>> tcp6       1      0 129.129.95.84:40038     129.129.99.247:39707    CLOSE_WAIT  39131/gpfs.ganesha
 
Looks like ganesha daemon is not closing socket fds for some reason. can you check the listener at service port number 39707 at the peer (ip address 129.129.99.247) above? "rpcinfo -p 129.129.99.247" may give us some info. If a service is restarted at the peer,  it may not match though.
 
Regards, Malahal.
 
----- Original message -----
From: Leonardo Sala <[email protected]>
Sent by: [email protected]
To: gpfsug main discussion list <[email protected]>, "Frederick Stock" <[email protected]>
Cc:
Subject: [EXTERNAL] Re: [gpfsug-discuss] Thousands of CLOSE_WAIT IPV6 connections on CES
Date: Wed, Feb 26, 2020 2:02 AM
 

Hi Frederick,

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

[root@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
[email protected]
www.psi.ch
On 25.02.20 15:01, Frederick Stock wrote:
netstat -ntp | grep "\:9094 .*CLOSE_WAIT" | wc -l
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