[CentOS] Perfomance tuning for NIS client

joseph blase joseph.mailboxlist at gmail.com
Fri Oct 12 19:45:14 UTC 2007


Hi,

I have both linux and solaris NIS client against a Solaris NIS Server, but
my linux box are shamefully slow compare to solaris some sample:

on Solaris 5.8:

# ypwhich
transporter02.domain.com
# time id userid
uid=36923(userid) gid=36923(u_036923)

real        0.0
user        0.0
sys         0.0

on Linux:

[root at linux]# ypwhich
transporter02.domain.com
[root at amsdc2-n-s04taw root]# time id userid
uid=36923(userid) gid=36923(u_036923) groups=36923(u_036923)

real    0m10.509s
user    0m0.030s
sys     0m0.090s

********** Route****************

[root at linux]# traceroute transporter02
traceroute to transporter02.domain.com (IP), 30 hops max, 46 byte packets
 1  nlamsdc2mp078-hsrp.net-equip.domain.net (IP)  0.000 ms  0.000 ms  0.000ms
 2  transporter02.domain.com (IP)  0.000 ms  0.000 ms  0.000 ms

solaris# traceroute transporter02
traceroute to transporter02.domain.com (145.6.246.53), 30 hops max, 40 byte
packets
 1  transporter02.domain.com (145.6.246.53)  0.462 ms  0.279 ms  0.306 ms

Although I considered that latency involved but still I'm not statisfied, is
there any tunable parameter that I can set on linux box to somehow improve
the performance?

I also noticed things that I'm not sure if this is default on linux nis
bindings:

[root at linux]# pwd
/var/yp/binding
[root at linux]# ls
NONAME.DOMAIN.COM.1  NONAME.DOMAIN.COM.2  ===> why there are two of this on
linux?

solaris# cd /var/yp/binding
solaris# ls
NONAME.DOMAIN.COM  xprt.tcp.3        xprt.ticlts.3     xprt.ticotsord.2
xprt.udp.2
xprt.tcp.1        xprt.ticlts.1     xprt.ticots.3     xprt.ticotsord.3
xprt.udp.3
xprt.tcp.2        xprt.ticlts.2     xprt.ticotsord.1  xprt.udp.1
ypbind.pid

Thanks in advance for any feedback.

Things I've tried to tweak:

* put NIS Server IP on /etc/yp.conf
* put NIS Server IP on /etc/hosts
no positive result.


joseph
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