[BUG] pbench-uperf run fails with port 20000 open in the firewall because it starts with 20010

[ndokos]

Is there an existing issue for this?

• I have searched the existing issues

Description

pbench-uperf is supposed to start with port 20000 for the first server and then go up with an increment of 10 for each subsequent pair. Instead, it starts with 20010.

To Reproduce

I opened port 20000 (on both client and server hosts) and ran

pbench-uperf --samples=1 --clients=${UPERF_CLIENTS} --servers=${UPERF_SERVERS} --test-types=stream,maerts,bidirec,rr --instances=8 --protocols=tcp,udp --runtime=30 --message-sizes=16384

Actual Results

# cd ${pbench_run_dir{
# cat */sample1/client\:\:dhcp31-125-server\:\:dhcp31-106\:20010--client_output.txt
Error getting SSL CTX:1
Allocating shared memory of size 162984 bytes
Error connecting to dhcp31-106

** TCP: Cannot connect to dhcp31-106:20010 No route to host
Error getting SSL CTX:1
Allocating shared memory of size 159592 bytes
Error connecting to dhcp31-106

** TCP: Cannot connect to dhcp31-106:20010 No route to host
Error getting SSL CTX:1
Allocating shared memory of size 159592 bytes
Error connecting to dhcp31-106

...

Note the port number.

Expected Results

No errors.

Additional information

The bug is that we set $server_nr=1 before the loop in bench-scripts/pbench-uperf:L613. We should be starting at 0.

[portante]

Not worth changing the actual behavior, we should fix the documentation to describe the current behavior.

[ndokos]

I'll fix the doc. In addition, the doc needs to mention that the local ports on each system need to be open.