[gpfsug-discuss] Spectrum Scale Cygwin cmd delays

[IBM Spectrum Scale]

Hello Renar,

A few things to try:

Make sure IPv6 is disabled. On each Windows node, run "mmcmi  host 
<hostname>", with <hostname> being itself and each and every node in the 
cluster. Make sure mmcmi prints valid IPv4 address.
To eliminate DNS issues, try adding IPv4 entries for each cluster node in 
"c:\windows\system32\drivers\etc\hosts".
If any anti-virus is active, disable realtime scanning on c:\cygwin64 
(wherever you installed cygwin 64-bit).

You can also try debugging a script, say: (from GPFS ksh):  DEBUG=1 
mmlscluster, and see what takes time.

Regards, The Spectrum Scale (GPFS) team

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From:   "Grunenberg, Renar" <Renar.Grunenberg at huk-coburg.de>
To:     "'gpfsug-discuss at spectrumscale.org'" 
<gpfsug-discuss at spectrumscale.org>
Date:   01/21/2019 08:01 AM
Subject:        [gpfsug-discuss] Spectrum Scale Cygwin cmd delays
Sent by:        gpfsug-discuss-bounces at spectrumscale.org



Hello All,
We test spectrum scale on an windows only Client-Cluster (remote mounted 
to a linux Cluster) but
the execution of mm commands in cygwin is very slow. 
We have tried the following adjustments to increase the execution speed.
 
We have installed Cygwin Server as a service (cygserver-config). 
Unfortunately, this resulted in no faster execution.
Adaptation of the hosts file: 127.0.0.1 localhost cygdrive wpad
to prevent any DNS problems when accessing ?/cygdrive/...?
Started them as Administrator
 
All adjustments have so far not led to any improvement. Are there any 
hints to enhance the cmd execution time on windows (w2k12 actual used)
 
Regards Renar
 
Renar Grunenberg
Abteilung Informatik - Betrieb

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