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Nodes making use of RDS/IB are constantly logging "kernel: RDS/IB: connection <,> dropped" and a re-connect message. Affected Nodes Sometimes reboot. (Doc ID 2097612.1)

Last updated on AUGUST 04, 2018

Applies to:

Linux OS - Version Oracle Linux 5.0 and later
Linux x86-64
Linux x86


On Oracle Linux, release 5.10, making use of the Reliable Datagram Sockets (RDS) protocols , a node is constantly logging the following kind of error messages :

Jan 15 01:17:45 node1 kernel: RDS/IB: connection <,> dropped

This error message is followed by a reconnection message :

Jan 15 01:17:45 node1 kernel: RDS/IB: connected <,> version 4.1

 And sometimes the node reboots, at irregular intervals.

Investigating the CRSS logs files if using a clustered database, the following kind of error message may also get logged :

2016-01-15 16:37:46.377: [cssd(15034)]CRS-1610:Network communication with node node2 (2) missing for 90% of timeout interval. Removal of this node from cluster in 5.190 seconds

 And sometimes yield a node reboot.


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