl.java:925) ~[na:na]
        at java.base/sun.security.ssl.SSLSocketImpl$AppOutputStream.write(SSLSocketImpl.java:1295) ~[na:na]
        at com.mongodb.internal.connection.SocketStream.write(SocketStream.java:165) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.InternalStreamConnection.sendMessage(InternalStreamConnection.java:561) ~[mongodb-driver-core-5.0.1.jar:na]
        ... 10 common frames omitted

2024-07-28T11:59:58.789+05:30  INFO 44566 --- [ngodb.net:27017] org.mongodb.driver.cluster               : Exception in monitor thread while connecting to server ac-7x8ck7t-shard-00-00.uzm11lx.mongodb.net:27017

com.mongodb.MongoSocketWriteException: Exception sending message
        at com.mongodb.internal.connection.InternalStreamConnection.translateWriteException(InternalStreamConnection.java:691) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.InternalStreamConnection.sendMessage(InternalStreamConnection.java:564) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.InternalStreamConnection.sendCommandMessage(InternalStreamConnection.java:396) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.InternalStreamConnection.sendAndReceive(InternalStreamConnection.java:346) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.CommandHelper.sendAndReceive(CommandHelper.java:92) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.CommandHelper.executeCommand(CommandHelper.java:48) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.InternalStreamConnectionInitializer.initializeConnectionDescription(InternalStreamConnectionInitializer.java:130) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.InternalStreamConnectionInitializer.startHandshake(InternalStreamConnectionInitializer.java:78) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.InternalStreamConnection.open(InternalStreamConnection.java:203) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.lookupServerDescription(DefaultServerMonitor.java:193) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:153) ~[mongodb-driver-core-5.0.1.jar:na]
        at java.base/java.lang.Thread.run(Thread.java:840) ~[na:na]
Caused by: javax.net.ssl.SSLException: Received fatal alert: internal_error
        at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:133) ~[na:na]
        at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:117) ~[na:na]
        at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:365) ~[na:na]
        at java.base/sun.security.ssl.Alert$AlertConsumer.consume(Alert.java:293) ~[na:na]
        at java.base/sun.security.ssl.TransportContext.dispatch(TransportContext.java:204) ~[na:na]
        at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:172) ~[na:na]
        at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1510) ~[na:na]
        at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1425) ~[na:na]
        at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:455) ~[na:na]
        at java.base/sun.security.ssl.SSLSocketImpl.ensureNegotiated(SSLSocketImpl.java:925) ~[na:na]
        at java.base/sun.security.ssl.SSLSocketImpl$AppOutputStream.write(SSLSocketImpl.java:1295) ~[na:na]
        at com.mongodb.internal.connection.SocketStream.write(SocketStream.java:165) ~[mongodb-driver-core-5.0.1.jar:na]
        at com.mongodb.internal.connection.InternalStreamConnection.sendMessage(InternalStreamConnection.java:561) ~[mongodb-driver-core-5.0.1.jar:na]
        ... 10 common frames omitted
2

Hi @Naveen_Official and welcome to the community forum!!

Looking at the errors shared above, it does not very clearly indicate the issues, but it could be an issue with the versions being used. Could you help with some information on the issue being observed ?

  1. What are the different versions that you are using for Java, Spring, MongoDB?
  2. Can you share the code snippet where you are trying to make the connection ?
  3. Are you following any documentation to make the connection? If not, you follow the blog post REST APIs with Java, Spring Boot, and MongoDB | MongoDB and try to make the connection again.
  4. Finally, can you confirm if this same connection string was working and it stopped after an update?

Regards
Aasawari