[gpfsug-discuss] Thousands of CLOSE_WAIT IPV6 connections on CES

[Leonardo Sala]

Hi Frederick,

thanks for the answer! Unfortunately it seems not the case :(

[root at xbl-ces-4 ~]# netstat -ntp | grep "\:9094 .*CLOSE_WAIT" | wc -l
0

In our case, Zimon does not directly interact with Grafana over the 
bridge, but we have a small python script that (through Telegraf) polls 
the collector and ingest data into InfluxDB, which acts as data source 
for Grafana. An example of the opened port is:

tcp6       1      0 129.129.95.84:40038 129.129.99.247:39707    
CLOSE_WAIT  39131/gpfs.ganesha.

We opened a PMR to check what's happening, let's see :) But possibly 
first thing to do is to disable IPv6

cheers

leo

Paul Scherrer Institut
Dr. Leonardo Sala
Group Leader High Performance Computing
Deputy Section Head Science IT
Science IT
WHGA/036
Forschungstrasse 111
5232 Villigen PSI
Switzerland

Phone: +41 56 310 3369
leonardo.sala at psi.ch
www.psi.ch

On 25.02.20 15:01, Frederick Stock wrote:
> netstat -ntp | grep "\:9094 .*CLOSE_WAIT" | wc -l
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