Unix True 64 - Trucluster (5.1B PK3) TCP problem retransmision

Author

Trucluster (5.1B PK3) TCP problem retransmision

Krzysiek

2005-11-08, 6:28 pm

Hello,

I have problem with retransmisions of packets.

I have 2 node cluster.
On 1 node is everything OK, 1 retransmision is after 1 seconds, 2
retransmision is after 6 sec. than 12 sec. etc.
On 2 node 1 retransmision is after 20 sec. or 25 or 32 ....

Kernel parameters (inet , net , socket) on both nodes are the same.
Where is the problem ? What is needed to change ?

Greetings,
Christopher

Jack Estes

2005-11-09, 5:53 pm

what interface are these retransmissions occuring on? Any chance these
are happening over the cluster interconnect? What is the interconnect
BTW?

What are these nodes doing? Is it a pure active/passive trucluster or
do you have some app that lives only on one node?

Have you captured any of these packets to study the payloads or at
least the target address in the header? Perhaps you're looking at a
problem on the other end of the socket.

Jack