1. Describe your incident:
Hi, today i upgraded from 7.0.2 to 7.0.3 and started noticing this error message:
[pod/graylog-0/graylog] 2026-02-22 13:48:43,574 INFO : org.mongodb.driver.cluster - Exception in monitor thread while connecting to server 127.0.0.1:27017
[pod/graylog-0/graylog] com.mongodb.MongoSocketOpenException: Exception opening socket
[pod/graylog-0/graylog] at com.mongodb.internal.connection.SocketStream.lambda$open$0(SocketStream.java:85)
[pod/graylog-0/graylog] at java.base/java.util.Optional.orElseThrow(Unknown Source)
[pod/graylog-0/graylog] at com.mongodb.internal.connection.SocketStream.open(SocketStream.java:85)
[pod/graylog-0/graylog] at com.mongodb.internal.connection.InternalStreamConnection.open(InternalStreamConnection.java:233)
[pod/graylog-0/graylog] at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitor.setupNewConnectionAndGetInitialDescription(DefaultServerMonitor.java:282)
[pod/graylog-0/graylog] at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitor.lookupServerDescription(DefaultServerMonitor.java:253)
[pod/graylog-0/graylog] at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitor.run(DefaultServerMonitor.java:203)
[pod/graylog-0/graylog] Caused by: java.net.ConnectException: Connection refused
[pod/graylog-0/graylog] at java.base/sun.nio.ch.Net.pollConnect(Native Method)
[pod/graylog-0/graylog] at java.base/sun.nio.ch.Net.pollConnectNow(Unknown Source)
[pod/graylog-0/graylog] at java.base/sun.nio.ch.NioSocketImpl.timedFinishConnect(Unknown Source)
[pod/graylog-0/graylog] at java.base/sun.nio.ch.NioSocketImpl.connect(Unknown Source)
[pod/graylog-0/graylog] at java.base/java.net.SocksSocketImpl.connect(Unknown Source)
[pod/graylog-0/graylog] at java.base/java.net.Socket.connect(Unknown Source)
[pod/graylog-0/graylog] at com.mongodb.internal.connection.SocketStreamHelper.initialize(SocketStreamHelper.java:76)
[pod/graylog-0/graylog] at com.mongodb.internal.connection.SocketStream.initializeSocket(SocketStream.java:104)
[pod/graylog-0/graylog] at com.mongodb.internal.connection.SocketStream.open(SocketStream.java:79)
[pod/graylog-0/graylog] … 4 more
Is not causing any issue, graylog connects fine to mongodb, i just don’t understand why it is trying to connect to 127.0.0.1, as my mongodb connect string refers remote mongodbs.
Sames issue with 7.0.4.
Up to 7.0.2 there was no such error message.
2. Describe your environment:
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OS Information: Kubernetes v1.32.10
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Package Version: graylog:7.0.3